Method get_source_fields

django/db/models/aggregates.py:108–111

(self)

        super().__init__(*expressions, **extra)

    def get_source_fields(self):
        # Don't consider filter and order by expression as they have nothing
        # to do with the output field resolution.
        return [e._output_field_or_none for e in super().get_source_expressions()]

    def get_source_expressions(self):
        source_expressions = super().get_source_expressions()