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/issues/1715#issuecomment-1112711115,https://api.github.com/repos/simonw/datasette/issues/1715,1112711115,IC_kwDOBm6k_c5CUp_L,9599,2022-04-28T22:26:56Z,2022-04-28T22:26:56Z,OWNER,"I'm not going to use `asyncinject` in this refactor - at least not until I really need it. My research in these issues has put me off the idea ( in favour of `asyncio.gather()` or even not trying for parallel execution at all): - #1727","{""total_count"": 0, ""+1"": 0, ""-1"": 0, ""laugh"": 0, ""hooray"": 0, ""confused"": 0, ""heart"": 0, ""rocket"": 0, ""eyes"": 0}",1212823665, https://github.com/simonw/datasette/issues/1715#issuecomment-1110265087,https://api.github.com/repos/simonw/datasette/issues/1715,1110265087,IC_kwDOBm6k_c5CLUz_,9599,2022-04-26T21:26:17Z,2022-04-26T21:26:17Z,OWNER,"Running facets and facet suggestions in parallel using `asyncio.gather()` turns out to be a lot less hassle than I had thought - maybe I don't need `asyncinject` for this at all? ```diff if not nofacet: - for facet in facet_instances: - ( - instance_facet_results, - instance_facets_timed_out, - ) = await facet.facet_results() + # Run them in parallel + facet_awaitables = [facet.facet_results() for facet in facet_instances] + facet_awaitable_results = await asyncio.gather(*facet_awaitables) + for ( + instance_facet_results, + instance_facets_timed_out, + ) in facet_awaitable_results: for facet_info in instance_facet_results: base_key = facet_info[""name""] key = base_key @@ -522,8 +540,10 @@ class TableView(DataView): and not nofacet and not nosuggest ): - for facet in facet_instances: - suggested_facets.extend(await facet.suggest()) + # Run them in parallel + facet_suggest_awaitables = [facet.suggest() for facet in facet_instances] + for suggest_result in await asyncio.gather(*facet_suggest_awaitables): + suggested_facets.extend(suggest_result) ```","{""total_count"": 0, ""+1"": 0, ""-1"": 0, ""laugh"": 0, ""hooray"": 0, ""confused"": 0, ""heart"": 0, ""rocket"": 0, ""eyes"": 0}",1212823665, https://github.com/simonw/datasette/issues/1715#issuecomment-1110246593,https://api.github.com/repos/simonw/datasette/issues/1715,1110246593,IC_kwDOBm6k_c5CLQTB,9599,2022-04-26T21:03:56Z,2022-04-26T21:03:56Z,OWNER,"Well this is fun... I applied this change: ```diff diff --git a/datasette/views/table.py b/datasette/views/table.py index d66adb8..85f9e44 100644 --- a/datasette/views/table.py +++ b/datasette/views/table.py @@ -1,3 +1,4 @@ +import asyncio import itertools import json @@ -5,6 +6,7 @@ import markupsafe from datasette.plugins import pm from datasette.database import QueryInterrupted +from datasette import tracer from datasette.utils import ( await_me_maybe, CustomRow, @@ -174,8 +176,11 @@ class TableView(DataView): write=bool(canned_query.get(""write"")), ) - is_view = bool(await db.get_view_definition(table_name)) - table_exists = bool(await db.table_exists(table_name)) + with tracer.trace_child_tasks(): + is_view, table_exists = map(bool, await asyncio.gather( + db.get_view_definition(table_name), + db.table_exists(table_name) + )) # If table or view not found, return 404 if not is_view and not table_exists: ``` And now using https://datasette.io/plugins/datasette-pretty-traces I get this: ![CleanShot 2022-04-26 at 14 03 33@2x](https://user-images.githubusercontent.com/9599/165392009-84c4399d-3e94-46d4-ba7b-a64a116cac5c.png) ","{""total_count"": 0, ""+1"": 0, ""-1"": 0, ""laugh"": 0, ""hooray"": 0, ""confused"": 0, ""heart"": 0, ""rocket"": 0, ""eyes"": 