尝试在Resources / lang / en中放置文件夹时出错：Laravel 5.2

Question

I have below code in my controller.

public function AllCountries() {
    $Countries = (new \App\DataAccess\CountryData())->GetAllCountries();
    app()->setLocale('fr');
    return view('Country.List')->with('Countries', $Countries->getData()->CountryList);
}

Definition of method to fetch data is below.

public function GetAllCountries() {
    return response()->json(['CountryList' => \App\Models\CountryModel::all()]);
}

Below is the screenshot which shows Translation array

Below is the screenshot that shows the View called by Controller has just one word to show translation only.

When I run the application, I get following error.

Use of undefined constant CountriesList - assumed 'CountriesList' (View: C:\xampp\htdocs\MyAccountesources\views\Country\List.blade.php)

Normally when we see websites which is not a default language set in our browser. We see a notification to translate the page on Page load. See the screenshot below.

But this does not come on my side. Although I can see French language but Translation notification is not coming. Why?

Answer 1

Read here for more about how localization works in Laravel:

https://laravel.com/docs/5.2/localization#introduction

If you really want to override the entire template, you can do this yourself:

$app->getLocale()
App::getLocale()

(but, I'm not suggesting this is usually a good idea - usually translating strings is a better idea.)

Those functions return the locale, so you can use this to fetch the appropriate view (e.g. placing all jp views inside a jp/ directory.)

You can use a ViewFactory's exists() method to check if it exists, and implement fallback logic as you like. It might make a lot of sense to implement this on your own controller base class (which would inherit from the framework one), and have all your controllers subclass this new base class. This way the logic can be shared.

Something roughly like this, for example:

namespace App\Http\Controllers;

use Illuminate\Foundation\Bus\DispatchesJobs;
use Illuminate\Routing\Controller as BaseController;
use Illuminate\Foundation\Validation\ValidatesRequests;
use Illuminate\Foundation\Auth\Access\AuthorizesRequests;
use Illuminate\Foundation\Auth\Access\AuthorizesResources;

class Controller extends BaseController
{
    use AuthorizesRequests, AuthorizesResources, DispatchesJobs, ValidatesRequests;

    protected function localeViewResponse($view, $data = [], $mergeData = [])
    {
        $factory = view();
        $locale = app()->getLocale();

        if ($view->exists($locale . '.' . $view)) {
            return $view->make($locale . '.' . $view, $data, $mergeData);
        }

        return $view->make($view, $data, $mergeData);
    }
}

That being said, again, you should really consider if you have to do this. Angad's method will make sense to other people familiar with Laravel, and is usually the better approach. If you're having problems with 'undefined constant', make sure you're quoting things correctly and try updating your question with the code you've attempted.