def _get_gfk_case_path_info(self, direct=False):
pathinfos = []
from_field = self.model._meta.pk
opts = self.through._meta
object_id_field = opts.get_field_by_name('object_id')[0]
linkfield = self.through._meta.get_field_by_name(self.m2m_reverse_field_name())[0]
if direct:
join1infos = [PathInfo(from_field, object_id_field, self.model._meta, opts, self, True, False)]
join2infos, opts, target, final = linkfield.get_path_info()
else:
join1infos, _, _, _ = linkfield.get_reverse_path_info()
join2infos = [PathInfo(object_id_field, from_field, opts, self.model._meta, self, True, False)]
target = from_field
final = self
opts = self.model._meta
pathinfos.extend(join1infos)
pathinfos.extend(join2infos)
return pathinfos, opts, target, final
def get_path_info(self):
from_field = self.model._meta.pk
opts = self.rel.to._meta
target = opts.get_field_by_name(self.object_id_field_name)[0]
# Note that we are using different field for the join_field
# than from_field or to_field. This is a hack, but we need the
# GenericRelation to generate the extra SQL.
return ([
PathInfo(from_field, target, self.model._meta, opts, self, True,
False)
], opts, target, self)
def _get_gfk_case_path_info(self, direct=False):
pathinfos = []
from_field = self.model._meta.pk
opts = self.through._meta
object_id_field = opts.get_field_by_name('object_id')[0]
linkfield = self.through._meta.get_field_by_name(
self.m2m_reverse_field_name())[0]
if direct:
join1infos = [
PathInfo(self.model._meta, opts, [from_field], self.rel, True,
False)
]
join2infos = linkfield.get_path_info()
else:
join1infos = linkfield.get_reverse_path_info()
join2infos = [
PathInfo(opts, self.model._meta, [object_id_field], self, True,
False)
]
pathinfos.extend(join1infos)
pathinfos.extend(join2infos)
return pathinfos
def get_reverse_path_info(self):
opts = self.model._meta
from_opts = self.rel.to._meta
return [PathInfo(from_opts, opts, (opts.pk,), self, not self.unique, False)]
def get_path_info(self):
opts = self.rel.to._meta
target = opts.get_field_by_name(self.object_id_field_name)[0]
return [PathInfo(self.model._meta, opts, (target,), self.rel, True, False)]
def get_path_info(self):
opts = self.rel.to._meta
target = opts.pk
return [
PathInfo(self.model._meta, opts, (target, ), self.rel, True, False)
]
