def _build_lookup(self, field_name, lookup, value, field=CharField):
fake_field = field()
fake_field.set_attributes_from_name(field_name)
if django.VERSION[:2] <= (1, 7):
lhs = datastructures.Col('faketable', fake_field, fake_field)
else:
lhs = expressions.Col('faketable', fake_field, fake_field)
lookup = lhs.get_lookup(lookup)
return lookup(lhs, value)
def _build_lookup(self, field_name, lookup, value, field=fields.CharField):
fake_field = field()
fake_field.set_attributes_from_name(field_name)
lhs = expressions.Col('faketable', fake_field, fake_field)
lookup = lhs.get_lookup(lookup)
return lookup(lhs, value)