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1460618433 https://github.com/simonw/datasette/issues/2035#issuecomment-1460618433 https://api.github.com/repos/simonw/datasette/issues/2035 IC_kwDOBm6k_c5XD0TB simonw 9599 2023-03-08T18:06:34Z 2023-03-08T18:06:34Z OWNER One way to do this would be to dynamically generate the `where id in (?, ?, ?)` with the correct number of question marks, then feed in a list from `request.args.getlist("id")` - but that would require rewriting the SQL query text to add those question marks. {"total_count": 0, "+1": 0, "-1": 0, "laugh": 0, "hooray": 0, "confused": 0, "heart": 0, "rocket": 0, "eyes": 0} Potential feature: special support for `?a=1&a=2` on the query page 1615692818  
1460621871 https://github.com/simonw/datasette/issues/2035#issuecomment-1460621871 https://api.github.com/repos/simonw/datasette/issues/2035 IC_kwDOBm6k_c5XD1Iv simonw 9599 2023-03-08T18:08:25Z 2023-03-08T18:09:04Z OWNER My current preferred solution is to lean into SQLite's JSON support. What if the query page spotted `?id=11&id=32&id=62` and turned that into a JSON string called `:id:` with a value of `["11", "32", "62"]`? Note that this is still a string, not a list. This avoids a nasty problem that occurred in PHP world, where `?id[]=1&id[]=2` would result in an actual PHP array object, which often broke underlying code that had expected `$_GET["id"]` to be a string, not an array. So in a query you'd be able to do this: where id in (select value from json_each(:id)) And then call it with `?id=11&id=32&id=62`. {"total_count": 0, "+1": 0, "-1": 0, "laugh": 0, "hooray": 0, "confused": 0, "heart": 0, "rocket": 0, "eyes": 0} Potential feature: special support for `?a=1&a=2` on the query page 1615692818  
1460628199 https://github.com/simonw/datasette/issues/2035#issuecomment-1460628199 https://api.github.com/repos/simonw/datasette/issues/2035 IC_kwDOBm6k_c5XD2rn simonw 9599 2023-03-08T18:11:31Z 2023-03-08T18:11:31Z OWNER One variant on this idea: maybe you have to specify in your query that you want it to be the JSON list version, not the single item (first `?id=` parameter version)? Maybe with syntax like this: where id in (select value from json_each(:id__list)) Datasette would automatically pass `{"id": "11", "id__list": '["11", "32", "62"]'}` as arguments to the `db.execute()` method, if the page was called with `?id=11&id=32&id=62`. This is more explicit, though the syntax is a bit uglier (maybe there's a nicer design for this?). I also worry about `?id__list=` conflicting with this, but I think that's a risk I can take - tell people not to do that, or even block `?id__list=` style parameters entirely. {"total_count": 0, "+1": 0, "-1": 0, "laugh": 0, "hooray": 0, "confused": 0, "heart": 0, "rocket": 0, "eyes": 0} Potential feature: special support for `?a=1&a=2` on the query page 1615692818  
1460632758 https://github.com/simonw/datasette/issues/2035#issuecomment-1460632758 https://api.github.com/repos/simonw/datasette/issues/2035 IC_kwDOBm6k_c5XD3y2 simonw 9599 2023-03-08T18:13:49Z 2023-03-08T18:13:49Z OWNER https://github.com/rclement/datasette-dashboards/issues/54 makes the excellent point that the `<select multiple>` default HTML widget produces this exact format of query string: ```html <form action="https://www.example.com/"> <select multiple name="id"> <option>21</option> <option>32</option> <option>15</option> <option>63</option> </select> <input type="submit"> </form> ``` Submitting that form with the middle two options selected navigates to: `https://www.example.com/?id=32&id=15` {"total_count": 0, "+1": 0, "-1": 0, "laugh": 0, "hooray": 0, "confused": 0, "heart": 0, "rocket": 0, "eyes": 0} Potential feature: special support for `?a=1&a=2` on the query page 1615692818  
1460637906 https://github.com/simonw/datasette/issues/2035#issuecomment-1460637906 https://api.github.com/repos/simonw/datasette/issues/2035 IC_kwDOBm6k_c5XD5DS simonw 9599 2023-03-08T18:16:31Z 2023-03-08T18:16:31Z OWNER I'm pretty sold on this as a feature now. The main question I have is which of these options to implement: 1. `?id=1&?id=2` results in `:id` in the query being `["1", "2"]` - no additional syntax required 2. `:id` in the query continues to reference just the first of those parameters - but `:id__list` (or some other custom syntax) instead gets `["1", "2"]` - or, if the URL is `?id=1` - gets `["1"]` Actually on writing these out I realize that option 2 is the ONLY valid option. It's no good building a query that works against a JSON list if the user might pass just a single ID, `?id=1`, resulting in their query breaking. {"total_count": 0, "+1": 0, "-1": 0, "laugh": 0, "hooray": 0, "confused": 0, "heart": 0, "rocket": 0, "eyes": 0} Potential feature: special support for `?a=1&a=2` on the query page 1615692818  
1460639749 https://github.com/simonw/datasette/issues/2035#issuecomment-1460639749 https://api.github.com/repos/simonw/datasette/issues/2035 IC_kwDOBm6k_c5XD5gF simonw 9599 2023-03-08T18:17:31Z 2023-03-08T18:17:31Z OWNER Since we are pre-1.0 it's still OK to implement a feature that disallows `?id__list=` in the URL, but allows `:id__list` in SQL queries to reference the JSON list of parameters. So I'm going to prototype this as the `:id__list` feature and see how it feels. {"total_count": 0, "+1": 0, "-1": 0, "laugh": 0, "hooray": 0, "confused": 0, "heart": 0, "rocket": 0, "eyes": 0} Potential feature: special support for `?a=1&a=2` on the query page 1615692818  
1460654136 https://github.com/simonw/datasette/issues/2035#issuecomment-1460654136 https://api.github.com/repos/simonw/datasette/issues/2035 IC_kwDOBm6k_c5XD9A4 simonw 9599 2023-03-08T18:25:46Z 2023-03-08T18:25:46Z OWNER Trickiest part of the implementation here is that it needs to know to output three `id` HTML form fields on the page, such that their values are persisted when the form is submitted a second time. {"total_count": 0, "+1": 0, "-1": 0, "laugh": 0, "hooray": 0, "confused": 0, "heart": 0, "rocket": 0, "eyes": 0} Potential feature: special support for `?a=1&a=2` on the query page 1615692818  
1460659382 https://github.com/simonw/datasette/issues/2035#issuecomment-1460659382 https://api.github.com/repos/simonw/datasette/issues/2035 IC_kwDOBm6k_c5XD-S2 simonw 9599 2023-03-08T18:28:00Z 2023-03-08T18:28:00Z OWNER Also: `datasette-explain` may need to be updated to understand how to handle this: `ERROR: conn=<sqlite3.Connection object at 0x102834940>, sql = 'explain select * from releases where id in (select id from json_each(:id__list))', params = None: You did not supply a value for binding parameter :id__list.` {"total_count": 0, "+1": 0, "-1": 0, "laugh": 0, "hooray": 0, "confused": 0, "heart": 0, "rocket": 0, "eyes": 0} Potential feature: special support for `?a=1&a=2` on the query page 1615692818  
1460664619 https://github.com/simonw/datasette/issues/2035#issuecomment-1460664619 https://api.github.com/repos/simonw/datasette/issues/2035 IC_kwDOBm6k_c5XD_kr simonw 9599 2023-03-08T18:32:29Z 2023-03-08T18:32:29Z OWNER Got a prototype working: ```diff diff --git a/datasette/views/database.py b/datasette/views/database.py index 8d289105..6f9d8a44 100644 --- a/datasette/views/database.py +++ b/datasette/views/database.py @@ -226,6 +226,12 @@ class QueryView(DataView): ): db = await self.ds.resolve_database(request) database = db.name + # Disallow x__list query string parameters + invalid_params = [k for k in request.args if k.endswith("__list")] + if invalid_params: + raise DatasetteError( + "Invalid query string parameters: {}".format(", ".join(invalid_params)) + ) params = {key: request.args.get(key) for key in request.args} if "sql" in params: params.pop("sql") @@ -258,6 +264,11 @@ class QueryView(DataView): for named_parameter in named_parameters if not named_parameter.startswith("_") } + # Handle any __list parameters + for named_parameter in named_parameters: + if named_parameter.endswith("__list"): + list_values = request.args.getlist(named_parameter[:-6]) + params[named_parameter] = json.dumps(list_values) # Set to blank string if missing from params for named_parameter in named_parameters: ``` This isn't yet doing the right thing on form re-submission: it breaks because it attempts to pass through the `?id__list=` invalid parameter. But I did manage to get it to do this through careful editing of the URL: <img width="1226" alt="image" src="https://user-images.githubusercontent.com/9599/223803758-2a1f90bd-bc20-4a77-bdce-4644afe235ba.png"> That was this URL: `http://127.0.0.1:8034/content?sql=select+%3Aid__list%2C*+from+releases+where+id+in+(select+value+from+json_each(%3Aid__list))&id=62642726&id=18402901&id=38714866` {"total_count": 0, "+1": 0, "-1": 0, "laugh": 0, "hooray": 0, "confused": 0, "heart": 0, "rocket": 0, "eyes": 0} Potential feature: special support for `?a=1&a=2` on the query page 1615692818  
