在Laravel Translatable BootForms中配置lang

Question

I'm new to Laravel Translatable BootForms , and I was wondering something.

When I use this code :

{!!
    TranslatableBootForm::text('Nom', 'name')
        ->required()
!!}

The render is as follows :

I don't know where this language list comes from.

I only want to list some languages specified in my database, as I do with this workaround :

@foreach($availableLangs as $availableLang)
    {!!
        TranslatableBootForm::text('Nom', 'name')
        ->renderLocale($availableLang['locale'])
    !!}
@endforeach

Which gives me this :

My two questions are :

• Where does this language list come from ?
• How can I replace it by my own language list ?

Answering the first question may lead to an automatic answer for the second, though)

Answer 1

In Laravel, you should always try to read the Service Providers, they provide important clues about the project structures. Let's try to follow the trail of the function calls:

TranslatableBootForm is a facade and it resolves to and instance of translatable-bootform from the Service Container according to this line:

protected static function getFacadeAccessor() { return 'translatable-bootform'; }

Now, in the file TranslatableBootFormsServiceProvider.php we can see that translatable-bootform is an instance of TranslatableBootForm . So when you call TranslatableBootForm::text , you will be using the Facade which resolves to an instance of TranslatableBootForm

Opening the TranslatableBootForm class, we cannot find the text method, so there should be a __call method. The __call method always returns whatever is returned from the method render . So that's where the action is happening.

Reading the code there, you will find that it gets the locales from a method called locales and it will intersect it with the func_get_args() function to get whatever languages you pass to it. So renderLocale or simply render will do the same thing.

The method locales just returns an array which is by default empty in the class. If we return back to the TranslatableBootFormsServiceProvider we will see that there's an important line:

$formBuilder->setLocales($this->getLocales());

Which gets the locales from Translatable\\TranslatableWrapper which is just a wrapper around this file in another package: https://github.com/dimsav/laravel-translatable/blob/master/src/Translatable/Translatable.php

Looking at the configuration file in the laravel-translatable package, we can see the languages: https://github.com/dimsav/laravel-translatable/blob/master/src/config/translatable.php

Solutions

Now, you can simply copy the file translatable.php in your config folder and set your locales.

Or, you create a new service provider MyTranslatableBootFormsServiceProvider

class MyTranslatableBootFormsServiceProvider extends TranslatableBootFormsServiceProvider 
{

    /**
     * Get Translatable's locales.
     * 
     * @return array
     */
    protected function getLocales()
    {
        // You can return a config key
        // return config('yourconfig.locales');
        // Or directly the array containing the languages
        return ['en', 'fr', 'nl'];

    }
}

Then, you will use this provider in your config/app.php instead of the original TranslatableBootFormsServiceProvider

Disclaimer: I didn't try the code, you might have a bug, but you get the idea now how to find your way around Laravel packages.