CODEWITHSUNDEEP
pythondjangorestdjango-rest-framework
Punyama
Punyama

Reputation: 55

Django Rest framework group fields together

I have a Django model Offer with field like name ... and bandwidth_value and bandwidth_unit. I use Django REST framework class ModelSerializer to serialize my model. I have : 

{"id": 10,"max_devices":5,"bandwidth_value":"100.00","bandwidth_unit":"M"}

And I want to have ;

{"id": 10,"max_devices":5,"bandwidth":{"value":"100.00","unit":"M"}}

How can I do ?

Upvotes: 5

Views: 3853

Answers (1)

bakkal
bakkal

Reputation: 55448

You can use a custom model serializer like below for your Offer model:

class Offer(serializers.ModelSerializer):                                                                                      
    class Meta:                                                                                                                         
        model = Offer
        fields = ('id', 'max_devices', 'bandwidth')                                                                                                                  

    # We add a custom field called "bandwidth",
    # which is served by a method in the serializer classs,
    # that returns the format you want.

    bandwidth = serializers.SerializerMethodField('get_bandwidth')                                                              

    def get_bandwidth(self, obj):                                                                                                  
        return {'bandwidth': {'value': obj.bandwidth_value,
                             'unit': obj.bandwidth_unit}}

Upvotes: 5

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