Laravel-使用Ajax更改语言环境 [英] Laravel - Change locale using Ajax

问题描述

我正在尝试使用Ajax更改系统的语言，但是在用户决定再次更改之前，我不知道如何更改语言环境并使之成为永久语言.当前，app.php中的语言环境设置为'en'，我想使用选择菜单将其更改为'nl'.我尝试使用App::setLocale($value)，但是不幸的是，它没有任何作用.我该怎么做?

I am trying to change the language of my system using ajax but I don't know how to change the locale and make it permanent until the user decides to change again. Currently, the locale in the app.php is set to 'en' and I want to change it to 'nl' using a select menu. I tried using App::setLocale($value) but that does not do anything, unfortunately. How can I accomplish this?

表格

<form method="POST" action="{{ route('change_language',['id' => Auth::user()->id]) }}" class="form-row my-3">
  {{ csrf_field() }}
  {{ method_field('PATCH') }}
  <div class="form-group col-9">
     <h4 class="mb-0">{{ __('Language') }}</h4>
     <p class="m-0 sub-text">{{ __('Change the language of the dashboard') }}</p>
  </div>
  <div class="form-group col-3 d-flex justify-content-end align-items-center">
    <select name="language" id="language" class="form-control">
       <option value="nl" {{ ( Auth::user()->language == 'nl') ? 'selected' : '' }}>{{ __('Dutch') }}</option>
        <option value="en" {{ ( Auth::user()->language == 'en') ? 'selected' : '' }}>{{ __('English') }}</option>
    </select>
  </div>
  <div class="col-md-12 text-right">
    <p class="text-success saved-message" style="display: none">{{ __('The language has changed!') }}</p>
  </div>
</form>

AJAX

$('#language').change(function() {
  $.ajax({
    headers: {'X-CSRF-TOKEN': $('meta[name="csrf-token"]').attr('content')},
    url: '{{ route('change_language', ['id' => Auth::user()->id]) }}',
    type: 'PATCH',
    data: {"language": $(this).children("option:selected").val()},
    success: function(data) {
             $('.saved-message').fadeIn();
                setTimeout(function() {
                   $('.saved-message').fadeOut();
                }, 1000);
           }
      })
});

路线

Route::patch('/dashboard/user/{id}/language', 'PreferencesController@changeLanguage')->name('change_language');

控制器方法

public function changeLanguage(Request $request, $id)
    {
        $user = User::findOrFail($id);

        $user->language = $request->get('language');
        $user->save();

        App::setLocale($request->language);
    }

推荐答案

您必须具有某种中间件，因为会话(语言)不是持久性的.您可以尝试这样的操作(语言中间件):

You must have some kind of middleware because session (language) is not persistent. You can try something like this (Language Middleware):

public function handle($request, Closure $next)
    {
        if (auth()->check()) {
            $language = auth()->user()->language;
            if (empty($language)) {
                $language = config('app.fallback_locale');
            }
            app()->setLocale($language);
            Session::put('applocale', $language);
            auth()->user()->language = $language;
            auth()->user()->save();
            return $next($request);
        }
        if (Session::has('applocale')) {
            app()->setLocale(Session::get('applocale'));
        } else {
            app()->setLocale(config('app.fallback_locale'));
            Session::put('applocale', config('app.fallback_locale'));
        }
        return $next($request);
    }

如您所见，我将每个用户的语言存储在db中.在控制器中，您可能会遇到这样的情况:

as you can see I store language per user in db. In controller you could have something like this:

        if (auth()->check()) {
            auth()->user()->language = $language;
            auth()->user()->save();
            return back();
        } 
            Session::put('applocale', $language);
            return back();
        }

尝试考虑这样的事情

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