Laravel Ajax Post请求返回空数组

Question

So for this assignment, I need to Add a progress bar for a Dropify uploader in a Laravel application. But it cannot seem to find the session according to the key, when I print out the session with the key, all it does is return an empty Array ( ).

My Form

{{ Form::open(array('url' => route('admin.templates.store'), 'files' => true, 'id' => 'myForm')) }}
            <input type="hidden" value="myForm" name="{{ ini_get('session.upload_progress.name') }}">

                <div class="form-group{{ $errors->has('title') ? ' has-error' : '' }}">
                    {{ Form::text('name', null, ['class' => 'form-control', 'required' => 'required']) }}
                    {{ Form::label('name', 'Template name', ['class' => 'control-label']) }}
                    <i class="bar"></i>
                    {{ $errors->first('name', '<p class="help-block">:message</p>') }}
                </div>

                <div class="form-group{{ $errors->has('title') ? ' has-error' : '' }}">
                    {{ Form::textarea('description', null, ['class' => 'form-control', 'required' => 'required', 'size' => '1x1']) }}
                    {{ Form::label('description', 'Template omschrijving', ['class' => 'control-label']) }}
                    <i class="bar"></i>
                    {{ $errors->first('description', '<p class="help-block">:message</p>') }}
                </div>

                <div class="form-group{{ $errors->has('number_of_screens') ? ' has-error' : '' }}">
                    {{ Form::number('number_of_screens', '1', ['class' => 'form-control', 'required' => 'required']) }}
                    {{ Form::label('number_of_screens', 'Aantal objecten', ['class' => 'control-label']) }}
                    <i class="bar"></i>
                    {{ $errors->first('number_of_screens', '<p class="help-block">:message</p>') }}
                </div>

                <div class="form-group{{ $errors->has('templatefile') ? ' has-error' : '' }}">
                    {{ Form::label('templateFile', 'Browse') }}
                    {{ Form::file('templateFile' , ['class' => 'dropify', 'data-allowed-file-extensions' => 'zip', 'required' => 'required']) }}
                    <div id="bar_blank">
                       <div id="bar_color"></div>
                    </div>
                    <div id="status"></div>
                </div>

                <div class="button-container">
                    {{ Form::submit('Uploaden', ['class' => 'button button-medium']) }}
                </div>

            {{ Form::close() }}

My Ajax request

$.ajax({
                        type: "POST",
                        url: "{{route('admin.templates.uploadprogress')}}",
                        data: {
                            "data": $('#myForm').serialize(),
                            "_token": "{{ csrf_token() }}",
                        },
                        success: function() {
                            console.log("Geodata sent");
                        }
                    });

My route

Route::post('/uploadprogress', 'AdminTemplateController@callSessionData')->name('uploadprogress');

My controller function

public function callSessionData(Request $request){
    $key = ini_get("session.upload_progress.prefix") . "myForm";
    print_r($_SESSION);

    if (!empty($_SESSION[$key])) {
        $current = $_SESSION[$key]["bytes_processed"];
        $total = $_SESSION[$key]["content_length"];
        echo $current < $total ? ceil($current / $total * 100) : 100;
    }
    else {
        echo 100;
    }
}

I've asked more people before and they don't seem to know the issue either, so if someone could help me with this issue I would me more than happy.

Answer 1

a couple of things, in your ajax you shouldn't use php why don't you select the route already created in your form, it would be way more clean.

Maybe it returns nothing because this is not how you should access SESSION on laravel.

You should do it like this:

$yourSessionArray = $request->session()->get('key');

Please read about how to use SESSION with laravel on their docs.

Answer 2

In Url use url: "{{route('/uploadprogress')}}", and in Route use Route::get() not Route::post() like:

Route::get('/uploadprogress', 'AdminTemplateController@callSessionData')->name('uploadprogress');

and in Ajax use:

$.ajax({
    type: "POST",
    url: "/uploadprogress",
    data: {
        "data": $('#myForm').serialize(),
        "_token": "{{ csrf_token() }}",
    },
    success: function() 
    {
        console.log("Geodata sent");
    }
});