0}",1212823665, https://github.com/simonw/datasette/issues/1715#issuecomment-1110219185,https://api.github.com/repos/simonw/datasette/issues/1715,1110219185,IC_kwDOBm6k_c5CLJmx,9599,2022-04-26T20:28:40Z,2022-04-26T20:56:48Z,OWNER,"The refactor I did in #1719 pretty much clashes with all of the changes in https://github.com/simonw/datasette/commit/5053f1ea83194ecb0a5693ad5dada5b25bf0f7e6 so I'll probably need to start my `api-extras` branch again from scratch. Using a new `tableview-asyncinject` branch.","{""total_count"": 0, ""+1"": 0, ""-1"": 0, ""laugh"": 0, ""hooray"": 0, ""confused"": 0, ""heart"": 0, ""rocket"": 0, ""eyes"": 0}",1212823665, https://github.com/simonw/datasette/issues/1715#issuecomment-1110239536,https://api.github.com/repos/simonw/datasette/issues/1715,1110239536,IC_kwDOBm6k_c5CLOkw,9599,2022-04-26T20:54:53Z,2022-04-26T20:54:53Z,OWNER,`pytest tests/test_table_*` runs the tests quickly.,"{""total_count"": 0, ""+1"": 0, ""-1"": 0, ""laugh"": 0, ""hooray"": 0, ""confused"": 0, ""heart"": 0, ""rocket"": 0, ""eyes"": 0}",1212823665, https://github.com/simonw/datasette/issues/1715#issuecomment-1110238896,https://api.github.com/repos/simonw/datasette/issues/1715,1110238896,IC_kwDOBm6k_c5CLOaw,9599,2022-04-26T20:53:59Z,2022-04-26T20:53:59Z,OWNER,I'm going to rename `database` to `database_name` and `table` to `table_name` to avoid confusion with the `Database` object as opposed to the string name for the database.,"{""total_count"": 0, ""+1"": 0, ""-1"": 0, ""laugh"": 0, ""hooray"": 0, ""confused"": 0, ""heart"": 0, ""rocket"": 0, ""eyes"": 0}",1212823665, https://github.com/simonw/datasette/issues/1715#issuecomment-1110229319,https://api.github.com/repos/simonw/datasette/issues/1715,1110229319,IC_kwDOBm6k_c5CLMFH,9599,2022-04-26T20:41:32Z,2022-04-26T20:44:38Z,OWNER,"This time I'm not going to bother with the `filter_args` thing - I'm going to just try to use `asyncinject` to execute some big high level things in parallel - facets, suggested facets, counts, the query - and then combine it with the `extras` mechanism I'm trying to introduce too. Most importantly: I want that `extra_template()` function that adds more template context for the HTML to be executed as part of an `asyncinject` flow!","{""total_count"": 0, ""+1"": 0, ""-1"": 0, ""laugh"": 0, ""hooray"": 0, ""confused"": 0, ""heart"": 0, ""rocket"": 0, ""eyes"": 0}",1212823665, https://github.com/simonw/datasette/issues/1715#issuecomment-1108875068,https://api.github.com/repos/simonw/datasette/issues/1715,1108875068,IC_kwDOBm6k_c5CGBc8,9599,2022-04-25T18:03:13Z,2022-04-25T18:06:33Z,OWNER,"The `RowTableShared` class is making this a whole lot more complicated. I'm going to split the `RowView` view out into an entirely separate `views/row.py` module.","{""total_count"": 0, ""+1"": 0, ""-1"": 0, ""laugh"": 0, ""hooray"": 0, ""confused"": 0, ""heart"": 0, ""rocket"": 0, ""eyes"": 0}",1212823665, https://github.com/simonw/datasette/issues/1715#issuecomment-1108877454,https://api.github.com/repos/simonw/datasette/issues/1715,1108877454,IC_kwDOBm6k_c5CGCCO,9599,2022-04-25T18:04:27Z,2022-04-25T18:04:27Z,OWNER,Pushed my WIP on this to the `api-extras` branch: 5053f1ea83194ecb0a5693ad5dada5b25bf0f7e6,"{""total_count"": 0, ""+1"": 0, ""-1"": 0, ""laugh"": 0, ""hooray"": 0, ""confused"": 0, ""heart"": 0, ""rocket"": 0, ""eyes"": 0}",1212823665, https://github.com/simonw/datasette/issues/1715#issuecomment-1106989581,https://api.github.com/repos/simonw/datasette/issues/1715,1106989581,IC_kwDOBm6k_c5B-1IN,9599,2022-04-22T23:03:29Z,2022-04-22T23:03:29Z,OWNER,I'm having second thoughts about injecting `request` - might be better to have the view function pull the relevant pieces out of the request before triggering the rest of