UPDATE `engine4_activity_actiontypes` SET `body` = '{item:$subject} posted a {itemChild:$object:topic:$child_id} in the event {item:$object}: {body:$body}' WHERE `engine4_activity_actiontypes`.`type` = 'event_topic_create';
UPDATE `engine4_activity_actiontypes` SET `body` = '{item:$subject} replied to a {itemChild:$object:topic:$child_id} in the event {item:$object}: {body:$body}' WHERE `engine4_activity_actiontypes`.`type` = 'event_topic_reply';
UPDATE `engine4_activity_actiontypes` SET `commentable` = '0' WHERE `engine4_activity_actiontypes`.`type` = 'event_topic_create';
UPDATE `engine4_activity_actiontypes` SET `commentable` = '0' WHERE `engine4_activity_actiontypes`.`type` = 'event_topic_reply';
