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queryset-refactor: Head off any attempts to use unique_together across inherited models.

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We don't support check constraints and triggers, so trying to do this would be
optimistic at best.


git-svn-id: http://code.djangoproject.com/svn/django/branches/queryset-refactor@7172 bcc190cf-cafb-0310-a4f2-bffc1f526a37
This commit is contained in:
Malcolm Tredinnick 2008-02-28 13:31:11 +00:00
parent a9008f8928
commit 7c54780497
2 changed files with 6 additions and 0 deletions
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2
django/core/management/validation.py
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@ -232,5 +232,7 @@ def get_validation_errors(outfile, app=None):
else: else:
if isinstance(f.rel, models.ManyToManyRel): if isinstance(f.rel, models.ManyToManyRel):
e.add(opts, '"unique_together" refers to %s. ManyToManyFields are not supported in unique_together.' % f.name) e.add(opts, '"unique_together" refers to %s. ManyToManyFields are not supported in unique_together.' % f.name)
if f not in opts.local_fields:
e.add(opts, '"unique_together" refers to %s. This is not in the same model as the unique_together statement.' % f.name)
return len(e.errors) return len(e.errors)

4
docs/model-api.txt
View File

@ -1166,6 +1166,10 @@ together. It's used in the Django admin and is enforced at the database
level (i.e., the appropriate ``UNIQUE`` statements are included in the level (i.e., the appropriate ``UNIQUE`` statements are included in the
``CREATE TABLE`` statement). ``CREATE TABLE`` statement).
All the fields specified in ``unique_together`` must be part of the current
model. If you are using `model inheritance`_, you cannot refer to fields from
any parent classes in ``unique_together``.
**New in Django development version** **New in Django development version**
For convenience, unique_together can be a single list when dealing For convenience, unique_together can be a single list when dealing