/** * Removes the elements / modules handled by the current installer. * Use the reference param to add a human readable logging. * * @param string &$strReturn * * @return bool */ public function remove(&$strReturn) { //delete the page-element $objElement = class_module_pages_element::getElement("eventmanager"); if ($objElement != null) { $strReturn .= "Deleting page-element 'eventmanager'...\n"; $objElement->deleteObjectFromDatabase(); } else { $strReturn .= "Error finding page-element 'eventmanager', aborting.\n"; return false; } /** @var class_module_eventmanager_event $objOneObject */ foreach (class_module_eventmanager_event::getObjectList() as $objOneObject) { $strReturn .= "Deleting object '" . $objOneObject->getStrDisplayName() . "' ...\n"; if (!$objOneObject->deleteObjectFromDatabase()) { $strReturn .= "Error deleting object, aborting.\n"; return false; } } //delete the module-node $strReturn .= "Deleting the module-registration...\n"; $objModule = class_module_system_module::getModuleByName($this->objMetadata->getStrTitle(), true); if (!$objModule->deleteObjectFromDatabase()) { $strReturn .= "Error deleting module, aborting.\n"; return false; } //delete the tables foreach (array("em_event", "em_participant") as $strOneTable) { $strReturn .= "Dropping table " . $strOneTable . "...\n"; if (!$this->objDB->_pQuery("DROP TABLE " . $this->objDB->encloseTableName(_dbprefix_ . $strOneTable) . "", array())) { $strReturn .= "Error deleting table, aborting.\n"; return false; } } return true; }