README

Smarty Translate

Seamlessly integrate Symfony Translation with Smarty templates

This library adds a new Smarty block function and variable modifier called trans that integrates with any Symfony Translation Contracts compatible library. It allows you to easily translate your Smarty templates using the powerful Symfony translation system.

Installation

The recommended way to install this package is through Composer:

composer require imponeer/smarty-translate

Alternatively, you can manually include the files from the src/ directory in your project.

Setup

Basic Setup

To register the translation extension with Smarty, add the extension class to your Smarty instance:

// Create a Symfony Translator instance
$translator = new \Symfony\Component\Translation\Translator('en');
// ... configure your translator ...

// Create a Smarty instance
$smarty = new \Smarty();

// Register the translation extension
$smarty->addExtension(
    new \Imponeer\Smarty\Extensions\Translate\TranslationSmartyExtension($translator)
);

Using with Symfony Container

To integrate with Symfony, you can leverage autowiring, which is the recommended approach for modern Symfony applications:

# config/services.yaml
services:
    # Enable autowiring and autoconfiguration
    _defaults:
        autowire: true
        autoconfigure: true

    # Register your application's services
    App\:
        resource: '../src/*'
        exclude: '../src/{DependencyInjection,Entity,Tests,Kernel.php}'

    # Configure Smarty with the extension
    # The TranslationSmartyExtension will be autowired automatically
    \Smarty\Smarty:
        calls:
            - [addExtension, ['@Imponeer\Smarty\Extensions\Translate\TranslationSmartyExtension']]

Then in your application code, you can simply retrieve the pre-configured Smarty instance:

// Get the Smarty instance with the translation extension already added
$smarty = $container->get(\Smarty\Smarty::class);

For more information about Symfony's Dependency Injection Container, see the official documentation.

Using with PHP-DI

With PHP-DI container, you can take advantage of autowiring for a very simple configuration:

use function DI\create;
use function DI\get;

return [
    // Register the translator (assuming you have a translator factory elsewhere)
    // \Symfony\Contracts\Translation\TranslatorInterface::class => factory(...),

    // The Translation Extension is autowired by default when using class names

    // Configure Smarty with the extension
    \Smarty\Smarty::class => create()
        ->method('addExtension', get(\Imponeer\Smarty\Extensions\Translate\TranslationSmartyExtension::class))
];

Then in your application code, you can retrieve the Smarty instance:

// Get the configured Smarty instance
$smarty = $container->get(\Smarty\Smarty::class);

For more information about PHP-DI Container, see the official documentation.

Using with League Container

If you're using League Container, you can register the extension like this:

// Create the container
$container = new \League\Container\Container();

// Register the translator
$container->add(\Symfony\Contracts\Translation\TranslatorInterface::class, function() {
    $translator = new \Symfony\Component\Translation\Translator('en');
    // Configure translator...
    return $translator;
});

// Register Smarty with the translation extension
$container->add(\Smarty\Smarty::class, function() use ($container) {
    $smarty = new \Smarty\Smarty();
    // Configure Smarty...

    // Create and add the translation extension directly
    $extension = new \Imponeer\Smarty\Extensions\Translate\TranslationSmartyExtension(
        $container->get(\Symfony\Contracts\Translation\TranslatorInterface::class)
    );
    $smarty->addExtension($extension);

    return $smarty;
});

Then in your application code, you can retrieve the Smarty instance:

// Get the configured Smarty instance
$smarty = $container->get(\Smarty\Smarty::class);

For more information about League Container, see the official documentation.

Usage

Once the extension is registered, you can use it in your Smarty templates in two ways:

1. Using the Block Function

The block function allows you to translate blocks of text:

{* Basic usage *}
<{trans}>Hello, world!<{/trans}>

{* With a specific domain *}
<{trans domain='admin'}>_ADMIN_WELCOME<{/trans}>

{* With parameters *}
<{trans parameters=['name' => 'John']}>Hello, {name}!<{/trans}>

{* With domain and locale *}
<{trans domain='messages' locale='fr' parameters=['name' => 'John']}>Hello, {name}!<{/trans}>

2. Using the Variable Modifier

The variable modifier allows for inline translations:

{* Basic usage *}
<{"Hello, world!"|trans}>

{* With parameters *}
<{"Hello, {name}!"|trans:["name" => "John"]}>

{* With domain *}
<{"_ADMIN_WELCOME"|trans:[]:'admin'}>

{* With domain and locale *}
<{"Hello, {name}!"|trans:["name" => "John"]:'messages':'fr'}>

Supported Attributes

Both the block function and variable modifier support the following attributes:

Attribute	Description	Default Value
parameters	Key/value pairs to replace placeholders in translated strings	`[]`
domain	Translation domain (usually corresponds to translation file)	system default
locale	Specific locale to use for translation	current system locale

For the variable modifier, the syntax is: trans:PARAMETERS:DOMAIN:LOCALE

Testing

This package includes a comprehensive test suite. To run the tests:

composer test

Documentation

API documentation is automatically generated and available in the project's wiki. For more detailed information about the classes and methods, please refer to the project wiki.

Contributing

Contributions are welcome! Here's how you can contribute:

Fork the repository
Create a feature branch: git checkout -b feature-name
Commit your changes: git commit -am 'Add some feature'
Push to the branch: git push origin feature-name
Submit a pull request

Please make sure your code follows the PSR-12 coding standard and include tests for any new features or bug fixes.

If you find a bug or have a feature request, please create an issue in the issue tracker.

imponeer / smarty-translate

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