modx插件404并显示数据库中不存在的内容

Question

I need to show some data in modx 404 event.

I have some files in a directory. When i got a specific url in 404 event i wanted to show a file from a specific directory which is not a modx resource.

I was not able to show any custom output. how can i do that?

in plugin i have set plugin event to onPageNotFind and i have tried like this:

global $modx;
if ($modx->event->name == 'OnPageNotFound') {
   $out = file_get_contents('my_file');
   $modx->event->output( $out);
}

i also tried like this:

global $modx;
if ($modx->event->name == 'OnPageNotFound') {
   $out = file_get_contents('my_file');
   $strContent = &$modx->resource->_output;
   $strContent = $out;
}

Answer 1

If you are only firing your plugin on OnPageNotFound there is no need to add the check for the event name. That's only necessary if your plugin handles multiple events with different code.

You also cannot use $modx->resource->output because this plugin fires when MODX has not found a resource.

Your plugin could be as simple as this:

$url = 'http://www.example.com/404.html';
$modx->sendRedirect($url);

That will just redirect the user to your static file when MODX cannot find a match for the requested url.

More on modX::sendRedirect(): http://rtfm.modx.com/revolution/2.x/developing-in-modx/other-development-resources/class-reference/modx/modx.sendredirect