html_url,issue_url,id,node_id,user,created_at,updated_at,author_association,body,reactions,issue,performed_via_github_app https://github.com/simonw/datasette/pull/1999#issuecomment-1460759358,https://api.github.com/repos/simonw/datasette/issues/1999,1460759358,IC_kwDOBm6k_c5XEWs-,9599,2023-03-08T19:48:13Z,2023-03-20T18:47:12Z,OWNER,"Breaking this down into smaller steps: - [x] Get `?_next=` working - [x] Implement extensions - so `.json` is needed again for the JSON version, and anything without an extension is passed through a new code path for HTML - [ ] That HTML view should only access JSON data, which can be seen by using `.context` - this will require a lot of updates to templates (it may be necessary to still provide access to some helper functions though). This will form the basis of the ambition to fully document the template context. - [ ] Get a bunch of the existing table HTML and JSON tests to pass - [ ] Use those tests to refactor the nasty `_next` code, see https://github.com/simonw/datasette/pull/1999#issuecomment-1460905469 - [ ] Figure out how the [register_output_renderer(datasette)](https://docs.datasette.io/en/stable/plugin_hooks.html#register-output-renderer-datasette) plugin hook should work","{""total_count"": 0, ""+1"": 0, ""-1"": 0, ""laugh"": 0, ""hooray"": 0, ""confused"": 0, ""heart"": 0, ""rocket"": 0, ""eyes"": 0}",1551694938, https://github.com/simonw/datasette/pull/1999#issuecomment-1461047607,https://api.github.com/repos/simonw/datasette/issues/1999,1461047607,IC_kwDOBm6k_c5XFdE3,9599,2023-03-08T23:51:46Z,2023-03-08T23:51:46Z,OWNER,"This feels quite nice: ","{""total_count"": 0, ""+1"": 0, ""-1"": 0, ""laugh"": 0, ""hooray"": 0, ""confused"": 0, ""heart"": 0, ""rocket"": 0, ""eyes"": 0}",1551694938, https://github.com/simonw/datasette/pull/1999#issuecomment-1461044477,https://api.github.com/repos/simonw/datasette/issues/1999,1461044477,IC_kwDOBm6k_c5XFcT9,9599,2023-03-08T23:47:26Z,2023-03-08T23:47:26Z,OWNER,"I want to package together all of the extras that are needed for the HTML format. A few options for doing that: - Introduce `?_extra=_html` where the leading underscore indicates that this is a ""bundle"" of extras, then define a bundle that's everything needed for the HTML renderer - Have some other mechanism whereby different renderers can request a bundle of extras. I'm leaning towards the first option. I'll try that and see what it looks like.","{""total_count"": 0, ""+1"": 0, ""-1"": 0, ""laugh"": 0, ""hooray"": 0, ""confused"": 0, ""heart"": 0, ""rocket"": 0, ""eyes"": 0}",1551694938, https://github.com/simonw/datasette/pull/1999#issuecomment-1461023559,https://api.github.com/repos/simonw/datasette/issues/1999,1461023559,IC_kwDOBm6k_c5XFXNH,9599,2023-03-08T23:23:02Z,2023-03-08T23:23:02Z,OWNER,"To get this unblocked, I'm going to allow myself to pass non-JSON-serializable objects to the HTML template version of things. If I can get that working (and get the existing tests to pass) I can consider a later change that makes those JSON serializable - or admit that it's OK for the templates to have non-JSON data passed to them and figure out how best to document those variables independently from the JSON documentation.","{""total_count"": 0, ""+1"": 0, ""-1"": 0, ""laugh"": 0, ""hooray"": 0, ""confused"": 0, ""heart"": 0, ""rocket"": 0, ""eyes"": 0}",1551694938, https://github.com/simonw/datasette/pull/1999#issuecomment-1461002039,https://api.github.com/repos/simonw/datasette/issues/1999,1461002039,IC_kwDOBm6k_c5XFR83,9599,2023-03-08T22:58:16Z,2023-03-08T23:02:09Z,OWNER,"The reason for that `Row` thing is that it allows custom templates that do things like this: https://docs.datasette.io/en/stable/changelog.html#easier-custom-templates-for-table-rows ```html+jinja {% for row in display_rows %}

{{ row[""title""] }}

{{ row[""description""] }}

Category: {{ row.display(""category_id"") }}

