fix:修复账期结算不同共创用户校验

@@ -1111,6 +1111,36 @@ func (cooperationContractService *CooperationContractService) UpdateCooperationC
 			// 变更承接人
 			var undertakersChanged string
 			for i, undertaker := range cooperationContractSaved.Undertakers {
+				if undertaker.Referrer == nil {
+					undertaker.Referrer = &domain.Referrer{
+						UserId:     0,
+						UserBaseId: 0,
+						Roles:      nil,
+						Orgs:       nil,
+						Org:        nil,
+						Department: nil,
+						Company:    nil,
+						UserInfo:   nil,
+						UserType:   0,
+						UserName:   "",
+						UserPhone:  "",
+					}
+				}
+				if undertaker.Salesman == nil {
+					undertaker.Salesman = &domain.Salesman{
+						UserId:     0,
+						UserBaseId: 0,
+						Roles:      nil,
+						Orgs:       nil,
+						Org:        nil,
+						Department: nil,
+						Company:    nil,
+						UserInfo:   nil,
+						UserType:   0,
+						UserName:   "",
+						UserPhone:  "",
+					}
+				}
 				undertakersChanged = undertakersChanged + strconv.FormatInt(int64(i), 10) + "（" + undertaker.UserName + "，" + undertaker.Referrer.UserName + "," + undertaker.Salesman.UserName + "）"
 			}
 			undertakerChangeTemp2 := "【" + undertakersChanged + "】"

@@ -125,9 +125,11 @@ func (creditAccountService *CreditAccountService) CreateCreditAccount(createCred
 		return nil, application.ThrowError(application.INTERNAL_SERVER_ERROR, err.Error())
 	} else {
 		// 校验共创用户是否一致
-		for i, _ := range dividendsEstimates {
-			if dividendsEstimates[i].DividendsUser.UserId != dividendsEstimates[i+1].DividendsUser.UserId {
-				return nil, application.ThrowError(application.INTERNAL_SERVER_ERROR, "请勾选同一个共创用户进行结算")
+		if len(dividendsEstimates) > 0 {
+			for i, _ := range dividendsEstimates {
+				if dividendsEstimates[i].DividendsUser.UserId != dividendsEstimates[0].DividendsUser.UserId {
+					return nil, application.ThrowError(application.INTERNAL_SERVER_ERROR, "请勾选同一个共创用户进行结算")
+				}
 			}
 		}