fix sort by product type

apps/product/models.py

@@ -38,6 +38,13 @@ class ProductType(TypeDefaultImageMixin, TranslatedFieldsMixin, ProjectBaseMixin
         (SOUVENIR, 'souvenir'),
         (BOOK, 'book')
     )
+
+    INDEX_PLURAL_ONE = {
+        'food': 'food',
+        'wines': 'wine',
+        'liquors': 'liquor',
+    }
+
     name = TJSONField(blank=True, null=True, default=None,
                       verbose_name=_('Name'), help_text='{"en-GB":"some text"}')
     index_name = models.CharField(max_length=50, unique=True, db_index=True,

apps/product/urls/common.py

@@ -19,10 +19,13 @@ urlpatterns = [
 
     # similar products by type/subtype
     # temporary uses single mechanism, bec. description in process
-    path('slug/<slug:slug>/similar/wines/', views.SimilarListView.as_view(),
-         name='similar-wine'),
-    path('slug/<slug:slug>/similar/liquors/', views.SimilarListView.as_view(),
-         name='similar-liquor'),
-    path('slug/<slug:slug>/similar/food/', views.SimilarListView.as_view(),
-         name='similar-food'),
+    # path('slug/<slug:slug>/similar/wines/', views.SimilarListView.as_view(),
+    #      name='similar-wine'),
+    # path('slug/<slug:slug>/similar/liquors/', views.SimilarListView.as_view(),
+    #      name='similar-liquor'),
+    # path('slug/<slug:slug>/similar/food/', views.SimilarListView.as_view(),
+    #      name='similar-food'),
+
+    path('slug/<slug:slug>/similar/<str:type>/', views.SimilarListView.as_view(),
+         name='similar-products')
 ]

apps/product/views/common.py

@@ -6,7 +6,7 @@ from rest_framework import generics, permissions
 from comment.models import Comment
 from comment.serializers import CommentRUDSerializer
 from product import filters, serializers
-from product.models import Product
+from product.models import Product, ProductType
 from utils.views import FavoritesCreateDestroyMixinView
 from utils.pagination import PortionPagination
 from django.conf import settings
@@ -44,8 +44,15 @@ class ProductSimilarView(ProductListView):
         """
         Return base product instance for a getting list of similar products.
         """
-        product = get_object_or_404(Product.objects.all(),
-                                    slug=self.kwargs.get('slug'))
+        if isinstance(self.kwargs.get('type'), str):
+            if not self.kwargs.get('type') in ProductType.INDEX_PLURAL_ONE:
+                return None
+            product_type = get_object_or_404(ProductType.objects.all(), index_name=ProductType.INDEX_PLURAL_ONE[self.kwargs.get('type')])
+            product = get_object_or_404(Product.objects.all(),
+                                        slug=self.kwargs.get('slug'), product_type=product_type)
+        else:
+            product = get_object_or_404(Product.objects.all(),
+                                        slug=self.kwargs.get('slug'))
         return product