UserFavorites system

backend/account/migrations/0030_userfavorites.py

@@ -0,0 +1,28 @@
+# Generated by Django 5.1.2 on 2025-10-23 08:50
+
+import django.db.models.deletion
+from django.conf import settings
+from django.db import migrations, models
+
+
+class Migration(migrations.Migration):
+
+    dependencies = [
+        ('account', '0029_shopmodel'),
+        ('product', '0055_alter_productmodel_options'),
+    ]
+
+    operations = [
+        migrations.CreateModel(
+            name='UserFavorites',
+            fields=[
+                ('id', models.BigAutoField(auto_created=True, primary_key=True, serialize=False, verbose_name='ID')),
+                ('products', models.ManyToManyField(blank=True, to='product.productmodel', verbose_name='Likes')),
+                ('user', models.OneToOneField(on_delete=django.db.models.deletion.CASCADE, to=settings.AUTH_USER_MODEL, verbose_name='User')),
+            ],
+            options={
+                'verbose_name': 'User Favorites',
+                'verbose_name_plural': 'Users Favorites',
+            },
+        ),
+    ]

backend/account/models.py

@@ -292,4 +292,17 @@ class SecurityBreachAttemptModel(models.Model):
 #     description = models.TextField()
 
 #     def __str__(self):
-#         return f'{self.subject[:30]}'
+#         return f'{self.subject[:30]}'
+
+from product.models import ProductModel
+
+class UserFavorites(models.Model):
+    user = models.OneToOneField(User, verbose_name=_('User'), on_delete=models.CASCADE)
+    products = models.ManyToManyField(ProductModel, verbose_name=_('Likes'), blank=True,)
+
+    def __str__(self):
+        return f'{self.user} likes'
+    
+    class Meta:
+        verbose_name = _("User Favorites")
+        verbose_name_plural = _("Users Favorites")

backend/account/urls.py

@@ -17,5 +17,7 @@ urlpatterns = [
     path('unsubscribe', views.UnsubscribeView.as_view(), name='unsubscibe'),
     path('attack/view/<int:pk>', views.ChangeViewAttack.as_view(), name='attack-view'),
     path('logout', views.LogoutView.as_view(), name='logout'),
-    path('notification/all', views.NotificationListAPIView.as_view(), name='notif-list')
+    path('notification/all', views.NotificationListAPIView.as_view(), name='notif-list'),
+    path('favorites', views.FavoritesView.as_view(), name='favorites'),
+    path('favorites/toggle', views.ToggleFavoriteView.as_view(), name='favorite-toggle'),
 ]

backend/account/views.py

@@ -355,3 +355,77 @@ class NotificationListAPIView(APIView):
     
     def str_to_bool(self, val):
         return True if val and val == 'read' else False
+from product.models import ProductModel
+class AddToFavoritesSerializer(serializers.Serializer):
+    product_slug = serializers.SlugField(allow_unicode=True)
+
+    def validate_product_id(self, value):
+        if not ProductModel.objects.filter(slug=value).exists():
+            raise serializers.ValidationError("Product does not exist.")
+        return value
+
+
+from product.serializers import DynamicProductSerializer
+from django.shortcuts import get_object_or_404
+
+class ToggleFavoriteView(APIView):
+    permission_classes = [IsAuthenticated]
+
+    @extend_schema(
+        request=AddToFavoritesSerializer,
+        responses={200: DynamicProductSerializer},
+        tags=["favorites"]
+    )
+    def post(self, request):
+        serializer = AddToFavoritesSerializer(data=request.data)
+        serializer.is_valid(raise_exception=True)
+
+        product_slug = serializer.validated_data["product_slug"]
+        product = get_object_or_404(ProductModel, slug=product_slug)
+
+        user_fav, _ = UserFavorites.objects.get_or_create(user=request.user)
+
+        if product in user_fav.products.all():
+            user_fav.products.remove(product)
+            action = "removed"
+        else:
+            user_fav.products.add(product)
+            action = "added"
+
+        return Response(
+            {
+                "action": action,
+                "product": DynamicProductSerializer(product, context={'request': request, 'view_type': 'list'}).data
+            },
+            status=status.HTTP_200_OK
+        )
+from drf_spectacular.utils import extend_schema, OpenApiParameter, OpenApiTypes
+from utils.pagination import StructurePagination
+class FavoritesView(APIView):
+    permission_classes = [IsAuthenticated]
+    serializer_class = DynamicProductSerializer
+    pagination_class = StructurePagination
+    @extend_schema(
+        tags=["favorites"],
+        parameters=[
+            OpenApiParameter(
+                name="limit",
+                description="Number of results to return per page (pagination).",
+                required=False,
+                type=OpenApiTypes.INT,
+            ),
+            OpenApiParameter(
+                name="offset",
+                description="The starting position of the results (pagination).",
+                required=False,
+                type=OpenApiTypes.INT,
+            ),
+        ]
+    )
+    def get(self, request):
+        user_fav, _ = UserFavorites.objects.get_or_create(user=request.user)
+        products = user_fav.products.all()
+        paginator = self.pagination_class()
+        paginated_products = paginator.paginate_queryset(products, request)
+        serializer = self.serializer_class(instance=paginated_products, many=True, context={'request': request, 'view_type': 'list'})
+        return paginator.get_paginated_response(serializer.data)

backend/product/serializers.py

@@ -112,6 +112,7 @@ class DynamicProductSerializer(serializers.ModelSerializer):
     category = SubCategorySerializer(read_only=True)
     is_new = serializers.SerializerMethodField()
     related_products = serializers.SerializerMethodField()
+    added_to_favorites = serializers.SerializerMethodField()
     
     def __init__(self, *args, **kwargs):
         super().__init__(*args, **kwargs)
@@ -131,10 +132,23 @@ class DynamicProductSerializer(serializers.ModelSerializer):
         view_type = {
             'list': ['id','name', 'rating', 'slug', 'category', 'variants', 'colors'],
             'slider': ['id','name', 'rating', 'slug', 'category', 'variants', 'colors'],
-            'instance': ['id', 'name', 'description', 'rating',  'slug', 'meta_description', 'meta_keywords', 'meta_rating', 'category', 'related_products', 'in_pack_items', 'variants', 'colors'],
+            'instance': ['id', 'name', 'description', 'rating',  'slug', 'meta_description', 'meta_keywords', 'meta_rating', 'category', 'related_products', 'in_pack_items', 'variants', 'colors', 'added_to_favorites'],
             'chat': ['id', 'name', 'description', 'variants']
         }
 
+    def get_added_to_favorites(self, obj):
+        from account.models import UserFavorites
+        request = self.context.get('request')
+        if not request or not request.user.is_authenticated:
+            return False  # not logged in users haven't added anything
+
+        try:
+            user_fav = UserFavorites.objects.get(user=request.user)
+        except UserFavorites.DoesNotExist:
+            return False
+
+        return obj in user_fav.products.all()
+
     def get_variants(self, obj):
         view_type = self.context.get('view_type')
         if view_type == 'slider':