feat: base 开始编写ticketMixin可自动挂载

apps/wf/mixins.py

@@ -0,0 +1,31 @@
+from apps.wf.models import Workflow, Ticket, State
+from rest_framework.exceptions import ParseError
+from apps.wf.services import WfService
+
+class TicketMixin:
+    workflow_key = None
+    ticket_auto_submit_on_update = True
+    ticket_data_save_keys = []
+
+    def get_workflow_key(self, instance):
+        return self.workflow_key
+    
+    def should_create_ticket(self, instance):
+        return True
+    
+    def perform_create(self, serializer):
+        ins = serializer.save()
+        if self.workflow_key:
+            try:
+                wf = Workflow.objects.get(key=self.workflow_key)
+            except Exception as e:
+                raise ParseError(f'工作流{self.workflow_key}异常:{e}')
+            source_state: State = WfService.get_workflow_start_state(wf)
+            transitions = WfService.get_state_transitions(source_state)
+            if transitions.count() == 1:
+                transition = transitions.first()
+                
+            else:
+                raise ParseError(f'工作流{self.workflow_key}异常:起始状态{source_state}有多个后续状态;不可直接创建')
+
+