optimizer.py 文件源码

def reduce_add_field_alter_field(self, operation, other, in_between):
        if (operation.model_name_lower == other.model_name_lower and
                operation.name_lower == other.name_lower):
            return [
                migrations.AddField(
                    model_name=operation.model_name,
                    name=operation.name,
                    field=other.field,
                )
            ]