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Fixed #22207 -- Added support for GenericRelation reverse lookups

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GenericRelation now supports an optional related_query_name argument.
Setting related_query_name adds a relation from the related object back to
the content type for filtering, ordering and other query operations.

Thanks to Loic Bistuer for spotting a couple of important issues in
his review.
This commit is contained in:
Gabe Jackson 2014-03-04 12:23:32 +01:00 • committed by Anssi Kääriäinen
parent c627da0ccc
commit b77f26313c
9 changed files with 71 additions and 27 deletions
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9
django/db/models/options.py
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@ -449,9 +449,7 @@ class Options(object):
for f, model in self.get_fields_with_model():
cache[f.name] = cache[f.attname] = (f, model, True, False)
for f in self.virtual_fields:
if hasattr(f, 'related'):
cache[f.name] = cache[f.attname] = (
f.related, None if f.model == self.model else f.model, True, False)
cache[f.name] = (f, None if f.model == self.model else f.model, True, False)
if apps.ready:
self._name_map = cache
return cache
@ -530,8 +528,9 @@ class Options(object):
proxy_cache = cache.copy()
for klass in self.apps.get_models(include_auto_created=True):
if not klass._meta.swapped:
for f in klass._meta.local_fields:
if f.rel and not isinstance(f.rel.to, six.string_types) and f.generate_reverse_relation:
for f in klass._meta.local_fields + klass._meta.virtual_fields:
if (hasattr(f, 'rel') and f.rel and not isinstance(f.rel.to, six.string_types)
and f.generate_reverse_relation):
if self == f.rel.to._meta:
cache[f.related] = None
proxy_cache[f.related] = None