private static function __requiresInstallation($name)
    {
        self::__buildExtensionList();
        $id = self::$_extensions[$name]['id'];

        return (is_numeric($id) ? false : true);
    }
private static function __requiresInstallation($name)
    {
        self::__buildExtensionList();
        $id = self::$_extensions[$name]['id'];

        return (is_numeric($id) ? false : true);
    }
private static function __requiresInstallation ( $ name ) { self :: __buildExtensionList ( ) ; $ id = self :: $ _extensions [ $ name ] [ 'id' ] ; return ( is_numeric ( $ id ) ? false : true ) ; }
Determines whether the current extension is installed or not by checking
for an id in `tbl_extensions`

@param string $name
The name of the Extension Class minus the extension prefix.
@return boolean
Determines whether the current extension is installed or not by checking for an id in tbl_extensions