{% endfor %} ``` Is that a good design? the `.display()` thing feels weird - I wonder if anyone has ever actually used that. It's documented here: https://docs.datasette.io/en/0.64.2/custom_templates.html#custom-templates > If you want to output the rendered HTML version of a column, including any links to foreign keys, you can use `{{ row.display(""column_name"") }}`. I can't see any examples of anyone using it in this code search: https://cs.github.com/?scopeName=All+repos&scope=&q=datasette+row.display It is however useful to have some kind of abstraction layer here that insulates the SQLite `Row` object, since having an extra layer will help if Datasette ever grows support for alternative database backends such as DuckDB or PostgreSQL.","{""total_count"": 0, ""+1"": 0, ""-1"": 0, ""laugh"": 0, ""hooray"": 0, ""confused"": 0, ""heart"": 0, ""rocket"": 0, ""eyes"": 0}",1551694938, https://github.com/simonw/datasette/pull/1999#issuecomment-1460988975,https://api.github.com/repos/simonw/datasette/issues/1999,1460988975,IC_kwDOBm6k_c5XFOwv,9599,2023-03-08T22:42:57Z,2023-03-08T22:42:57Z,OWNER,"Aside idea: it might be interesting if there were ""lazy"" template variables available in the context: things that are not actually executed unless a template author requests them. Imagine if `metadata` was a lazy template reference, such that custom templates that don't display any metadata don't trigger it to be resolved (which might involve additional database queries some day).","{""total_count"": 0, ""+1"": 0, ""-1"": 0, ""laugh"": 0, ""hooray"": 0, ""confused"": 0, ""heart"": 0, ""rocket"": 0, ""eyes"": 0}",1551694938, https://github.com/simonw/datasette/pull/1999#issuecomment-1460986533,https://api.github.com/repos/simonw/datasette/issues/1999,1460986533,IC_kwDOBm6k_c5XFOKl,9599,2023-03-08T22:40:28Z,2023-03-08T22:40:28Z,OWNER,"Figuring out what to do with `display_columns_and_rows()` is hard. That returns rows as this special kind of object, which is designed to be accessed from the HTML templates: https://github.com/simonw/datasette/blob/96e94f9b7b2db53865e61390bcce6761727f26d8/datasette/views/table.py#L45-L71","{""total_count"": 0, ""+1"": 0, ""-1"": 0, ""laugh"": 0, ""hooray"": 0, ""confused"": 0, ""heart"": 0, ""rocket"": 0, ""eyes"": 0}",1551694938, https://github.com/simonw/datasette/pull/1999#issuecomment-1460970807,https://api.github.com/repos/simonw/datasette/issues/1999,1460970807,IC_kwDOBm6k_c5XFKU3,9599,2023-03-08T22:31:49Z,2023-03-08T22:33:03Z,OWNER,"For the HTML version, I need to decide where all of the stuff that happens in `async def extra_template()` is going to live. I think it's another one of those extra functions, triggered for `?_extra=context`. https://github.com/simonw/datasette/blob/96e94f9b7b2db53865e61390bcce6761727f26d8/datasette/views/table.py#L813-L912","{""total_count"": 0, ""+1"": 0, ""-1"": 0, ""laugh"": 0, ""hooray"": 0, ""confused"": 0, ""heart"": 0, ""rocket"": 0, ""eyes"": 0}",1551694938, https://github.com/simonw/datasette/pull/1999#issuecomment-1460943097,https://api.github.com/repos/simonw/datasette/issues/1999,1460943097,IC_kwDOBm6k_c5XFDj5,9599,2023-03-08T22:09:24Z,2023-03-08T22:09:47Z,OWNER,"The ease with which I added that `?_extra=query` feature in https://github.com/simonw/datasette/pull/1999/commits/96e94f9b7b2db53865e61390bcce6761727f26d8 made me feel really confident that this architecture is going in the right direction. ```diff diff --git a/datasette/views/table.py b/datasette/views/table.py index 8d3bb2c930..3e1db9c85f 100644 --- a/datasette/views/table.py +++ b/datasette/views/table.py @@ -1913,6 +1913,13 @@ async def extra_request(): ""args"": request.args._data, } + async def extra_query(): + ""Details of the underlying SQL query"" + return { + ""sql"": sql, + ""params"": params, + } + async def extra_extras(): ""Available ?