Question

说我的序列化程序看起来像这样

class EntitySerializer(serializers.ModelSerializer):
    entity_instance = EntityInstanceSerializer(many=True)
    tags = EntityTagSerializer(many=True)

    class Meta:
        model = Entity
        fields = ('id', 'entity_instance', 'tags', 'note', 'source')

class EntityTagSerializer(serializers.ModelSerializer):
    class Meta:
        model = EntityTagLabel
        fields = ('entity_tag_label',)

我的代码模型如下所示：

class EntityTag(models.Model):
    entity_tag_label = models.CharField(max_length=255, unique=True)

    def __str__(self):
        return self.entity_tag_label

现在这很好，但是我的回答是这样的：

   ...
        "tags": [
            {
                "entity_tag_label": "SENDER"
            }
        ],

我的标签序列化器是否可以简单地返回每个标签的字符串表示？这样我就会

        "tags": [
             "Sender",
        ],

作为例子

Answer 1

您可以使用SlugRelatedField执行此操作。类似的东西：

class EntitySerializer(serializers.ModelSerializer):
    entity_instance = EntityInstanceSerializer(many=True)
    tags = serializers.SlugRelatedField(
        slug_field='entity_tag_label',
        many=True,
        read_only=True
    )

    class Meta:
        model = Entity
        fields = ('id', 'entity_instance', 'tags', 'note', 'source')

django rest框架序列化模型以返回其str表示

1 个答案: