SnippetSerializer

models.py

class SnippetSerializer(serializers.Serializer):
    title = serializers.CharField(required=False,
                                  max_length=100)
    code = serializers.CharField(widget=widgets.Textarea,
                                 max_length=100000)
    linenos = serializers.BooleanField(required=False)
    lexer = serializers.ChoiceField(choices=models.LEXER_CHOICES,
                                    default='python')
    style = serializers.ChoiceField(choices=models.STYLE_CHOICES,
                                    default='friendly')

    def restore_object(self, attrs, instance=None):
        """
        Create or update a new comment instance.
        """
        if instance:
            instance.title = attrs['title']
            instance.code = attrs['code']
            instance.linenos = attrs['linenos']
            instance.lexer = attrs['lexer']
            instance.style = attrs['style']
            return instance
        return models.Snippet(**attrs)