fix some bugs

apps/tickets/services.py

@@ -112,6 +112,46 @@ def refresh_group_dispatch_status(dispatch_id):
         dispatch.status=status
     return dispatch
 
+
+@transaction.atomic
+def resolve_group_dispatch_tickets(*, dispatch, user):
+    """Resolve every non-final ticket created by one group dispatch."""
+    dispatch = GroupDispatch.objects.select_for_update().select_related("unit").get(pk=dispatch.pk)
+    permitted = user.has_perm("tickets.change_ticket") or TicketPolicy.has_unit_permission(
+        user, dispatch.unit, "tickets.change_ticket"
+    )
+    if not (DispatchPolicy.can_view(user, dispatch) and permitted):
+        raise PermissionDenied("اجازه حل‌کردن تیکت‌های این ارسال گروهی را ندارید.")
+
+    now = timezone.now()
+    tickets = list(
+        dispatch.tickets.select_for_update().exclude(
+            status__in=(Ticket.Status.RESOLVED, Ticket.Status.CLOSED)
+        )
+    )
+    if not tickets:
+        return 0
+    previous_statuses = {ticket.pk: ticket.status for ticket in tickets}
+    for ticket in tickets:
+        ticket.status = Ticket.Status.RESOLVED
+        ticket.resolved_at = now
+        ticket.updated_at = now
+    Ticket.objects.bulk_update(tickets, ["status", "resolved_at", "updated_at"])
+    TicketEvent.objects.bulk_create([
+        TicketEvent(
+            ticket=ticket,
+            event_type=TicketEvent.Type.STATUS_CHANGED,
+            actor=user,
+            metadata={
+                "from": previous_statuses[ticket.pk],
+                "to": Ticket.Status.RESOLVED,
+                "group_dispatch_id": dispatch.pk,
+            },
+        )
+        for ticket in tickets
+    ])
+    return len(tickets)
+
 @transaction.atomic
 def claim_ticket(ticket_id,user):
     ticket=Ticket.objects.select_for_update().get(pk=ticket_id)