math_operation.py 文件源码

def all_fields(self, **kwargs):
        return [
            self.build_help_field(),
            {
                'type': 'unicode',
                'required': True,
                'key': 'operation',
                'choices': 'add|Add,sub|Subtract,mul|Multiply,div|Divide,neg|Make Negative',
                'help_text': 'The math operation to perform.'
            },
            self.build_list_input_field()
        ]