CiviCRM Community Forums (archive)

Hi guys (and gals)! Just a brief question: is there a way for extensions to define custom (new) hooks? And if not (I haven't found one): Will there ever be one? How would it work?

Perfect, thanks, Lobo! I didn't know it was that simple. In particular, I didn't expect that you could call the CRM_Utils_Hook::singleton()->invoke(...) from outside the Hook class.

Just so I get this straight: this is meant to be used for communicating between e.g. two extensions? Especially if they don't know (of) each other? For example, extension A would introduce a new hook, and extensions B and C could implement it...

Pretty much like this:

class CRM_Utils_MyHook {
  static function myhook($op, $objectName, $id, &$params) {
    return CRM_Utils_Hook::singleton()->invoke(4, $op, $objectName, $id, $params, $op, 'civicrm_myhook');
  }
}

It does, I tried!