Ajax Laravel返回视图500错误 [英] Ajax Laravel return view 500 Error

问题描述

我将幻灯片中的每个滑块值（Jquery Ui Slider）通过Ajax传递给我的控制器。

I am getting each slider value in slide (Jquery Ui Slider) via Ajax to my Controller.

Slider + Ajax看起来像这样：

The Slider + Ajax looks like this:

    $("#sliderNumCh").slider({
        range: "min",
        min: 0,
        max: 20,
        step: 1,
        value: numbersOfChapters,
        change : function(e, slider){
            $('#sliderAppendNumCh').empty();
            var sliderValue  = slider.value;
            var getSliderVal = document.getElementById('sliderValue').value = sliderValue;
            var getPrId      = document.getElementById('editId').value;

            $.ajaxSetup({
                headers: {
                    'X-CSRF-TOKEN': $('meta[name="csrf-token"]').attr('content')
                }
            });
            $.ajax({
                type: 'post',
                url: "{{ Route('editProductPost', $product->id) }}",
                headers: {
                    'X-Requested-With': 'XMLHttpRequest'
                },
                data: {
                    value: getSliderVal,
                    productId : getPrId
                },
                success: function (option) {
                    console.log(getSliderVal);
                }
            });
        },
    });

因此，我的确有这个想法：

Thus I do have this in my head:

<meta name="csrf-token" content="{{ csrf_token() }}">

我的路线如下：

Route::post('edit/{productID}', ['as' => 'editProductPost', 'uses' => 'ProductController@editProductPost']);

在我的Controller方法中，我称之为：

And in my Controller method I call it like this:

public function editProductPost(Request $request)
{
    $sliderValue = $request->get('value');
    Log::info($sliderValue);

    return view('productRom.edit', [
        'sliderValue' => $sliderValue
    ]);
}

Log :: info（$ sliderValue）告诉我，我确实得到了正确的结果每张幻灯片上的滑块值。

Log::info($sliderValue) tells me that I do get the correct slider value on each slide.

当我尝试返回编辑视图时，我在控制台中收到此错误：

When I try to return back to my edit view I get this error in the console:

POST http：// localhost / myApp / public / product / edit / 73 500（内部
服务器错误）

POST http://localhost/myApp/public/product/edit/73 500 (Internal Server Error)

我该如何解决这个问题？

How can I solve this?

编辑

由于我在视图中有这一行：

Since I have this line in my view:

<form action="{{ route($route) }}"...>

路由变量未定义，所以我在return语句中添加了这个。

The route variable was not defined so I added this in my return statement.

return view('productRom.edit', [
    'sliderValue' => $sliderValue,
    'route' => 'editProductPost'
]);

错误消失但我尝试访问 $ sliderValue 这样的变量：

The error is gone but when I try to access the $sliderValue variable like this:

<p>{{ isset($sliderValue) ? $sliderValue : "nothing" }}</p>

它打印我没有

修改

控制器：

    public function editProductPost(Request $request)
    {

        return response()->json([
            'sliderValue' => $request->get('value')
        ]);
   }

查看（ajax）：

        $.ajaxSetup({
            headers: {
                'X-CSRF-TOKEN': $('meta[name="csrf-token"]').attr('content')
            }
        });
        $.ajax({
            type: 'post',
            url: "{{ Route('editProductPost', $product->id) }}",
            headers: {
                'X-Requested-With': 'XMLHttpRequest'
            },
            data: {
                value: getSliderVal,
                productId : getPrId
            },
            success: function (response) {
                // check it has some data
                if (response.length) {
                    // spit it out
                    console.log(response);
                } else {
                    console.log('nothing returned');
                }
            }
        });

推荐答案

您的控制器方法应如下所示：

Your controller method should look like this:

public function editProductPost(Request $request)
{
    return response()->json([
        'sliderValue' => $request->get('value')
    ]);
}

您不应该将视图返回给ajax请求。

You shouldn't be returning a view to a ajax request.

您的ajax成功方法应如下所示（例如）：

Your ajax success method should look like this (for example):

// first arg is the data returned by the controller method
success: function (response) {
    console.log(response);
}

它应该输出这样的东西：

and it should ouput something like this:

{
    'sliderValue': 4
}

这篇关于Ajax Laravel返回视图500错误的文章就介绍到这了，希望我们推荐的答案对大家有所帮助，也希望大家多多支持IT屋！