class SPProductappstream(serializers.ModelSerializer):
    categories = CategorySerializer(many=True)
    pk = serializers.Field()  # Note: `Field` is an untyped read-only field.
    active  = serializers.BooleanField(required=False)
    mandriva_featured  = serializers.BooleanField(required=False)
    slug= serializers.CharField(required=False,max_length=50)
    name= serializers.CharField(required=False,max_length=250)
    description= serializers.CharField(required=False,max_length=500)
    class Meta:
        model = models.SPProduct
        fields = ['slug', 'name', 'description', 'mandriva_featured','active',
                  'categories' ]
        depth = 1