Create query for all timeGrids

aleksis/apps/lesrooster/frontend/components/validity_range/validityRange.graphql

@@ -112,4 +112,21 @@ mutation deleteTimeGrid($id: ID!) {
   deleteTimeGrid(id: $id) {
     ok
   }
-}
\ No newline at end of file
+}
+
+query timeGrids($orderBy: [String], $filters: JSONString) {
+  items: timeGrids(orderBy: $orderBy, filters: $filters) {
+    id
+    group {
+      id
+      shortName
+      name
+    }
+    validityRange {
+      id
+      name
+      dateStart
+      dateEnd
+    }
+  }
+}

aleksis/apps/lesrooster/schema/__init__.py

@@ -67,6 +67,7 @@ class Query(graphene.ObjectType):
     slots = FilterOrderList(SlotType)
     timebound_course_configs = FilterOrderList(TimeboundCourseConfigType)
     validity_ranges = FilterOrderList(ValidityRangeType)
+    time_grids = FilterOrderList(TimeGridType)
     lessons = FilterOrderList(LessonType)
 
     course_objects_for_group = graphene.List(