Question

我正在尝试对Mongoengine modify操作应用自定义验证，如下所示：

class Form(Document):

    fields = ListField(EmbeddedDocumentField(Field))

    def modify(self, *args, **kwargs):
        for field in self.fields:
            if not [field for field in self.fields if field.type == "email"]:
                raise ValidationError("Form must have an email field")

        super(Form, self).modify(**kwargs)

     def update_form(self, modify_kwargs):
         return self.modify(**modify_kwargs)

但是，当我致电update_form时，自定义验证不会在modify中考虑更新的数据。是否有某种预挂钩用于进行此类验证？

Answer 1

您正在验证对象字段属性而不是kwargs。但请确保每个字段都是包含.type的对象。你不应该使用python保留字类型。

class Form(Document):

fields = ListField(EmbeddedDocumentField(Field))

def modify(self, *args, **kwargs):
     if not [field for field in kwargs.get('fields', []) if field.type == "email"]:
         raise ValidationError("Form must have an email field")

    super(Form, self).modify(**kwargs)

 def update_form(self, modify_kwargs):
     return self.modify(**modify_kwargs)

Mongoengine自定义验证与修改

1 个答案: