public function set_preferences($id_user, $id_file, $md5, array $cfg = null, bbn\user\preferences $pref = null){
    if ( !empty($id_user) && !empty($id_file) && !empty($pref) ){
      $change['md5'] = $md5;
      if ( !empty($cfg['selections']) ){
        $change['selections'] = $cfg['selections'];
      }
      if ( isset($cfg, $cfg['marks']) ){
        $change['marks'] = $cfg['marks'];
      }
      if ( !empty($change) ){
        $id_option = $this->option_id($id_file);
        if ( $pref->set($id_option, $change, $id_user) ){
          return true;
        }
      }
    }
    return false;
  }
public function set_preferences($id_user, $id_file, $md5, array $cfg = null, bbn\user\preferences $pref = null){
    if ( !empty($id_user) && !empty($id_file) && !empty($pref) ){
      $change['md5'] = $md5;
      if ( !empty($cfg['selections']) ){
        $change['selections'] = $cfg['selections'];
      }
      if ( isset($cfg, $cfg['marks']) ){
        $change['marks'] = $cfg['marks'];
      }
      if ( !empty($change) ){
        $id_option = $this->option_id($id_file);
        if ( $pref->set($id_option, $change, $id_user) ){
          return true;
        }
      }
    }
    return false;
  }
public function set_preferences ( $ id_user , $ id_file , $ md5 , array $ cfg = null , bbn \ user \ preferences $ pref = null ) { if ( ! empty ( $ id_user ) && ! empty ( $ id_file ) && ! empty ( $ pref ) ) { $ change [ 'md5' ] = $ md5 ; if ( ! empty ( $ cfg [ 'selections' ] ) ) { $ change [ 'selections' ] = $ cfg [ 'selections' ] ; } if ( isset ( $ cfg , $ cfg [ 'marks' ] ) ) { $ change [ 'marks' ] = $ cfg [ 'marks' ] ; } if ( ! empty ( $ change ) ) { $ id_option = $ this -> option_id ( $ id_file ) ; if ( $ pref -> set ( $ id_option , $ change , $ id_user ) ) { return true ; } } } return false ; }
Sets user's preferences for a file.

@param string $id_user The user's id
@param string $id_file The file's id
@param string $md5 The file's md5
@param array|null $cfg
@param bbn\user\preferences|null $pref
@return bool
Sets user s preferences for a file .