def _reversion_introspect_inline_admin(self, inline):
inline_model = None
follow_field = None
fk_name = None
if issubclass(inline, GenericInlineModelAdmin):
inline_model = inline.model
ct_field = inline.ct_field
fk_name = inline.ct_fk_field
for field in self.model._meta.virtual_fields:
if (
isinstance(field, GenericRelation) and
remote_model(field) == inline_model and
field.object_id_field_name == fk_name and
field.content_type_field_name == ct_field
):
follow_field = field.name
break
elif issubclass(inline, options.InlineModelAdmin):
inline_model = inline.model
fk_name = inline.fk_name
if not fk_name:
for field in inline_model._meta.get_fields():
if (
isinstance(field, (models.ForeignKey, models.OneToOneField)) and
issubclass(self.model, remote_model(field))
):
fk_name = field.name
break
if fk_name and not remote_field(inline_model._meta.get_field(fk_name)).is_hidden():
field = inline_model._meta.get_field(fk_name)
accessor = remote_field(field).get_accessor_name()
follow_field = accessor
return inline_model, follow_field
def has_int_pk(model):
"""Tests whether the given model has an integer primary key."""
pk = model._meta.pk
return ((isinstance(pk, (models.IntegerField, models.AutoField))
and not isinstance(pk, models.BigIntegerField))
or (isinstance(pk, models.ForeignKey)
and has_int_pk(remote_model(pk))))
def has_int_pk(model):
"""Tests whether the given model has an integer primary key."""
pk = model._meta.pk
return (
(
isinstance(pk, (models.IntegerField, models.AutoField)) and
not isinstance(pk, models.BigIntegerField)
) or (
isinstance(pk, models.ForeignKey) and has_int_pk(remote_model(pk))
)
)
