perf: 重构 ticket (#8281)

* perf: 重构 ticket

* perf: 优化 tickets

* perf: 暂存

* perf: 建立 ticket model

* perf: 暂存一下

* perf: 修改 tickets

* perf: 修改 import

* perf: 修改model

* perf: 暂存一波

* perf: 修改...

* del process_map field

* 工单重构

* 资产 应用对接前端

* perf: 修改 ticket

* fix: bug

* 修改迁移文件

* 添加其他api

* 去掉process_map

* perf: 优化去掉 signal

* perf: 修改这里

* 修改一点

* perf: 修改工单

* perf: 修改状态

* perf: 修改工单流转

* step 状态切换

* perf: 修改 ticket open

* perf: 修改流程

* perf: stash it

* 改又改

* stash it

* perf: stash

* stash

* migrate

* perf migrate

* 调整一下

* 修复bug

* 修改一点

* 修改一点

* 优化一波

* perf: ticket migrations

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

apps/tickets/models/flow.py

@@ -5,17 +5,18 @@ from django.utils.translation import ugettext_lazy as _
 
 from users.models import User
 from common.mixins.models import CommonModelMixin
+
 from orgs.mixins.models import OrgModelMixin
 from orgs.models import Organization
 from orgs.utils import tmp_to_org, get_current_org_id
-from ..const import TicketType, TicketApprovalLevel, TicketApprovalStrategy
+from ..const import TicketType, TicketLevel, TicketApprovalStrategy
 
 __all__ = ['TicketFlow', 'ApprovalRule']
 
 
 class ApprovalRule(CommonModelMixin):
     level = models.SmallIntegerField(
-        default=TicketApprovalLevel.one, choices=TicketApprovalLevel.choices,
+        default=TicketLevel.one, choices=TicketLevel.choices,
         verbose_name=_('Approve level')
     )
     strategy = models.CharField(
@@ -56,8 +57,8 @@ class TicketFlow(CommonModelMixin, OrgModelMixin):
         default=TicketType.general, verbose_name=_("Type")
     )
     approval_level = models.SmallIntegerField(
-        default=TicketApprovalLevel.one,
-        choices=TicketApprovalLevel.choices,
+        default=TicketLevel.one,
+        choices=TicketLevel.choices,
         verbose_name=_('Approve level')
     )
     rules = models.ManyToManyField(ApprovalRule, related_name='ticket_flows')