如何将数组值从一个方法传递给 Laravel 中的另一个方法？

Question

我正在尝试将数组的值从一种方法传递到 Laravel 中的另一种方法。基本上我有一个名为 orderingSubmission 的方法，它从 Ajax POST 执行中接收一个数组（该部分工作正常），但是我试图将数组值传递给另一个名为 orderingSubmissionReceipt 所以我终于可以在订单摘要页面上呈现视图了。我正在使用会话，但它们似乎不起作用。谁能告诉我我错过了什么？

这是我的 route.php

Route::get('/', function() { return redirect('home'); });
Route::get('home', 'HomeController@home');
Route::post('home', 'HomeController@activateCustomer');
Route::post('order-summary', 'HomeController@OrderingSubmission');
Route::get('order-summary', 'HomeController@orderingSubmissionReceipt');

HomeController.php

public function orderingSubmission(Request $request)
{
    $allValues2 = $request->get('users'); // This code works fine. It gets the array
    Log::info('This is orderingSubmission.....: ' . print_r($allValues2, true));

   Session::set('allValues2',$allValues2);

}

public function orderingSubmissionReceipt()
{
    $allValues3 = Session::get('allValues2'); // This code is not getting the session value
    Log::info('This is orderingSubmissionReceipt.....: ' . print_r($allValues3, true));

    return view('order-summary', [
        'people' => $allValues3
    ]);
}

Answer 1

您可以使用 $request->session->put() 和 $request->session->get() 如下：不要忘记添加 在 orderingSubmissionReceipt 中请求 $request 函数声明。

public function orderingSubmission(Request $request)
{
    $allValues2 = $request->get('users'); // This code works fine. It gets the array
    Log::info('This is orderingSubmission.....: ' . print_r($allValues2, true));
    $request->session()->put('allValues2',$allValues2);

}

public function orderingSubmissionReceipt(Request $request)
{

    $allValues3 = $request->session()->get('allValues2'); // This code is not getting the session value
    Log::info('This is orderingSubmissionReceipt.....: ' . print_r($allValues3, true));

    return view('order-summary', [
        'people' => $allValues3
    ]);
}

Answer 2

你可以像这样创建类变量：

class A
{
private $allValues2 = array();

    function orderingSubmission(Request $request)
    {
        $this->allValues2 = $request->get('users');

        //the rest of the code in this method..
    }

    function orderingSubmissionReceipt()
    {
        //if you want to make a local variable first, you can do it like this:
        $allValues3 = $this->allValues2;
        Log::info('This is orderingSubmissionReceipt.....: ' . print_r($allValues3, true));

        //or, you can just use the variable directly, like this:
        Log::info('This is orderingSubmissionReceipt.....: ' . print_r($this->allValues2, true));
    }
}

Answer 3

您可以使用session() 辅助方法以防Session 不起作用或显示任何错误。

public function orderingSubmission(Request $request)
{
    $allValues2 = $request->get('users');
    session()->set('allValues2', $allValues2);
    Log::info('Value set to session: ' . session()->get('allValues2')); 
}

public function orderingSubmissionReceipt()
{
    Log::info('Value get from session: ' . session()->get('allValues2'));     
    $allValues3 = session()->get('allValues2');

    return view('order-summary', [
        'people' => $allValues3
    ]);
}  

Answer 4

你应该这样做：

use Illuminate\Http\Request; //You probably already have that!

public function orderingSubmission(Request $request)
{
    $allValues2 = $request->get('users');
    $request->session()->put('allValues2', $allValues2);
    Log::info('Value set to session: ' . $request->session()->get('allValues2'));
}

public function orderingSubmissionReceipt(Request $request)
{
    Log::info('Value get from session: ' . $request->session()->get('allValues2'));
    $allValues3 = $request->session()->get('allValues2');

    return view('order-summary', [
        'people' => $allValues3
    ]);
}

更多：https://laravel.com/docs/5.1/session