How to implement permission-based multi-language support in Laravel

How to implement permission-based multi-language support in Laravel

Introduction:
In modern websites and applications, multi-language support is a very common requirement . For some complex systems, we may also need to dynamically display different language translations based on the user's permissions. Laravel is a very popular PHP framework that provides many powerful features to simplify the development process. This article will introduce how to implement permission-based multi-language support in Laravel and provide specific code examples.

Step 1: Configure multi-language support

First, we need to configure multi-language support in Laravel. Open the config/app.php file, find the 'locale' field, and set it to the default language. This language will become the basic language of our applications.

Next, find the 'locales' field in the config/app.php file and set it to the list of supported languages. For example, we can set it to English and French:

'locales' => [

'en',
'fr'

],

Then, we need to create the corresponding in the resources/lang directory language file. Laravel will automatically load the corresponding language file based on the current locale.

Step 2: Create a permission control table

In order to implement permission-based language display, we need to create a permission control table. We can create a table named permissions in the database to store the language identifiers corresponding to different permissions.

First, use Laravel's migration tool to generate a migration file and execute the following command:

php artisan make:migration create_permissions_table --create=permissions

Then, open the generated Migrate the file and modify the code to the following:

use IlluminateDatabaseMigrationsMigration;
use IlluminateDatabaseSchemaBlueprint;
use IlluminateSupportFacadesSchema;

class CreatePermissionsTable extends Migration
{

/**
 * Run the migrations.
 *
 * @return void
 */
public function up()
{
    Schema::create('permissions', function (Blueprint $table) {
        $table->id();
        $table->string('name');
        $table->string('key');
        $table->timestamps();
    });
}

/**
 * Reverse the migrations.
 *
 * @return void
 */
public function down()
{
    Schema::dropIfExists('permissions');
}

}

Run the migration command to create the table structure:

php artisan migrate

Step 3: Configure permissions language translation

We need to configure the permissions in the language file Add translation content related to permissions. Open the corresponding language file in the resources/lang directory and create a file named permissions.php.

Then, add the following code to the permissions.php file:

return [

'admin' => 'Admin',
'user' => 'User',
'guest' => 'Guest',

];

The 'admin', 'user' and 'guest' here are the language identifiers corresponding to different permissions, which can be adjusted according to actual needs.

Step 4: Write permission language translation function

Next, we need to write a function in the application to obtain the corresponding language translation based on user permissions.

Open the app/Helpers directory. If the directory does not exist, you can create one yourself.

Create a file named LanguageHelper.php in the Helpers directory and add the following code:

namespace AppHelpers;

use IlluminateSupportFacadesAuth;

class LanguageHelper
{

public static function getPermissionTranslation($key)
{
    $permissions = [
        'admin' => __('permissions.admin'),
        'user' => __('permissions.user'),
        'guest' => __('permissions.guest'),
    ];

    $user = Auth::user();
    $role = $user->role->key;

    if (array_key_exists($role, $permissions)) {
        return $permissions[$role];
    }

    return '';
}

}

The getPermissionTranslation function here is used to obtain the language translation of the corresponding permissions based on the user's role.

Step 5: Use permission language translation in the view

Finally, we can use permission language translation in the view. Open the view file and add the following code:

{{ AppHelpersLanguageHelper::getPermissionTranslation(Auth::user()->role->key) }}

The Auth::user()->role->key here is the key to obtain the current user role, and obtain the corresponding permission translation through LanguageHelper.

Conclusion:

Through the above steps, we successfully implemented permission-based multi-language support. When a user's permissions change, the language translations on the page are refreshed accordingly. Laravel provides many powerful functions and tools to help us achieve various needs more easily. I hope this article will be helpful to you in implementing permission-based multi-language support in Laravel, and I wish you can write better applications.

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