How To Change Serialized Json Structure Django Rest Framwork

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' }, 'par

Solution 1:

It depends of the serializers/models you use, but in general can use serializers looking like this:

class Serializer1(serializers.Serializer):
    discipline = serializers.CharField()
    room = serializers.IntegerField()
    para_professer = Serializer2()

class Serializer2(serializers.Serializer):
    username = serializers.CharField()
    email = serializers.CharField()
    first_name = serializers.CharField()
    last_name = serializers.CharField()
    middle_name = serializers.CharField()

Here you can find the nested serializer doc of the django rest framework http://www.django-rest-framework.org/api-guide/relations/#nested-relationships

Based on the new infos in your question you could overwrite the .to_representation() method of your serializer:

classParaSerializer(serializers.ModelSerializer):classMeta:
        model = Para
        fields = (
            'para_subject',
            'para_room',
            'para_professor',
            'para_number',
            'para_day',
            'para_group',
            'week_type'
        )

    defto_representation(self, instance):
        return {
            'discipline': instance.para_subject.name,
            'room': instance.para_room.number,
            'para_professor': {
                'username': instance.para_professor.username,
                'email': instance.para_professor.email,
                'first_name': instance.para_professor.first_name,
                'last_name': instance.para_professor.last_name,
                'middle_name': instance.para_professor.middle_name
            }
        }

Solution 2:

You can add discipline and room fields with source parameters on ParaSerializer.

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

classParaSerializer(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)

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