django rest 框架抽象类序列化器 [英] django rest framework abstract class serializer

问题描述

我有一些这样的模型:

class TypeBase(models.Model):
    name = models.CharField(max_length=20)
    class Meta:
        abstract=True

class PersonType(TypeBase):
    pass

class CompanyType(TypeBase):
    pass

有了这个，我只想创建一个序列化器来保存所有这些字段类型(序列化、反序列化、更新和保存).

Having this, I want to create just one serializer that holds all these field types (serialization, deserialization, update and save).

更具体地说，我只需要一个序列化程序 (TypeBaseSerializer) 来在 UI 上打印下拉列表、序列化 json 响应、在发布时将其反序列化并将其保存为所有基于我的类型.

To be more specific, I want only one serializer (TypeBaseSerializer) that print the Dropdown on the UI, serialize the json response, deserialize it on post and save it for all my based types.

像这样:

class TypeBaseSerializer(serializers.Serializer):
    class Meta:
        model = TypeBase
        fields = ('id', 'name')

有可能吗?

推荐答案

我觉得下面的方法更简洁.您可以将基本序列化程序的抽象"字段设置为 true，并为所有子序列化程序添加通用逻辑.

I think the following approach is more cleaner. You can set "abstract" field to true for the base serializer and add your common logic for all child serializers.

class TypeBaseSerializer(serializers.ModelSerializer):
    class Meta:
        model = TypeBase
        fields = ('id', 'name')
        abstract = True

    def func(...):
    # ... some logic

然后创建子序列化器并将它们用于数据操作.

And then create child serializers and use them for data manipulation.

class PersonTypeSerializer(TypeBaseSerializer):
    class Meta:
        model = PersonType
        fields = ('id', 'name')


class CompanyTypeSerializer(TypeBaseSerializer):
    class Meta:
        model = CompanyType
        fields = ('id', 'name')

现在您可以对每个模型正常使用这两个序列化程序.

Now you can use the both of these serializers normally for every model.

但是如果你真的想为两个模型都拥有一个序列化器，那么也为他创建一个容器模型和一个序列化器.那更干净:)

But if you really want to have one serializers for both the models, then create a container model and a serializer for him too. That is much cleaner :)

这篇关于django rest 框架抽象类序列化器的文章就介绍到这了，希望我们推荐的答案对大家有所帮助，也希望大家多多支持IT屋！