查询结果的自定义JSON表示形式 [英] Custom JSON representation of query result

问题描述

我想在Django REST Framework中找到想要以特定方式格式化查询结果的位置。

I'm looking for the place in Django REST Framework to hook in when wanting to format the result of a query in a specific way.

即，我想要获取查询返回的所有行，并创建具有某些元数据和不同（嵌套）结构的非常特定类型的JSON响应。

That is, I want to take all the rows returned by a query and create a very specific type of JSON response with some meta data and a different (nested) structure.

似乎序列化程序一次只照顾一排。自定义视图是否合适？

It seems that serializers take care of one row at a time. Are custom views the right place for this?

推荐答案

我希望这会有所帮助...（Django 1.8）

I hope this helps... (Django 1.8)

模型：

class Users(AbstractBaseUser):
    email = models.EmailField(unique=True)
    username = models.CharField(max_length=100, blank=True)
    first_name = models.CharField(max_length=100, blank=True)
    last_name = models.CharField(max_length=100, blank=True)
    company = models.ForeignKey(Company)

序列化器：

    class UserListSerializer(serializers.ModelSerializer):
        company_name = serializers.SerializerMethodField()
        def get_company_name(self, obj):
            return obj.company.name

        class Meta:
            model = Users
            fields = ('id', 'email', 'username', 'first_name', 'last_name',
                     'company_name','company')

使用SerializerMethodField可以为记录添加任何自定义值。您可以使用此方法修改序列化程序。

With SerializerMethodField you can add any custom value for your record. You can modify your serializer with this method.

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