github
html_url | issue_url | id | node_id | user | created_at | updated_at | author_association | body | reactions | issue | performed_via_github_app |
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https://github.com/simonw/sqlite-utils/issues/594#issuecomment-1714920708 | https://api.github.com/repos/simonw/sqlite-utils/issues/594 | 1714920708 | IC_kwDOCGYnMM5mN50E | 9599 | 2023-09-12T03:51:13Z | 2023-09-12T03:51:13Z | OWNER | Changing this without breaking backwards compatibility (and forcing a 4.0 release) will be tricky, because `ForeignKey()` is a `namedtuple`: https://github.com/simonw/sqlite-utils/blob/622c3a5a7dd53a09c029e2af40c2643fe7579340/sqlite_utils/db.py#L148-L150 I could swap it out for a `dataclass` and add those extra columns, but I need to make sure that code like this still works: ```python for table, column, other_table, other_column in table.foreign_keys: # ... ``` | { "total_count": 0, "+1": 0, "-1": 0, "laugh": 0, "hooray": 0, "confused": 0, "heart": 0, "rocket": 0, "eyes": 0 } |
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https://github.com/simonw/sqlite-utils/issues/594#issuecomment-1714919806 | https://api.github.com/repos/simonw/sqlite-utils/issues/594 | 1714919806 | IC_kwDOCGYnMM5mN5l- | 9599 | 2023-09-12T03:49:41Z | 2023-09-12T03:49:41Z | OWNER | Digging in a bit more: ```pycon >>> pprint(list(db.query('PRAGMA foreign_key_list(courses)'))) [{'from': 'campus_name', 'id': 0, 'match': 'NONE', 'on_delete': 'NO ACTION', 'on_update': 'NO ACTION', 'seq': 0, 'table': 'departments', 'to': 'campus_name'}, {'from': 'dept_code', 'id': 0, 'match': 'NONE', 'on_delete': 'NO ACTION', 'on_update': 'NO ACTION', 'seq': 1, 'table': 'departments', 'to': 'dept_code'}] ``` I think the way you tell it's a compound foreign key is that both of those have the same `id` value - of `0` - but they then have two different `seq` values of `0` and `1`. Right now I ignore those columns entirely: https://github.com/simonw/sqlite-utils/blob/622c3a5a7dd53a09c029e2af40c2643fe7579340/sqlite_utils/db.py#L1523-L1540 | { "total_count": 0, "+1": 0, "-1": 0, "laugh": 0, "hooray": 0, "confused": 0, "heart": 0, "rocket": 0, "eyes": 0 } |
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