the resolution.,"{""total_count"": 0, ""+1"": 0, ""-1"": 0, ""laugh"": 0, ""hooray"": 0, ""confused"": 0, ""heart"": 0, ""rocket"": 0, ""eyes"": 0}",1212823665, https://github.com/simonw/datasette/issues/1715#issuecomment-1106947168,https://api.github.com/repos/simonw/datasette/issues/1715,1106947168,IC_kwDOBm6k_c5B-qxg,9599,2022-04-22T22:25:57Z,2022-04-22T22:26:06Z,OWNER,"```python async def database(request: Request, datasette: Datasette) -> Database: database_route = tilde_decode(request.url_vars[""database""]) try: return datasette.get_database(route=database_route) except KeyError: raise NotFound(""Database not found: {}"".format(database_route)) async def table_name(request: Request) -> str: return tilde_decode(request.url_vars[""table""]) ```","{""total_count"": 0, ""+1"": 0, ""-1"": 0, ""laugh"": 0, ""hooray"": 0, ""confused"": 0, ""heart"": 0, ""rocket"": 0, ""eyes"": 0}",1212823665, https://github.com/simonw/datasette/issues/1715#issuecomment-1106945876,https://api.github.com/repos/simonw/datasette/issues/1715,1106945876,IC_kwDOBm6k_c5B-qdU,9599,2022-04-22T22:24:29Z,2022-04-22T22:24:29Z,OWNER,"Looking at the start of `TableView.data()`: https://github.com/simonw/datasette/blob/d57c347f35bcd8cff15f913da851b4b8eb030867/datasette/views/table.py#L333-L346 I'm going to resolve `table_name` and `database` from the URL - `table_name` will be a string, `database` will be the DB object returned by `datasette.get_database()`. Then those can be passed in separately too.","{""total_count"": 0, ""+1"": 0, ""-1"": 0, ""laugh"": 0, ""hooray"": 0, ""confused"": 0, ""heart"": 0, ""rocket"": 0, ""eyes"": 0}",1212823665, https://github.com/simonw/datasette/issues/1715#issuecomment-1106908642,https://api.github.com/repos/simonw/datasette/issues/1715,1106908642,IC_kwDOBm6k_c5B-hXi,9599,2022-04-22T21:47:55Z,2022-04-22T21:47:55Z,OWNER,"I need a `asyncio.Registry` with functions registered to perform the role of the table view. Something like this perhaps: ```python def table_html_context(facet_results, query, datasette, rows): return {...} ``` That then gets called like this: ```python async def view(request): registry = Registry(facet_results, query, datasette, rows) context = await registry.resolve(table_html, request=request, datasette=datasette) return Reponse.html(await datasette.render(""table.html"", context) ``` It's also interesting to start thinking about this from a Python client library point of view. If I'm writing code outside of the HTTP request cycle, what would it look like? One thing I could do: break out is the code that turns a request into a list of pairs extracted from the request - this code here: https://github.com/simonw/datasette/blob/8338c66a57502ef27c3d7afb2527fbc0663b2570/datasette/views/table.py#L442-L449 I could turn that into a typed dependency injection function like this: ```python def filter_args(request: Request) -> List[Tuple[str, str]]: # Arguments that start with _ and don't contain a __ are # special - things like ?_search= - and should not be # treated as filters. filter_args = [] for key in request.args: if not (key.startswith(""_"") and ""__"" not in key): for v in request.args.getlist(key): filter_args.append((key, v)) return filter_args ``` Then I can either pass a `request` into a `.resolve()` call, or I can instead skip that function by passing: ```python output = registry.resolve(table_context, filter_args=[(""foo"", ""bar"")]) ``` I do need to think about where plugins get executed in all of this.","{""total_count"": 0, ""+1"": 0, ""-1"": 0, ""laugh"": 0, ""hooray"": 0, ""confused"": 0, ""heart"": 0, ""rocket"": 0, ""eyes"": 0}",1212823665,