Laravel: Sending Mail with Queue ignores Locale - email

Question

My Email template looks like this:
#component('mail::message')
# {{ $helloUser }}
#lang('welcome.message')
This
\App::setLocale('de);
$activeMail = new \App\Mail\Register\Activate($user);
\Mail::to($user)->send($activeMail);
will send an mail with German text.
However, when I use a queue
\App::setLocale('de);
$activeMail = new \App\Mail\Register\Activate($user);
\Mail::to($user)->queue($activeMail);
The mail is send in English, which is the default language of my app.
How can I send a message in German with the queue without changing the default language?

Answer 1

In Laravel 5.6. the Mailable class has gotten a locale method to care for this:
$activeMail = new \App\Mail\Register\Activate($user);
$locale = $user->lang; // de
\Mail::to($user)->locale($locale)->queue($activeMail);
For Laravel < 5.6 one could save the text in the mail object
class Activate extends Mailable
{
public $mainText
public function __construct()
{
$this->mainText = __('welcome.message');
}
}
and change the template to
#component('mail::message')
# {{ $helloUser }}
{{$mainText}}
The difference is that $mainText is the string from the language when the mail object was created, while #lang('welcome.message') would be the string of the default language from your app.

Answer 2

Since Laravel 5.7, there's something that can help you with that. Take a look at Localizing Mailables in the documentation.
use Illuminate\Contracts\Translation\HasLocalePreference;
class User extends Model implements HasLocalePreference
{
/**
* Get the user's preferred locale.
*
* #return string
*/
public function preferredLocale()
{
return $this->locale;
}
}