add agency news api

news/api/urls.py

@@ -15,5 +15,6 @@
     path('search/<str:keyword>', views.NewsSearchView.as_view()),
     path('suggestion/<str:token>', views.NewsSuggestionView.as_view()),
     path('subscription/', views.NewsSubscriptionView.as_view()),
+    path('agency/<str:agency_name>', views.AgencyDetailView.as_view()),
     path('<str:token>/', views.NewsDetailView.as_view()),
 ]

news/api/views.py

@@ -25,6 +25,8 @@
     create_news_suggestion,
     get_user_subscriptions_service,
     subscribe_news_service,
+    get_agency_service,
+    get_agency_news_service,
 )
 from response.rest import (
     OkResponse,
@@ -113,6 +115,17 @@ def post(self, request):
             return NotFoundResponse(message=message)
 
 
+class AgencyDetailView(APIView):
+
+    def get(self, request, agency_name):
+        is_successful, message = get_agency_service(agency_name)
+        if is_successful:
+            news = get_agency_news_service(agency_name)
+            return OkResponse(agency=message, news=news)
+        else:
+            return NotFoundResponse(message=message)
+
+
 # Get news by Category title
 class CategoryDetailView(APIView):
     def get(self, request, category_name):

news/services/news.py

@@ -16,10 +16,11 @@
     get_news_by_description_detail,
     get_random_news,
     get_subscriptions_by_subscriber,
+    get_agency_news,
 )
 from news.utils.news_cache import NewsCache
 from news.models import News, Agency, Reporter, Subscription
-from news.api.serializers import NewsSerializer
+from news.api.serializers import NewsSerializer, AgencySerializer
 
 
 def login_by_username_password(username: str, password: str) -> Tuple[bool, str]:
@@ -68,6 +69,21 @@ def get_detail_view_service(token: str):
     return True, resp
 
 
+def get_agency_service(agency_name: str):
+    # todo add cache
+    try:
+        agency = get_agency_by_name(agency_name)
+    except Agency.DoesNotExist:
+        return False, 'there is no agency with this token'
+    resp = AgencySerializer(agency).data
+    return True, resp
+
+
+def get_agency_news_service(agency_name: str):
+    news = get_agency_news(agency_name)
+    resp = NewsSerializer(news, many=True).data
+    return resp
+
 def is_user_reporter(username):
     reporter = get_reporter_by_username(username)
     if reporter is None:

news/utils/news.py

@@ -48,6 +48,13 @@ def get_agency_by_name(name):
         return None
 
 
+def get_agency_news(agency_name):
+    agency = Agency.objects.get(name=agency_name)
+    news = News.objects.filter(agency=agency)
+    return news
+
+
+
 def get_category_id(category_name):
     category = Category.objects.get(title=category_name)
     return category.id