php - Dynamically generate translatable columns using metadata -

i make translatable behavior entities using metadata.

i have class article

class article implements translatableinterface {  /**  * @heidantranslatable  */ private $title;  /**  * @heidanlocale  */ private $locale;   public function gettitle() {     return $this->title; }  public function settitle($title) {     $this->title = $title;     return $this; }  public function getlocale() {     return $this->locale; }  public function setlocale($locale) {     $this->locale = $locale;     return $this; } 

i have kind of gedmo doctrine extension behavior create in database columns depending on property , allowed locales.

for example, entity article, 2 columns created : title_fr, title_en.

i'd stuff bridged doctrine behavior , made loadclassmetadatalistener

class loadclassmetadatalistener {  /**  * @param loadclassmetadataeventargs $eventargs  */ public function loadclassmetadata(loadclassmetadataeventargs $eventargs) {     $metadata = $eventargs->getclassmetadata();      $metadata         ->mapfield(array('fieldname' => 'title_fr', 'type' => 'text'))     ;  } 

when run doctrine:schema:update --force have following error :

[reflectionexception]
property heidan\corebundle\entity\article::$title_fr not exist

so guess said property title_fr not exist, , that's right.

i not want set manually properties (private $title_fr, private $title_en, private $content_fr, private $content_en) entities.

is there way achieve behavior far ?

thanks lot help.