move manager method in managers file

fet2020/tasks/managers.py

@@ -0,0 +1,31 @@
+from django.db import models
+from django.db.models import Q
+
+
+class TaskQuerySet(models.QuerySet):
+    def get_ordered(self):
+        return self.order_by("task_list")
+
+
+class TaskManager(models.Manager):
+    def get_tasks(self, user, completed, task_list, all_tasks):
+        # None ... assigned to all users
+        qs_all = self.get_queryset().get_ordered()
+        qs = qs_all.filter(assigned_to__id=user)
+
+        if all_tasks:
+            qs_tmp = qs_all.filter(
+                Q(assigned_to=None) & Q(task_list__users__id__exact=user)
+            )
+            qs = (qs | qs_tmp).distinct()
+
+        if not completed:
+            qs = qs.filter(completed=completed)
+
+        if task_list:
+            qs = qs.filter(task_list=task_list)
+
+        return qs
+
+    def get_queryset(self):
+        return TaskQuerySet(self.model, using=self._db)