بازنویسی serializer توی Django Rest Framework

توی serializer های DRF گاهی لازمه وقتی متد list() اون صدا زده میشه باید قبلش دیتایی که ازش گرفته میشه تغییری بدیم برای این کار از متد to_representaion استفاده میکنیم.

class LinkAPISerializer(serializers.ModelSerializer):
    provider_name = serializers.CharField(source='provider.name_fixed', read_only=True)
    consumer_name = serializers.CharField(source='consumer.name_fixed', read_only=True)
    interface_name = serializers.CharField(source='interface.name_fixed', read_only=True)
    interface2_name = serializers.CharField(source='interface2.name_fixed', read_only=True)
    protocol_name = serializers.CharField(source='protocol.name_fixed', read_only=True)
    lt_display = serializers.CharField(source='get_lt_display', read_only=True)

    class Meta:
        model = Link
        fields = [
            'id', 'provider', 'provider_name', 'consumer', 'consumer_name', 'interface', 'interface_name', 'interface2',
            'interface2_name', 'protocol', 'protocol_name', 'lt', 'lt_display', 'description', 'api', 'frequency',
            'ProviderVerified', 'ConsumerVerified', 'ESBVerified', 'api_gateway', 'active'
        ]

    def to_representation(self, instance):
        data = super().to_representation(instance)
        if data.get('description'):
            data['description'] = data['description'].strip('\"')

        return data

class LinkAPISerializer(serializers.ModelSerializer):

provider_name = serializers.CharField(source='provider.name_fixed', read_only=True)

consumer_name = serializers.CharField(source='consumer.name_fixed', read_only=True)

interface_name = serializers.CharField(source='interface.name_fixed', read_only=True)

interface2_name = serializers.CharField(source='interface2.name_fixed', read_only=True)

protocol_name = serializers.CharField(source='protocol.name_fixed', read_only=True)

lt_display = serializers.CharField(source='get_lt_display', read_only=True)

class Meta:

model = Link

fields = [

'id', 'provider', 'provider_name', 'consumer', 'consumer_name', 'interface', 'interface_name', 'interface2',

'interface2_name', 'protocol', 'protocol_name', 'lt', 'lt_display', 'description', 'api', 'frequency',

'ProviderVerified', 'ConsumerVerified', 'ESBVerified', 'api_gateway', 'active'

]

def to_representation(self, instance):

data = super().to_representation(instance)

if data.get('description'):

data['description'] = data['description'].strip('\"')

return data

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