html_url,id,node_id,tag_name,target_commitish,name,draft,author,prerelease,created_at,published_at,body,repo,reactions
https://github.com/simonw/datasette/releases/tag/1.0a6,120375181,RE_kwDOBm6k_c4HLMeN,1.0a6,main,1.0a6,0,9599,1,2023-09-08T04:44:08Z,2023-09-08T04:45:12Z,"- New plugin hook: [actors_from_ids(datasette, actor_ids)](https://docs.datasette.io/en/latest/plugin_hooks.html#plugin-hook-actors-from-ids) and an internal method to accompany it, [await .actors_from_ids(actor_ids)](https://docs.datasette.io/en/latest/internals.html#datasette-actors-from-ids). This mechanism is intended to be used by plugins that may need to display the actor who was responsible for something managed by that plugin: they can now resolve the recorded IDs of actors into the full actor objects. ([#2181](https://github.com/simonw/datasette/issues/2181))
- `DATASETTE_LOAD_PLUGINS` environment variable for [controlling which plugins](https://docs.datasette.io/en/latest/plugins.html#plugins-datasette-load-plugins) are loaded by Datasette. ([#2164](https://github.com/simonw/datasette/issues/2164))
- Datasette now checks if the user has permission to view a table linked to by a foreign key before turning that foreign key into a clickable link. ([#2178](https://github.com/simonw/datasette/issues/2178))
- The `execute-sql` permission now implies that the actor can also view the database and instance. ([#2169](https://github.com/simonw/datasette/issues/2169))
- Documentation describing a pattern for building plugins that themselves [define further hooks](https://docs.datasette.io/en/latest/writing_plugins.html#writing-plugins-extra-hooks) for other plugins. ([#1765](https://github.com/simonw/datasette/issues/1765))
- Datasette is now tested against the Python 3.12 preview. ([#2175](https://github.com/simonw/datasette/pull/2175))",107914493,
https://github.com/simonw/datasette/releases/tag/1.0a5,119112633,RE_kwDOBm6k_c4HGYO5,1.0a5,main,1.0a5,0,9599,1,2023-08-29T17:17:54Z,2023-08-29T17:19:35Z,"- When restrictions are applied to [API tokens](https://docs.datasette.io/en/1.0a5/authentication.html#createtokenview), those restrictions now behave slightly differently: applying the `view-table` restriction will imply the ability to `view-database` for the database containing that table, and both `view-table` and `view-database` will imply `view-instance`. Previously you needed to create a token with restrictions that explicitly listed `view-instance` and `view-database` and `view-table` in order to view a table without getting a permission denied error. ([#2102](https://github.com/simonw/datasette/issues/2102))
- New `datasette.yaml` (or `.json`) configuration file, which can be specified using `datasette -c path-to-file`. The goal here to consolidate settings, plugin configuration, permissions, canned queries, and other Datasette configuration into a single single file, separate from `metadata.yaml`. The legacy `settings.json` config file used for [Configuration directory mode](https://docs.datasette.io/en/1.0a5/settings.html#config-dir) has been removed, and `datasette.yaml` has a `""settings""` section where the same settings key/value pairs can be included. In the next future alpha release, more configuration such as plugins/permissions/canned queries will be moved to the `datasette.yaml` file. See [#2093](https://github.com/simonw/datasette/issues/2093) for more details. Thanks, Alex Garcia.
- The `-s/--setting` option can now take dotted paths to nested settings. These will then be used to set or over-ride the same options as are present in the new configuration file. ([#2156](https://github.com/simonw/datasette/issues/2156))
- New `--actor '{""id"": ""json-goes-here""}'` option for use with `datasette --get` to treat the simulated request as being made by a specific actor, see [datasette --get](https://docs.datasette.io/en/1.0a5/cli-reference.html#cli-datasette-get). ([#2153](https://github.com/simonw/datasette/issues/2153))
- The Datasette `_internal` database has had some changes. It no longer shows up in the `datasette.databases` list by default, and is now instead available to plugins using the `datasette.get_internal_database()`. Plugins are invited to use this as a private database to store configuration and settings and secrets that should not be made visible through the default Datasette interface. Users can pass the new `--internal internal.db` option to persist that internal database to disk. Thanks, Alex Garcia. ([#2157](https://github.com/simonw/datasette/issues/2157)).",107914493,
https://github.com/simonw/datasette/releases/tag/1.0a4,118245443,RE_kwDOBm6k_c4HDEhD,1.0a4,main,1.0a4,0,9599,1,2023-08-22T17:10:01Z,2023-08-22T17:13:26Z,"This alpha fixes a security issue with the `/-/api` API explorer. On authenticated Datasette instances (instances protected using plugins such as [datasette-auth-passwords](https://datasette.io/plugins/datasette-auth-passwords)) the API explorer interface could reveal the names of databases and tables within the protected instance. The data stored in those tables was not revealed.

For more information and workarounds, read [the security advisory](https://github.com/simonw/datasette/security/advisories/GHSA-7ch3-7pp7-7cpq). The issue has been present in every previous alpha version of Datasette 1.0: versions 1.0a0, 1.0a1, 1.0a2 and 1.0a3.

Also in this alpha:

- The new `datasette plugins --requirements` option outputs a list of currently installed plugins in Python `requirements.txt` format, useful for duplicating that installation elsewhere. ([#2133](https://github.com/simonw/datasette/issues/2133))
- [Writable canned queries](https://docs.datasette.io/en/latest/sql_queries.html#canned-queries-writable) can now define a `on_success_message_sql` field in their configuration, containing a SQL query that should be executed upon successful completion of the write operation in order to generate a message to be shown to the user. ([#2138](https://github.com/simonw/datasette/issues/2138))
- The automatically generated border color for a database is now shown in more places around the application. ([#2119](https://github.com/simonw/datasette/issues/2119))
- Every instance of example shell script code in the documentation should now include a working copy button, free from additional syntax. ([#2140](https://github.com/simonw/datasette/issues/2140))",107914493,"{""url"": ""https://api.github.com/repos/simonw/datasette/releases/118245443/reactions"", ""total_count"": 3, ""+1"": 0, ""-1"": 0, ""laugh"": 0, ""hooray"": 2, ""confused"": 0, ""heart"": 1, ""rocket"": 0, ""eyes"": 0}"
https://github.com/simonw/datasette/releases/tag/1.0a3,115813784,RE_kwDOBm6k_c4G5y2Y,1.0a3,main,1.0a3,0,9599,1,2023-08-09T19:13:11Z,2023-08-09T19:17:26Z,"This alpha release previews the updated design for Datasette's default JSON API. ([#782](https://github.com/simonw/datasette/issues/782))

The new [default JSON representation](https://docs.datasette.io/en/1.0a3/json_api.html#json-api-default) for both table pages (`/dbname/table.json`) and arbitrary SQL queries (`/dbname.json?sql=...`) is now shaped like this:
```json
{
  ""ok"": true,
  ""rows"": [
    {
      ""id"": 3,
      ""name"": ""Detroit""
    },
    {
      ""id"": 2,
      ""name"": ""Los Angeles""
    },
    {
      ""id"": 4,
      ""name"": ""Memnonia""
    },
    {
      ""id"": 1,
      ""name"": ""San Francisco""
    }
  ],
  ""truncated"": false
}
```
Tables will include an additional `""next""` key for pagination, which can be passed to `?_next=` to fetch the next page of results.

The various `?_shape=` options continue to work as before - see [Different shapes](https://docs.datasette.io/en/1.0a3/json_api.html#json-api-shapes) for details.

A new `?_extra=` mechanism is available for tables, but has not yet been stabilized or documented. Details on that are available in [#262](https://github.com/simonw/datasette/issues/262).

### Smaller changes

- Datasette documentation now shows YAML examples for [Metadata](https://docs.datasette.io/en/1.0a3/metadata.html#metadata) by default, with a tab interface for switching to JSON. ([#1153](https://github.com/simonw/datasette/issues/1153))
- [register_output_renderer(datasette)](https://docs.datasette.io/en/1.0a3/plugin_hooks.html#plugin-register-output-renderer) plugins now have access to `error` and `truncated` arguments, allowing them to display error messages and take into account truncated results. ([#2130](https://github.com/simonw/datasette/issues/2130))
- `render_cell()` plugin hook now also supports an optional `request` argument. ([#2007](https://github.com/simonw/datasette/issues/2007))
- New `Justfile` to support development workflows for Datasette using [Just](https://github.com/casey/just).
- `datasette.render_template()` can now accepts a `datasette.views.Context` subclass as an alternative to a dictionary. ([#2127](https://github.com/simonw/datasette/issues/2127))
- `datasette install -e path` option for editable installations, useful while developing plugins. ([#2106](https://github.com/simonw/datasette/issues/2106))
- When started with the `--cors` option Datasette now serves an `Access-Control-Max-Age: 3600` header, ensuring CORS OPTIONS requests are repeated no more than once an hour. ([#2079](https://github.com/simonw/datasette/issues/2079))
- Fixed a bug where the `_internal` database could display `None` instead of `null` for in-memory databases. ([#1970](https://github.com/simonw/datasette/issues/1970))",107914493,"{""url"": ""https://api.github.com/repos/simonw/datasette/releases/115813784/reactions"", ""total_count"": 3, ""+1"": 0, ""-1"": 0, ""laugh"": 0, ""hooray"": 0, ""confused"": 0, ""heart"": 0, ""rocket"": 3, ""eyes"": 0}"
https://github.com/simonw/datasette/releases/tag/1.0a2,86103928,RE_kwDOBm6k_c4FIdd4,1.0a2,main,1.0a2,0,9599,1,2022-12-15T02:02:42Z,2022-12-15T02:03:59Z,"The third Datasette 1.0 alpha release adds upsert support to the JSON API, plus the ability to specify finely grained permissions when creating an API token.

See [Datasette 1.0a2: Upserts and finely grained permissions](https://simonwillison.net/2022/Dec/15/datasette-1a2/) for an extended, annotated version of these release notes.

- New `/db/table/-/upsert` API, [documented here](https://docs.datasette.io/en/latest/json_api.html#tableupsertview). upsert is an update-or-insert: existing rows will have specified keys updated, but if no row matches the incoming primary key a brand new row will be inserted instead. ([#1878](https://github.com/simonw/datasette/issues/1878))
- New [register_permissions(datasette)](https://docs.datasette.io/en/latest/plugin_hooks.html#plugin-register-permissions) plugin hook. Plugins can now register named permissions, which will then be listed in various interfaces that show available permissions. ([#1940](https://github.com/simonw/datasette/issues/1940))
- The `/db/-/create` API for [creating a table](https://docs.datasette.io/en/latest/json_api.html#tablecreateview) now accepts `""ignore"": true` and `""replace"": true` options when called with the `""rows""` property that creates a new table based on an example set of rows. This means the API can be called multiple times with different rows, setting rules for what should happen if a primary key collides with an existing row. ([#1927](https://github.com/simonw/datasette/issues/1927))
- Arbitrary permissions can now be configured at the instance, database and resource (table, SQL view or canned query) level in Datasette's [Metadata](https://docs.datasette.io/en/latest/metadata.html#metadata) JSON and YAML files. The new `""permissions""` key can be used to specify which actors should have which permissions. See [Other permissions in metadata](https://docs.datasette.io/en/latest/authentication.html#authentication-permissions-other) for details. ([#1636](https://github.com/simonw/datasette/issues/1636))
- The `/-/create-token` page can now be used to create API tokens which are restricted to just a subset of actions, including against specific databases or resources. See [API Tokens](https://docs.datasette.io/en/latest/authentication.html#createtokenview) for details. ([#1947](https://github.com/simonw/datasette/issues/1947))
- Likewise, the [datasette create-token](https://docs.datasette.io/en/latest/internals.html#create-token-actor-id-expires-after-none-restrict-all-none-restrict-database-none-restrict-resource-none) CLI command can now create tokens with [a subset of permissions](https://docs.datasette.io/en/latest/authentication.html#authentication-cli-create-token-restrict). ([#1855](https://github.com/simonw/datasette/issues/1855))
- New datasette.create_token() API method <datasette_create_token>` for programmatically creating signed API tokens. ([#1951](https://github.com/simonw/datasette/issues/1951))
- `/db/-/create` API now requires actor to have `insert-row` permission in order to use the `""row""` or `""rows""` properties. ([#1937](https://github.com/simonw/datasette/issues/1937))",107914493,
https://github.com/simonw/datasette/releases/tag/1.0a1,84755750,RE_kwDOBm6k_c4FDUUm,1.0a1,main,1.0a1,0,9599,1,2022-12-01T21:30:39Z,2022-12-01T21:42:45Z,"- Write APIs now serve correct CORS headers if Datasette is started in `--cors` mode. See the full list of [CORS headers](https://docs.datasette.io/en/latest/json_api.html#json-api) in the documentation. ([#1922](https://github.com/simonw/datasette/issues/1922))
- Fixed a bug where the `_memory` database could be written to even though writes were not persisted. ([#1917](https://github.com/simonw/datasette/issues/1917))
- The <https://latest.datasette.io/> demo instance now includes an `ephemeral` database which can be used to test Datasette's write APIs, using the new [datasette-ephemeral-tables](https://datasette.io/plugins/datasette-ephemeral-tables) plugin to drop any created tables after five minutes. This database is only available if you sign in as the root user using the link on the homepage. ([#1915](https://github.com/simonw/datasette/issues/1915))
- Fixed a bug where hitting the write endpoints with a `GET` request returned a 500 error. It now returns a 405 (method not allowed) error instead. ([#1916](https://github.com/simonw/datasette/issues/1916))
- The list of endpoints in the API explorer now lists mutable databases first. ([#1918](https://github.com/simonw/datasette/issues/1918))
- The `""ignore"": true` and `""replace"": true` options for the insert API are [now documented](https://docs.datasette.io/en/latest/json_api.html#tableinsertview). ([#1924](https://github.com/simonw/datasette/issues/1924))",107914493,
https://github.com/simonw/datasette/releases/tag/1.0a0,84496148,RE_kwDOBm6k_c4FCU8U,1.0a0,main,1.0a0,0,9599,1,2022-11-29T19:57:54Z,2022-11-29T19:58:55Z,"This first alpha release of Datasette 1.0 introduces a brand new collection of APIs for writing to the database ([#1850](https://github.com/simonw/datasette/issues/1850)), as well as a new API token mechanism baked into Datasette core. Previously, API tokens have only been supported by installing additional plugins.

This is very much a preview: expect many more backwards incompatible API changes prior to the full 1.0 release.

Feedback enthusiastically welcomed, either through [issue comments](https://github.com/simonw/datasette/issues/1850) or via the [Datasette Discord](https://datasette.io/discord) community.

### Signed API tokens

- New `/-/create-token` page allowing authenticated users to create signed API tokens that can act on their behalf, see [API Tokens](https://docs.datasette.io/en/1.0-dev/authentication.html#createtokenview). ([#1852](https://github.com/simonw/datasette/issues/1852))
- New `datasette create-token` command for creating tokens from the command line: [datasette create-token](https://docs.datasette.io/en/1.0-dev/authentication.html#authentication-cli-create-token).
- New [allow_signed_tokens](https://docs.datasette.io/en/1.0-dev/settings.html#setting-allow-signed-tokens) setting which can be used to turn off signed token support. ([#1856](https://github.com/simonw/datasette/issues/1856))
- New [max_signed_tokens_ttl](https://docs.datasette.io/en/1.0-dev/settings.html#setting-max-signed-tokens-ttl) setting for restricting the maximum allowed duration of a signed token. ([#1858](https://github.com/simonw/datasette/issues/1858))

### Write API

- New API explorer at `/-/api` for trying out the API. ([#1871](https://github.com/simonw/datasette/issues/1871))
- `/db/-/create` API for [Creating a table](https://docs.datasette.io/en/1.0-dev/json_api.html#tablecreateview). ([#1882](https://github.com/simonw/datasette/issues/1882))
- `/db/table/-/insert` API for [Inserting rows](https://docs.datasette.io/en/1.0-dev/json_api.html#tableinsertview). ([#1851](https://github.com/simonw/datasette/issues/1851))
- `/db/table/-/drop` API for [Dropping tables](https://docs.datasette.io/en/1.0-dev/json_api.html#tabledropview). ([#1874](https://github.com/simonw/datasette/issues/1874))
- `/db/table/pk/-/update` API for [Updating a row](https://docs.datasette.io/en/1.0-dev/json_api.html#rowupdateview). ([#1863](https://github.com/simonw/datasette/issues/1863))
- `/db/table/pk/-/delete` API for [Deleting a row](https://docs.datasette.io/en/1.0-dev/json_api.html#rowdeleteview). ([#1864](https://github.com/simonw/datasette/issues/1864))",107914493,"{""url"": ""https://api.github.com/repos/simonw/datasette/releases/84496148/reactions"", ""total_count"": 2, ""+1"": 0, ""-1"": 0, ""laugh"": 0, ""hooray"": 2, ""confused"": 0, ""heart"": 0, ""rocket"": 0, ""eyes"": 0}"
https://github.com/simonw/datasette/releases/tag/0.63.1,82765509,RE_kwDOBm6k_c4E7ubF,0.63.1,main,0.63.1,0,9599,0,2022-11-11T07:01:20Z,2022-11-11T07:02:36Z,"- Fixed a bug where Datasette's table filter form would not redirect correctly when run behind a proxy using the [base_url](https://docs.datasette.io/en/stable/settings.html#setting-base-url) setting. ([#1883](https://github.com/simonw/datasette/issues/1883))
- SQL query is now shown wrapped in a `<textarea>` if a query exceeds a time limit. ([#1876](https://github.com/simonw/datasette/issues/1876))
- Fixed an intermittent ""Too many open files"" error while running the test suite. ([#1843](https://github.com/simonw/datasette/issues/1843))
- New [db.close()](https://docs.datasette.io/en/stable/internals.html#database-close) internal method.",107914493,"{""url"": ""https://api.github.com/repos/simonw/datasette/releases/82765509/reactions"", ""total_count"": 1, ""+1"": 1, ""-1"": 0, ""laugh"": 0, ""hooray"": 0, ""confused"": 0, ""heart"": 0, ""rocket"": 0, ""eyes"": 0}"
https://github.com/simonw/datasette/releases/tag/0.63,81262417,RE_kwDOBm6k_c4E1_dR,0.63,main,0.63,0,9599,0,2022-10-27T22:11:26Z,2022-10-27T22:13:32Z,"See [Datasette 0.63: The annotated release notes](https://simonwillison.net/2022/Oct/27/datasette-0-63/) for more background on the changes in this release.

