gault-millau/apps/product/serializers/common.py
2019-10-29 17:16:39 +03:00

96 lines
3.2 KiB
Python

"""Product app serializers."""
from rest_framework import serializers
from utils.serializers import TranslatedField, FavoritesCreateSerializer
from product.models import Product, ProductSubType, ProductType
from utils import exceptions as utils_exceptions
from django.utils.translation import gettext_lazy as _
from location.serializers import (WineRegionBaseSerializer, WineAppellationBaseSerializer,
CountrySimpleSerializer)
class ProductSubTypeBaseSerializer(serializers.ModelSerializer):
"""ProductSubType base serializer"""
name_translated = TranslatedField()
index_name_display = serializers.CharField(source='get_index_name_display')
class Meta:
model = ProductSubType
fields = [
'id',
'name_translated',
'index_name_display',
]
class ProductTypeBaseSerializer(serializers.ModelSerializer):
"""ProductType base serializer"""
name_translated = TranslatedField()
index_name_display = serializers.CharField(source='get_index_name_display')
class Meta:
model = ProductType
fields = [
'id',
'name_translated',
'index_name_display',
]
class ProductBaseSerializer(serializers.ModelSerializer):
"""Product base serializer."""
name_translated = TranslatedField()
description_translated = TranslatedField()
category_display = serializers.CharField(source='get_category_display')
product_type = ProductTypeBaseSerializer()
subtypes = ProductSubTypeBaseSerializer(many=True)
wine_region = WineRegionBaseSerializer(allow_null=True)
wine_appellation = WineAppellationBaseSerializer(allow_null=True)
available_countries = CountrySimpleSerializer(source='country', many=True)
class Meta:
"""Meta class."""
model = Product
fields = [
'id',
'slug',
'name_translated',
'category_display',
'description_translated',
'available',
'product_type',
'subtypes',
'public_mark',
'wine_region',
'wine_appellation',
'available_countries',
]
class ProductFavoritesCreateSerializer(FavoritesCreateSerializer):
"""Serializer to create favorite object w/ model Product."""
def validate(self, attrs):
"""Overridden validate method"""
# Check establishment object
product_qs = Product.objects.filter(slug=self.slug)
# Check establishment obj by slug from lookup_kwarg
if not product_qs.exists():
raise serializers.ValidationError({'detail': _('Object not found.')})
else:
product = product_qs.first()
# Check existence in favorites
if product.favorites.filter(user=self.user).exists():
raise utils_exceptions.FavoritesError()
attrs['product'] = product
return attrs
def create(self, validated_data, *args, **kwargs):
"""Overridden create method"""
validated_data.update({
'user': self.user,
'content_object': validated_data.pop('product')
})
return super().create(validated_data)