enhance(fee):改进维护费归属判断逻辑，同时完成维护费部分接口的测试。

controller/maintenance_fee.go

@@ -25,6 +25,7 @@ func InitializeMaintenanceFeeController(router *gin.Engine) {
 
 	MaintenanceFeeController.Router.GET("/maintenance/fee", security.EnterpriseAuthorize, listMaintenanceFees)
 	MaintenanceFeeController.Router.POST("/maintenance/fee", security.EnterpriseAuthorize, createMaintenanceFeeRecord)
+	MaintenanceFeeController.Router.PUT("/maintenance/fee/:mid", security.EnterpriseAuthorize, modifyMaintenanceFeeRecord)
 }
 
 func listMaintenanceFees(c *gin.Context) {
@@ -70,7 +71,7 @@ type _FeeCreationFormData struct {
 	ParkId string          `json:"parkId" form:"parkId"`
 	Name   string          `json:"name" form:"name"`
 	Fee    decimal.Decimal `json:"fee" form:"fee"`
-	Memo   string          `json:"memo" form:"memo"`
+	Memo   *string         `json:"memo" form:"memo"`
 }
 
 func createMaintenanceFeeRecord(c *gin.Context) {
@@ -100,3 +101,37 @@ func createMaintenanceFeeRecord(c *gin.Context) {
 	}
 	result.Created("新维护费记录已经创建。")
 }
+
+type _FeeModificationFormData struct {
+	Fee  decimal.Decimal `json:"fee" form:"fee"`
+	Memo *string         `json:"memo" form:"memo"`
+}
+
+func modifyMaintenanceFeeRecord(c *gin.Context) {
+	result := response.NewResult(c)
+	requestFee := c.Param("mid")
+	formData := new(_FeeModificationFormData)
+	c.BindJSON(formData)
+	userSession, err := _retreiveSession(c)
+	if err != nil {
+		result.Unauthorized(err.Error())
+		return
+	}
+	sure, err := service.MaintenanceFeeService.EnsureFeeBelongs(userSession.Uid, requestFee)
+	if err != nil {
+		result.Error(http.StatusInternalServerError, err.Error())
+		return
+	}
+	if !sure {
+		result.Unauthorized("所操作维护费记录不属于当前用户。")
+		return
+	}
+	newFeeState := new(model.MaintenanceFee)
+	copier.Copy(newFeeState, formData)
+	err = service.MaintenanceFeeService.ModifyMaintenanceFee(*newFeeState)
+	if err != nil {
+		result.Error(http.StatusInternalServerError, err.Error())
+		return
+	}
+	result.Success("指定维护费条目已更新。")
+}