## Features

- Now tested against Python 3.11. Docker containers used by `datasette publish` and `datasette package` both now use that version of Python. ([#1853](https://github.com/simonw/datasette/issues/1853))
- `--load-extension` option now supports entrypoints. Thanks, Alex Garcia. ([#1789](https://github.com/simonw/datasette/pull/1789))
- Facet size can now be set per-table with the new `facet_size` table metadata option. ([#1804](https://github.com/simonw/datasette/issues/1804))
- The [truncate_cells_html](https://docs.datasette.io/en/stable/settings.html#setting-truncate-cells-html) setting now also affects long URLs in columns. ([#1805](https://github.com/simonw/datasette/issues/1805))
- The non-JavaScript SQL editor textarea now increases height to fit the SQL query. ([#1786](https://github.com/simonw/datasette/issues/1786))
- Facets are now displayed with better line-breaks in long values. Thanks, Daniel Rech. ([#1794](https://github.com/simonw/datasette/pull/1794))
- The `settings.json` file used in [Configuration directory mode](https://docs.datasette.io/en/stable/settings.html#config-dir) is now validated on startup. ([#1816](https://github.com/simonw/datasette/issues/1816))
- SQL queries can now include leading SQL comments, using `/* ... */` or `-- ...` syntax. Thanks, Charles Nepote. ([#1860](https://github.com/simonw/datasette/issues/1860))
- SQL query is now re-displayed when terminated with a time limit error. ([#1819](https://github.com/simonw/datasette/issues/1819))
- The [inspect data](https://docs.datasette.io/en/stable/performance.html#performance-inspect) mechanism is now used to speed up server startup - thanks, Forest Gregg. ([#1834](https://github.com/simonw/datasette/issues/1834))
- In [Configuration directory mode](https://docs.datasette.io/en/stable/settings.html#config-dir) databases with filenames ending in `.sqlite` or `.sqlite3` are now automatically added to the Datasette instance. ([#1646](https://github.com/simonw/datasette/issues/1646))
- Breadcrumb navigation display now respects the current user's permissions. ([#1831](https://github.com/simonw/datasette/issues/1831))

## Plugin hooks and internals

- The [prepare_jinja2_environment(env, datasette)](https://docs.datasette.io/en/stable/plugin_hooks.html#plugin-hook-prepare-jinja2-environment) plugin hook now accepts an optional `datasette` argument. Hook implementations can also now return an `async` function which will be awaited automatically. ([#1809](https://github.com/simonw/datasette/issues/1809))
- `Database(is_mutable=)` now defaults to `True`. ([#1808](https://github.com/simonw/datasette/issues/1808))
- The [datasette.check_visibility()](https://docs.datasette.io/en/stable/internals.html#datasette-check-visibility) method now accepts an optional `permissions=` list, allowing it to take multiple permissions into account at once when deciding if something should be shown as public or private. This has been used to correctly display padlock icons in more places in the Datasette interface. ([#1829](https://github.com/simonw/datasette/issues/1829))
- Datasette no longer enforces upper bounds on its dependencies. ([#1800](https://github.com/simonw/datasette/issues/1800))

## Documentation

- New tutorial: [Cleaning data with sqlite-utils and Datasette](https://datasette.io/tutorials/clean-data).
- Screenshots in the documentation are now maintained using [shot-scraper](https://shot-scraper.datasette.io/), as described in [Automating screenshots for the Datasette documentation using shot-scraper](https://simonwillison.net/2022/Oct/14/automating-screenshots/). ([#1844](https://github.com/simonw/datasette/issues/1844))
- More detailed command descriptions on the [CLI reference](https://docs.datasette.io/en/stable/cli-reference.html#cli-reference) page. ([#1787](https://github.com/simonw/datasette/issues/1787))
- New documentation on [Running Datasette using OpenRC](https://docs.datasette.io/en/stable/deploying.html#deploying-openrc) - thanks, Adam Simpson. ([#1825](https://github.com/simonw/datasette/pull/1825))",107914493,"{""url"": ""https://api.github.com/repos/simonw/datasette/releases/81262417/reactions"", ""total_count"": 1, ""+1"": 0, ""-1"": 0, ""laugh"": 0, ""hooray"": 0, ""confused"": 0, ""heart"": 1, ""rocket"": 0, ""eyes"": 0}"
https://github.com/simonw/datasette/releases/tag/0.63a1,80750406,RE_kwDOBm6k_c4E0CdG,0.63a1,main,0.63a1,0,9599,1,2022-10-24T03:07:09Z,2022-10-24T03:11:47Z,"- SQL query is now re-displayed when terminated with a time limit error. ([#1819](https://github.com/simonw/datasette/issues/1819))
- New documentation on [Running Datasette using OpenRC](https://docs.datasette.io/en/latest/deploying.html#deploying-openrc) - thanks, Adam Simpson. ([#1825](https://github.com/simonw/datasette/pull/1825))
- The [inspect data](https://docs.datasette.io/en/latest/performance.html#performance-inspect) mechanism is now used to speed up server startup - thanks, Forest Gregg. ([#1834](https://github.com/simonw/datasette/issues/1834))
- In [Configuration directory mode](https://docs.datasette.io/en/latest/settings.html#config-dir) databases with filenames ending in `.sqlite` or `.sqlite3` are now automatically added to the Datasette instance. ([#1646](https://github.com/simonw/datasette/issues/1646))
- Breadcrumb navigation display now respects the current user's permissions. ([#1831](https://github.com/simonw/datasette/issues/1831))
- Screenshots in the documentation are now maintained using [shot-scraper](https://shot-scraper.datasette.io/), as described in [Automating screenshots for the Datasette documentation using shot-scraper](https://simonwillison.net/2022/Oct/14/automating-screenshots/). ([#1844](https://github.com/simonw/datasette/issues/1844))
- The [datasette.check_visibility()](https://docs.datasette.io/en/latest/internals.html#datasette-check-visibility) method now accepts an optional `permissions=` list, allowing it to take multiple permissions into account at once when deciding if something should be shown as public or private. This has been used to correctly display padlock icons in more places in the Datasette interface. ([#1829](https://github.com/simonw/datasette/issues/1829))",107914493,"{""url"": ""https://api.github.com/repos/simonw/datasette/releases/80750406/reactions"", ""total_count"": 2, ""+1"": 0, ""-1"": 0, ""laugh"": 0, ""hooray"": 0, ""confused"": 0, ""heart"": 2, ""rocket"": 0, ""eyes"": 0}"
https://github.com/simonw/datasette/releases/tag/0.63a0,78197386,RE_kwDOBm6k_c4EqTKK,0.63a0,main,0.63a0,0,9599,1,2022-09-26T21:14:25Z,2022-09-26T21:56:30Z,"- The [prepare_jinja2_environment(env, datasette)](https://docs.datasette.io/en/latest/plugin_hooks.html#plugin-hook-prepare-jinja2-environment) plugin hook now accepts an optional `datasette` argument. Hook implementations can also now return an `async` function which will be awaited automatically. ([#1809](https://github.com/simonw/datasette/issues/1809))
- `--load-extension` option now supports entrypoints. Thanks, Alex Garcia. ([#1789](https://github.com/simonw/datasette/pull/1789))
- New tutorial: [Cleaning data with sqlite-utils and Datasette](https://datasette.io/tutorials/clean-data).
- Facet size can now be set per-table with the new `facet_size` table metadata option. ([#1804](https://github.com/simonw/datasette/issues/1804))
- `truncate_cells_html` setting now also affects long URLs in columns. ([#1805](https://github.com/simonw/datasette/issues/1805))
- `Database(is_mutable=)` now defaults to `True`. ([#1808](https://github.com/simonw/datasette/issues/1808))
- Non-JavaScript textarea now increases height to fit the SQL query. ([#1786](https://github.com/simonw/datasette/issues/1786))
- More detailed command descriptions on the [CLI reference](https://docs.datasette.io/en/latest/cli-reference.html#cli-reference) page. ([#1787](https://github.com/simonw/datasette/issues/1787))
- Datasette no longer enforces upper bounds on its depenedencies. ([#1800](https://github.com/simonw/datasette/issues/1800))
- Facets are now displayed with better line-breaks in long values. Thanks, Daniel Rech. ([#1794](https://github.com/simonw/datasette/pull/1794))
- The `settings.json` file used in [Configuration directory mode](https://docs.datasette.io/en/latest/settings.html#config-dir) is now validated on startup. ([#1816](https://github.com/simonw/datasette/issues/1816))",107914493,
https://github.com/simonw/datasette/releases/tag/0.62,74385093,RE_kwDOBm6k_c4EbwbF,0.62,main,0.62,0,9599,0,2022-08-14T17:32:42Z,2022-08-14T17:43:05Z,"Datasette can now run entirely in your browser using WebAssembly. Try out [Datasette Lite](https://lite.datasette.io/), take a look [at the code](https://github.com/simonw/datasette-lite) or read more about it in [Datasette Lite: a server-side Python web application running in a browser](https://simonwillison.net/2022/May/4/datasette-lite/).

Datasette now has a [Discord community](https://discord.gg/ktd74dm5mw) for questions and discussions about Datasette and its ecosystem of projects.

## Features

-   Datasette is now compatible with [Pyodide](https://pyodide.org/). This is the enabling technology behind [Datasette Lite](https://lite.datasette.io/). ([#1733](https://github.com/simonw/datasette/issues/1733))
-   Database file downloads now implement conditional GET using ETags. ([#1739](https://github.com/simonw/datasette/issues/1739))
-   HTML for facet results and suggested results has been extracted out into new templates `_facet_results.html` and `_suggested_facets.html`. Thanks, M. Nasimul Haque. ([#1759](https://github.com/simonw/datasette/pull/1759))
-   Datasette now runs some SQL queries in parallel. This has limited impact on performance, see [this research issue](https://github.com/simonw/datasette/issues/1727) for details.
-   New `--nolock` option for ignoring file locks when opening read-only databases. ([#1744](https://github.com/simonw/datasette/issues/1744))
-   Spaces in the database names in URLs are now encoded as `+` rather than `~20`. ([#1701](https://github.com/simonw/datasette/issues/1701))
-   `<Binary: 2427344 bytes>` is now displayed as `<Binary: 2,427,344 bytes>` and is accompanied by tooltip showing ""2.3MB"". ([#1712](https://github.com/simonw/datasette/issues/1712))
-   The base Docker image used by `datasette publish cloudrun`, `datasette package` and the [official Datasette image](https://hub.docker.com/datasetteproject/datasette) has been upgraded to `3.10.6-slim-bullseye`. ([#1768](https://github.com/simonw/datasette/issues/1768))
-   Canned writable queries against immutable databases now show a warning message. ([#1728](https://github.com/simonw/datasette/issues/1728))
-   `datasette publish cloudrun` has a new `--timeout` option which can be used to increase the time limit applied by the Google Cloud build environment. Thanks, Tim Sherratt. ([#1717](https://github.com/simonw/datasette/pull/1717))
-   `datasette publish cloudrun` has new `--min-instances` and `--max-instances` options. ([#1779](https://github.com/simonw/datasette/issues/1779))

## Plugin hooks

-   New plugin hook: [handle_exception()](https://docs.datasette.io/en/stable/plugin_hooks.html#plugin-hook-handle-exception), for custom handling of exceptions caught by Datasette. ([#1770](https://github.com/simonw/datasette/issues/1770))
-   The [render_cell()](https://docs.datasette.io/en/stable/plugin_hooks.html#plugin-hook-render-cell) plugin hook is now also passed a `row` argument, representing the `sqlite3.Row` object that is being rendered. ([#1300](https://github.com/simonw/datasette/issues/1300))
-   The [configuration directory](https://docs.datasette.io/en/stable/settings.html#config-dir) is now stored in `datasette.config_dir`, making it available to plugins. Thanks, Chris Amico. ([#1766](https://github.com/simonw/datasette/pull/1766))

## Bug fixes

-   Don't show the facet option in the cog menu if faceting is not allowed. ([#1683](https://github.com/simonw/datasette/issues/1683))
-   `?_sort` and `?_sort_desc` now work if the column that is being sorted has been excluded from the query using `?_col=` or `?_nocol=`. ([#1773](https://github.com/simonw/datasette/issues/1773))
-   Fixed bug where `?_sort_desc` was duplicated in the URL every time the Apply button was clicked. ([#1738](https://github.com/simonw/datasette/issues/1738))

## Documentation

-   Examples in the documentation now include a copy-to-clipboard button. ([#1748](https://github.com/simonw/datasette/issues/1748))
-   Documentation now uses the [Furo](https://github.com/pradyunsg/furo) Sphinx theme. ([#1746](https://github.com/simonw/datasette/issues/1746))
-   Code examples in the documentation are now all formatted using Black. ([#1718](https://github.com/simonw/datasette/issues/1718))
-   `Request.fake()` method is now documented, see [Request object](https://docs.datasette.io/en/stable/internals.html#internals-request).
-   New documentation for plugin authors: [Registering a plugin for the duration of a test](https://docs.datasette.io/en/stable/testing_plugins.html#testing-plugins-register-in-test). ([#903](https://github.com/simonw/datasette/issues/903))",107914493,"{""url"": ""https://api.github.com/repos/simonw/datasette/releases/74385093/reactions"", ""total_count"": 2, ""+1"": 0, ""-1"": 0, ""laugh"": 0, ""hooray"": 0, ""confused"": 0, ""heart"": 2, ""rocket"": 0, ""eyes"": 0}"
https://github.com/simonw/datasette/releases/tag/0.62a1,72184309,RE_kwDOBm6k_c4ETXH1,0.62a1,main,0.62a1,0,9599,1,2022-07-18T01:06:37Z,2022-07-18T01:09:05Z,"- New plugin hook: [handle_exception()](https://docs.datasette.io/en/stable/plugin_hooks.html#plugin-hook-handle-exception), for custom handling of exceptions caught by Datasette. ([#1770](https://github.com/simonw/datasette/issues/1770))
- The [render_cell()](https://docs.datasette.io/en/stable/plugin_hooks.html#plugin-hook-render-cell) plugin hook is now also passed a `row` argument, representing the `sqlite3.Row` object that is being rendered. ([#1300](https://github.com/simonw/datasette/issues/1300))
- New `--nolock` option for ignoring file locks when opening read-only databases. ([#1744](https://github.com/simonw/datasette/issues/1744))
- Documentation now uses the [Furo](https://github.com/pradyunsg/furo) Sphinx theme. ([#1746](https://github.com/simonw/datasette/issues/1746))
- Datasette now has a [Discord community](https://discord.gg/ktd74dm5mw).
- Database file downloads now implement conditional GET using ETags. ([#1739](https://github.com/simonw/datasette/issues/1739))
- Examples in the documentation now include a copy-to-clipboard button. ([#1748](https://github.com/simonw/datasette/issues/1748))
- HTML for facet results and suggested results has been extracted out into new templates `_facet_results.html` and `_suggested_facets.html`. Thanks, M. Nasimul Haque. ([#1759](https://github.com/simonw/datasette/pull/1759))",107914493,
https://github.com/simonw/datasette/releases/tag/0.62a0,65847605,RE_kwDOBm6k_c4D7ME1,0.62a0,main,0.62a0,0,9599,1,2022-05-02T21:38:34Z,2022-05-02T21:39:52Z,"-   Datasette now runs some SQL queries in parallel. This has limited impact on performance, see [this research issue](https://github.com/simonw/datasette/issues/1727) for details.
-   Datasette should now be compatible with Pyodide. ([#1733](https://github.com/simonw/datasette/issues/1733))
-   `datasette publish cloudrun` has a new `--timeout` option which can be used to increase the time limit applied by the Google Cloud build environment. Thanks, Tim Sherratt. ([#1717](https://github.com/simonw/datasette/pull/1717))
-   Spaces in database names are now encoded as `+` rather than `~20`. ([#1701](https://github.com/simonw/datasette/issues/1701))
-   `<Binary: 2427344 bytes>` is now displayed as `<Binary: 2,427,344 bytes>` and is accompanied by tooltip showing ""2.3MB"". ([#1712](https://github.com/simonw/datasette/issues/1712))
-   Don't show the facet option in the cog menu if faceting is not allowed. ([#1683](https://github.com/simonw/datasette/issues/1683))
-   Code examples in the documentation are now all formatted using Black. ([#1718](https://github.com/simonw/datasette/issues/1718))
-   `Request.fake()` method is now documented, see [Request object](https://docs.datasette.io/en/latest/internals.html#internals-request).",107914493,
https://github.com/simonw/datasette/releases/tag/0.61.1,62620866,RE_kwDOBm6k_c4Du4TC,0.61.1,main,0.61.1,0,9599,0,2022-03-23T18:54:10Z,2022-03-23T20:31:09Z,- Fixed a bug where databases with a different route from their name (as used by the [datasette-hashed-urls plugin](https://datasette.io/plugins/datasette-hashed-urls)) returned errors when executing custom SQL queries. ([#1682](https://github.com/simonw/datasette/issues/1682)),107914493,
https://github.com/simonw/datasette/releases/tag/0.61,62608891,RE_kwDOBm6k_c4Du1X7,0.61,main,0.61,0,9599,0,2022-03-23T18:12:26Z,2022-03-23T18:14:36Z,"In preparation for Datasette 1.0, this release includes two potentially backwards-incompatible changes. Hashed URL mode has been moved to a separate plugin, and the way Datasette generates URLs to databases and tables with special characters in their name such as `/` and `.` has changed.

Datasette also now requires Python 3.7 or higher.

See also the [annotated release notes](https://simonwillison.net/2022/Mar/24/datasette-061/).

