/**
  * Return manager instance
  *
  * @access protected
  * @param void
  * @return UserPasswords 
  */
 function manager()
 {
     if (!$this->manager instanceof UserPasswords) {
         $this->manager = UserPasswords::instance();
     }
     return $this->manager;
 }
 /**
  * Delete rows that match specific conditions. If $conditions is NULL all rows from table will be deleted
  *
  * @access public
  * @param string $conditions Query conditions
  * @return boolean
  */
 function delete($condition = null)
 {
     if (isset($this) && instance_of($this, 'UserPasswords')) {
         return parent::delete($condition);
     } else {
         return UserPasswords::instance()->delete($condition);
     }
     // if
 }