feat: 工单多级审批 + 模版创建 (#6640)

* feat: 工单多级审批 + 模版创建

* feat: 工单权限处理

* fix: 工单关闭后 再审批bug

* perf: 修改一点

Co-authored-by: feng626 <1304903146@qq.com>
Co-authored-by: ibuler <ibuler@qq.com>

apps/tickets/filters.py

@@ -0,0 +1,18 @@
+from django_filters import rest_framework as filters
+from common.drf.filters import BaseFilterSet
+
+from tickets.models import Ticket
+
+
+class TicketFilter(BaseFilterSet):
+    assignees__id = filters.UUIDFilter(method='filter_assignees_id')
+
+    class Meta:
+        model = Ticket
+        fields = (
+            'id', 'title', 'type', 'status', 'applicant', 'assignees__id',
+            'applicant_display',
+        )
+
+    def filter_assignees_id(self, queryset, name, value):
+        return queryset.filter(ticket_steps__ticket_assignees__assignee__id=value)