-   URLs within Datasette now use a different encoding scheme for tables or databases that include ""special"" characters outside of the range of `a-zA-Z0-9_-`. This scheme is explained here: [Tilde encoding](https://docs.datasette.io/en/stable/internals.html#internals-tilde-encoding). ([#1657](https://github.com/simonw/datasette/issues/1657))
-   Removed hashed URL mode from Datasette. The new `datasette-hashed-urls` plugin can be used to achieve the same result, see [datasette-hashed-urls](https://docs.datasette.io/en/stable/performance.html#performance-hashed-urls) for details. ([#1661](https://github.com/simonw/datasette/issues/1661))
-   Databases can now have a custom path within the Datasette instance that is independent of the database name, using the `db.route` property. ([#1668](https://github.com/simonw/datasette/issues/1668))
-   Datasette is now covered by a [Code of Conduct](https://github.com/simonw/datasette/blob/main/CODE_OF_CONDUCT.md). ([#1654](https://github.com/simonw/datasette/issues/1654))
-   Python 3.6 is no longer supported. ([#1577](https://github.com/simonw/datasette/issues/1577))
-   Tests now run against Python 3.11-dev. ([#1621](https://github.com/simonw/datasette/issues/1621))
-   New [datasette.ensure_permissions(actor, permissions)](https://docs.datasette.io/en/stable/internals.html#datasette-ensure-permissions) internal method for checking multiple permissions at once. ([#1675](https://github.com/simonw/datasette/issues/1675))
-   New [datasette.check_visibility(actor, action, resource=None)](https://docs.datasette.io/en/stable/internals.html#datasette-check-visibilty) internal method for checking if a user can see a resource that would otherwise be invisible to unauthenticated users. ([#1678](https://github.com/simonw/datasette/issues/1678))
-   Table and row HTML pages now include a `<link rel=""alternate"" type=""application/json+datasette"" href=""..."">` element and return a `Link: URL; rel=""alternate""; type=""application/json+datasette""` HTTP header pointing to the JSON version of those pages. ([#1533](https://github.com/simonw/datasette/issues/1533))
-   `Access-Control-Expose-Headers: Link` is now added to the CORS headers, allowing remote JavaScript to access that header.
-   Canned queries are now shown at the top of the database page, directly below the SQL editor. Previously they were shown at the bottom, below the list of tables. ([#1612](https://github.com/simonw/datasette/issues/1612))
-   Datasette now has a default favicon. ([#1603](https://github.com/simonw/datasette/issues/1603))
-   `sqlite_stat` tables are now hidden by default. ([#1587](https://github.com/simonw/datasette/issues/1587))
-   SpatiaLite tables `data_licenses`, `KNN` and `KNN2` are now hidden by default. ([#1601](https://github.com/simonw/datasette/issues/1601))
-   SQL query tracing mechanism now works for queries executed in `asyncio` sub-tasks, such as those created by `asyncio.gather()`. ([#1576](https://github.com/simonw/datasette/issues/1576))
-   [datasette.tracer](https://docs.datasette.io/en/stable/internals.html#internals-tracer) mechanism is now documented.
-   Common Datasette symbols can now be imported directly from the top-level `datasette` package, see [Import shortcuts](https://docs.datasette.io/en/stable/internals.html#internals-shortcuts). Those symbols are `Response`, `Forbidden`, `NotFound`, `hookimpl`, `actor_matches_allow`. ([#957](https://github.com/simonw/datasette/issues/957))
-   `/-/versions` page now returns additional details for libraries used by SpatiaLite. ([#1607](https://github.com/simonw/datasette/issues/1607))
-   Documentation now links to the [Datasette Tutorials](https://datasette.io/tutorials).
-   Datasette will now also look for SpatiaLite in `/opt/homebrew` - thanks, Dan Peterson. ([#1649](https://github.com/simonw/datasette/pull/1649))
-   Fixed bug where [custom pages](https://docs.datasette.io/en/stable/custom_templates.html#custom-pages) did not work on Windows. Thanks, Robert Christie. ([#1545](https://github.com/simonw/datasette/issues/1545))
-   Fixed error caused when a table had a column named `n`. ([#1228](https://github.com/simonw/datasette/issues/1228))",107914493,
https://github.com/simonw/datasette/releases/tag/0.61a0,62259800,RE_kwDOBm6k_c4DtgJY,0.61a0,main,0.61a0,0,9599,1,2022-03-20T01:14:40Z,2022-03-20T01:16:41Z,"-   Removed hashed URL mode from Datasette. The new `datasette-hashed-urls` plugin can be used to achieve the same result, see [datasette-hashed-urls](https://docs.datasette.io/en/latest/performance.html#performance-hashed-urls) for details. ([#1661](https://github.com/simonw/datasette/issues/1661))
-   Databases can now have a custom path within the Datasette instance that is indpendent of the database name, using the `db.route` property. ([#1668](https://github.com/simonw/datasette/issues/1668))
-   URLs within Datasette now use a different encoding scheme for tables or databases that include ""special"" characters outside of the range of `a-zA-Z0-9_-`. This scheme is explained here: [Tilde encoding](https://docs.datasette.io/en/latest/internals.html#internals-tilde-encoding). ([#1657](https://github.com/simonw/datasette/issues/1657))
-   Table and row HTML pages now include a `<link rel=""alternate"" type=""application/json+datasette"" href=""..."">` element and return a `Link: URL; rel=""alternate""; type=""application/json+datasette""` HTTP header pointing to the JSON version of those pages. ([#1533](https://github.com/simonw/datasette/issues/1533))
-   `Access-Control-Expose-Headers: Link` is now added to the CORS headers, allowing remote JavaScript to access that header.
-   Canned queries are now shown at the top of the database page, directly below the SQL editor. Previously they were shown at the bottom, below the list of tables. ([#1612](https://github.com/simonw/datasette/issues/1612))
-   Datasette now has a default favicon. ([#1603](https://github.com/simonw/datasette/issues/1603))
-   `sqlite_stat` tables are now hidden by default. ([#1587](https://github.com/simonw/datasette/issues/1587))
-   SpatiaLite tables `data_licenses`, `KNN` and `KNN2` are now hidden by default. ([#1601](https://github.com/simonw/datasette/issues/1601))
-   Python 3.6 is no longer supported. ([#1577](https://github.com/simonw/datasette/issues/1577))
-   Tests now run against Python 3.11-dev. ([#1621](https://github.com/simonw/datasette/issues/1621))
-   Fixed bug where [custom pages](https://docs.datasette.io/en/latest/custom_templates.html#custom-pages) did not work on Windows. Thanks, Robert Christie. ([#1545](https://github.com/simonw/datasette/issues/1545))
-   SQL query tracing mechanism now works for queries executed in `asyncio` sub-tasks, such as those created by `asyncio.gather()`. ([#1576](https://github.com/simonw/datasette/issues/1576))
-   [datasette.tracer](https://docs.datasette.io/en/latest/internals.html#internals-tracer) mechanism is now documented.
-   Common Datasette symbols can now be imported directly from the top-level `datasette` package, see [Import shortcuts](https://docs.datasette.io/en/latest/internals.html#internals-shortcuts). Those symbols are `Response`, `Forbidden`, `NotFound`, `hookimpl`, `actor_matches_allow`. ([#957](https://github.com/simonw/datasette/issues/957))
-   `/-/versions` page now returns additional details for libraries used by SpatiaLite. ([#1607](https://github.com/simonw/datasette/issues/1607))
-   Documentation now links to the [Datasette Tutorials](https://datasette.io/tutorials).
-   Datasette will now also look for SpatiaLite in `/opt/homebrew` - thanks, Dan Peterson. ([#1649](https://github.com/simonw/datasette/pull/1649))
-   Datasette is now covered by a [Code of Conduct](https://github.com/simonw/datasette/blob/main/CODE_OF_CONDUCT.md). ([#1654](https://github.com/simonw/datasette/issues/1654))",107914493,
https://github.com/simonw/datasette/releases/tag/0.60,57068381,RE_kwDOBm6k_c4DZstd,0.60,main,0.60,0,9599,0,2022-01-14T01:36:51Z,2022-01-14T01:41:28Z,"### Plugins and internals

-   New plugin hook: [filters_from_request(request, database, table, datasette)](https://docs.datasette.io/en/stable/plugin_hooks.html#plugin-hook-filters-from-request), which runs on the table page and can be used to support new custom query string parameters that modify the SQL query. ([#473](https://github.com/simonw/datasette/issues/473))
-   Added two additional methods for writing to the database: [await db.execute_write_script(sql, block=True)](https://docs.datasette.io/en/stable/internals.html#database-execute-write-script) and [await db.execute_write_many(sql, params_seq, block=True)](https://docs.datasette.io/en/stable/internals.html#database-execute-write-many). ([#1570](https://github.com/simonw/datasette/issues/1570))
-   The [db.execute_write()](https://docs.datasette.io/en/stable/internals.html#database-execute-write) internal method now defaults to blocking until the write operation has completed. Previously it defaulted to queuing the write and then continuing to run code while the write was in the queue. ([#1579](https://github.com/simonw/datasette/issues/1579))
-   Database write connections now execute the [prepare_connection(conn, database, datasette)](https://docs.datasette.io/en/stable/plugin_hooks.html#plugin-hook-prepare-connection) plugin hook. ([#1564](https://github.com/simonw/datasette/issues/1564))
-   The `Datasette()` constructor no longer requires the `files=` argument, and is now documented at [Datasette class](https://docs.datasette.io/en/stable/internals.html#internals-datasette). ([#1563](https://github.com/simonw/datasette/issues/1563))
-   The tracing feature now traces write queries, not just read queries. ([#1568](https://github.com/simonw/datasette/issues/1568))
-   The query string variables exposed by `request.args` will now include blank strings for arguments such as `foo` in `?foo=&bar=1` rather than ignoring those parameters entirely. ([#1551](https://github.com/simonw/datasette/issues/1551))

### Faceting

-   The number of unique values in a facet is now always displayed. Previously it was only displayed if the user specified `?_facet_size=max`. ([#1556](https://github.com/simonw/datasette/issues/1556))
-   Facets of type `date` or `array` can now be configured in `metadata.json`, see [Facets in metadata.json](https://docs.datasette.io/en/stable/facets.html#facets-metadata). Thanks, David Larlet. ([#1552](https://github.com/simonw/datasette/issues/1552))
-   New `?_nosuggest=1` parameter for table views, which disables facet suggestion. ([#1557](https://github.com/simonw/datasette/issues/1557))
-   Fixed bug where `?_facet_array=tags&_facet=tags` would only display one of the two selected facets. ([#625](https://github.com/simonw/datasette/issues/625))

