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Code Issues 32 Releases Wiki Activity

Fixed #27332 -- Added FilteredRelation API for conditional join (ON clause) support.

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Thanks Anssi Kääriäinen for contributing to the patch.
This commit is contained in:
Nicolas Delaby
2017-09-22 17:53:17 +02:00
committed by Tim Graham
parent 3f9d85d95c
commit 01d440fa1e
17 changed files with 916 additions and 83 deletions
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24
tests/foreign_object/models/empty_join.py
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@@ -53,15 +53,31 @@ class StartsWithRelation(models.ForeignObject):
def get_joining_columns(self, reverse_join=False):
return ()
def get_path_info(self):
def get_path_info(self, filtered_relation=None):
to_opts = self.remote_field.model._meta
from_opts = self.model._meta
return [PathInfo(from_opts, to_opts, (to_opts.pk,), self, False, False)]
return [PathInfo(
from_opts=from_opts,
to_opts=to_opts,
target_fields=(to_opts.pk,),
join_field=self,
m2m=False,
direct=False,
filtered_relation=filtered_relation,
)]
def get_reverse_path_info(self):
def get_reverse_path_info(self, filtered_relation=None):
to_opts = self.model._meta
from_opts = self.remote_field.model._meta
return [PathInfo(from_opts, to_opts, (to_opts.pk,), self.remote_field, False, False)]
return [PathInfo(
from_opts=from_opts,
to_opts=to_opts,
target_fields=(to_opts.pk,),
join_field=self.remote_field,
m2m=False,
direct=False,
filtered_relation=filtered_relation,
)]
def contribute_to_class(self, cls, name, private_only=False):
super().contribute_to_class(cls, name, private_only)