fix: gofmt, ErrConflict error code, ErrInvalidState as func

model/order.go

@@ -16,9 +16,9 @@ type Order struct {
 	ServiceTime time.Time   `json:"service_time"`
 	Duration    int         `json:"duration"`
 	Address     string      `json:"address"`
-	ProviderID  *string    `json:"provider_id"`
-	CreatedAt   time.Time  `json:"created_at"`
-	UpdatedAt   time.Time  `json:"updated_at"`
+	ProviderID  *string     `json:"provider_id"`
+	CreatedAt   time.Time   `json:"created_at"`
+	UpdatedAt   time.Time   `json:"updated_at"`
 }
 
 type CreateOrderRequest struct {
@@ -47,10 +47,11 @@ func (e *AppError) Error() string {
 
 // 预定义错误
 var (
-	ErrNotFound       = NewAppError("not_found", "订单不存在", 404)
-	ErrConflict       = NewAppError("conflict", "订单已被其他服务者接单", 409)
-	ErrInvalidState   = func(op string) *AppError {
-		return NewAppError("invalid_state", "订单已取消，无法" + op, 400)
-	}
+	ErrNotFound   = NewAppError("not_found", "订单不存在", 404)
+	ErrConflict   = NewAppError("already_accepted", "订单已被其他服务者接单", 409)
 	ErrStatusConflict = NewAppError("conflict", "订单状态已变更，请重试", 409)
 )
+
+func ErrInvalidState(op string) *AppError {
+	return NewAppError("invalid_state", "订单已取消，无法"+op, 400)
+}