implement delete permanently api

@@ -221,6 +221,16 @@ class ItemViewSet(viewsets.ViewSet):
             return Response({'message': 'restore complete'}, status=status.HTTP_200_OK)
         return Response({'message': 'item is not existed.'}, status=status.HTTP_204_NO_CONTENT)
 
+    @action(methods=['DELETE'], detail=True, permission_classes=[AllowAny], url_path='delete', url_name='delete')
+    def delete(self, request, pk):
+        if request.method == 'DELETE':
+            item = get_object_or_None(Item, item_id=pk)
+            if item != None:
+                if item.is_folder == True:  # 폴더는 삭제 안되도록 처리
+                    return Response({'message': 'This item is folder.'}, status=status.HTTP_200_OK)
+                item.delete()
+            return Response({'message': 'delete permanently complete'}, status=status.HTTP_200_OK)
+        return Response({'message': 'item is not existed.'}, status=status.HTTP_204_NO_CONTENT)
 
     # url: items/11/move
     # 마지막 slash도 써주어야함

@@ -30,7 +30,7 @@ urlpatterns = [
     path('admin/', admin.site.urls),
     path('', include(router.urls)),
     url(r'^search/$', views.ItemViewSet.search, name='search'),
-    # url(r'^<int:pk>/delete/$', views.ItemViewSet.delete, name='delete'),
+    url(r'^<int:pk>/delete/$', views.ItemViewSet.delete, name='delete'),
     url(r'^<int:pk>/restore/$', views.ItemViewSet.restore, name='restore'),
     url(r'^<int:pk>/share/$', views.SharedItemViewSet.share, name='share'),
     url(r'^<int:pk>/move/$', views.ItemViewSet.move, name='move'),