_extra= blocks"" return { @@ -1938,6 +1945,7 @@ async def extra_extras(): extra_primary_keys, extra_debug, extra_request, + extra_query, extra_extras, ) ```","{""total_count"": 0, ""+1"": 0, ""-1"": 0, ""laugh"": 0, ""hooray"": 0, ""confused"": 0, ""heart"": 0, ""rocket"": 0, ""eyes"": 0}",1551694938, https://github.com/simonw/datasette/pull/1999#issuecomment-1460916405,https://api.github.com/repos/simonw/datasette/issues/1999,1460916405,IC_kwDOBm6k_c5XE9C1,9599,2023-03-08T21:43:27Z,2023-03-08T21:43:27Z,OWNER,"Just noticed that `_json=colname` is not working, and that's because it's handled by the renderer here: https://github.com/simonw/datasette/blob/56b0758a5fbf85d01ff80a40c9b028469d7bb65f/datasette/renderer.py#L29-L40 But that's not currently being called by my new code.","{""total_count"": 0, ""+1"": 0, ""-1"": 0, ""laugh"": 0, ""hooray"": 0, ""confused"": 0, ""heart"": 0, ""rocket"": 0, ""eyes"": 0}",1551694938, https://github.com/simonw/datasette/pull/1999#issuecomment-1460907148,https://api.github.com/repos/simonw/datasette/issues/1999,1460907148,IC_kwDOBm6k_c5XE6yM,9599,2023-03-08T21:34:30Z,2023-03-08T21:34:30Z,OWNER,"I'm going to hold off on that refactor until later, when I have tests to show me if the refactor works or not.","{""total_count"": 0, ""+1"": 0, ""-1"": 0, ""laugh"": 0, ""hooray"": 0, ""confused"": 0, ""heart"": 0, ""rocket"": 0, ""eyes"": 0}",1551694938, https://github.com/simonw/datasette/pull/1999#issuecomment-1460906741,https://api.github.com/repos/simonw/datasette/issues/1999,1460906741,IC_kwDOBm6k_c5XE6r1,9599,2023-03-08T21:34:08Z,2023-03-08T21:34:08Z,OWNER,"So maybe I can refactor it to look a bit more like this: https://github.com/simonw/datasette/blob/db1a88f4e17a1f50bdaa681e8beddb2276503e7c/datasette/views/table.py#L1602-L1604 One thing that's useful here is that `is_view` is handled early, like this: https://github.com/simonw/datasette/blob/db1a88f4e17a1f50bdaa681e8beddb2276503e7c/datasette/views/table.py#L466-L472 So if I omit the `is_view` bit from the extracted function I can simplify more.","{""total_count"": 0, ""+1"": 0, ""-1"": 0, ""laugh"": 0, ""hooray"": 0, ""confused"": 0, ""heart"": 0, ""rocket"": 0, ""eyes"": 0}",1551694938, https://github.com/simonw/datasette/pull/1999#issuecomment-1460905469,https://api.github.com/repos/simonw/datasette/issues/1999,1460905469,IC_kwDOBm6k_c5XE6X9,9599,2023-03-08T21:32:56Z,2023-03-08T21:32:56Z,OWNER,"I'd really like to extract this ugly logic out into a helper function: https://github.com/simonw/datasette/blob/db1a88f4e17a1f50bdaa681e8beddb2276503e7c/datasette/views/table.py#L1617-L1684 I copied it in and asked ChatGPT to ""List all of the variable that are either modified or assigned to by the above code"": > Modified variables: > > offset > where_clauses > params > order_by > > Assigned variables: > > sort_value > next_by_pk_clauses > order_by (when sort or sort_desc is not None) Then I asked which variables were used as inputs, and argued with it a bit about whether it should be counting functions. Eventually got to this: > My apologies for the oversight. Here are the variables needed as input by the above code, excluding any functions: > > _next > is_view > sort > sort_desc > use_rowid > pks > order_by Note that `use_rowid` is actually defined earlier in terms of two of those other variables: https://github.com/simonw/datasette/blob/db1a88f4e17a1f50bdaa681e8beddb2276503e7c/datasette/views/table.py#L1540","{""total_count"": 0, ""+1"": 0, ""-1"": 0, ""laugh"": 0, ""hooray"": 0, ""confused"": 0, ""heart"": 0, ""rocket"": 0, ""eyes"": 0}",1551694938, https://github.com/simonw/datasette/pull/1999#issuecomment-1460760116,https://api.github.com/repos/simonw/datasette/issues/1999,1460760116,IC_kwDOBm6k_c5XEW40,9599,2023-03-08T19:48:52Z,2023-03-08T19:48:52Z,OWNER,"I'm trying to get `http://127.0.0.1:8001/fixtures/compound_three_primary_keys?_next=a,d,v` to return the correct results.","{""total_count"": 0, ""+1"": 0, ""-1"": 0, ""laugh"": 0, ""hooray"": 0, ""confused"": 0, ""heart"": 0, ""rocket"": 0, ""eyes"": 0}",1551694938,