*/
private function getConnection( $i, array $groups = null ) {
$groups = $groups === null ? $this->groups : $groups;
*/
private function getConnection( $i, array $groups = null ) {
$groups = $groups === null ? $this->groups : $groups;
*/
public function getReadConnection( array $groups = null ) {
$groups = $groups === null ? $this->groups : $groups;
*/
public function getReadConnection( array $groups = null ) {
$groups = $groups === null ? $this->groups : $groups;