/**
* Return a textual error message for a NModel error code
*
* @param integer error code
*
* @return string error message, or false if the error code was
* not recognized
*/
function errorMessage($value)
{
static $errorMessages;
if (!isset($errorMessages)) {
$errorMessages = array(N_DAO_ERROR => 'unknown error', N_DAO_OBJECT_NOT_FOUND => 'the object could not be found', N_DAO_OBJECT_EXISTS => 'an object by that name already exists', N_DAO_FILE_NOT_FOUND => 'the file could not be found', N_DAO_CLASS_NOT_FOUND => 'the class could not be found', N_DAO_CLASS_ERROR => 'unkown class error', N_DAO_RECORD_EXISTS => 'an info object by that name already exists', N_DAO_RECORD_NOT_FOUND => 'the class record could not be found');
}
if (NModel::isError($value)) {
$value = $value->getCode();
}
return isset($errorMessages[$value]) ? $errorMessages[$value] : $errorMessages[IO_ERROR];
}