如何在Laravel Controller中使用方法重载？

问题描述：

I am trying to use method overloading feature in my laravel controller class. here is my methods

  # Load Customer Balance View
  public function createBalance()
  {
    return view('customer.balance');
  }

  # Load Customer Balance View
  public function createBalance($CustomerID)
  {
    // show balance of the the defined customer
  }

Here is my route -

    // customer balance
    Route::get('Customer/Balance', 'CustomerController@createBalance');

    Route::get('Customer/Balance/{ID}', 'CustomerController@createBalance');

But it shows the error -

FatalErrorException in CustomerController.php line 45:
Cannot redeclare App\Http\Controllers\CustomerController::createBalance()

Any solution please ?

我正在尝试在laravel控制器类中使用方法重载功能。这是我的方法 p>

  #Load Customer Balance View 
 public function createBalance（）
 {
 return view（'customer.balance'）; 
} 
  
＃加载客户余额视图
公共功能createBalance（$ CustomerID）
 {
 //显示已定义客户的余额
} 
  code>  pre> 
 
  这是我的路线 -   p> 
 
 
  //客户余额
 Route :: get（'Customer / Balance'，'CustomerController @ createBalance'）; 
 
 Route ::  get（'Customer / Balance / {ID}'，'CustomerController @ createBalance'）; 
  code>  pre> 
 
 但它显示错误 -   p> 
 
  CustomerController.php第45行中的
  FatalErrorException：
无法重新声明App \ Http \ Controllers \ CustomerController :: createBalance（）
  code>  pre> 
 
 请问任何解决方案？   p> 
  div>

答

Consider use default parameters:

  public function createBalance($CustomerID=null)
  {
    if ($CustomerID==null)
      return view('customer.balance');
    else
      // show balance of the the defined customer
  }

And change your route to:

Route::get('Customer/Balance/{CustomerID?}', 'CustomerController@createBalance');

Adding a "?" after the argument, Laravel understands you're passing an optional parameter.

答

You need to have different method names. This doesn't follow basic routing conventions either. The first createBalance method should probably be the index method.

答

I think createBalance() method alredy exist in your CustomerController so you should create new method or different name method and also change in route file with new method name.

如何在Laravel Controller中使用方法重载？

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