adding tasks-fast endpoint

atdb/taskdatabase/serializers.py

@@ -92,7 +92,7 @@ class TaskReadSerializer(serializers.ModelSerializer):
 
     class Meta:
         model = Task
-        fields = ('id','task_type','creationTime','filter','predecessor','successors',
+        fields = ['id','task_type','creationTime','filter','predecessor','successors',
                   'project','sas_id','priority','purge_policy','resume',
                   'workflow',
                   'stage_request_id',
@@ -100,8 +100,40 @@ class TaskReadSerializer(serializers.ModelSerializer):
                   'inputs','outputs','metrics','status_history',
                   'size_to_process', 'size_processed', 'total_processing_time',
                   'log_entries'
+                  ]
+        read_only_fields = fields
+
+
+class TaskReadSerializerFast(serializers.ModelSerializer):
+    """
+    status_history = serializers.StringRelatedField(
+        many=True,
+        required=False,
+    )
+
+    log_entries = serializers.StringRelatedField(
+        many=True,
+        required=False
     )
 
+    successors = serializers.StringRelatedField(
+        many=True,
+        required=False,
+    )
+    """
+    class Meta:
+        model = Task
+        fields = ['id','task_type','creationTime','filter','predecessor',
+                  'project','sas_id','priority','purge_policy','resume',
+                  'workflow',
+                  'stage_request_id',
+                  'status','new_status',
+                  'inputs','outputs','metrics',
+                  'size_to_process', 'size_processed', 'total_processing_time',
+
+                  ]
+        read_only_fields = fields
+
 
 class StatusSerializer(serializers.ModelSerializer):
 

atdb/taskdatabase/templates/taskdatabase/index.html

@@ -80,7 +80,7 @@
         {% include 'taskdatabase/pagination.html' %}
        </div>
     </div>
-    <p class="footer"> Version 1.0.0 (25 mar 2021 - 18:00)
+    <p class="footer"> Version 1.0.0 (26 mar 2021 - 19:00)
 
 </div>
 

atdb/taskdatabase/urls.py

@@ -31,6 +31,7 @@ urlpatterns = [
     # --- REST API ---
     path('tasks/', views.TaskListViewAPI.as_view(), name='tasks-api'),
     path('tasks/<int:pk>/', views.TaskDetailsViewAPI.as_view(), name='task-detail-view-api'),
+    path('tasks-fast/', views.TaskListViewAPIFast.as_view(), name='tasks-api-fast'),
 
     path('workflows/', views.WorkflowListViewAPI.as_view(), name='workflows-api'),
     path('workflows/<int:pk>/', views.WorkflowDetailsViewAPI.as_view(), name='workflow-detail-view-api'),

atdb/taskdatabase/views.py

@@ -30,6 +30,7 @@ from django.db.models import Q
 from .serializers import \
     TaskWriteSerializer, \
     TaskReadSerializer, \
+    TaskReadSerializerFast, \
     WorkflowSerializer,\
     LogEntrySerializer,\
     ConfigurationSerializer
@@ -312,6 +313,20 @@ class TaskListViewAPI(generics.ListCreateAPIView):
         else:
             return TaskWriteSerializer
 
+
+class TaskListViewAPIFast(generics.ListAPIView):
+    """
+    A pagination list of tasks, unsorted.
+    """
+    model = Task
+    queryset = Task.objects.all().order_by('-priority','id')
+    serializer_class = TaskReadSerializerFast
+
+    # using the Django Filter Backend - https://django-filter.readthedocs.io/en/latest/index.html
+    filter_backends = (filters.DjangoFilterBackend,)
+    filter_class = TaskFilter
+
+
 # example: /atdb/tasks/5/
 # calling this view serializes a task in the REST API
 class TaskDetailsViewAPI(generics.RetrieveUpdateDestroyAPIView):