public static function get_instance()
{
if (!isset(self::$instance)) {
self::$instance = new HaddockProjectOrganisation_ConfigDBManager();
}
return self::$instance;
}
/**
* Returns the variable that is saved in one of the config files
* for this module.
*
* The element names string should be like UNIX file names, e.g.
*
* '/foo/bar/gaz'
*
* First the method checks if a value corresponding to the string for
* this module has been set in the config DB.
*
* If a value is not found, the XML files are searched.
* This should not be allowed to happen on a live site as it might be slow.
* Cache the values in the DB file using the 'assemble-config-db' script.
*/
protected function get_config_value($element_names_str, $required = TRUE)
{
$cdbm = HaddockProjectOrganisation_ConfigDBManager::get_instance();
$cdb_str = $this->get_module_prefix_string() . $element_names_str;
if ($cdbm->exists($cdb_str)) {
return $cdbm->fetch($cdb_str);
}
#$element_names_str = ltrim('/', $element_names_str);
return $this->get_config_value_arr(explode('/', $element_names_str), $required);
}