private function render_head()
{
/*
* begin HTML rendering...
*/
dom::init($this);
dom::push_body();
/*
* this displays the last error that mySQL encountered, if any,
* and displays it. else it displays the user message if any.
*
* This works pretty well assuming that a single query/operation is
* mode per POST.
*/
$mysql_error = $this->get_error();
$message = $this->get_message();
if ($mysql_error) {
dom::push_div('error');
dom::h3('', $mysql_error);
dom::pop();
} else {
if ($message) {
dom::push_div('message');
dom::h3('', $message);
dom::pop();
}
}
/*
* clear message and error
*/
$this->set_error(null);
$this->set_message(null);
}