### Other small fixes

-   Made several performance improvements to the database schema introspection code that runs when Datasette first starts up. ([#1555](https://github.com/simonw/datasette/issues/1555))
-   Label columns detected for foreign keys are now case-insensitive, so `Name` or `TITLE` will be detected in the same way as `name` or `title`. ([#1544](https://github.com/simonw/datasette/issues/1544))
-   Upgraded Pluggy dependency to 1.0. ([#1575](https://github.com/simonw/datasette/issues/1575))
-   Now using [Plausible analytics](https://plausible.io/) for the Datasette documentation.
-   `explain query plan` is now allowed with varying amounts of whitespace in the query. ([#1588](https://github.com/simonw/datasette/issues/1588))
-   New [CLI reference](https://docs.datasette.io/en/stable/cli-reference.html#cli-reference) page showing the output of `--help` for each of the `datasette` sub-commands. This lead to several small improvements to the help copy. ([#1594](https://github.com/simonw/datasette/issues/1594))
-   Fixed bug where writable canned queries could not be used with custom templates. ([#1547](https://github.com/simonw/datasette/issues/1547))
-   Improved fix for a bug where columns with a underscore prefix could result in unnecessary hidden form fields. ([#1527](https://github.com/simonw/datasette/issues/1527))",107914493,
https://github.com/simonw/datasette/releases/tag/0.60a1,55633923,RE_kwDOBm6k_c4DUOgD,0.60a1,main,0.60a1,0,9599,1,2021-12-19T22:08:10Z,2021-12-19T22:11:16Z,"-   Database write connections now execute the [prepare_connection(conn, database, datasette)](https://docs.datasette.io/en/latest/plugin_hooks.html#plugin-hook-prepare-connection) plugin hook. ([#1564](https://github.com/simonw/datasette/issues/1564))
-   The `Datasette()` constructor no longer requires the `files=` argument, and is now documented at [Datasette class](https://docs.datasette.io/en/latest/internals.html#internals-datasette). ([#1563](https://github.com/simonw/datasette/issues/1563))
-   The tracing feature now traces write queries, not just read queries. ([#1568](https://github.com/simonw/datasette/issues/1568))
-   Added two methods for writing to the database: [await db.execute_write_script(sql, block=False)](https://docs.datasette.io/en/latest/internals.html#database-execute-write-script) and [await db.execute_write_many(sql, params_seq, block=False)](https://docs.datasette.io/en/latest/internals.html#database-execute-write-many). ([#1570](https://github.com/simonw/datasette/issues/1570))
-   Made several performance improvements to the database schema introspection code that runs when Datasette first starts up. ([#1555](https://github.com/simonw/datasette/issues/1555))
-   Fixed bug where writable canned queries could not be used with custom templates. ([#1547](https://github.com/simonw/datasette/issues/1547))",107914493,
https://github.com/simonw/datasette/releases/tag/0.60a0,55569404,RE_kwDOBm6k_c4DT-v8,0.60a0,main,0.60a0,0,9599,1,2021-12-17T19:13:51Z,2021-12-17T19:15:38Z,"-   New plugin hook: [filters_from_request(request, database, table, datasette)](https://docs.datasette.io/en/latest/plugin_hooks.html#plugin-hook-filters-from-request), which runs on the table page and can be used to support new custom query string parameters that modify the SQL query. ([#473](https://github.com/simonw/datasette/issues/473))
-   The number of unique values in a facet is now always displayed. Previously it was only displayed if the user specified `?_facet_size=max`. ([#1556](https://github.com/simonw/datasette/issues/1556))
-   Fixed bug where `?_facet_array=tags&_facet=tags` would only display one of the two selected facets. ([#625](https://github.com/simonw/datasette/issues/625))
-   Facets of type `date` or `array` can now be configured in `metadata.json`, see [Facets in metadata.json](https://docs.datasette.io/en/latest/facets.html#facets-metadata). Thanks, David Larlet. ([#1552](https://github.com/simonw/datasette/issues/1552))
-   New `?_nosuggest=1` parameter for table views, which disables facet suggestion. ([#1557](https://github.com/simonw/datasette/issues/1557))
-   Label columns detected for foreign keys are now case-insensitive, so `Name` or `TITLE` will be detected in the same way as `name` or `title`. ([#1544](https://github.com/simonw/datasette/issues/1544))
-   The query string variables exposed by `request.args` will now include blank strings for arguments such as `foo` in `?foo=&bar=1` rather than ignoring those parameters entirely. ([#1551](https://github.com/simonw/datasette/issues/1551))",107914493,
https://github.com/simonw/datasette/releases/tag/0.59.4,54295399,RE_kwDOBm6k_c4DPHtn,0.59.4,main,0.59.4,0,9599,0,2021-11-30T06:45:37Z,2021-11-30T06:50:48Z,"-   Fixed bug where columns with a leading underscore could not be removed from the interactive filters list. ([#1527](https://github.com/simonw/datasette/issues/1527))
-   Fixed bug where columns with a leading underscore were not correctly linked to by the ""Links from other tables"" interface on the row page. ([#1525](https://github.com/simonw/datasette/issues/1525))
-   Upgraded dependencies `aiofiles`, `black` and `janus`.",107914493,
https://github.com/simonw/datasette/releases/tag/0.59.3,53781549,RE_kwDOBm6k_c4DNKQt,0.59.3,main,0.59.3,0,9599,0,2021-11-20T23:40:21Z,2021-11-20T23:41:33Z,"-   Fixed numerous bugs when running Datasette [behind a proxy](https://docs.datasette.io/en/stable/deploying.html#deploying-proxy) with a prefix URL path using the [base_url](https://docs.datasette.io/en/stable/settings.html#setting-base-url) setting. A live demo of this mode is now available at [datasette-apache-proxy-demo.datasette.io/prefix/](https://datasette-apache-proxy-demo.datasette.io/prefix/). ([#1519](https://github.com/simonw/datasette/issues/1519), [#838](https://github.com/simonw/datasette/issues/838))
-   `?column__arraycontains=` and `?column__arraynotcontains=` table parameters now also work against SQL views. ([#448](https://github.com/simonw/datasette/issues/448))
-   `?_facet_array=column` no longer returns incorrect counts if columns contain the same value more than once.",107914493,
https://github.com/simonw/datasette/releases/tag/0.59.2,53323406,RE_kwDOBm6k_c4DLaaO,0.59.2,main,0.59.2,0,9599,0,2021-11-14T05:37:40Z,2021-11-14T05:43:09Z,"- Column names with a leading underscore now work correctly when used as a facet. ([#1506](https://github.com/simonw/datasette/issues/1506))
- Applying `?_nocol=` to a column no longer removes that column from the filtering interface. ([#1503](https://github.com/simonw/datasette/issues/1503))
- Official Datasette Docker container now uses Debian Bullseye as the base image. ([#1497](https://github.com/simonw/datasette/issues/1497))
- Datasette is four years old today! Here's the [original release announcement](https://simonwillison.net/2017/Nov/13/datasette/) from 2017.",107914493,
https://github.com/simonw/datasette/releases/tag/0.59.1,51940513,RE_kwDOBm6k_c4DGIyh,0.59.1,main,0.59.1,0,9599,0,2021-10-24T22:29:56Z,2021-10-24T22:32:25Z,"-   Fix compatibility with Python 3.10. ([#1482](https://github.com/simonw/datasette/issues/1482))
-   Documentation on how to use [Named parameters](https://docs.datasette.io/en/stable/sql_queries.html#sql-parameters) with integer and floating point values. ([#1496](https://github.com/simonw/datasette/issues/1496))",107914493,"{""url"": ""https://api.github.com/repos/simonw/datasette/releases/51940513/reactions"", ""total_count"": 2, ""+1"": 2, ""-1"": 0, ""laugh"": 0, ""hooray"": 0, ""confused"": 0, ""heart"": 0, ""rocket"": 0, ""eyes"": 0}"
https://github.com/simonw/datasette/releases/tag/0.59,51387349,RE_kwDOBm6k_c4DEBvV,0.59,main,0.59,0,9599,0,2021-10-14T19:23:43Z,2021-10-14T19:31:56Z,"-   Columns can now have associated metadata descriptions in `metadata.json`, see [Column descriptions](https://docs.datasette.io/en/stable/metadata.html#metadata-column-descriptions). ([#942](https://github.com/simonw/datasette/issues/942))
-   New [register_commands()](https://docs.datasette.io/en/stable/plugin_hooks.html#plugin-hook-register-commands) plugin hook allows plugins to register additional Datasette CLI commands, e.g. `datasette mycommand file.db`. ([#1449](https://github.com/simonw/datasette/issues/1449))
-   Adding `?_facet_size=max` to a table page now shows the number of unique values in each facet. ([#1423](https://github.com/simonw/datasette/issues/1423))
-   Upgraded dependency [httpx 0.20](https://github.com/encode/httpx/releases/tag/0.20.0) - the undocumented `allow_redirects=` parameter to [datasette.client](https://docs.datasette.io/en/stable/internals.html#internals-datasette-client) is now `follow_redirects=`, and defaults to `False` where it previously defaulted to `True`. ([#1488](https://github.com/simonw/datasette/issues/1488))
-   The `--cors` option now causes Datasette to return the `Access-Control-Allow-Headers: Authorization` header, in addition to `Access-Control-Allow-Origin: *`. ([#1467](https://github.com/simonw/datasette/pull/1467))
-   Code that figures out which named parameters a SQL query takes in order to display form fields for them is no longer confused by strings that contain colon characters. ([#1421](https://github.com/simonw/datasette/issues/1421))
-   Renamed `--help-config` option to `--help-settings`. ([#1431](https://github.com/simonw/datasette/issues/1431))
-   `datasette.databases` property is now a documented API. ([#1443](https://github.com/simonw/datasette/issues/1443))
-   The `base.html` template now wraps everything other than the `<footer>` in a `<div class=""not-footer"">` element, to help with advanced CSS customization. ([#1446](https://github.com/simonw/datasette/issues/1446))
-   The [render_cell()](https://docs.datasette.io/en/stable/plugin_hooks.html#plugin-hook-render-cell) plugin hook can now return an awaitable function. This means the hook can execute SQL queries. ([#1425](https://github.com/simonw/datasette/issues/1425))
-   [register_routes(datasette)](https://docs.datasette.io/en/stable/plugin_hooks.html#plugin-register-routes) plugin hook now accepts an optional `datasette` argument. ([#1404](https://github.com/simonw/datasette/issues/1404))
-   New `hide_sql` canned query option for defaulting to hiding the SQL quey used by a canned query, see [Additional canned query options](https://docs.datasette.io/en/stable/sql_queries.html#canned-queries-options). ([#1422](https://github.com/simonw/datasette/issues/1422))
-   New `--cpu` option for [datasette publish cloudrun](https://docs.datasette.io/en/stable/publish.html#publish-cloud-run). ([#1420](https://github.com/simonw/datasette/issues/1420))
-   If [Rich](https://github.com/willmcgugan/rich) is installed in the same virtual environment as Datasette, it will be used to provide enhanced display of error tracebacks on the console. ([#1416](https://github.com/simonw/datasette/issues/1416))
-   `datasette.utils` [parse_metadata(content)](https://docs.datasette.io/en/stable/internals.html#internals-utils-parse-metadata) function, used by the new [datasette-remote-metadata plugin](https://datasette.io/plugins/datasette-remote-metadata), is now a documented API. ([#1405](https://github.com/simonw/datasette/issues/1405))
-   Fixed bug where `?_next=x&_sort=rowid` could throw an error. ([#1470](https://github.com/simonw/datasette/issues/1470))
-   Column cog menu no longer shows the option to facet by a column that is already selected by the default facets in metadata. ([#1469](https://github.com/simonw/datasette/issues/1469))",107914493,"{""url"": ""https://api.github.com/repos/simonw/datasette/releases/51387349/reactions"", ""total_count"": 1, ""+1"": 0, ""-1"": 0, ""laugh"": 0, ""hooray"": 1, ""confused"": 0, ""heart"": 0, ""rocket"": 0, ""eyes"": 0}"
https://github.com/simonw/datasette/releases/tag/0.59a2,48604143,MDc6UmVsZWFzZTQ4NjA0MTQz,0.59a2,main, 0.59a2,0,9599,1,2021-08-28T01:55:54Z,2021-08-28T01:57:38Z,"-   Columns can now have associated metadata descriptions in `metadata.json`, see [Column descriptions](https://docs.datasette.io/en/latest/metadata.html#metadata-column-descriptions). ([#942](https://github.com/simonw/datasette/issues/942))
-   New [register_commands()](https://docs.datasette.io/en/latest/plugin_hooks.html#plugin-hook-register-commands) plugin hook allows plugins to register additional Datasette CLI commands, e.g. `datasette mycommand file.db`. ([#1449](https://github.com/simonw/datasette/issues/1449))
-   Adding `?_facet_size=max` to a table page now shows the number of unique values in each facet. ([#1423](https://github.com/simonw/datasette/issues/1423))
-   Code that figures out which named parameters a SQL query takes in order to display form fields for them is no longer confused by strings that contain colon characters. ([#1421](https://github.com/simonw/datasette/issues/1421))
-   Renamed `--help-config` option to `--help-settings`. ([#1431](https://github.com/simonw/datasette/issues/1431))
-   `datasette.databases` property is now a documented API. ([#1443](https://github.com/simonw/datasette/issues/1443))
-   Datasette base template now wraps everything other than the `<footer>` in a `<div class=""not-footer"">` element, to help with advanced CSS customization. ([#1446](https://github.com/simonw/datasette/issues/1446))",107914493,
https://github.com/simonw/datasette/releases/tag/0.59a1,47507174,MDc6UmVsZWFzZTQ3NTA3MTc0,0.59a1,main,0.59a1,0,9599,1,2021-08-09T01:13:03Z,2021-08-09T01:14:06Z,-   The [render_cell()](https://docs.datasette.io/en/latest/plugin_hooks.html#plugin-hook-render-cell) plugin hook can now return an awaitable function. This means the hook can execute SQL queries. ([#1425](https://github.com/simonw/datasette/issues/1425)),107914493,"{""url"": ""https://api.github.com/repos/simonw/datasette/releases/47507174/reactions"", ""total_count"": 1, ""+1"": 0, ""-1"": 0, ""laugh"": 0, ""hooray"": 0, ""confused"": 0, ""heart"": 1, ""rocket"": 0, ""eyes"": 0}"
https://github.com/simonw/datasette/releases/tag/0.59a0,47461737,MDc6UmVsZWFzZTQ3NDYxNzM3,0.59a0,main,0.59a0,0,9599,1,2021-08-07T05:40:07Z,2021-08-07T05:42:25Z,"-   [register_routes(datasette)](https://docs.datasette.io/en/latest/plugin_hooks.html#plugin-register-routes) plugin hook now accepts an optional `datasette` argument. ([#1404](https://github.com/simonw/datasette/issues/1404))
-   New `hide_sql` canned query option for defaulting to hiding the SQL quey used by a canned query, see [Additional canned query options](https://docs.datasette.io/en/latest/sql_queries.html#canned-queries-options). ([#1422](https://github.com/simonw/datasette/issues/1422))
-   New `--cpu` option for [datasette publish cloudrun](https://docs.datasette.io/en/latest/publish.html#publish-cloud-run). ([#1420](https://github.com/simonw/datasette/issues/1420))
-   If [Rich](https://github.com/willmcgugan/rich) is installed in the same virtual environment as Datasette, it will be used to provide enhanced display of error tracebacks on the console. ([#1416](https://github.com/simonw/datasette/issues/1416))
-   `datasette.utils` [parse_metadata(content)](https://docs.datasette.io/en/latest/internals.html#internals-utils-parse-metadata) function, used by the new [datasette-remote-metadata plugin](https://datasette.io/plugins/datasette-remote-metadata), is now a documented API. ([#1405](https://github.com/simonw/datasette/issues/1405))",107914493,
https://github.com/simonw/datasette/releases/tag/0.58.1,46341814,MDc6UmVsZWFzZTQ2MzQxODE0,0.58.1,main,0.58.1,0,9599,0,2021-07-16T19:50:06Z,2021-07-16T19:51:15Z,-  Fix for an intermittent race condition caused by the `refresh_schemas()` internal function. ([#1231](https://github.com/simonw/datasette/issues/1231)),107914493,
https://github.com/simonw/datasette/releases/tag/0.58,46222036,MDc6UmVsZWFzZTQ2MjIyMDM2,0.58,main,0.58,0,9599,0,2021-07-15T00:33:04Z,2021-07-15T00:37:57Z,"- New `datasette --uds /tmp/datasette.sock` option for binding Datasette to a Unix domain socket, see [proxy documentation](https://docs.datasette.io/en/stable/deploying.html#deploying-proxy). ([#1388](https://github.com/simonw/datasette/issues/1388))
- `""searchmode"": ""raw""` table metadata option for defaulting a table to executing SQLite full-text search syntax without first escaping it, see [Advanced SQLite search queries](https://docs.datasette.io/en/stable/full_text_search.html#full-text-search-advanced-queries). ([#1389](https://github.com/simonw/datasette/issues/1389))
- New plugin hook: [get_metadata(datasette, key, database, table)](https://docs.datasette.io/en/stable/plugin_hooks.html#plugin-hook-get-metadata), for returning custom metadata for an instance, database or table. Thanks, Brandon Roberts! ([#1384](https://github.com/simonw/datasette/issues/1384))
- New plugin hook: [skip_csrf(datasette, scope)](https://docs.datasette.io/en/stable/plugin_hooks.html#plugin-hook-skip-csrf), for opting out of CSRF protection based on the incoming request. ([#1377](https://github.com/simonw/datasette/issues/1377))
- The [menu_links()](https://docs.datasette.io/en/stable/plugin_hooks.html#plugin-hook-menu-links), [table_actions()](https://docs.datasette.io/en/stable/plugin_hooks.html#plugin-hook-table-actions) and [database_actions()](https://docs.datasette.io/en/stable/plugin_hooks.html#plugin-hook-database-actions) plugin hooks all gained a new optional `request` argument providing access to the current request. ([#1371](https://github.com/simonw/datasette/issues/1371))
- Major performance improvement for Datasette faceting. ([#1394](https://github.com/simonw/datasette/issues/1394))
- Improved documentation for [Running Datasette behind a proxy](https://docs.datasette.io/en/stable/deploying.html#deploying-proxy) to recommend using `ProxyPreservehost On` with Apache. ([#1387](https://github.com/simonw/datasette/issues/1387))
- `POST` requests to endpoints that do not support that HTTP verb now return a 405 error.
- `db.path` can now be provided as a `pathlib.Path` object, useful when writing unit tests for plugins. Thanks, Chris Amico. ([#1365](https://github.com/simonw/datasette/issues/1365))",107914493,
https://github.com/simonw/datasette/releases/tag/0.58a1,45182156,MDc6UmVsZWFzZTQ1MTgyMTU2,0.58a1,main,0.58a1,0,9599,1,2021-06-24T16:24:59Z,2021-06-24T16:29:09Z,"-   New plugin hook: [skip_csrf(datasette, scope)](https://docs.datasette.io/en/latest//plugin_hooks.html#plugin-hook-skip-csrf), for opting out of CSRF protection based on the incoming request. ([#1377](https://github.com/simonw/datasette/issues/1377))
-   `POST` requests to endpoints that do not support that HTTP verb now return a 405 error.
-   `db.path` can now be provided as a `pathlib.Path` object, useful when writing unit tests for plugins. Thanks, Chris Amico. ([#1365](https://github.com/simonw/datasette/issues/1365))",107914493,"{""url"": ""https://api.github.com/repos/simonw/datasette/releases/45182156/reactions"", ""total_count"": 1, ""+1"": 1, ""-1"": 0, ""laugh"": 0, ""hooray"": 0, ""confused"": 0, ""heart"": 0, ""rocket"": 0, ""eyes"": 0}"
https://github.com/simonw/datasette/releases/tag/0.58a0,44388485,MDc6UmVsZWFzZTQ0Mzg4NDg1,0.58a0,main,0.58a0,0,9599,1,2021-06-10T04:51:14Z,2021-06-10T04:52:45Z,"-   The [menu_links()](https://docs.datasette.io/en/latest/plugin_hooks.html#plugin-hook-menu-links), [table_actions()](https://docs.datasette.io/en/latest/plugin_hooks.html#plugin-hook-table-actions) and [database_actions()](https://docs.datasette.io/en/latest/plugin_hooks.html#plugin-hook-database-actions) plugin hooks all gained a new optional `request` argument providing access to the current request. ([#1371](https://github.com/simonw/datasette/issues/1371))",107914493,
https://github.com/simonw/datasette/releases/tag/0.57.1,44292523,MDc6UmVsZWFzZTQ0MjkyNTIz,0.57.1,main,0.57.1,0,9599,0,2021-06-08T16:26:45Z,2021-06-08T16:28:31Z,"-   Fixed visual display glitch with global navigation menu. ([#1367](https://github.com/simonw/datasette/issues/1367))
-   No longer truncates the list of table columns displayed on the `/database` page. ([#1364](https://github.com/simonw/datasette/issues/1364))",107914493,"{""url"": ""https://api.github.com/repos/simonw/datasette/releases/44292523/reactions"", ""total_count"": 4, ""+1"": 0, ""-1"": 0, ""laugh"": 0, ""hooray"": 0, ""confused"": 0, ""heart"": 4, ""rocket"": 0, ""eyes"": 0}"
https://github.com/simonw/datasette/releases/tag/0.57,44155601,MDc6UmVsZWFzZTQ0MTU1NjAx,0.57,main,0.57,0,9599,0,2021-06-05T22:06:55Z,2021-06-05T22:11:18Z,"**Warning**: This release fixes a [reflected cross-site scripting](https://owasp.org/www-community/attacks/xss/#reflected-xss-attacks) security hole with the `?_trace=1` feature. You should upgrade to this version, or to Datasette 0.56.1, as soon as possible. ([#1360](https://github.com/simonw/datasette/issues/1360))

In addition to the security fix, this release includes `?_col=` and `?_nocol=` options for controlling which columns are displayed for a table, `?_facet_size=` for increasing the number of facet results returned, re-display of your SQL query should an error occur and numerous bug fixes.

### New features

-   If an error occurs while executing a user-provided SQL query, that query is now re-displayed in an editable form along with the error message. ([#619](https://github.com/simonw/datasette/issues/619))
-   New `?_col=` and `?_nocol=` parameters to show and hide columns in a table, plus an interface for hiding and showing columns in the column cog menu. ([#615](https://github.com/simonw/datasette/issues/615))
-   A new `?_facet_size=` parameter for customizing the number of facet results returned on a table or view page. ([#1332](https://github.com/simonw/datasette/issues/1332))
-   `?_facet_size=max` sets that to the maximum, which defaults to 1,000 and is controlled by the the [max_returned_rows](https://docs.datasette.io/en/stable/settings.html#setting-max-returned-rows) setting. If facet results are truncated the ... at the bottom of the facet list now links to this parameter. ([#1337](https://github.com/simonw/datasette/issues/1337))
-   `?_nofacet=1` option to disable all facet calculations on a page, used as a performance optimization for CSV exports and `?_shape=array/object`. ([#1349](https://github.com/simonw/datasette/issues/1349), [#263](https://github.com/simonw/datasette/issues/263))
-   `?_nocount=1` option to disable full query result counts. ([#1353](https://github.com/simonw/datasette/issues/1353))
-   `?_trace=1` debugging option is now controlled by the new [trace_debug](https://docs.datasette.io/en/stable/settings.html#setting-trace-debug) setting, which is turned off by default. ([#1359](https://github.com/simonw/datasette/issues/1359))

### Bug fixes and other improvements

-   [Custom pages](https://docs.datasette.io/en/stable/custom_templates.html#custom-pages) now work correctly when combined with the [base_url](https://docs.datasette.io/en/stable/settings.html#setting-base-url) setting. ([#1238](https://github.com/simonw/datasette/issues/1238))
-   Fixed intermittent error displaying the index page when the user did not have permission to access one of the tables. Thanks, Guy Freeman. ([#1305](https://github.com/simonw/datasette/issues/1305))
-   Columns with the name ""Link"" are no longer incorrectly displayed in bold. ([#1308](https://github.com/simonw/datasette/issues/1308))
-   Fixed error caused by tables with a single quote in their names. ([#1257](https://github.com/simonw/datasette/issues/1257))
-   Updated dependencies: `pytest-asyncio`, `Black`, `jinja2`, `aiofiles`, `click`, and `itsdangerous`.
-   The official Datasette Docker image now supports `apt-get install`. ([#1320](https://github.com/simonw/datasette/issues/1320))
-   The Heroku runtime used by `datasette publish heroku` is now `python-3.8.10`.",107914493,"{""url"": ""https://api.github.com/repos/simonw/datasette/releases/44155601/reactions"", ""total_count"": 1, ""+1"": 0, ""-1"": 0, ""laugh"": 0, ""hooray"": 1, ""confused"": 0, ""heart"": 0, ""rocket"": 0, ""eyes"": 0}"
https://github.com/simonw/datasette/releases/tag/0.57a1,43713686,MDc6UmVsZWFzZTQzNzEzNjg2,0.57a1,main,0.57a1,0,9599,1,2021-05-27T16:54:21Z,2021-05-27T16:58:41Z,"- Docker image now allows `apt-get install`. [#1320](https://github.com/simonw/datasette/issues/1320)
- `?_col=` and `?_nocol=` options to show and hide columns in a table, plus UI for doing this in the column cog menu.  [#615](https://github.com/simonw/datasette/issues/615)
- New `?_facet_size=max` option, linked to from the … on truncated facets. [#1337](https://github.com/simonw/datasette/issues/1337)
- Heroku runtime used by `datasette publish heroku` is now `python-3.8.10`.
- Multi-arch support for built Docker images using Buildx - thanks, [Blair Drummand](https://github.com/blairdrummond). [#1319](https://github.com/simonw/datasette/pull/1319)",107914493,
https://github.com/simonw/datasette/releases/tag/0.57a0,43419091,MDc6UmVsZWFzZTQzNDE5MDkx,0.57a0,main,0.57a0,0,9599,1,2021-05-23T00:45:54Z,2021-05-23T00:46:44Z,"Mainly dependency bumps, plus a new `?_facet_size=` argument.

-   Updated dependencies: pytest-asyncio, Black, jinja2, aiofiles, itsdangerous
-   Fixed bug where columns called ""Link"" were incorrectly displayed in bold. ([#1308](https://github.com/simonw/datasette/issues/1308))
-   New `?_facet_size=` argument for customizing the number of facet results returned on a page. ([#1332](https://github.com/simonw/datasette/issues/1332))",107914493,
https://github.com/simonw/datasette/releases/tag/0.56,40608711,MDc6UmVsZWFzZTQwNjA4NzEx,0.56,main,0.56,0,9599,0,2021-03-29T00:41:12Z,2021-03-29T00:43:36Z,"Documentation improvements, bug fixes and support for SpatiaLite 5.

