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Refs #25550 -- Corrected deprecation message for assigning M2M relations.
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@ -509,6 +509,12 @@ class ReverseManyToOneDescriptor(object):
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return self.related_manager_cls(instance)
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return self.related_manager_cls(instance)
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def _get_set_deprecation_msg_params(self):
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return ( # RemovedInDjango20Warning
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'reverse side of a related set',
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self.rel.get_accessor_name(),
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)
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def __set__(self, instance, value):
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def __set__(self, instance, value):
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"""
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"""
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Set the related objects through the reverse relation.
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Set the related objects through the reverse relation.
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@ -520,9 +526,9 @@ class ReverseManyToOneDescriptor(object):
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- ``value`` is the ``children`` sequence on the right of the equal sign
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- ``value`` is the ``children`` sequence on the right of the equal sign
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"""
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"""
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warnings.warn(
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warnings.warn(
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'Direct assignment to the reverse side of a related set is '
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'Direct assignment to the %s is deprecated due to the implicit '
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'deprecated due to the implicit save() that happens. Use %s.set() '
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'save() that happens. Use %s.set() instead.' % self._get_set_deprecation_msg_params(),
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'instead.' % self.rel.get_accessor_name(), RemovedInDjango20Warning, stacklevel=2,
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RemovedInDjango20Warning, stacklevel=2,
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)
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)
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manager = self.__get__(instance)
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manager = self.__get__(instance)
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manager.set(value)
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manager.set(value)
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@ -757,6 +763,12 @@ class ManyToManyDescriptor(ReverseManyToOneDescriptor):
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reverse=self.reverse,
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reverse=self.reverse,
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)
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)
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def _get_set_deprecation_msg_params(self):
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return ( # RemovedInDjango20Warning
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'%s side of a many-to-many set' % ('reverse' if self.reverse else 'forward'),
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self.rel.get_accessor_name() if self.reverse else self.field.name,
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)
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def create_forward_many_to_many_manager(superclass, rel, reverse):
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def create_forward_many_to_many_manager(superclass, rel, reverse):
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"""
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"""
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@ -400,15 +400,24 @@ class ManyToManyTests(TestCase):
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self.a4.publications.set([], clear=True)
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self.a4.publications.set([], clear=True)
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self.assertQuerysetEqual(self.a4.publications.all(), [])
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self.assertQuerysetEqual(self.a4.publications.all(), [])
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def test_assign_deprecation(self):
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def test_assign_forward_deprecation(self):
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msg = (
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msg = (
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"Direct assignment to the reverse side of a related set is "
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"Direct assignment to the reverse side of a many-to-many set is "
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"deprecated due to the implicit save() that happens. Use "
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"deprecated due to the implicit save() that happens. Use "
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"article_set.set() instead."
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"article_set.set() instead."
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)
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)
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with self.assertRaisesMessage(RemovedInDjango20Warning, msg):
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with self.assertRaisesMessage(RemovedInDjango20Warning, msg):
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self.p2.article_set = [self.a4, self.a3]
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self.p2.article_set = [self.a4, self.a3]
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def test_assign_reverse_deprecation(self):
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msg = (
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"Direct assignment to the forward side of a many-to-many "
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"set is deprecated due to the implicit save() that happens. Use "
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"publications.set() instead."
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)
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with self.assertRaisesMessage(RemovedInDjango20Warning, msg):
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self.a1.publications = [self.p1, self.p2]
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@ignore_warnings(category=RemovedInDjango20Warning)
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@ignore_warnings(category=RemovedInDjango20Warning)
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def test_assign_deprecated(self):
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def test_assign_deprecated(self):
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self.p2.article_set = [self.a4, self.a3]
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self.p2.article_set = [self.a4, self.a3]
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