Django的REST框架序列化模型返回其STR表示

Question

再说说我的串行器看起来像这样

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',) 

我的标签模型是这样的：

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

    def __str__(self): 
     return self.entity_tag_label 

现在，这是好的，所有的，但我的回复如下所示：

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

是否有可能为我的标记序列化程序简单地返回字符串r每个标签的介绍？这样，我只想有

 "tags": [ 
      "Sender", 
     ], 

为例

Answer 1

可以使用SlugRelatedField做到这一点。例如：

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')