issues: 1124731464
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| 1124731464 | I_kwDOCGYnMM5DCgpI | 399 | Make it easier to insert geometries, with documentation and maybe code | 9599 | open | 0 | 25 | 2022-02-05T00:11:26Z | 2023-05-16T03:11:52Z | OWNER | In playing with the new SpatiaLite helpers from #385 I noticed that actually populating geometry columns is still a little bit tricky. Here's what I ended up doing: ```python import httpx, sqlite_utils db = sqlite_utils.Database("/tmp/spatial.db") attractions = httpx.get("https://latest.datasette.io/fixtures/roadside_attractions.json?_shape=array").json() db["attractions"].insert_all(attractions, pk="pk") # Schema of that table is now: # CREATE TABLE [attractions] ( # [pk] INTEGER PRIMARY KEY, # [name] TEXT, # [address] TEXT, # [latitude] FLOAT, # [longitude] FLOAT # ) db.init_spatialite() db["attractions"].add_geometry_column("point", "POINT") db.execute(""" update attractions set point = GeomFromText( 'POINT(' || longitude || ' ' || latitude || ')', 4326 ) """) ``` That last line took some figuring out - especially the need for the SRID of `4326`, without which I got this error: > `IntegrityError: attractions.point violates Geometry constraint [geom-type or SRID not allowed]` It would be good to both document this in more detail, but ideally also to come up with a more obvious pattern for inserting common types of spatial data. Also related: - #398 - #79 | 140912432 | issue | {"url": "https://api.github.com/repos/simonw/sqlite-utils/issues/399/reactions", "total_count": 0, "+1": 0, "-1": 0, "laugh": 0, "hooray": 0, "confused": 0, "heart": 0, "rocket": 0, "eyes": 0} |