#25172: System check is failing on multi-database setup with different backends -------------------------------------+------------------------------------- Reporter: delinhabit | Owner: nobody Type: Uncategorized | Status: new Component: Core (System | Version: 1.7 checks) | Keywords: system-checks multi- Severity: Normal | database Triage Stage: Unreviewed | Has patch: 0 Easy pickings: 0 | UI/UX: 0 -------------------------------------+------------------------------------- We have the following database set-up: * the default database is MySQL * two additional databases are PostGIS
The system check framework (either `manage.py check` or `manage.py runserver`) is using the default database (mysql) to validate `django.contrib.gis.db.models.Model`-based models, and the commands are blowing up with the following error: AttributeError: 'DatabaseOperations' object has no attribute 'geo_db_type'. We set-up database routers for the PostGIS models to use the proper connection, but the check framework seems to ignore them. You can find the detailed stack trace here: https://gist.github.com/delinhabit/587d6f26afb4bbc559cb The discussion that led to this ticket: https://groups.google.com/forum/#!msg/django- developers/_QUT4hV43YE/b-1eTcv_5yUJ I can try to create a PR, though I'm not sure where to start. Specifically my questions are: * What tests case file should I extend with a regression tests? The `tests/multiple_database` doesn't test any system checks at all. `tests/system_check` could be a candidate but I need a multiple database set-up and it doesn't feel right to change that test app. Should I better create a new test app for this use case? * I think `Field._check_backend_specific_checks` should be the place, only that at that point it already uses connection and I'm not sure how can I detect what connection should I use from the field instance (or the associated model). Should I run the Database routing code to get the connection alias? (seems a little gross to me) Any feedback appreciated. Thanks, Ion -- Ticket URL: <https://code.djangoproject.com/ticket/25172> 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/053.d0af47d621ed94052266224040117b5a%40djangoproject.com. For more options, visit https://groups.google.com/d/optout.