[solved] Change current language in custom Plugin

[taenny]

Hello,

i have been trying to solve this one on my own for hours now (forum and google search didn't help much), so maybe someone can give me a hint.

I am developing a plugin extending vmCustomPlugin that uses the hook plgVmOnUserInvoice to send an e-mail to a supplier (not vendor), who can create products in the frontend.
As this "supplier" does not necessarily speak the same language as the customer, who triggers plgVmOnUserInvoice with "his" language, the current language has to be changed accordingly.
The problem is, that I do not manage to change the current language within my plugin, so that JTEXT translates to the changed language.

In general strings are translated correctly with JTEXT::_(); - when triggered "in german" it translates to german etc.
The corresponding translations are included in the plugin language folder and work (for instance language/de-DE/de.DE.plg_vmcustom_notifysupplier.ini ...)

In my code snippet below vmdebug first evaluates to "German (DE-CH-AT)" and then to "English (United Kingdom)" but JTEXT still translates into german.
Various posts across the internet imply that in order to change the current language it has to be loaded by JLanguage::load() but I'm not sure whether this also applies to plugins - I have tried (see below) without success.
In the constructor the translation files are already included by $this->loadLanguage(); so I wonder if that is truly necessary.

Am I missing something obvious? Any help is greatly appreciated!

Code Select Expand

<?php
// no direct access
defined( '_JEXEC' ) or die( 'Restricted access' );

if (!class_exists('vmCustomPlugin')) require(JPATH_VM_PLUGINS . DS . 'vmcustomplugin.php');
if (!class_exists('VmModel')) require(JPATH_VM_ADMINISTRATOR.DS.'helpers'.DS.'config.php');

class plgVmCustomNotifySupplier extends vmCustomPlugin
{
  public function __construct(&$subject, $config)
  {
          parent::__construct($subject, $config);
          $this->loadLanguage();
  }

 function plgVmOnUserInvoice($orderDetails, &$data)
 {
    $language =& JFactory::getLanguage();

    vmdebug($language->getName());
    $language->setLanguage("en-GB");
    $language->load('plg_vm_notifysupplier', JPATH_PLUGINS."/vmcustom/notifysupplier", 'en-GB', true, true);       
    vmdebug($language->getName());

    $subject = JText::_('PLG_VMCUSTOM_NOTIFYSUPPLIER_MAIL_SUBJECT');
  
    return null;
 }
}

[taenny]

OK I figured it out.
3 lines of code -  ... did no longer see the wood for the trees...

Code Select Expand


$language = JFactory::getLanguage();
$language->setLanguage("en-GB");
$this->loadLanguage();