TMSS-393: add more filters to subtask viewset in backend

SAS/TMSS/backend/src/tmss/tmssapp/viewsets/scheduling.py

@@ -4,7 +4,8 @@ This file contains the viewsets (based on the elsewhere defined data models and
 
 from django.shortcuts import get_object_or_404
 from rest_framework import viewsets
-from .lofar_viewset import LOFARViewSet, LOFARNestedViewSet, AbstractTemplateViewSet
+from .lofar_viewset import LOFARViewSet, LOFARNestedViewSet, AbstractTemplateViewSet, FILTER_OVERRIDES
+from .specification import NumberInFilter
 from .. import models
 from .. import serializers
 from django_filters import rest_framework as filters
@@ -131,6 +132,12 @@ class DataproductFeedbackTemplateViewSet(AbstractTemplateViewSet):
 
 
 class SubTaskFilter(filters.FilterSet):
+    id = NumberInFilter(field_name='id', lookup_expr='in')
+    id_min = filters.NumberFilter(field_name='id', lookup_expr='gte')
+    id_max = filters.NumberFilter(field_name='id', lookup_expr='lte')
+    state = filters.ModelMultipleChoiceFilter(field_name='state', queryset=models.SubtaskState.objects.all())
+    name = filters.CharFilter(field_name='task_blueprints__scheduling_unit_blueprint__name', lookup_expr='icontains')   # todo: correct name?
+
     class Meta:
         model = Subtask
         fields = {
@@ -139,6 +146,7 @@ class SubTaskFilter(filters.FilterSet):
             'stop_time': ['lt', 'gt'],
             'cluster__name': ['exact', 'icontains'],
         }
+        filter_overrides = FILTER_OVERRIDES
 
 
 class SubtaskViewSet(LOFARViewSet):