問題描述

我有一些這樣的代碼

    $editStuState = StuAtt::where('studentId' , '=' , $id)->first();
    $editStuState -> leave +=1;
    $editStuState -> present = $editStuState -> present-1;
    $editStuState->update();
                            //OR
    $editStuState->save();
    return 'this is good';

我無法保存或更新我的數據，當我刪除更新和保存相關行時，它可以打印文本.

I can't save or Update my data, when I remove Update and Save related line it can print text.

這是dd($editStuState)數據

StuAtt {#382 ▼
  #table: "stu_attendance"
  #connection: "mysql"
  #primaryKey: "id"
  #keyType: "int"
  +incrementing: true
  #with: []
  #withCount: []
  #perPage: 15
  +exists: true
  +wasRecentlyCreated: false
  #attributes: array:7 [▼
    "id" => "7"
    "studentId" => "1"
    "present" => "2"
    "absent" => "1"
    "leave" => "10"
    "created_at" => "2018-04-16 11:17:41.176898"
    "updated_at" => "2018-04-16 06:47:41.000000"
  ]
  #original: array:7 [▼
    "id" => "7"
    "studentId" => "1"
    "present" => "2"
    "absent" => "1"
    "leave" => "10"
    "created_at" => "2018-04-16 11:17:41.176898"
    "updated_at" => "2018-04-16 06:47:41.000000"
  ]
  #changes: []
  #casts: []
  #dates: []
  #dateFormat: null
  #appends: []
  #dispatchesEvents: []
  #observables: []
  #relations: []
  #touches: []
  +timestamps: true
  #hidden: []
  #visible: []
  #fillable: []
  #guarded: array:1 [?]
}

我也從 laravel 5.6 得到這個錯誤

I also got this error form laravel 5.6 it

InvalidArgumentException
Trailing data

推薦答案

如果您使用 Postgres，則必須向模型添加一些行.這是因為 Postgres 中的 TIME WITH TIMEZONE.

If you are using Postgres you have to add some lines to your Model(s). It happens because of TIME WITH TIMEZONE in Postgres.

另請閱讀 Date Mutators 因為 Laravel 已經支持此功能，只需在您的模型中放置以下行以覆蓋該模型的默認日期格式:https://laravel.com/docs/5.7/eloquent-mutators#date-mutators

Please also read Date Mutators as Laravel already has support for this baked in, simply put below line in your Model to override the default dateFormat for that model: https://laravel.com/docs/5.7/eloquent-mutators#date-mutators

轉到您的應用程序/模型(在 app 文件夾下，exp. User，SomeModel)添加以下行:

Go to your App/Model (under app folder, exp. User, SomeModel) add below line:

protected $dateFormat = 'Y-m-d H:i:sO';

最佳

這篇關于保存模型時 Laravel 模型尾隨數據的文章就介紹到這了，希望我們推薦的答案對大家有所幫助，也希望大家多多支持html5模板網！