public function updateDescription($descr)
    {
        $app = Application::getFacadeApplication();
        $this->fvDescription = $descr;
        $this->save();
        $this->logVersionUpdate(self::UT_DESCRIPTION);
        $fve = new FileVersionEvent($this);
        $app->make(EventDispatcherInterface::class)->dispatch('on_file_version_update_description', $fve);
    }
public function updateDescription($descr)
    {
        $app = Application::getFacadeApplication();
        $this->fvDescription = $descr;
        $this->save();
        $this->logVersionUpdate(self::UT_DESCRIPTION);
        $fve = new FileVersionEvent($this);
        $app->make(EventDispatcherInterface::class)->dispatch('on_file_version_update_description', $fve);
    }
public function updateDescription ( $ descr ) { $ app = Application :: getFacadeApplication ( ) ; $ this -> fvDescription = $ descr ; $ this -> save ( ) ; $ this -> logVersionUpdate ( self :: UT_DESCRIPTION ) ; $ fve = new FileVersionEvent ( $ this ) ; $ app -> make ( EventDispatcherInterface :: class ) -> dispatch ( 'on_file_version_update_description' , $ fve ) ; }
Update the description of the file.

@param string $descr
Update the description of the file .