Zend_Translate plugin (with caching)

This code snippet provides a Zend Framework (1.5.0) plugin that will auto-detect the browser language setting and make translations available to views via Zend_Registry.

MyPlugin_Language class

/**
 * Requires ZF 1.5.x or above
*/
class MyPlugin_Language extends Zend_Controller_Plugin_Abstract
{
    public function preDispatch(Zend_Controller_Request_Abstract $request)
    {
        $locale = new Zend_Locale();

        $frontendOptions = array('cache_id_prefix' => 'MyApp', 'lifetime' => 86400);
        $backendOptions = array('cache_dir' => 'cache');
        $cache = Zend_Cache::factory('Core', 'File', $frontendOptions, $backendOptions);
        Zend_Translate::setCache($cache);
      
        $options = array('scan' => Zend_Translate::LOCALE_DIRECTORY);

        $translate = new Zend_Translate('csv', 'languages', 'auto', $options);

        if (!$translate->isAvailable($locale->getLanguage())) {
            $locale->setLocale('en');
        }

        $translate->setLocale($locale);
        
        setcookie('lang', $locale->getLanguage(), null, '/');
        
        Zend_Registry::set('locale', $locale->getLanguage());
        Zend_Registry::set('Zend_Translate', $translate);
    }
}

Then when in a view script you can simply call:

$this->translate('stringToTranslate');

If you need translation in a helper you need to add a setView function e.g.

class Zend_View_Helper_Preferences
{
    public $view;

    public function setView(Zend_View_Interface $view)
    {
        $this->view = $view;
    }
    
    public function preferences()
    {
        $content =<<<EOH
<div class="title"><label>{$this->view->translate('timeZone')}</label></div>
  <div>
    <select name="_timeZone">
      <option value="Europe/London">Europe/London</option>
    </select>
  </div>
</div>

EOH;
        return $content;
    }
}

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Zend_Translate plugin (with caching)

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MyPlugin_Language class