-   The SQL editor can now be resized by dragging a handle. ([#1236](https://github.com/simonw/datasette/issues/1236))
-   Fixed a bug with JSON faceting and the `__arraycontains` filter caused by tables with spaces in their names. ([#1239](https://github.com/simonw/datasette/issues/1239))
-   Upgraded `httpx` dependency. ([#1005](https://github.com/simonw/datasette/issues/1005))
-   JSON faceting is now suggested even if a column contains blank strings. ([#1246](https://github.com/simonw/datasette/issues/1246))
-   New [datasette.add_memory_database()](https://docs.datasette.io/en/stable/internals.html#datasette-add-memory-database) method. ([#1247](https://github.com/simonw/datasette/issues/1247))
-   The [Response.asgi_send()](https://docs.datasette.io/en/stable/internals.html#internals-response-asgi-send) method is now documented. ([#1266](https://github.com/simonw/datasette/issues/1266))
-   The official Datasette Docker image now bundles SpatiaLite version 5. ([#1278](https://github.com/simonw/datasette/issues/1278))
-   Fixed a `no such table: pragma_database_list` bug when running Datasette against SQLite versions prior to SQLite 3.16.0. ([#1276](https://github.com/simonw/datasette/issues/1276))
-   HTML lists displayed in table cells are now styled correctly. Thanks, Bob Whitelock. ([#1141](https://github.com/simonw/datasette/issues/1141), [#1252](https://github.com/simonw/datasette/pull/1252))
-   Configuration directory mode now correctly serves immutable databases that are listed in `inspect-data.json`. Thanks Campbell Allen and Frankie Robertson. ([#1031](https://github.com/simonw/datasette/pull/1031), [#1229](https://github.com/simonw/datasette/pull/1229))",107914493,
https://github.com/simonw/datasette/releases/tag/0.55,38264801,MDc6UmVsZWFzZTM4MjY0ODAx,0.55,main,0.55,0,9599,0,2021-02-19T02:01:06Z,2021-02-19T02:02:29Z,"Support for cross-database SQL queries and built-in support for serving via HTTPS.

-   The new `--crossdb` command-line option causes Datasette to attach up to ten database files to the same `/_memory` database connection. This enables cross-database SQL queries, including the ability to use joins and unions to combine data from tables that exist in different database files. See [Cross-database queries](https://docs.datasette.io/en/stable/sql_queries.html#cross-database-queries) for details. ([#283](https://github.com/simonw/datasette/issues/283))
-   `--ssl-keyfile` and `--ssl-certfile` options can be used to specify a TLS certificate, allowing Datasette to serve traffic over `https://` without needing to run it behind a separate proxy. ([#1221](https://github.com/simonw/datasette/issues/1221))
-   The `/:memory:` page has been renamed (and redirected) to `/_memory` for consistency with the new `/_internal` database introduced in Datasette 0.54. ([#1205](https://github.com/simonw/datasette/issues/1205))
-   Added plugin testing documentation on [Using pdb for errors thrown inside Datasette](https://docs.datasette.io/en/stable//testing_plugins.html#testing-plugins-pdb). ([#1207](https://github.com/simonw/datasette/issues/1207))
-   The [official Datasette Docker image](https://hub.docker.com/r/datasetteproject/datasette) now uses Python 3.7.10, applying [the latest security fix](https://www.python.org/downloads/release/python-3710/) for that Python version. ([#1235](https://github.com/simonw/datasette/issues/1235))",107914493,
https://github.com/simonw/datasette/releases/tag/0.54,36871901,MDc6UmVsZWFzZTM2ODcxOTAx,0.54,main,0.54,0,9599,0,2021-01-25T17:35:06Z,2021-01-25T17:36:30Z,"The two big new features in this release are the `_internal` SQLite in-memory database storing details of all connected databases and tables, and support for JavaScript modules in plugins and additional scripts.

For additional commentary on this release, see [Datasette 0.54, the annotated release notes](https://simonwillison.net/2021/Jan/25/datasette/).

### The _internal database

As part of ongoing work to help Datasette handle much larger numbers of connected databases and tables (see [Datasette Library](https://github.com/simonw/datasette/issues/417)) Datasette now maintains an in-memory SQLite database with details of all of the attached databases, tables, columns, indexes and foreign keys. ([#1150](https://github.com/simonw/datasette/issues/1150))

This will support future improvements such as a searchable, paginated homepage of all available tables.

You can explore an example of this database by [signing in as root](https://latest.datasette.io/login-as-root) to the `latest.datasette.io` demo instance and then navigating to [latest.datasette.io/_internal](https://latest.datasette.io/_internal).

Plugins can use these tables to introspect attached data in an efficient way. Plugin authors should note that this is not yet considered a stable interface, so any plugins that use this may need to make changes prior to Datasette 1.0 if the `_internal` table schemas change.

### Named in-memory database support

As part of the work building the `_internal` database, Datasette now supports named in-memory databases that can be shared across multiple connections. This allows plugins to create in-memory databases which will persist data for the lifetime of the Datasette server process. ([#1151](https://github.com/simonw/datasette/issues/1151))

The new `memory_name=` parameter to the [Database class](https://docs.datasette.io/en/stable/internals.html#internals-database) can be used to create named, shared in-memory databases.

### JavaScript modules

[JavaScript modules](https://developer.mozilla.org/en-US/docs/Web/JavaScript/Guide/Modules) were introduced in ECMAScript 2015 and provide native browser support for the `import` and `export` keywords.

To use modules, JavaScript needs to be included in `<script>` tags with a `type=""module""` attribute.

Datasette now has the ability to output `<script type=""module"">` in places where you may wish to take advantage of modules. The `extra_js_urls` option described in [Custom CSS and JavaScript](https://docs.datasette.io/en/stable/custom_templates.html#customization-css-and-javascript) can now be used with modules, and module support is also available for the [extra_body_script()](https://docs.datasette.io/en/stable/plugin_hooks.html#plugin-hook-extra-body-script) plugin hook. ([#1186](https://github.com/simonw/datasette/issues/1186), [#1187](https://github.com/simonw/datasette/issues/1187))

[datasette-leaflet-freedraw](https://datasette.io/plugins/datasette-leaflet-freedraw) is the first example of a Datasette plugin that takes advantage of the new support for JavaScript modules. See [Drawing shapes on a map to query a SpatiaLite database](https://simonwillison.net/2021/Jan/24/drawing-shapes-spatialite/) for more on this plugin.

### Code formatting with Black and Prettier

Datasette adopted [Black](https://github.com/psf/black) for opinionated Python code formatting in June 2019. Datasette now also embraces [Prettier](https://prettier.io/) for JavaScript formatting, which like Black is enforced by tests in continuous integration. Instructions for using these two tools can be found in the new section on [Code formatting](https://docs.datasette.io/en/stable/contributing.html#contributing-formatting) in the contributors documentation. ([#1167](https://github.com/simonw/datasette/issues/1167))

### Other changes

-   Datasette can now open multiple database files with the same name, e.g. if you run `datasette path/to/one.db path/to/other/one.db`. ([#509](https://github.com/simonw/datasette/issues/509))
-   `datasette publish cloudrun` now sets `force_https_urls` for every deployment, fixing some incorrect `http://` links. ([#1178](https://github.com/simonw/datasette/issues/1178))
-   Fixed a bug in the example nginx configuration in [Running Datasette behind a proxy](https://docs.datasette.io/en/stable/deploying.html#deploying-proxy). ([#1091](https://github.com/simonw/datasette/issues/1091))
-   The [Datasette Ecosystem](https://docs.datasette.io/en/stable/ecosystem.html#ecosystem) documentation page has been reduced in size in favour of the `datasette.io` [tools](https://datasette.io/tools) and [plugins](https://datasette.io/plugins) directories. ([#1182](https://github.com/simonw/datasette/issues/1182))
-   The request object now provides a `request.full_path` property, which returns the path including any query string. ([#1184](https://github.com/simonw/datasette/issues/1184))
-   Better error message for disallowed `PRAGMA` clauses in SQL queries. ([#1185](https://github.com/simonw/datasette/issues/1185))
-   `datasette publish heroku` now deploys using `python-3.8.7`.
-   New plugin testing documentation on [Testing outbound HTTP calls with pytest-httpx](https://docs.datasette.io/en/stable/testing_plugins.html#testing-plugins-pytest-httpx). ([#1198](https://github.com/simonw/datasette/issues/1198))
-   All `?_*` query string parameters passed to the table page are now persisted in hidden form fields, so parameters such as `?_size=10` will be correctly passed to the next page when query filters are changed. ([#1194](https://github.com/simonw/datasette/issues/1194))
-   Fixed a bug loading a database file called `test-database (1).sqlite`. ([#1181](https://github.com/simonw/datasette/issues/1181))",107914493,
https://github.com/simonw/datasette/releases/tag/0.54a0,36623336,MDc6UmVsZWFzZTM2NjIzMzM2,0.54a0,main,0.54a0,0,9599,1,2021-01-19T20:50:12Z,2021-01-19T20:51:13Z,"**Alpha release**. Release notes in progress.

-   Improved support for named in-memory databases. ([#1151](https://github.com/simonw/datasette/issues/1151))
-   New `_internal` in-memory database tracking attached databases, tables and columns. ([#1150](https://github.com/simonw/datasette/issues/1150))
-   Support for JavaScript modules. ([#1186](https://github.com/simonw/datasette/issues/1186), [#1187](https://github.com/simonw/datasette/issues/1187))",107914493,
https://github.com/simonw/datasette/releases/tag/0.53,35131848,MDc6UmVsZWFzZTM1MTMxODQ4,0.53,main,0.53,0,9599,0,2020-12-11T01:44:36Z,2020-12-11T01:46:44Z,"Datasette has an official project website now, at <https://datasette.io/>. This release mainly updates the documentation to reflect the new site.

-   New `?column__arraynotcontains=` table filter. ([#1132](https://github.com/simonw/datasette/issues/1132))
-   `datasette serve` has a new `--create` option, which will create blank database files if they do not already exist rather than exiting with an error. ([#1135](https://github.com/simonw/datasette/issues/1135))
-   New `?_header=off` option for CSV export which omits the CSV header row, [documented here](https://docs.datasette.io/en/stable/csv_export.html#csv-export-url-parameters). ([#1133](https://github.com/simonw/datasette/issues/1133))
-   ""Powered by Datasette"" link in the footer now links to <https://datasette.io/>. ([#1138](https://github.com/simonw/datasette/issues/1138))
-   Project news no longer lives in the README - it can now be found at <https://datasette.io/news>. ([#1137](https://github.com/simonw/datasette/issues/1137))",107914493,
https://github.com/simonw/datasette/releases/tag/0.52.4,34882011,MDc6UmVsZWFzZTM0ODgyMDEx,0.52.4,main,0.52.4,0,9599,0,2020-12-05T19:42:42Z,2020-12-05T19:42:57Z,"-   Show [pysqlite3](https://github.com/coleifer/pysqlite3) version on `/-/versions`, if installed. ([#1125](https://github.com/simonw/datasette/issues/1125))
-   Errors output by Datasette (e.g. for invalid SQL queries) now go to `stderr`, not `stdout`. ([#1131](https://github.com/simonw/datasette/issues/1131))
-   Fix for a startup error on windows caused by unnecessary `from os import EX_CANTCREAT` - thanks, Abdussamet Koçak. ([#1094](https://github.com/simonw/datasette/issues/1094))",107914493,
https://github.com/simonw/datasette/releases/tag/0.52.3,34782337,MDc6UmVsZWFzZTM0NzgyMzM3,0.52.3,main,0.52.3,0,9599,0,2020-12-03T19:07:05Z,2020-12-03T19:08:29Z,- Fixed bug where static assets would 404 for Datasette installed on ARM Amazon Linux. ([#1124](https://github.com/simonw/datasette/issues/1124>)),107914493,
https://github.com/simonw/datasette/releases/tag/0.52.2,34725716,MDc6UmVsZWFzZTM0NzI1NzE2,0.52.2,main,0.52.2,0,9599,0,2020-12-03T00:57:40Z,2020-12-03T00:58:43Z,"-   Generated columns from SQLite 3.31.0 or higher are now correctly displayed. ([#1116](https://github.com/simonw/datasette/issues/1116))
-   Error message if you attempt to open a SpatiaLite database now suggests using `--load-extension=spatialite` if it detects that the extension is available in a common location. ([#1115](https://github.com/simonw/datasette/issues/1115))
-   `OPTIONS` requests against the `/database` page no longer raise a 500 error. ([#1100](https://github.com/simonw/datasette/issues/1100))
-   Databases larger than 32MB that are published to Cloud Run can now be downloaded. ([#749](https://github.com/simonw/datasette/issues/749))
-   Fix for misaligned cog icon on table and database pages. Thanks, Abdussamet Koçak. ([#1121](https://github.com/simonw/datasette/issues/1121))",107914493,
https://github.com/simonw/datasette/releases/tag/0.52.1,34551688,MDc6UmVsZWFzZTM0NTUxNjg4,0.52.1,main,0.52.1,0,9599,0,2020-11-29T19:38:29Z,2020-11-29T19:39:52Z,"-   Documentation on [Testing plugins](https://docs.datasette.io/en/stable/testing_plugins.html#testing-plugins) now recommends using [datasette.client](https://docs.datasette.io/en/stable/internals.html#internals-datasette-client). ([#1102](https://github.com/simonw/datasette/issues/1102))
-   Fix bug where compound foreign keys produced broken links. ([#1098](https://github.com/simonw/datasette/issues/1098))
-   `datasette --load-module=spatialite` now also checks for `/usr/local/lib/mod_spatialite.so`. Thanks, Dan Peterson. ([#1114](https://github.com/simonw/datasette/issues/1114))",107914493,
https://github.com/simonw/datasette/releases/tag/0.52,34539374,MDc6UmVsZWFzZTM0NTM5Mzc0,0.52,main,0.52,0,9599,0,2020-11-28T23:54:35Z,2020-11-28T23:57:12Z,"This release includes a number of changes relating to an internal rebranding effort: Datasette's **configuration** mechanism (things like `datasette --config default_page_size:10`) has been renamed to **settings**.

-   New `--setting default_page_size 10` option as a replacement for `--config default_page_size:10` (note the lack of a colon). The `--config` option is deprecated but will continue working until Datasette 1.0. ([#992](https://github.com/simonw/datasette/issues/992))
-   The `/-/config` introspection page is now `/-/settings`, and the previous page redirects to the new one. ([#1103](https://github.com/simonw/datasette/issues/1103))
-   The `config.json` file in [Configuration directory mode](https://docs.datasette.io/en/stable/settings.html#config-dir) is now called `settings.json`. ([#1104](https://github.com/simonw/datasette/issues/1104))
-   The undocumented `datasette.config()` internal method has been replaced by a documented [.setting(key)](https://docs.datasette.io/en/stable/internals.html#datasette-setting) method. ([#1107](https://github.com/simonw/datasette/issues/1107))

Also in this release:

-   New plugin hook: [database_actions(datasette, actor, database)](https://docs.datasette.io/en/stable/plugin_hooks.html#plugin-hook-database-actions), which adds menu items to a new cog menu shown at the top of the database page. ([#1077](https://github.com/simonw/datasette/issues/1077))
-   `datasette publish cloudrun` has a new `--apt-get-install` option that can be used to install additional Ubuntu packages as part of the deployment. This is useful for deploying the new [datasette-ripgrep plugin](https://github.com/simonw/datasette-ripgrep). ([#1110](https://github.com/simonw/datasette/issues/1110))
-   Swept the documentation to remove words that minimize involved difficulty. ([#1089](https://github.com/simonw/datasette/issues/1089))

And some bug fixes:

-   Foreign keys linking to rows with blank label columns now display as a hyphen, allowing those links to be clicked. ([#1086](https://github.com/simonw/datasette/issues/1086))
-   Fixed bug where row pages could sometimes 500 if the underlying queries exceeded a time limit. ([#1088](https://github.com/simonw/datasette/issues/1088))
-   Fixed a bug where the table action menu could appear partially obscured by the edge of the page. ([#1084](https://github.com/simonw/datasette/issues/1084))",107914493,
https://github.com/simonw/datasette/releases/tag/0.51.1,33314301,MDc6UmVsZWFzZTMzMzE0MzAx,0.51.1,main,0.51.1,0,9599,0,2020-11-01T03:33:47Z,2020-11-01T03:34:36Z,- Improvements to the new [Binary data](https://docs.datasette.io/en/stable/binary_data.html#binary) documentation page.,107914493,
https://github.com/simonw/datasette/releases/tag/0.51,33311677,MDc6UmVsZWFzZTMzMzExNjc3,0.51,main,0.51,0,9599,0,2020-10-31T22:24:54Z,2020-10-31T22:29:33Z,"A new visual design, plugin hooks for adding navigation options, better handling of binary data, URL building utility methods and better support for running Datasette behind a proxy.

### New visual design

Datasette is no longer white and grey with blue and purple links! [Natalie Downe](https://twitter.com/natbat) has been working on a visual refresh, the first iteration of which is included in this release. ([#1056](https://github.com/simonw/datasette/pull/1056))

![datasette-0 51](https://user-images.githubusercontent.com/9599/97791267-d9011e80-1b8d-11eb-9b1b-42908266f36f.png)

### Plugins can now add links within Datasette

A number of existing Datasette plugins add new pages to the Datasette interface, providig tools for things like [uploading CSVs](https://github.com/simonw/datasette-upload-csvs), [editing table schemas](https://github.com/simonw/datasette-edit-schema) or [configuring full-text search](https://github.com/simonw/datasette-configure-fts).

Plugins like this can now link to themselves from other parts of Datasette interface. The [menu_links(datasette, actor)](https://docs.datasette.io/en/stable/plugin_hooks.html#plugin-hook-menu-links) hook ([#1064](https://github.com/simonw/datasette/issues/1064)) lets plugins add links to Datasette's new top-right application menu, and the [table_actions(datasette, actor, database, table)](https://docs.datasette.io/en/stable/plugin_hooks.html#plugin-hook-table-actions) hook ([#1066](https://github.com/simonw/datasette/issues/1066)) adds links to a new ""table actions"" menu on the table page.

The demo at [latest.datasette.io](https://latest.datasette.io/) now includes some example plugins. To see the new table actions menu first [sign into that demo as root](https://latest.datasette.io/login-as-root) and then visit the [facetable](https://latest.datasette.io/fixtures/facetable) table to see the new cog icon menu at the top of the page.

### Binary data

SQLite tables can contain binary data in `BLOB` columns. Datasette now provides links for users to download this data directly from Datasette, and uses those links to make binary data available from CSV exports. See [Binary data](https://docs.datasette.io/en/stable/binary_data.html#binary) for more details. ([#1036](https://github.com/simonw/datasette/issues/1036) and [#1034](https://github.com/simonw/datasette/issues/1034)).

### URL building

The new [datasette.urls](https://docs.datasette.io/en/stable/internals.html#internals-datasette-urls) family of methods can be used to generate URLs to key pages within the Datasette interface, both within custom templates and Datasette plugins. See [Building URLs within plugins](https://docs.datasette.io/en/stable/writing_plugins.html#writing-plugins-building-urls) for more details. ([#904](https://github.com/simonw/datasette/issues/904))

### Running Datasette behind a proxy

The [base_url](https://docs.datasette.io/en/stable/config.html#config-base-url) configuration option is designed to help run Datasette on a specific path behind a proxy - for example if you want to run an instance of Datasette at `/my-datasette/` within your existing site's URL hierarchy, proxied behind nginx or Apache.

