News multilang slugs (model && views)

_dockerfiles/db/Dockerfile

@@ -1,3 +1,4 @@
 FROM mdillon/postgis:10
 RUN localedef -i ru_RU -c -f UTF-8 -A /usr/share/locale/locale.alias ru_RU.UTF-8
 ENV LANG ru_RU.utf8
+COPY hstore.sql /docker-entrypoint-initdb.d

_dockerfiles/db/hstore.sql

@@ -0,0 +1 @@
+create extension hstore;

apps/news/migrations/0039_news_slugs.py

@@ -0,0 +1,27 @@
+# Generated by Django 2.2.7 on 2019-12-10 13:49
+
+import django.contrib.postgres.fields.hstore
+from django.db import migrations
+
+def migrate_slugs(apps, schemaeditor):
+    News = apps.get_model('news', 'News')
+    for news in News.objects.all():
+        if news.slug:
+            news.slugs = {'en-GB': news.slug}
+            news.save()
+
+
+class Migration(migrations.Migration):
+
+    dependencies = [
+        ('news', '0038_news_backoffice_title'),
+    ]
+
+    operations = [
+        migrations.AddField(
+            model_name='news',
+            name='slugs',
+            field=django.contrib.postgres.fields.hstore.HStoreField(blank=True, default=None, help_text='{"en-GB":"some slug"}', null=True, verbose_name='Slugs for current news obj'),
+        ),
+        migrations.RunPython(migrate_slugs, migrations.RunPython.noop)
+    ]

apps/news/models.py

@@ -12,6 +12,7 @@ from utils.models import (BaseAttributes, TJSONField, TranslatedFieldsMixin, Has
                           FavoritesMixin)
 from utils.querysets import TranslationQuerysetMixin
 from django.conf import settings
+from django.contrib.postgres.fields import HStoreField
 
 
 class Agenda(ProjectBaseMixin, TranslatedFieldsMixin):
@@ -182,6 +183,9 @@ class News(GalleryModelMixin, BaseAttributes, TranslatedFieldsMixin, HasTagsMixi
                                verbose_name=_('End'))
     slug = models.SlugField(unique=True, max_length=255,
                             verbose_name=_('News slug'))
+    slugs = HStoreField(null=True, blank=True, default=None,
+                       verbose_name=_('Slugs for current news obj'),
+                       help_text='{"en-GB":"some slug"}')
     state = models.PositiveSmallIntegerField(default=WAITING, choices=STATE_CHOICES,
                                              verbose_name=_('State'))
     is_highlighted = models.BooleanField(default=False,

apps/news/views.py

@@ -31,6 +31,10 @@ class NewsMixinView:
                 qs = qs.by_country_code(country_code)
         return qs
 
+    def get_object(self):
+        return self.get_queryset() \
+            .filter(slugs__values__contains=[self.kwargs['slug']]).first()
+
 
 class NewsListView(NewsMixinView, generics.ListAPIView):
     """News list view."""
@@ -46,7 +50,7 @@ class NewsListView(NewsMixinView, generics.ListAPIView):
 class NewsDetailView(NewsMixinView, generics.RetrieveAPIView):
     """News detail view."""
 
-    lookup_field = 'slug'
+    lookup_field = None
     serializer_class = serializers.NewsDetailWebSerializer
 
     def get_queryset(self):

apps/utils/views.py

@@ -9,6 +9,7 @@ from rest_framework.response import Response
 
 from gallery.tasks import delete_image
 from search_indexes.documents import es_update
+from news.models import News
 
 
 # JWT
@@ -124,6 +125,8 @@ class BaseCreateDestroyMixinView(generics.CreateAPIView, generics.DestroyAPIView
     lookup_field = 'slug'
 
     def get_base_object(self):
+        if isinstance(self._model, News):
+            get_object_or_404(self._model, slugs__values__contains=[self.kwargs['slug']])
         return get_object_or_404(self._model, slug=self.kwargs['slug'])
 
     def es_update_base_object(self):

project/settings/base.py

@@ -48,6 +48,7 @@ CONTRIB_APPS = [
     'django.contrib.messages',
     'django.contrib.staticfiles',
     'django.contrib.gis',
+    'django.contrib.postgres',
 ]