返回特定對象屬性序列化器Django Rest框架

Question

我有以下代碼，它的工作原理，但它返回以下內容。我怎樣才能改變它顯示主題字段，而不是返回完整的對象（主題對象）???有任何想法嗎？謝謝。

{ 
    "name": "Andres", 
    "nick": "andresito", 
    "avatar_s": "", 
    "rate": 50, 
    "id": 3, 
    "subjects": [ 
     "subjects object", 
     "subjects object" 
    ] 
} 

，它應該返回

{ 
    "name": "Andres", 
    "nick": "andresito", 
    "avatar_s": "", 
    "rate": 50, 
    "id": 3, 
    "subjects": [ 
     "Web Development", 
     "User Experience" 
    ] 
} 

我的models.py是：

class subjects(models.Model): 

#id = models.IntegerField(db_column='ID', primary_key=True) # Field name made lowercase. 
id_user = models.IntegerField(db_column='ID_user') # Field name made lowercase. 
s = models.CharField(max_length=90) 
grade = models.IntegerField() 
ss = models.CharField(max_length=100) 
id_school = models.IntegerField(db_column='ID_school') # Field name made lowercase. 
subject_area = models.CharField(max_length=20) 
subject_number = models.CharField(max_length=30) 
subject_section = models.CharField(max_length=10) 
current = models.IntegerField() 

class Meta: 
    db_table = 'subjects' 

class users(models.Model): 
#id = models.IntegerField(db_column='ID') # Field name made lowercase. 
nick = models.CharField(unique=True, max_length=60) 
name = models.CharField(max_length=80) 
rate = models.CharField(max_length=2) 
avatar_s = models.CharField(max_length=160) 



def user_subjects(self): 

    subject = subjects.objects.filter(id_user=self.id) 
    return subject 

class Meta: 

    db_table = 'users' 

我Serializers.py是

類UserKarmaSerializer（serializers.HyperlinkedModelSerializer）：

subjects = serializers.Field(source='user_subjects') 

class Meta: 
    model = users 
    fields = ('name', 'nick', 'avatar_s', 'rate', 'id', 'subjects') 

Answer 1

這個問題的答案是隻需添加一個Unicode到外地，您將返回到模型主題

def __unicode__(self): 
    return self.s