#15130: Model.validate_unique method is not considered with multi-db
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Reporter: t2y | Status: new
Milestone: 1.3 | Component: ORM aggregation
Version: 1.2 | Keywords: multi-db
Stage: Unreviewed | Has_patch: 1
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Model.validate_unique() method has 2 methods, _perform_unique_checks() and
_perform_date_checks(), which use _default_manager for queryset. But, they
are not considered with multi-db, that queryset is as follows.
{{{
qs = model_class._default_manager.filter(**lookup_kwargs)
}}}
I encountered a problem when ModelForm.is_valid() method is called since
BaseModelForm calls full_clean() -> post_clean() -> validate_unique(). I
could add/change/delete data with multi-db in AdminSite by setting
arbitrary database with "using" keyword. However, the validation
uniqueness check is invalid if default database has the same data.
# see also[[BR]]
http://docs.djangoproject.com/en/dev/topics/forms/modelforms/#the-is-
valid-method-and-errors [[BR]]
http://docs.djangoproject.com/en/dev/ref/models/instances/#validating-
objects
I only tested default table operation in AdminSite applying attached
patch.[[BR]]
It works for me.
--
Ticket URL: <http://code.djangoproject.com/ticket/15130>
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