Support for this configuration option has been greatly improved ([#1023](https://github.com/simonw/datasette/issues/1023)), and guidelines for using it are now available in a new documentation section on [Running Datasette behind a proxy](https://docs.datasette.io/en/stable/deploying.html#deploying-proxy). ([#1027](https://github.com/simonw/datasette/issues/1027))

### Smaller changes

- Wide tables shown within Datasette now scroll horizontally ([#998](https://github.com/simonw/datasette/issues/998)). This is achieved using a new `<div class=""table-wrapper"">` element which may impact the implementation of some plugins (for example [this change to datasette-cluster-map](https://github.com/simonw/datasette-cluster-map/commit/fcb4abbe7df9071c5ab57defd39147de7145b34e)).
- New [debug-menu](https://docs.datasette.io/en/stable/authentication.html#permissions-debug-menu) permission. ([#1068](https://github.com/simonw/datasette/issues/1068))
- Removed `--debug` option, which didn't do anything. ([#814](https://github.com/simonw/datasette/issues/814))
- `Link:` HTTP header pagination. ([#1014](https://github.com/simonw/datasette/issues/1014))
- `x` button for clearing filters. ([#1016](https://github.com/simonw/datasette/issues/1016))
- Edit SQL button on canned queries, ([#1019](https://github.com/simonw/datasette/issues/1019))
- `--load-extension=spatialite` shortcut. ([#1028](https://github.com/simonw/datasette/issues/1028))
- scale-in animation for column action menu. ([#1039](https://github.com/simonw/datasette/issues/1039))
- Option to pass a list of templates to `.render_template()` is now documented. ([#1045](https://github.com/simonw/datasette/issues/1045))
- New `datasette.urls.static_plugins()` method. ([#1033](https://github.com/simonw/datasette/issues/1033))
- `datasette -o` option now opens the most relevant page. ([#976](https://github.com/simonw/datasette/issues/976))
- `datasette --cors` option now enables access to `/database.db` downloads. ([#1057](https://github.com/simonw/datasette/issues/1057))
- Database file downloads now implement cascading permissions, so you can download a database if you have `view-database-download` permission even if you do not have permission to access the Datasette instance. ([#1058](https://github.com/simonw/datasette/issues/1058))
- New documentation on [Designing URLs for your plugin](https://docs.datasette.io/en/stable/writing_plugins.html#writing-plugins-designing-urls). ([#1053](https://github.com/simonw/datasette/issues/1053))",107914493,
https://github.com/simonw/datasette/releases/tag/0.51a2,33284522,MDc6UmVsZWFzZTMzMjg0NTIy,0.51a2,main,0.51a2,0,9599,1,2020-10-30T17:56:02Z,2020-10-30T17:57:53Z,"-   New [load_template(template, request, datasette)](https://docs.datasette.io/en/latest/plugin_hooks.html#plugin-hook-load-template) plugin hook. ([#1042](https://github.com/simonw/datasette/issues/1042))
-   New [debug-menu](https://docs.datasette.io/en/latest/authentication.html#permissions-debug-menu) permission. ([#1068](https://github.com/simonw/datasette/issues/1068))",107914493,
https://github.com/simonw/datasette/releases/tag/0.51a1,33253780,MDc6UmVsZWFzZTMzMjUzNzgw,0.51a1,main,0.51a1,0,9599,1,2020-10-30T05:35:23Z,2020-10-30T05:37:34Z,"- New colour scheme and improved visual design, courtesy of Natalie Downe. ([#1056](https://github.com/simonw/datasette/pull/1056))
- scale-in animation for column action menu. ([#1039](https://github.com/simonw/datasette/issues/1039))
- Wide tables now scroll horizontally. ([#998](https://github.com/simonw/datasette/issues/998))
- Option to pass a list of templates to `.render_template()` is now documented. ([#1045](https://github.com/simonw/datasette/issues/1045))
- New `datasette.urls.static_plugins()` method. ([#1033](https://github.com/simonw/datasette/issues/1033))
- `BLOB` column values can now be downloaded directly from the Datasette UI. ([#1036](https://github.com/simonw/datasette/issues/1036))
- `.csv` exports now link to direct `BLOB` downloads. ([#1034](https://github.com/simonw/datasette/issues/1034))
- `datasette -o` option now opens the most relevant page. ([#976](https://github.com/simonw/datasette/issues/976))
- `datasette --cors` option now enables access to `/database.db` downloads. ([#1057](https://github.com/simonw/datasette/issues/1057))
- Database file downloads now implement cascading permissions, so you can download a database if you have `view-database-download` permission even if you do not have permission to access the Datasette instance. ([#1058](https://github.com/simonw/datasette/issues/1058))
- New documentation on [Designing URLs for your plugin](https://docs.datasette.io/en/latest/writing_plugins.html#writing-plugins-designing-urls). ([#1053](https://github.com/simonw/datasette/issues/1053))
- New navigation menu plus a [menu_links(datasette, actor)](https://docs.datasette.io/en/latest/plugin_hooks.html#plugin-hook-menu-links) plugin hook to customize it. ([#1064](https://github.com/simonw/datasette/issues/1064))
- [table_actions(datasette, actor, database, table)](https://docs.datasette.io/en/latest/plugin_hooks.html#plugin-hook-table-actions) plugin hook for the new table actions menu. ([#1066](https://github.com/simonw/datasette/issues/1066))",107914493,
https://github.com/simonw/datasette/releases/tag/0.51a0,32791115,MDc6UmVsZWFzZTMyNzkxMTE1,0.51a0,main,0.51a0,0,9599,1,2020-10-20T05:31:14Z,2020-10-20T05:33:01Z,"-   Fixed a bunch of issues relating to the [base_url](https://docs.datasette.io/en/latest/config.html#config-base-url) setting. ([#1023](https://github.com/simonw/datasette/issues/1023))
-   New `datasette.urls` URL builder for plugins, see [Building URLs within plugins](https://docs.datasette.io/en/latest/writing_plugins.html#writing-plugins-building-urls). ([#904](https://github.com/simonw/datasette/issues/904))
-   Removed `--debug` option, which didn't do anything. ([#814](https://github.com/simonw/datasette/issues/814))
-   `Link:` HTTP header pagination. ([#1014](https://github.com/simonw/datasette/issues/1014))
-   `x` button for clearing filters. ([#1016](https://github.com/simonw/datasette/issues/1016))
-   Edit SQL button on canned queries, ([#1019](https://github.com/simonw/datasette/issues/1019))
-   `--load-extension=spatialite` shortcut. ([#1028](https://github.com/simonw/datasette/issues/1028))",107914493,
https://github.com/simonw/datasette/releases/tag/0.50.2,32397338,MDc6UmVsZWFzZTMyMzk3MzM4,0.50.2,main,0.50.2,0,9599,0,2020-10-10T03:53:47Z,2020-10-10T03:59:18Z,"* Fixed another bug introduced in 0.50 where column header links on the table page were broken. (#1011)
",107914493,
https://github.com/simonw/datasette/releases/tag/0.50.1,32395303,MDc6UmVsZWFzZTMyMzk1MzAz,0.50.1,main,0.50.1,0,9599,0,2020-10-10T00:41:35Z,2020-10-10T00:44:23Z,"- Fixed a bug introduced in 0.50 where the export as JSON/CSV links on the table, row and query pages were broken. (#1010)
",107914493,
https://github.com/simonw/datasette/releases/tag/0.50,32384200,MDc6UmVsZWFzZTMyMzg0MjAw,0.50,main,0.50,0,9599,0,2020-10-09T17:57:55Z,2020-10-09T17:58:27Z,"The key new feature in this release is the **column actions** menu on the table page ([#891](https://github.com/simonw/datasette/issues/891)). This can be used to sort a column in ascending or descending order, facet data by that column or filter the table to just rows that have a value for that column.

Plugin authors can use the new [datasette.client](https://docs.datasette.io/en/stable/internals.html#internals-datasette-client) object to make internal HTTP requests from their plugins, allowing them to make use of Datasette's JSON API. ([#943](https://github.com/simonw/datasette/issues/943))

New [Deploying Datasette](https://docs.datasette.io/en/stable/deploying.html#deploying) documentation with guides for deploying Datasette on a Linux server [using systemd](https://docs.datasette.io/en/stable/deploying.html#deploying-systemd) or to hosting providers [that support buildpacks](https://docs.datasette.io/en/stable/deploying.html#deploying-buildpacks). ([#514](https://github.com/simonw/datasette/issues/514), [#997](https://github.com/simonw/datasette/issues/997))

Other improvements in this release:

-   [Publishing to Google Cloud Run](https://docs.datasette.io/en/stable/publish.html#publish-cloud-run) documentation now covers Google Cloud SDK options. Thanks, Geoffrey Hing. ([#995](https://github.com/simonw/datasette/pull/995))
-   New `datasette -o` option which opens your browser as soon as Datasette starts up. ([#970](https://github.com/simonw/datasette/issues/970))
-   Datasette now sets `sqlite3.enable_callback_tracebacks(True)` so that errors in custom SQL functions will display tracebacks. ([#891](https://github.com/simonw/datasette/issues/891))
-   Fixed two rendering bugs with column headers in portrait mobile view. ([#978](https://github.com/simonw/datasette/issues/978), [#980](https://github.com/simonw/datasette/issues/980))
-   New `db.table_column_details(table)` introspection method for retrieving full details of the columns in a specific table, see [Database introspection](https://docs.datasette.io/en/stable/internals.html#internals-database-introspection).
-   Fixed a routing bug with custom page wildcard templates. ([#996](https://github.com/simonw/datasette/issues/996))
-   `datasette publish heroku` now deploys using Python 3.8.6.
-   New `datasette publish heroku --tar=` option. ([#969](https://github.com/simonw/datasette/issues/969))
-   `OPTIONS` requests against HTML pages no longer return a 500 error. ([#1001](https://github.com/simonw/datasette/issues/1001))
-   Datasette now supports Python 3.9.",107914493,
https://github.com/simonw/datasette/releases/tag/0.50a1,32238807,MDc6UmVsZWFzZTMyMjM4ODA3,0.50a1,main,0.50a1,0,9599,1,2020-10-06T20:50:54Z,2020-10-06T20:52:49Z,"-   Column action menu now shows the column type. ([#993](https://github.com/simonw/datasette/issues/993))
-   Column action sort links now correctly link to the first page of sorted results. ([#989](https://github.com/simonw/datasette/issues/989))
-   [Publishing to Google Cloud Run](https://docs.datasette.io/en/latest/publish.html#publish-cloud-run) documentation now covers Google Cloud SDK options. Thanks, Geoffrey Hing. ([#995](https://github.com/simonw/datasette/pull/995))",107914493,
https://github.com/simonw/datasette/releases/tag/0.50a0,32072114,MDc6UmVsZWFzZTMyMDcyMTE0,0.50a0,main,0.50a0,0,9599,1,2020-10-01T23:35:04Z,2020-10-01T23:35:54Z,"-   New column action menu - table columns now show a cog icon which provides a contextual menu for that column. ([#981](https://github.com/simonw/datasette/issues/981))
-   New `datasette -o` option which opens your browser as soon as Datasette starts up. ([#970](https://github.com/simonw/datasette/issues/970)
-   `sqlite3.enable_callback_tracebacks(True)` so errors in custom SQL functions will now display tracebacks. ([#891](https://github.com/simonw/datasette/issues/891))
-   Fixed two rendering bugs with column headers in portrait mobile view. ([#978](https://github.com/simonw/datasette/issues/978), [#980](https://github.com/simonw/datasette/issues/980))",107914493,
https://github.com/simonw/datasette/releases/tag/0.49.1,31354944,MDc6UmVsZWFzZTMxMzU0OTQ0,0.49.1,main,0.49.1,0,9599,0,2020-09-15T20:20:15Z,2020-09-15T20:21:16Z,"- Fixed a bug with writable canned queries that use magic parameters but accept no non-magic arguments. (#967)
",107914493,
https://github.com/simonw/datasette/releases/tag/0.49,31288240,MDc6UmVsZWFzZTMxMjg4MjQw,0.49,main,0.49,0,9599,0,2020-09-14T21:38:24Z,2020-09-14T21:40:11Z,"-   Writable canned queries now expose a JSON API, see [JSON API for writable canned queries](https://docs.datasette.io/en/stable/sql_queries.html#canned-queries-json-api). ([#880](https://github.com/simonw/datasette/issues/880))
-   New mechanism for defining page templates with custom path parameters - a template file called `pages/about/{slug}.html` will be used to render any requests to `/about/something`. See [Path parameters for pages](https://docs.datasette.io/en/stable/custom_templates.html#custom-pages-parameters). ([#944](https://github.com/simonw/datasette/issues/944))
-   `register_output_renderer()` render functions can now return a `Response`. ([#953](https://github.com/simonw/datasette/issues/953))
-   New `--upgrade` option for `datasette install`. ([#945](https://github.com/simonw/datasette/issues/945))
-   New `datasette --pdb` option. ([#962](https://github.com/simonw/datasette/issues/962))
-   `datasette --get` exit code now reflects the internal HTTP status code. ([#947](https://github.com/simonw/datasette/issues/947))
-   New `raise_404()` template function for returning 404 errors. ([#964](https://github.com/simonw/datasette/issues/964))
-   `datasette publish heroku` now deploys using Python 3.8.5
-   Upgraded [CodeMirror](https://codemirror.net/) to 5.57.0. ([#948](https://github.com/simonw/datasette/issues/948))
-   Upgraded code style to Black 20.8b1. ([#958](https://github.com/simonw/datasette/issues/958))
-   Fixed bug where selected facets were not correctly persisted in hidden form fields on the table page. ([#963](https://github.com/simonw/datasette/issues/963))
-   Renamed the default error template from `500.html` to `error.html`.
-   Custom error pages are now documented, see [Custom error pages](https://docs.datasette.io/en/stable/custom_templates.html#custom-pages-errors). ([#965](https://github.com/simonw/datasette/issues/965))",107914493,
https://github.com/simonw/datasette/releases/tag/0.49a1,31227999,MDc6UmVsZWFzZTMxMjI3OTk5,0.49a1,main,0.49a1,0,9599,1,2020-09-14T02:47:21Z,2020-09-14T02:48:19Z,"-   Upgraded [CodeMirror](https://codemirror.net/) to 5.57.0. ([#948](https://github.com/simonw/datasette/issues/948))
-   Upgraded code style to Black 20.8b1. ([#958](https://github.com/simonw/datasette/issues/958))
-   New `datasette --pdb` option. ([#962](https://github.com/simonw/datasette/issues/962))
-   `datasette --get` exit code now reflects the internal HTTP status code. ([#947](https://github.com/simonw/datasette/issues/947))
-   Fixed bug where selected facets were not correctly persisted in hidden form fields on the table page. ([#963](https://github.com/simonw/datasette/issues/963))
-   New mechanism for defining page templates with custom path parameters. ([#944](https://github.com/simonw/datasette/issues/944))",107914493,
https://github.com/simonw/datasette/releases/tag/0.49a0,30353073,MDc6UmVsZWFzZTMwMzUzMDcz,0.49a0,main,0.49a0,0,9599,1,2020-08-28T23:12:47Z,2020-08-28T23:18:09Z,"-   `register_output_renderer()` render functions can now return a `Response`. ([#953](https://github.com/simonw/datasette/issues/953))
-   New `--upgrade` option for `datasette install`. ([#945](https://github.com/simonw/datasette/issues/945))
-   `datasette publish heroku` now deploys using Python 3.8.5",107914493,
https://github.com/simonw/datasette/releases/tag/0.48,29749566,MDc6UmVsZWFzZTI5NzQ5NTY2,0.48,main,0.48,0,9599,0,2020-08-16T18:56:31Z,2020-08-16T18:58:34Z,"-   Datasette documentation now lives at [docs.datasette.io](https://docs.datasette.io/).
-   `db.is_mutable` property is now documented and tested, see [Database introspection](https://docs.datasette.io/en/stable/internals.html#internals-database-introspection).
-   The `extra_template_vars`, `extra_css_urls`, `extra_js_urls` and `extra_body_script` plugin hooks now all accept the same arguments. See [extra_template_vars(template, database, table, columns, view_name, request, datasette)](https://docs.datasette.io/en/stable/plugin_hooks.html#plugin-hook-extra-template-vars) for details. ([#939](https://github.com/simonw/datasette/issues/939))
-   Those hooks now accept a new `columns` argument detailing the table columns that will be rendered on that page. ([#938](https://github.com/simonw/datasette/issues/938))
-   Fixed bug where plugins calling `db.execute_write_fn()` could hang Datasette if the connection failed. ([#935](https://github.com/simonw/datasette/issues/935))
-   Fixed bug with the `?_nl=on` output option and binary data. ([#914](https://github.com/simonw/datasette/issues/914))",107914493,
https://github.com/simonw/datasette/releases/tag/0.47.3,29738457,MDc6UmVsZWFzZTI5NzM4NDU3,0.47.3,main,0.47.3,0,9599,0,2020-08-15T20:56:08Z,2020-08-15T21:03:58Z,-   The `datasette --get` command-line mechanism now ensures any plugins using the `startup()` hook are correctly executed. ([#934](https://github.com/simonw/datasette/issues/934)),107914493,
https://github.com/simonw/datasette/releases/tag/0.47.2,29625082,MDc6UmVsZWFzZTI5NjI1MDgy,0.47.2,main,0.47.2,0,9599,0,2020-08-12T20:54:33Z,2020-08-12T20:55:28Z,- Fixed an issue with the Docker image [published to Docker Hub](https://hub.docker.com/r/datasetteproject/datasette). ([#931](https://github.com/simonw/datasette/issues/931)),107914493,
https://github.com/simonw/datasette/releases/tag/0.47.1,29587652,MDc6UmVsZWFzZTI5NTg3NjUy,0.47.1,main,0.47.1,0,9599,0,2020-08-12T02:37:24Z,2020-08-12T02:38:00Z,-   Fixed a bug where the `sdist` distribution of Datasette was not correctly including the template files. ([#930](https://github.com/simonw/datasette/issues/930)),107914493,
https://github.com/simonw/datasette/releases/tag/0.47,29585154,MDc6UmVsZWFzZTI5NTg1MTU0,0.47,main,0.47,0,9599,0,2020-08-12T00:42:47Z,2020-08-12T00:44:52Z,"-   Datasette now has [a GitHub discussions forum](https://github.com/simonw/datasette/discussions) for conversations about the project that go beyond just bug reports and issues.
-   Datasette can now be installed on macOS using Homebrew! Run `brew install simonw/datasette/datasette`. See [Using Homebrew](https://datasette.readthedocs.io/en/stable/installation.html#installation-homebrew). ([#335](https://github.com/simonw/datasette/issues/335))
-   Two new commands: `datasette install name-of-plugin` and `datasette uninstall name-of-plugin`. These are equivalent to `pip install` and `pip uninstall` but automatically run in the same virtual environment as Datasette, so users don't have to figure out where that virtual environment is - useful for installations created using Homebrew or `pipx`. See [Installing plugins](https://datasette.readthedocs.io/en/stable/plugins.html#plugins-installing). ([#925](https://github.com/simonw/datasette/issues/925))
-   A new command-line option, `datasette --get`, accepts a path to a URL within the Datasette instance. It will run that request through Datasette (without starting a web server) and print out the repsonse. See [datasette --get](https://datasette.readthedocs.io/en/stable/getting_started.html#getting-started-datasette-get) for an example. ([#926](https://github.com/simonw/datasette/issues/926))",107914493,
https://github.com/simonw/datasette/releases/tag/0.46,29489364,MDc6UmVsZWFzZTI5NDg5MzY0,0.46,main,0.46,0,9599,0,2020-08-09T16:09:07Z,2020-08-09T16:10:47Z,"**Warning:** This release contains a security fix related to authenticated writable canned queries. If you are using this feature you should upgrade as soon as possible.

