I am moving some code from a site into a module.

I have the following in my Page_controller on Page.php working.

class Page_Controller extends ContentController {
function RandomText($num=1) {
return DataObject::get("TextResource", "", "RAND()", "", $num);
}
}

But when try to move the class in many ways to a module SS can't seem to find it.

in seperate file(module/code/Randomtext_Controller.php) I have:
<?php

class RandomText_Controller extends Page_Controller {
function RandomText($num=1) {
return DataObject::get("TextResource", "", "RAND()", "", $num);
}

}

and tried various things like:

Object::add_extension('Page_Controller', 'RandomText_controller');

in the modules _config.php

Any ideas thanks in advance.

Just figured it out after more research:
just changed extends Page_controller to extends Extension, so:

<?php

class RandomText_Controller extends Extension {
function RandomText($num=1) {
return DataObject::get("TextResource", "", "RAND()", "", $num);
}

}