M4-scene.yaml
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# M4 业务Saga场景编排 (v2.2：新增 SCENE_CREATE_EMPLOYEE/SCENE_MODIFY_EMPLOYEE；含 SCENE_AUDIT_ORDER 审核 + SCENE_DEMO_STEPTYPES 全 stepType 演示)
# M8页面模板绑定SceneId，一套模板对应完整端到端业务流程。
sceneModel:
globalConfig:
engine: saga
consistency: eventual
maxRetry: 2
sceneDefinitions:
- sceneId: SCENE_CREATE_ORDER
sceneName: 用户创建订单完整流程
aggregateScope: [CustomerAggregate, ProductAggregate, OrderAggregate]
permissionBind: [order_create]
flowSteps:
- stepType: readOnlyCheck
bindAggregate: CustomerAggregate
- stepType: bindCommand
bindAggregate: OrderAggregate
bindCommand: CreateOrder
- stepType: return
- sceneId: SCENE_MODIFY_ORDER_ADDR
sceneName: 修改订单收货地址
aggregateScope: [OrderAggregate]
permissionBind: [order_modify_addr]
flowSteps:
- stepType: bindCommand
bindAggregate: OrderAggregate
bindCommand: ModifyOrderDeliveryAddress
- stepType: return
- sceneId: SCENE_CANCEL_ORDER
sceneName: 取消订单、归还库存
aggregateScope: [OrderAggregate, ProductAggregate]
permissionBind: [order_cancel]
flowSteps:
- stepType: bindCommand
bindAggregate: OrderAggregate
bindCommand: CancelOrder
- stepType: return
- sceneId: SCENE_AUDIT_ORDER
sceneName: 审核订单（bizSteps 闭指令集程序演示）
aggregateScope: [OrderAggregate, EmployeeAggregate]
permissionBind: [order_audit]
flowSteps:
- stepType: bindCommand
bindAggregate: OrderAggregate
bindCommand: AuditOrder
- stepType: return
- sceneId: SCENE_CREATE_CUSTOMER
sceneName: 新增客户主数据
aggregateScope: [CustomerAggregate]
permissionBind: [customer_create]
flowSteps:
- stepType: bindCommand
bindAggregate: CustomerAggregate
bindCommand: CreateCustomer
- stepType: return
- sceneId: SCENE_MODIFY_CUSTOMER
sceneName: 修改客户信息
aggregateScope: [CustomerAggregate]
permissionBind: [customer_modify]
flowSteps:
- stepType: bindCommand
bindAggregate: CustomerAggregate
bindCommand: ModifyCustomerInfo
- stepType: return
- sceneId: SCENE_CREATE_PRODUCT
sceneName: 新增商品档案
aggregateScope: [ProductAggregate]
permissionBind: [product_create]
flowSteps:
- stepType: bindCommand
bindAggregate: ProductAggregate
bindCommand: CreateProduct
- stepType: return
- sceneId: SCENE_MODIFY_PRODUCT_PRICE
sceneName: 修改商品售价
aggregateScope: [ProductAggregate]
permissionBind: [product_modify_price]
flowSteps:
- stepType: bindCommand
bindAggregate: ProductAggregate
bindCommand: ModifyProductPrice
- stepType: return
- sceneId: SCENE_CREATE_EMPLOYEE
sceneName: 新增员工
aggregateScope: [EmployeeAggregate]
permissionBind: [employee_create]
flowSteps:
- stepType: bindCommand
bindAggregate: EmployeeAggregate
bindCommand: CreateEmployee
- stepType: return
- sceneId: SCENE_MODIFY_EMPLOYEE
sceneName: 修改员工信息
aggregateScope: [EmployeeAggregate]
permissionBind: [employee_modify]
flowSteps:
- stepType: bindCommand
bindAggregate: EmployeeAggregate
bindCommand: ModifyEmployee
- stepType: return
# 演示场景：集中展示新增的全部通用 stepType（控制流/数据/Saga/EDA/人工）。
# 不落库（无 bindCommand），字段为合成变量（非 M1 领域字段），故不绑定 M8 表单模板；
# 前端对无模板场景提供"无表单直接运行"入口（空 payload），引擎逐条通用解释 flowSteps 产出可读 trace。可安全删除。
- sceneId: SCENE_DEMO_STEPTYPES
sceneName: 演示：全部 stepType 通用解释
aggregateScope: [OrderAggregate]
permissionBind: [order_create]
flowSteps:
- stepType: start
triggerType: manual
- stepType: assign
assignments:
- { targetField: qty, expression: "3" }
- { targetField: unitPrice, expression: "100" }
- stepType: script
expression: "qty * unitPrice"
assignTo: amount
- stepType: condition
when: "amount > 200"
then:
- stepType: assign
targetField: tier
expression: "'BIG'"
else:
- stepType: assign
targetField: tier
expression: "'SMALL'"
- stepType: switch
switchOn: "tier"
cases:
- equals: "BIG"
steps:
- { stepType: assign, targetField: discount, expression: "0.9" }
- equals: "SMALL"
steps:
- { stepType: assign, targetField: discount, expression: "1" }
default:
- { stepType: assign, targetField: discount, expression: "1" }
- stepType: while
when: "qty > 0"
maxIterations: 10
body:
- { stepType: assign, targetField: qty, expression: "qty - 1" }
- stepType: parallel
branches:
- steps:
- { stepType: callService, method: GET, endpoint: /ext/credit-check }
- steps:
- { stepType: timer, delayMs: 500 }
- { stepType: waitEvent, waitEvent: OrderCreatedEvent }
- stepType: userTask
role: 主管
# 无表单演示场景不设 approveParam，审批网关自动放行；真实场景可设 approveParam 卡在待审批（缺 true 即 PENDING）
- stepType: retry
maxAttempts: 2
body:
- { stepType: script, expression: "amount * discount", assignTo: payable }
- stepType: return