/**
  * Return system columns
  *
  * @access public
  * @param void
  * @return array
  */
 function getSystemColumns()
 {
     return array_merge(parent::getSystemColumns());
 }
 /**
  * Return system columns
  *
  * @access public
  * @param void
  * @return array
  */
 function getSystemColumns()
 {
     return array_merge(parent::getSystemColumns(), array('company_id', 'picture_file', 'timezone', 'user_id'));
 }
 /**
  * Return system columns
  *
  * @access public
  * @param void
  * @return array
  */
 function getSystemColumns()
 {
     return array_merge(parent::getSystemColumns(), array('client_of_id', 'logo_file', 'timezone', 'hide_welcome_info'));
 }
 /**
  * Return system columns
  *
  * @access public
  * @param void
  * @return array
  */
 function getSystemColumns()
 {
     return array_merge(parent::getSystemColumns(), array('assigned_to_company_id', 'assigned_to_user_id', 'completed_by_id', 'from_template_id'));
 }
 /**
  * Return system columns
  *
  * @access public
  * @param void
  * @return array
  */
 function getSystemColumns()
 {
     return array_merge(parent::getSystemColumns(), array('milestone_id'));
 }
 /**
  * Return system columns
  *
  * @access public
  * @param void
  * @return array
  */
 function getSystemColumns()
 {
     return array_merge(parent::getSystemColumns(), array('message_id', 'conversation_id', 'in_reply_to_id', 'account_id', 'uid', 'content_file_id'));
 }
 /**
  * Return system columns
  *
  * @access public
  * @param void
  * @return array
  */
 function getSystemColumns()
 {
     return array_merge(parent::getSystemColumns(), array('type_id', 'special_id'));
 }
 /**
  * Return system columns
  *
  * @access public
  * @param void
  * @return array
  */
 function getSystemColumns()
 {
     return array_merge(parent::getSystemColumns(), array('checked_out_by_id', 'was_auto_checked_out', 'mail_id', 'type'));
 }
 /**
  * Return system columns
  *
  * @access public
  * @param void
  * @return array
  */
 function getSystemColumns()
 {
     return array_merge(parent::getSystemColumns(), array('object_subtype', 'parent_id', 'assigned_to_user_id', 'assigned_to_company_id', 'completed_by_id', 'milestone_id', 'started_by_id', 'assigned_by_id', 'from_template_id', 'order'));
 }