-   **Security fix:** CSRF tokens were incorrectly included in read-only canned query forms, which could allow them to be leaked to a sophisticated attacker. See [issue 918](https://github.com/simonw/datasette/issues/918) for details.
-   Datasette now supports GraphQL via the new [datasette-graphql](https://github.com/simonw/datasette-graphql) plugin - see [GraphQL in Datasette with the new datasette-graphql plugin](https://simonwillison.net/2020/Aug/7/datasette-graphql/).
-   Principle git branch has been renamed from `master` to `main`. ([#849](https://github.com/simonw/datasette/issues/849))
-   New debugging tool: `/-/allow-debug tool` ([demo here](https://latest.datasette.io/-/allow-debug)) helps test allow blocks against actors, as described in [Defining permissions with ""allow"" blocks](https://datasette.readthedocs.io/en/stable/authentication.html#authentication-permissions-allow). ([#908](https://github.com/simonw/datasette/issues/908))
-   New logo for the documentation, and a new project tagline: ""An open source multi-tool for exploring and publishing data"".
-   Whitespace in column values is now respected on display, using `white-space: pre-wrap`. ([#896](https://github.com/simonw/datasette/issues/896))
-   New `await request.post_body()` method for accessing the raw POST body, see [Request object](https://datasette.readthedocs.io/en/stable/internals.html#internals-request). ([#897](https://github.com/simonw/datasette/issues/897))
-   Database file downloads now include a `content-length` HTTP header, enabling download progress bars. ([#905](https://github.com/simonw/datasette/issues/905))
-   File downloads now also correctly set the suggested file name using a `content-disposition` HTTP header. ([#909](https://github.com/simonw/datasette/issues/909))
-   `tests` are now excluded from the Datasette package properly - thanks, abeyerpath. ([#456](https://github.com/simonw/datasette/issues/456))
-   The Datasette package published to PyPI now includes `sdist` as well as `bdist_wheel`.
-   Better titles for canned query pages. ([#887](https://github.com/simonw/datasette/issues/887))
-   Now only loads Python files from a directory passed using the `--plugins-dir` option - thanks, Amjith Ramanujam. ([#890](https://github.com/simonw/datasette/pull/890))
-   New documentation section on [Publishing to Vercel](https://datasette.readthedocs.io/en/stable/publish.html#publish-vercel).",107914493,
https://github.com/simonw/datasette/releases/tag/0.24,12080036,MDc6UmVsZWFzZTEyMDgwMDM2,0.24,main,Datasette 0.24,0,9599,0,2018-07-24T04:34:38Z,2018-07-24T16:51:29Z,"See full release notes here: http://datasette.readthedocs.io/en/latest/changelog.html#v0-24
",107914493,
https://github.com/simonw/datasette/releases/tag/0.23.2,11825600,MDc6UmVsZWFzZTExODI1NjAw,0.23.2,main,Datasette 0.23.2,0,9599,0,2018-07-08T05:28:45Z,2018-07-08T05:41:38Z,"Minor bugfix and documentation release.

* CSV export now respects `--cors`, fixes #326
* [Installation instructions](https://datasette.readthedocs.io/en/latest/installation.html) including docker image - closes #328
* Fix for row pages for tables with / in, closes #325",107914493,
https://github.com/simonw/datasette/releases/tag/0.23.1,11591352,MDc6UmVsZWFzZTExNTkxMzUy,0.23.1,main,Datasette 0.23.1,0,9599,0,2018-06-21T15:37:13Z,2018-06-21T16:02:44Z,"Minor bugfix release.

* Correctly display empty strings in HTML table, closes #314
* Allow “.” in database filenames, closes #302
* 404s ending in slash redirect to remove that slash, closes #309
* Fixed incorrect display of compound primary keys with foreign key references. Closes #319
* Docs + example of canned SQL query using || concatenation. Closes #321
* Correctly display facets with value of 0 - closes #318
* Default ‘expand labels’ to checked in CSV advanced export
",107914493,
https://github.com/simonw/datasette/releases/tag/0.23,11530498,MDc6UmVsZWFzZTExNTMwNDk4,0.23,main,"Datasette 0.23: CSV, SpatiaLite and more",0,9599,0,2018-06-18T15:11:57Z,2018-06-18T15:28:37Z,"This release features CSV export, improved options for foreign key expansions, new configuration settings and improved support for SpatiaLite.

See full release notes here: http://datasette.readthedocs.io/en/latest/changelog.html#v0-23",107914493,
https://github.com/simonw/datasette/releases/tag/0.22.1,11136605,MDc6UmVsZWFzZTExMTM2NjA1,0.22.1,main,Datasette 0.22.1,0,9599,0,2018-05-23T14:00:01Z,2018-05-23T14:04:17Z,"Bugfix release, plus we now use [versioneer](https://github.com/warner/python-versioneer) for our version numbers.

- Faceting no longer breaks pagination, fixes #282
- Add ``__version_info__`` derived from `__version__` [Robert Gieseke]

  This might be tuple of more than two values (major and minor
  version) if commits have been made after a release.
- Add version number support with Versioneer. [Robert Gieseke]

  Versioneer Licence:
  Public Domain (CC0-1.0)

  Closes #273
- Refactor inspect logic [Russ Garrett]",107914493,
https://github.com/simonw/datasette/releases/tag/0.22,11087850,MDc6UmVsZWFzZTExMDg3ODUw,0.22,main,Datasette 0.22: Datasette Facets,0,9599,0,2018-05-20T23:41:47Z,2018-05-20T23:44:19Z,"The big new feature in this release is [facets](http://datasette.readthedocs.io/en/latest/facets.html). Datasette can now apply faceted browse to any column in any table. It will also suggest possible facets. See the [Datasette Facets](https://simonwillison.net/2018/May/20/datasette-facets/) announcement post for more details.

In addition to the work on facets:

- Added [docs for introspection endpoints](https://datasette.readthedocs.io/en/latest/introspection.html)

- New `--config` option, added `--help-config`, closes #274

  Removed the `--page_size=` argument to `datasette serve` in favour of:

      datasette serve --config default_page_size:50 mydb.db

  Added new help section:

      $ datasette --help-config
      Config options:
        default_page_size            Default page size for the table view
                                     (default=100)
        max_returned_rows            Maximum rows that can be returned from a table
                                     or custom query (default=1000)
        sql_time_limit_ms            Time limit for a SQL query in milliseconds
                                     (default=1000)
        default_facet_size           Number of values to return for requested facets
                                     (default=30)
        facet_time_limit_ms          Time limit for calculating a requested facet
                                     (default=200)
        facet_suggest_time_limit_ms  Time limit for calculating a suggested facet
                                     (default=50)
- Only apply responsive table styles to `.rows-and-column`

  Otherwise they interfere with tables in the description, e.g. on
  https://fivethirtyeight.datasettes.com/fivethirtyeight/nba-elo%2Fnbaallelo

- Refactored views into new `views/` modules, refs #256
- [Documentation for SQLite full-text search](http://datasette.readthedocs.io/en/latest/full_text_search.html) support, closes #253
- `/-/versions` now includes SQLite `fts_versions`, closes #252",107914493,
https://github.com/simonw/datasette/releases/tag/0.21,10868113,MDc6UmVsZWFzZTEwODY4MTEz,0.21,main,"Datasette 0.21: New _shape=, new _size=, search within columns",0,9599,0,2018-05-05T23:15:38Z,2018-05-05T23:21:33Z,"New JSON `_shape=` options, the ability to set table `_size=` and a mechanism for searching within specific columns.

  - Default tests to using a longer timelimit
    
    Every now and then a test will fail in Travis CI on Python 3.5 because it hit the default 20ms SQL time limit.
    
    Test fixtures now default to a 200ms time limit, and we only use the 20ms time limit for the specific test that tests query interruption.

    This should make our tests on Python 3.5 in Travis much more stable.

  - Support `_search_COLUMN=text` searches, closes [\#237](https://github.com/simonw/datasette/issues/237)

  - Show version on `/-/plugins` page, closes [\#248](https://github.com/simonw/datasette/issues/248)

  - `?_size=max` option, closes [\#249](https://github.com/simonw/datasette/issues/249)

  - Added `/-/versions` and `/-/versions.json`, closes [\#244](https://github.com/simonw/datasette/issues/244)
    
    Sample output:
    
        {
          ""python"": {
            ""version"": ""3.6.3"",
            ""full"": ""3.6.3 (default, Oct  4 2017, 06:09:38) \n[GCC 4.2.1 Compatible Apple LLVM 9.0.0 (clang-900.0.37)]""
          },
          ""datasette"": {
            ""version"": ""0.20""
          },
          ""sqlite"": {
            ""version"": ""3.23.1"",
            ""extensions"": {
              ""json1"": null,
              ""spatialite"": ""4.3.0a""
            }
          }
        }

  - Renamed `?_sql_time_limit_ms=` to `?_timelimit`, closes [\#242](https://github.com/simonw/datasette/issues/242)

  - New `?_shape=array` option + tweaks to `_shape`, closes [\#245](https://github.com/simonw/datasette/issues/245)
    
      - Default is now `?_shape=arrays` (renamed from `lists`)
      - New `?_shape=array` returns an array of objects as the root object
      - Changed `?_shape=object` to return the object as the root
      - Updated docs

  - FTS tables now detected by `inspect()`, closes [\#240](https://github.com/simonw/datasette/issues/240)

  - New `?_size=XXX` querystring parameter for table view, closes [\#229](https://github.com/simonw/datasette/issues/229)
    
    Also added documentation for all of the `_special` arguments.
    
    Plus deleted some duplicate logic implementing `_group_count`.

  - If `max_returned_rows==page_size`, increment `max_returned_rows` - fixes [\#230](https://github.com/simonw/datasette/issues/230)

  - New `hidden: True` option for table metadata, closes [\#239](https://github.com/simonw/datasette/issues/239)

  - Hide `idx_*` tables if spatialite detected, closes [\#228](https://github.com/simonw/datasette/issues/228)

  - Added `class=rows-and-columns` to custom query results table

  - Added CSS class `rows-and-columns` to main table

  - `label_column` option in `metadata.json` - closes [\#234](https://github.com/simonw/datasette/issues/234)",107914493,
https://github.com/simonw/datasette/releases/tag/0.20,10645022,MDc6UmVsZWFzZTEwNjQ1MDIy,0.20,main,Datasette 0.20: static assets and templates for plugins,0,9599,0,2018-04-20T14:36:29Z,2018-04-20T14:41:14Z,"Mostly new work on the [Plugins](http://datasette.readthedocs.io/en/latest/plugins.html) mechanism: plugins can now bundle static assets and custom templates, and ``datasette publish`` has a new ``--install=name-of-plugin`` option.

- Add col-X classes to HTML table on custom query page
- Fixed out-dated template in documentation
- Plugins can now bundle custom templates, #224
- Added /-/metadata /-/plugins /-/inspect, #225
- Documentation for --install option, refs #223
- Datasette publish/package --install option, #223
- Fix for plugins in Python 3.5, #222
- New plugin hooks: extra_css_urls() and extra_js_urls(), #214
- /-/static-plugins/PLUGIN_NAME/ now serves static/ from plugins
- <th> now gets class=""col-X"" - plus added col-X documentation
- Use to_css_class for table cell column classes

  This ensures that columns with spaces in the name will still
  generate usable CSS class names. Refs #209
- Add column name classes to <td>s, make PK bold [Russ Garrett]
- Don't duplicate simple primary keys in the link column [Russ Garrett]

  When there's a simple (single-column) primary key, it looks weird to
  duplicate it in the link column.

  This change removes the second PK column and treats the link column as
  if it were the PK column from a header/sorting perspective.
- Correct escaping for HTML display of row links [Russ Garrett]
- Longer time limit for test_paginate_compound_keys

  It was failing intermittently in Travis - see #209
- Use application/octet-stream for downloadable databses
- Updated PyPI classifiers
- Updated PyPI link to pypi.org",107914493,
https://github.com/simonw/datasette/releases/tag/0.19,10575542,MDc6UmVsZWFzZTEwNTc1NTQy,0.19,main,Datasette 0.19: plugins preview,0,9599,0,2018-04-17T02:12:21Z,2018-04-17T02:21:51Z,"This is the first preview of the new Datasette plugins mechanism. Only two plugin hooks are available so far - for custom SQL functions and custom template filters. There's plenty more to come - read [the documentation](https://datasette.readthedocs.io/en/latest/plugins.html) and get involved in [the tracking ticket](https://github.com/simonw/datasette/issues/14) if you have feedback on the direction so far.

- Fix for `_sort_desc=sortable_with_nulls` test, refs [#216](https://github.com/simonw/datasette/issues/216)

- Fixed [#216](https://github.com/simonw/datasette/issues/216) - paginate correctly when sorting by nullable column

- Initial documentation for plugins, closes [#213](https://github.com/simonw/datasette/issues/213)

  https://datasette.readthedocs.io/en/latest/plugins.html

- New `--plugins-dir=plugins/` option ([#212](https://github.com/simonw/datasette/issues/212))

  New option causing Datasette to load and evaluate all of the Python files in the specified directory and register any plugins that are defined in those files.

  This new option is available for the following commands:

      datasette serve mydb.db --plugins-dir=plugins/
      datasette publish now/heroku mydb.db --plugins-dir=plugins/
      datasette package mydb.db --plugins-dir=plugins/

- Start of the plugin system, based on pluggy ([#210](https://github.com/simonw/datasette/issues/14))

  Uses https://pluggy.readthedocs.io/ originally created for the py.test project

  We're starting with two plugin hooks:

  `prepare_connection(conn)`

  This is called when a new SQLite connection is created. It can be used to register custom SQL functions.

  `prepare_jinja2_environment(env)`

  This is called with the Jinja2 environment. It can be used to register custom template tags and filters.

  An example plugin which uses these two hooks can be found at https://github.com/simonw/datasette-plugin-demos or installed using `pip install datasette-plugin-demos`

  Refs [#14](https://github.com/simonw/datasette/issues/14)

- Return HTTP 405 on InvalidUsage rather than 500. [Russ Garrett]

  This also stops it filling up the logs. This happens for HEAD requests at the moment - which perhaps should be handled better, but that's a different issue.",107914493,
https://github.com/simonw/datasette/releases/tag/0.18,10547491,MDc6UmVsZWFzZTEwNTQ3NDkx,0.18,main,Datasette 0.18: units,0,9599,0,2018-04-14T15:36:10Z,2018-04-14T15:45:11Z,"This release introduces [support for units](http://datasette.readthedocs.io/en/latest/metadata.html#specifying-units-for-a-column), contributed by Russ Garrett ([\#203](https://github.com/simonw/datasette/issues/203)). You can now optionally specify the units for specific columns using `metadata.json`. Once specified, units will be displayed in the HTML view of your table. They also become available for use in filters - if a column is configured with a unit of distance, you can request all rows where that column is less than 50 meters or more than 20 feet [for example](https://wtr-api.herokuapp.com/wtr-663ea99/license_frequency?frequency__gt=50GHz&height__lt=50ft).

  - Link foreign keys which don't have labels. \[Russ Garrett\]
    
    This renders unlabeled FKs as simple links.
    
    Also includes bonus fixes for two minor issues:
    
      - In foreign key link hrefs the primary key was escaped using HTML escaping rather than URL escaping. This broke some non-integer PKs.
      - Print tracebacks to console when handling 500 errors.

  - Fix SQLite error when loading rows with no incoming FKs. \[Russ Garrett\]
    
    This fixes `ERROR: conn=<sqlite3.Connection object at 0x10bbb9f10>, sql = 'select ', params = {'id': '1'}` caused by an invalid query when loading incoming FKs.
    
    The error was ignored due to async but it still got printed to the console.

  - Allow custom units to be registered with Pint. \[Russ Garrett\]

  - Support units in filters. \[Russ Garrett\]

  - Tidy up units support. \[Russ Garrett\]
    
      - Add units to exported JSON
      - Units key in metadata skeleton
      - Docs

  - Initial units support. \[Russ Garrett\]
    
    Add support for specifying units for a column in `metadata.json` and rendering them on display using [pint](https://pint.readthedocs.io/en/latest/)",107914493,
https://github.com/simonw/datasette/releases/tag/0.16,10542772,MDc6UmVsZWFzZTEwNTQyNzcy,0.16,main,"Datasette 0.16: sort on mobile, better error handling",0,9599,0,2018-04-13T18:28:55Z,2018-04-13T21:10:53Z,"  - Better mechanism for handling errors; 404s for missing table/database
    
    New error mechanism closes [#193](https://github.com/simonw/datasette/issues/193)
    
    404s for missing tables/databases closes [#184](https://github.com/simonw/datasette/issues/184)

  - long\_description in markdown for the new PyPI

  - Hide Spatialite system tables. \[Russ Garrett\]

  - Allow `explain select` / `explain query plan select` [#201](https://github.com/simonw/datasette/issues/201)

  - Datasette inspect now finds primary\_keys [#195](https://github.com/simonw/datasette/issues/195)

  - Ability to sort using form fields (for mobile portrait mode) [#199](https://github.com/simonw/datasette/issues/199)
    
    We now display sort options as a select box plus a descending checkbox, which means you can apply sort orders even in portrait mode on a mobile phone where the column headers are hidden.",107914493,
https://github.com/simonw/datasette/releases/tag/0.15,10458641,MDc6UmVsZWFzZTEwNDU4NjQx,0.15,main,Datasette 0.15: sort by column,0,9599,0,2018-04-09T15:48:24Z,2018-04-09T15:55:29Z,"The biggest new feature in this release is the ability to sort by column. On the table page the column headers can now be clicked to apply sort (or descending sort), or you can specify `?_sort=column` or `?_sort_desc=column` directly in the URL.