1460668431 https://github.com/simonw/datasette/issues/2035#issuecomment-1460668431 https://api.github.com/repos/simonw/datasette/issues/2035 IC_kwDOBm6k_c5XEAgP simonw 9599 2023-03-08T18:35:34Z 2023-03-08T18:35:34Z OWNER To implement this properly need to do the following: - Get the page to display multiple `id: [ text input here ]` fields such that re-submission works - Figure out how this should work for canned queries and for writable canned queries - Tests that cover queries, canned queries, writable canned queries And a bonus feature: what if the Datasette UI layer spotted `:id__list` parameters and used them to add a bit of JavaScript that allowed users to click a `+` button next to an `id` form field to add another one? Also, when a page is re-displayed for on of these queries it could potentially add an extra form field allowing people to add another value. Though this has an annoying problem: how to tell the difference between an additional `id` input field that the user chose not to populate, v.s. one that is supposed to represent an empty string? Maybe only support multiple `id` fields for users with JavaScript in order to avoid this problem. {"total_count": 0, "+1": 0, "-1": 0, "laugh": 0, "hooray": 0, "confused": 0, "heart": 0, "rocket": 0, "eyes": 0} Potential feature: special support for `?a=1&a=2` on the query page 1615692818  
1460679434 https://github.com/simonw/datasette/issues/2035#issuecomment-1460679434 https://api.github.com/repos/simonw/datasette/issues/2035 IC_kwDOBm6k_c5XEDMK simonw 9599 2023-03-08T18:39:35Z 2023-03-08T18:39:35Z OWNER I should consider the existing design of magic parameters here: https://docs.datasette.io/en/stable/sql_queries.html#magic-parameters - `_actor_*` - `_header_*` - `_cookie_` - `_now_epoch` - `_now_date_utc` - `_now_datetime_utc` - `_random_chars_*` Should this new `id__list` syntax look more like those magic parameters, or is it OK to use `name__magic` syntax here instead? {"total_count": 0, "+1": 0, "-1": 0, "laugh": 0, "hooray": 0, "confused": 0, "heart": 0, "rocket": 0, "eyes": 0} Potential feature: special support for `?a=1&a=2` on the query page 1615692818  
1460682625 https://github.com/simonw/datasette/issues/2035#issuecomment-1460682625 https://api.github.com/repos/simonw/datasette/issues/2035 IC_kwDOBm6k_c5XED-B simonw 9599 2023-03-08T18:40:57Z 2023-03-08T18:40:57Z OWNER Pushed that prototype to a branch: https://github.com/simonw/datasette/commit/0fe844e9adb006a0138e83102ced1329d9155c59 / https://github.com/simonw/datasette/compare/sql-list-parameters {"total_count": 0, "+1": 0, "-1": 0, "laugh": 0, "hooray": 0, "confused": 0, "heart": 0, "rocket": 0, "eyes": 0} Potential feature: special support for `?a=1&a=2` on the query page 1615692818  
1460808028 https://github.com/simonw/datasette/issues/2035#issuecomment-1460808028 https://api.github.com/repos/simonw/datasette/issues/2035 IC_kwDOBm6k_c5XEilc ar-jan 1176293 2023-03-08T20:14:47Z 2023-03-08T20:14:47Z NONE +1, I have been wishing for this feature (also for use with template-sql). It was requested before here #1304. {"total_count": 0, "+1": 0, "-1": 0, "laugh": 0, "hooray": 0, "confused": 0, "heart": 0, "rocket": 0, "eyes": 0} Potential feature: special support for `?a=1&a=2` on the query page 1615692818  
1492206593 https://github.com/simonw/datasette/issues/2035#issuecomment-1492206593 https://api.github.com/repos/simonw/datasette/issues/2035 IC_kwDOBm6k_c5Y8UQB simonw 9599 2023-03-31T16:09:08Z 2023-03-31T16:09:08Z OWNER I could ship this as part of: - #2049 {"total_count": 0, "+1": 0, "-1": 0, "laugh": 0, "hooray": 0, "confused": 0, "heart": 0, "rocket": 0, "eyes": 0} Potential feature: special support for `?a=1&a=2` on the query page 1615692818  

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