Localize PNI categories & products (#7124)

network-api/networkapi/wagtailpages/pagemodels/products.py

@@ -17,7 +17,7 @@
 
 from wagtail.admin.edit_handlers import InlinePanel, FieldPanel, MultiFieldPanel, PageChooserPanel
 from wagtail.contrib.routable_page.models import RoutablePageMixin, route
-from wagtail.core.models import Orderable, Page, TranslatableMixin
+from wagtail.core.models import Locale, Orderable, Page, TranslatableMixin
 
 from wagtail.images.edit_handlers import ImageChooserPanel
 from wagtail.search import index
@@ -46,14 +46,17 @@
 ]
 
 
-def get_product_subset(cutoff_date, authenticated, key, products):
+def get_product_subset(cutoff_date, authenticated, key, products, language_code='en'):
     """
     filter a queryset based on our current cutoff date,
     as well as based on whether a user is authenticated
     to the system or not (authenticated users get to
     see all products, including draft products)
     """
-    products = products.filter(review_date__gte=cutoff_date)
+    products = products.filter(
+        review_date__gte=cutoff_date,
+        locale=Locale.objects.get(language_code=language_code)
+    )
     if not authenticated:
         products = products.live()
     products = sort_average(products)
@@ -1365,6 +1368,13 @@ def get_banner(self):
         ),
     ]
 
+    def get_language_code(self, request):
+        """Accepts a request. Returns a language code (string) if there is one. Falls back to English."""
+        default_language_code = settings.LANGUAGE_CODE
+        if hasattr(request, 'LANGUAGE_CODE'):
+            default_language_code = request.LANGUAGE_CODE
+        return default_language_code
+
     @route(r'^about/$', name='how-to-use-view')
     def about_page(self, request):
         context = self.get_context(request)
@@ -1438,6 +1448,7 @@ def product_view(self, request, slug):
     @route(r'^categories/(?P<slug>[\w\W]+)/', name='category-view')
     def categories_page(self, request, slug):
         context = self.get_context(request, bypass_products=True)
+        language_code = self.get_language_code(request)
         slug = slugify(slug)
 
         # If getting by slug fails, also try to get it by name.
@@ -1448,6 +1459,7 @@ def categories_page(self, request, slug):
 
         authenticated = request.user.is_authenticated
         key = f'cat_product_dicts_{slug}_auth' if authenticated else f'cat_product_dicts_{slug}_live'
+        key = f'{language_code}_{key}'
         products = cache.get(key)
         exclude_cat_ids = [excats.category.id for excats in self.excluded_categories.all()]
 
@@ -1457,7 +1469,8 @@ def categories_page(self, request, slug):
                 authenticated,
                 key,
                 ProductPage.objects.filter(product_categories__category__in=[category])
-                                   .exclude(product_categories__category__id__in=exclude_cat_ids)
+                                   .exclude(product_categories__category__id__in=exclude_cat_ids),
+                language_code=language_code
             )
 
         context['category'] = category.slug
@@ -1500,9 +1513,11 @@ def get_sitemap_urls(self, request):
 
     def get_context(self, request, *args, **kwargs):
         context = super().get_context(request, *args, **kwargs)
+        language_code = self.get_language_code(request)
 
         authenticated = request.user.is_authenticated
         key = 'home_product_dicts_authed' if authenticated else 'home_product_dicts_live'
+        key = f'{key}_{language_code}'
         products = cache.get(key)
         exclude_cat_ids = [excats.category.id for excats in self.excluded_categories.all()]
 
@@ -1511,10 +1526,15 @@ def get_context(self, request, *args, **kwargs):
                 self.cutoff_date,
                 authenticated,
                 key,
-                ProductPage.objects.exclude(product_categories__category__id__in=exclude_cat_ids)
+                ProductPage.objects.exclude(product_categories__category__id__in=exclude_cat_ids),
+                language_code=language_code
             )
 
-        context['categories'] = BuyersGuideProductCategory.objects.filter(hidden=False)
+        categories = BuyersGuideProductCategory.objects.filter(
+            hidden=False,
+            locale=Locale.objects.get(language_code=language_code)
+        )
+        context['categories'] = categories
         context['products'] = products
         context['web_monetization_pointer'] = settings.WEB_MONETIZATION_POINTER
         pni_home_page = BuyersGuidePage.objects.first()