You can try this feature out on [this fivethirtyeight data](https://fivethirtyeight.datasettes.com/fivethirtyeight/congress-age%2Fcongress-terms) about the ages of different US politicians.

  - `table_rows` =\> `table_rows_count`, `filtered_table_rows` =\> `filtered_table_rows_count`
    
    Renamed properties. Closes [\#194](https://github.com/simonw/datasette/issues/194)

  - New `sortable_columns` option in `metadata.json` to control sort options.
    
    You can now explicitly set which columns in a table can be used for sorting using the `_sort` and `_sort_desc` arguments using `metadata.json`:
    
        {
            ""databases"": {
                ""database1"": {
                    ""tables"": {
                        ""example_table"": {
                            ""sortable_columns"": [
                                ""height"",
                                ""weight""
                            ]
                        }
                    }
                }
            }
        }
    
    Refs [\#189](https://github.com/simonw/datasette/issues/189)

  - Column headers now link to sort/desc sort - refs [\#189](https://github.com/simonw/datasette/issues/189)

  - `_sort` and `_sort_desc` parameters for table views
    
    Allows for paginated sorted results based on a specified column.
    
    Refs [\#189](https://github.com/simonw/datasette/issues/189)

  - Total row count now correct even if `_next` applied

  - Use .custom\_sql() for \_group\_count implementation (refs [\#150](https://github.com/simonw/datasette/issues/150))

  - Make HTML title more readable in query template ([\#180](https://github.com/simonw/datasette/issues/180)) \[Ryan Pitts\]

  - New `?_shape=objects/object/lists` param for JSON API ([\#192](https://github.com/simonw/datasette/issues/192))
    
    New `_shape=` parameter replacing old `.jsono` extension
    
    Now instead of this:
    
        /database/table.jsono
    
    We use the `_shape` parameter like this:
    
        /database/table.json?_shape=objects
    
    Also introduced a new `_shape` called `object` which looks like this:
    
        /database/table.json?_shape=object
    
    Returning an object for the rows key:
    
        ...
        ""rows"": {
            ""pk1"": {
                ...
            },
            ""pk2"": {
                ...
            }
        }
    
    Refs [\#122](https://github.com/simonw/datasette/issues/122)

  - Utility for writing test database fixtures to a .db file
    
    `python tests/fixtures.py /tmp/hello.db`
    
    This is useful for making a SQLite database of the test fixtures for interactive exploration.

  - Compound primary key `_next=` now plays well with extra filters
    
    Closes [\#190](https://github.com/simonw/datasette/issues/190)

  - Fixed bug with keyset pagination over compound primary keys
    
    Refs [\#190](https://github.com/simonw/datasette/issues/190)

  - Database/Table views inherit `source/license/source_url/license_url` metadata
    
    If you set the `source_url/license_url/source/license` fields in your root metadata those values will now be inherited all the way down to the database and table templates.
    
    The `title/description` are NOT inherited.
    
    Also added unit tests for the HTML generated by the metadata.
    
    Refs [\#185](https://github.com/simonw/datasette/issues/185)

  - Add metadata, if it exists, to heroku temp dir ([\#178](https://github.com/simonw/datasette/issues/178)) \[Tony Hirst\]

  - Initial documentation for pagination

  - Broke up test\_app into test\_api and test\_html

  - Fixed bug with .json path regular expression
    
    I had a table called `geojson` and it caused an exception because the regex was matching `.json` and not `\.json`

  - Deploy to Heroku with Python 3.6.3",107914493,
https://github.com/simonw/datasette/releases/tag/0.14,8841695,MDc6UmVsZWFzZTg4NDE2OTU=,0.14,main,Datasette 0.14: customization edition,0,9599,0,2017-12-10T01:33:24Z,2017-12-10T01:41:14Z,"The theme of this release is customization: Datasette now allows every aspect of its presentation [to be customized](http://datasette.readthedocs.io/en/latest/custom_templates.html) either using additional CSS or by providing entirely new templates.

Datasette's [metadata.json format](http://datasette.readthedocs.io/en/latest/metadata.html) has also been expanded, to allow per-database and per-table metadata. A new `datasette skeleton` command can be used to generate a skeleton JSON file ready to be filled in with per-database and per-table details.

The `metadata.json` file can also be used to define [canned queries](http://datasette.readthedocs.io/en/latest/sql_queries.html#canned-queries), as a more powerful alternative to SQL views.

  - `extra_css_urls`/`extra_js_urls` in metadata
    
    A mechanism in the `metadata.json` format for adding custom CSS and JS urls.
    
    Create a `metadata.json` file that looks like this:
    
        {
            ""extra_css_urls"": [
                ""https://simonwillison.net/static/css/all.bf8cd891642c.css""
            ],
            ""extra_js_urls"": [
                ""https://code.jquery.com/jquery-3.2.1.slim.min.js""
            ]
        }
    
    Then start datasette like this:
    
        datasette mydb.db --metadata=metadata.json
    
    The CSS and JavaScript files will be linked in the `<head>` of every page.
    
    You can also specify a SRI (subresource integrity hash) for these assets:
    
        {
            ""extra_css_urls"": [
                {
                    ""url"": ""https://simonwillison.net/static/css/all.bf8cd891642c.css"",
                    ""sri"": ""sha384-9qIZekWUyjCyDIf2YK1FRoKiPJq4PHt6tp/ulnuuyRBvazd0hG7pWbE99zvwSznI""
                }
            ],
            ""extra_js_urls"": [
                {
                    ""url"": ""https://code.jquery.com/jquery-3.2.1.slim.min.js"",
                    ""sri"": ""sha256-k2WSCIexGzOj3Euiig+TlR8gA0EmPjuc79OEeY5L45g=""
                }
            ]
        }
    
    Modern browsers will only execute the stylesheet or JavaScript if the SRI hash matches the content served. You can generate hashes using <https://www.srihash.org/>

  - Auto-link column values that look like URLs ([\#153](https://github.com/simonw/datasette/issues/153))

  - CSS styling hooks as classes on the body ([\#153](https://github.com/simonw/datasette/issues/153))
    
    Every template now gets CSS classes in the body designed to support custom styling.
    
    The index template (the top level page at `/`) gets this:
    
        <body class=""index"">
    
    The database template (`/dbname/`) gets this:
    
        <body class=""db db-dbname"">
    
    The table template (`/dbname/tablename`) gets:
    
        <body class=""table db-dbname table-tablename"">
    
    The row template (`/dbname/tablename/rowid`) gets:
    
        <body class=""row db-dbname table-tablename"">
    
    The `db-x` and `table-x` classes use the database or table names themselves IF they are valid CSS identifiers. If they aren't, we strip any invalid characters out and append a 6 character md5 digest of the original name, in order to ensure that multiple tables which resolve to the same stripped character version still have different CSS classes.
    
    Some examples (extracted from the unit tests):
    
        ""simple"" => ""simple""
        ""MixedCase"" => ""MixedCase""
        ""-no-leading-hyphens"" => ""no-leading-hyphens-65bea6""
        ""_no-leading-underscores"" => ""no-leading-underscores-b921bc""
        ""no spaces"" => ""no-spaces-7088d7""
        ""-"" => ""336d5e""
        ""no $ characters"" => ""no--characters-59e024""

  - `datasette --template-dir=mytemplates/` argument
    
    You can now pass an additional argument specifying a directory to look for custom templates in.
    
    Datasette will fall back on the default templates if a template is not found in that directory.

  - Ability to over-ride templates for individual tables/databases.
    
    It is now possible to over-ride templates on a per-database / per-row or per-table basis.
    
    When you access e.g. `/mydatabase/mytable` Datasette will look for the following:
    
        - table-mydatabase-mytable.html
        - table.html
    
    If you provided a `--template-dir` argument to datasette serve it will look in that directory first.
    
    The lookup rules are as follows:
    
        Index page (/):
            index.html
        
        Database page (/mydatabase):
            database-mydatabase.html
            database.html
        
        Table page (/mydatabase/mytable):
            table-mydatabase-mytable.html
            table.html
        
        Row page (/mydatabase/mytable/id):
            row-mydatabase-mytable.html
            row.html
    
    If a table name has spaces or other unexpected characters in it, the template filename will follow the same rules as our custom `<body>` CSS classes - for example, a table called ""Food Trucks"" will attempt to load the following templates:
    
        table-mydatabase-Food-Trucks-399138.html
        table.html
    
    It is possible to extend the default templates using Jinja template inheritance. If you want to customize EVERY row template with some additional content you can do so by creating a row.html template like this:
    
        {% extends ""default:row.html"" %}
        
        {% block content %}
        <h1>EXTRA HTML AT THE TOP OF THE CONTENT BLOCK</h1>
        <p>This line renders the original block:</p>
        {{ super() }}
        {% endblock %}

  - `--static` option for datasette serve ([\#160](https://github.com/simonw/datasette/issues/160))
    
    You can now tell Datasette to serve static files from a specific location at a specific mountpoint.
    
    For example:
    
        datasette serve mydb.db --static extra-css:/tmp/static/css
    
    Now if you visit this URL:
    
        http://localhost:8001/extra-css/blah.css
    
    The following file will be served:
    
        /tmp/static/css/blah.css

  - Canned query support.
    
    Named canned queries can now be defined in `metadata.json` like this:
    
        {
            ""databases"": {
                ""timezones"": {
                    ""queries"": {
                        ""timezone_for_point"": ""select tzid from timezones ...""
                    }
                }
            }
        }
    
    These will be shown in a new ""Queries"" section beneath ""Views"" on the database page.

  - New `datasette skeleton` command for generating `metadata.json` ([\#164](https://github.com/simonw/datasette/issues/164))

  - `metadata.json` support for per-table/per-database metadata ([\#165](https://github.com/simonw/datasette/issues/165))
    
    Also added support for descriptions and HTML descriptions.
    
    Here's an example metadata.json file illustrating custom per-database and per-table metadata:
    
        {
            ""title"": ""Overall datasette title"",
            ""description_html"": ""This is a <em>description with HTML</em>."",
            ""databases"": {
                ""db1"": {
                    ""title"": ""First database"",
                    ""description"": ""This is a string description & has no HTML"",
                    ""license_url"": ""http://example.com/"",
                ""license"": ""The example license"",
                    ""queries"": {
                      ""canned_query"": ""select * from table1 limit 3;""
                    },
                    ""tables"": {
                        ""table1"": {
                            ""title"": ""Custom title for table1"",
                            ""description"": ""Tables can have descriptions too"",
                            ""source"": ""This has a custom source"",
                            ""source_url"": ""http://example.com/""
                        }
                    }
                }
            }
        }

  - Renamed `datasette build` command to `datasette inspect` ([\#130](https://github.com/simonw/datasette/issues/130))

  - Upgrade to Sanic 0.7.0 ([\#168](https://github.com/simonw/datasette/issues/168))
    
    <https://github.com/channelcat/sanic/releases/tag/0.7.0>

  - Package and publish commands now accept `--static` and `--template-dir`
    
    Example usage:
    
        datasette package --static css:extra-css/ --static js:extra-js/ \
          sf-trees.db --template-dir templates/ --tag sf-trees --branch master
    
    This creates a local Docker image that includes copies of the templates/, extra-css/ and extra-js/ directories. You can then run it like this:
    
        docker run -p 8001:8001 sf-trees
    
    For publishing to Zeit now:
    
        datasette publish now --static css:extra-css/ --static js:extra-js/ \
          sf-trees.db --template-dir templates/ --name sf-trees --branch master

  - HTML comment showing which templates were considered for a page ([\#171](https://github.com/simonw/datasette/issues/171))
",107914493,
https://github.com/simonw/datasette/releases/tag/0.13,8652546,MDc6UmVsZWFzZTg2NTI1NDY=,0.13,main,"Datasette 0.13: foreign key, search and filters",0,9599,0,2017-11-25T03:33:39Z,2017-11-25T03:44:46Z,"# 0.13 (2017-11-24)

  - Search now applies to current filters.
    
    Combined search into the same form as filters.
    
    Closes [\#133](https://github.com/simonw/datasette/issues/133)

  - Much tidier design for table view header.
    
    Closes [\#147](https://github.com/simonw/datasette/issues/147)

  - Added `?column__not=blah` filter.
    
    Closes [\#148](https://github.c)

  - Row page now resolves foreign keys.
    
    Closes [\#132]()

  - Further tweaks to select/input filter styling.
    
    Refs [\#86]() - thanks for the help, @natbat\!

  - Show linked foreign key in table cells.

  - Added UI for editing table filters.
    
    Refs [\#86]()

  - Hide FTS-created tables on index pages.
    
    Closes [\#129]()

  - Add publish to heroku support \[Jacob Kaplan-Moss\]
    
    `datasette publish heroku mydb.db`
    
    Pull request [\#104]()

  - Initial implementation of `?_group_count=column`.
    
    URL shortcut for counting rows grouped by one or more columns.
    
    `?_group_count=column1&_group_count=column2` works as well.
    
    SQL generated looks like this:
    
        select ""qSpecies"", count(*) as ""count""
        from Street_Tree_List
        group by ""qSpecies""
        order by ""count"" desc limit 100
    
    Or for two columns like this:
    
        select ""qSpecies"", ""qSiteInfo"", count(*) as ""count""
        from Street_Tree_List
        group by ""qSpecies"", ""qSiteInfo""
        order by ""count"" desc limit 100
    
    Refs [\#44]()

  - Added `--build=master` option to datasette publish and package.
    
    The `datasette publish` and `datasette package` commands both now
    accept an optional `--build` argument. If provided, this can be used
    to specify a branch published to GitHub that should be built into
    the container.
    
    This makes it easier to test code that has not yet been officially
    released to PyPI, e.g.:
    
        datasette publish now mydb.db --branch=master

  - Implemented `?_search=XXX` + UI if a FTS table is detected.
    
    Closes [\#131]()

  - Added `datasette --version` support.

  - Table views now show expanded foreign key references, if possible.
    
    If a table has foreign key columns, and those foreign key tables
    have `label_columns`, the TableView will now query those other
    tables for the corresponding values and display those values as
    links in the corresponding table cells.
    
    label\_columns are currently detected by the `inspect()` function,
    which looks for any table that has just two columns - an ID column
    and one other - and sets the `label_column` to be that second non-ID
    column.

  - Don't prevent tabbing to ""Run SQL"" button ([\#117]()) \[Robert
    Gieseke\]
    
    See comment in [\#115]()

  - Add keyboard shortcut to execute SQL query ([\#115]()) \[Robert
    Gieseke\]

  - Allow `--load-extension` to be set via environment variable.

  - Add support for `?field__isnull=1` ([\#107]()) \[Ray N\]

  - Add spatialite, switch to debian and local build ([\#114]()) \[Ariel
    Núñez\]

  - Added `--load-extension` argument to datasette serve.
    
    Allows loading of SQLite extensions. Refs [\#110]().
",107914493,
https://github.com/simonw/datasette/releases/tag/0.12,8546575,MDc6UmVsZWFzZTg1NDY1NzU=,0.12,main,Datasette 0.12,0,9599,0,2017-11-16T15:37:46Z,2017-11-16T16:01:35Z,"-   Added `__version__`, now displayed as tooltip in page footer
    (#108).
-   Added initial docs, including a changelog (#99).
-   Turned on auto-escaping in Jinja.
-   Added a UI for editing named parameters (#96).

     You can now construct a custom SQL statement using SQLite named parameters (e.g. `:name`) and datasette will display form fields for editing those parameters. [Here's an example](https://australian-dogs.now.sh/australian-dogs-3ba9628?sql=select+name%2C+count%28*%29+as+n+from+%28%0D%0A%0D%0Aselect+upper%28%22Animal+name%22%29+as+name+from+%5BAdelaide-City-Council-dog-registrations-2013%5D+where+Breed+like+%3Abreed%0D%0A%0D%0Aunion+all%0D%0A%0D%0Aselect+upper%28Animal_Name%29+as+name+from+%5BAdelaide-City-Council-dog-registrations-2014%5D+where+Breed_Description+like+%3Abreed%0D%0A%0D%0Aunion+all+%0D%0A%0D%0Aselect+upper%28Animal_Name%29+as+name+from+%5BAdelaide-City-Council-dog-registrations-2015%5D+where+Breed_Description+like+%3Abreed%0D%0A%0D%0Aunion+all%0D%0A%0D%0Aselect+upper%28%22AnimalName%22%29+as+name+from+%5BCity-of-Port-Adelaide-Enfield-Dog_Registrations_2016%5D+where+AnimalBreed+like+%3Abreed%0D%0A%0D%0Aunion+all%0D%0A%0D%0Aselect+upper%28%22Animal+Name%22%29+as+name+from+%5BMitcham-dog-registrations-2015%5D+where+Breed+like+%3Abreed%0D%0A%0D%0Aunion+all%0D%0A%0D%0Aselect+upper%28%22DOG_NAME%22%29+as+name+from+%5Bburnside-dog-registrations-2015%5D+where+DOG_BREED+like+%3Abreed%0D%0A%0D%0Aunion+all+%0D%0A%0D%0Aselect+upper%28%22Animal_Name%22%29+as+name+from+%5Bcity-of-playford-2015-dog-registration%5D+where+Breed_Description+like+%3Abreed%0D%0A%0D%0Aunion+all%0D%0A%0D%0Aselect+upper%28%22Animal+Name%22%29+as+name+from+%5Bcity-of-prospect-dog-registration-details-2016%5D+where%22Breed+Description%22+like+%3Abreed%0D%0A%0D%0A%29+group+by+name+order+by+n+desc%3B&breed=pug) which lets you see the most popular names for dogs of different species registered through various dog registration schemes in Australia.
-   Pin to specific Jinja version. (#100).
-   Default to 127.0.0.1 not 0.0.0.0. (#98).
-   Added extra metadata options to publish and package commands.
    (#92).

    You can now run these commands like so:

        datasette now publish mydb.db \
            --title=""My Title"" \
            --source=""Source"" \
            --source_url=""http://www.example.com/"" \
            --license=""CC0"" \
            --license_url=""https://creativecommons.org/publicdomain/zero/1.0/""

    This will write those values into the metadata.json that is packaged
    with the app. If you also pass `--metadata=metadata.json` that file
    will be updated with the extra values before being written into the
    Docker image.

-   Added simple production-ready Dockerfile (#94) \[Andrew Cutler\]
-   New `?_sql_time_limit_ms=10` argument to database and table page
    (#95)
-   SQL syntax highlighting with Codemirror (#89) \[Tom Dyson\]",107914493,