feat: dbms新增支持工单流程审批

server/internal/flow/application/procdef.go

@@ -0,0 +1,75 @@
+package application
+
+import (
+	"context"
+	"mayfly-go/internal/flow/domain/entity"
+	"mayfly-go/internal/flow/domain/repository"
+	"mayfly-go/pkg/base"
+	"mayfly-go/pkg/errorx"
+	"mayfly-go/pkg/model"
+)
+
+type Procdef interface {
+	base.App[*entity.Procdef]
+
+	GetPageList(condition *entity.Procdef, pageParam *model.PageParam, toEntity any, orderBy ...string) (*model.PageResult[any], error)
+
+	// 保存流程实例信息
+	Save(ctx context.Context, def *entity.Procdef) error
+
+	// 删除流程实例信息
+	DeleteProcdef(ctx context.Context, defId uint64) error
+}
+
+type procdefAppImpl struct {
+	base.AppImpl[*entity.Procdef, repository.Procdef]
+
+	procinstApp Procinst `inject:"ProcinstApp"`
+}
+
+// 注入repo
+func (p *procdefAppImpl) InjectProcdefRepo(procdefRepo repository.Procdef) {
+	p.Repo = procdefRepo
+}
+
+func (p *procdefAppImpl) GetPageList(condition *entity.Procdef, pageParam *model.PageParam, toEntity any, orderBy ...string) (*model.PageResult[any], error) {
+	return p.Repo.GetPageList(condition, pageParam, toEntity, orderBy...)
+}
+
+func (p *procdefAppImpl) Save(ctx context.Context, def *entity.Procdef) error {
+	if err := entity.ProcdefStatusEnum.Valid(def.Status); err != nil {
+		return err
+	}
+	if def.Id == 0 {
+		if p.GetBy(&entity.Procdef{DefKey: def.DefKey}) == nil {
+			return errorx.NewBiz("该流程实例key已存在")
+		}
+		return p.Insert(ctx, def)
+	}
+
+	// 防止误修改key
+	def.DefKey = ""
+	if err := p.canModify(def.Id); err != nil {
+		return err
+	}
+
+	return p.UpdateById(ctx, def)
+}
+
+func (p *procdefAppImpl) DeleteProcdef(ctx context.Context, defId uint64) error {
+	if err := p.canModify(defId); err != nil {
+		return err
+	}
+	return p.DeleteById(ctx, defId)
+}
+
+// 判断该流程实例是否可以执行修改操作
+func (p *procdefAppImpl) canModify(prodefId uint64) error {
+	if activeInstCount := p.procinstApp.CountByCond(&entity.Procinst{ProcdefId: prodefId, Status: entity.ProcinstActive}); activeInstCount > 0 {
+		return errorx.NewBiz("存在运行中的流程实例，无法操作")
+	}
+	if suspInstCount := p.procinstApp.CountByCond(&entity.Procinst{ProcdefId: prodefId, Status: entity.ProcinstSuspended}); suspInstCount > 0 {
+		return errorx.NewBiz("存在挂起中的流程实例，无法操作")
+	}
+	return nil
+}