+ $this->selectAdd("
+ (
+ SELECT
+ count(user_id)
+ FROM
+ {$cgm}
+ WHERE
+ {$this->tableName()}.id = {$cgm}.group_id
+ )
+ AS group_member_count
+ ");
+
+ $this->_join .= "
+ LEFT JOIN
+ core_group_member
+ ON
+ core_group.id = core_group_member.group_id
+ Left JOIN
+ core_person
+ ON
+ core_user_id = core_person.id
+ ";
+
+