jira curl得到问题(jira curl to get issues)

 仅供参考 
 
 假设您有三个模型： 
 
class User(model.Model):
    username = model.CharField('username', max_length=10)

class Question(model.Model):
    title = models.CharField('title', max_length=10)

class Answer(model.Model):
    user = model.ForeignKey(User)
    question = model.ForeignKey(Question)
    body = model.TextField('the answer body')
 
 你需要序列化Answer ，显示Question的详细信息，但不显示User的详细信息，然后你可以定义你的序列化服务器： 
 
class QuestionSerializer(serializers.ModelSerializer):
    class Meta:
        model = Question
        exclude = []

class AnswerSerializer(serializers.ModelSerializer):
    question = QuestionSerializer(many=False, read_only=True)
    class Meta:
        model = Answer
        exclude = []
 
 当您使用AnswerSerializer序列化Answer时，您会注意到question字段同时是序列化的，但是user字段仍然是没有序列化的整数。 
 
 如果需要序列化外键，可以显式定义序列化程序中的字段，字段名称等于model的字段名称，该值等于外键模型序列化程序。 当模型序列化时，在这种情况下Answer ，外键字段，本案例的question ，将用QuestionSerializer “扩展”，而其他外键字段仍然保留原始外键值，在这种情况下是user ，如果你没有在序列化器中明确定义了一个序列化器字段。 
 
 希望它会有所帮助。 

Just for your reference
 
Suppose you have three models:
 
class User(model.Model):
    username = model.CharField('username', max_length=10)

class Question(model.Model):
    title = models.CharField('title', max_length=10)

class Answer(model.Model):
    user = model.ForeignKey(User)
    question = model.ForeignKey(Question)
    body = model.TextField('the answer body')
 
And you need to serialise Answer, with showing the detail of Question, but not showing the detail of User, then you could define your serialisers like that:
 
class QuestionSerializer(serializers.ModelSerializer):
    class Meta:
        model = Question
        exclude = []

class AnswerSerializer(serializers.ModelSerializer):
    question = QuestionSerializer(many=False, read_only=True)
    class Meta:
        model = Answer
        exclude = []
 
when you serialise Answer with AnswerSerializer, you will notice that question field is serialise at the same time, however user field is still an integer without serialising.
 
If you need to serialise a foreign key, you can define a field in the serializer explicitly, and the field name equal to the field name in model, and the value is equal to Foreign key model serializer. When the model is serialise, Answer in this case, the foreign key field, question for this case, will be "expanded" with QuestionSerializer, and other foreign key fields still keep the origin foreign key value, user in this case, if you haven't explicitly defined a serializer field in the serializer.
 
Hope it would help.