如何更改序列化的JSON结构 [英] how to change serialized JSON structure django rest framwork

问题描述

我想知道是否有可能更改即时识别的JSON结构.currenyly看起来像这样:

I'm wondering if it possible to change structure of my JSON that im sedinding out. currenyly it looks like this:

{
    "para_subject": {
      "discipline": "MATAN"
    },
    "para_room": {
      "room": "210"
    },
    "para_professor": {
        "user": {
            "username": "yyyy",
            "email": "[e-mail]",
            "first_name": "yyyy",
            "last_name": "yyy"
         },
        "middle_name": "xxxxxx"
     },

}

将其更改为此的最佳方法是什么

what is the best way to change it to this:

  {
    "discipline": "MATAN",
    "room": "210",
    "para_professor": {
        "username": "yyyy",
         "email": "[e-mail]",
         "first_name": "yyyy",
         "last_name": "yyy"
         "middle_name": "xxxx"
         },
    }

更新:在评论的请求中添加序列化器和模型

UPDATE: Adding serializer and model upon to the request in comments

对象序列化器:

class ParaSerializer(serializers.ModelSerializer):
    para_subject = DisciplineSerializer()
    para_room = RoomSerializer()
    para_professor = ProfessorProfileForScheduleSerializer(read_only=True)
    para_number = ParaTimeSerializer()
    para_day = WorkingDaySerializer()
    # para_group = StudentGroupSerializer()

    class Meta:
        model = Para
        fields = (
            'para_subject',
            'para_room',
            'para_professor',
            'para_number',
            'para_day',
            'para_group',
            'week_type'
        )

对象模型:

class Para(models.Model):

    class Meta(object):
        verbose_name = u"Class"
        verbose_name_plural = u"Classes"

    para_subject = models.ForeignKey(
        'Disciplines',
        blank=True,
        null=True,
        verbose_name=u"Discipline"
    )
    para_room = models.ForeignKey(
        'Rooms',
        blank=True,
        null=True,
        verbose_name=u"Room"
    )
    para_professor = models.ForeignKey(
        'students.ProfileModel',
        blank=True,
        null=True,
        verbose_name=u"Professor"
    )
    para_number = models.ForeignKey(
        'ParaTime',
        blank=True,
        null=True,
        verbose_name=u"Class Starts/Ends"
    )
    para_day = models.ForeignKey(
        WorkingDay,
        blank=True,
        null=True,
        verbose_name=u"Working day")

    para_group = models.ForeignKey(
        'StudentGroupModel',
        blank=True,
        null=True,
        verbose_name=u"Student Group"
    )
    week_type = models.BooleanField(
        default=True,
        verbose_name=u"Is week even"
    )

    def __unicode__(self):
        return u"%s %s" % (self.para_subject, self.para_room)

推荐答案

您可以在 ParaSerializer .

这些字段将从提到的 source 中获取值，并将其包含在输出中.

These fields will fetch the value from the source mentioned and will be included in the output.

class ParaSerializer(serializers.ModelSerializer)
    # define 'discipline' and 'room' fields
    discipline = serializers.CharField(source='para_subject.discipline', read_only=True)
    room = serializers.CharField(source='para_room.room', read_only=True)

    class Meta:
        model = Para
        fields = (
            'discipline', # include this field
            'room', # include this field
            'para_professor',
            'para_number',
            'para_day',
            'para_group',
            'week_type'
        )

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