#25064: Join.as_sql() emits invalid SQL if get_joining_columns() returns an empty tuple -------------------------------------+------------------------------------- Reporter: AlexHill | Owner: nobody Type: Bug | Status: new Component: Database layer | Version: 1.8 (models, ORM) | Severity: Normal | Resolution: Keywords: | Triage Stage: | Unreviewed Has patch: 0 | Needs documentation: 0 Needs tests: 0 | Patch needs improvement: 0 Easy pickings: 0 | UI/UX: 0 -------------------------------------+------------------------------------- Changes (by AlexHill):
* needs_better_patch: => 0 * needs_tests: => 0 * needs_docs: => 0 Old description: > If you override `get_joining_columns()` to return an empty tuple but > provide extra conditions with `extra_join_restrictions()` , > `Join.as_sql()` creates invalid SQL. New description: `Join.as_sql()` gets its join conditions from two places: the `get_joining_columns()` and `get_extra_restrictions()`. The SQL for extra restrictions is unconditionally prefixed with `AND`, which means invalid SQL is emitted if no joining columns are specified. The fix to make the `AND` conditional is a one-liner and allows users to override the default join conditions instead of adding to them. -- -- Ticket URL: <https://code.djangoproject.com/ticket/25064#comment:1> Django <https://code.djangoproject.com/> The Web framework for perfectionists with deadlines. -- You received this message because you are subscribed to the Google Groups "Django updates" group. To unsubscribe from this group and stop receiving emails from it, send an email to django-updates+unsubscr...@googlegroups.com. To post to this group, send email to django-updates@googlegroups.com. To view this discussion on the web visit https://groups.google.com/d/msgid/django-updates/066.22559f825a78c4d1299056c3b7422cd0%40djangoproject.com. For more options, visit https://groups.google.com/d/optout.