Hello,

in a page type extending SiteTree I am overwriting doPublish() to perform some checks before and then decide wether to publish or not. Now I am looking for a way to get a message back to the user if publishing was blocked. Even I searched for two days now I only found the manipulation of the response description yet, which is displayed as a black, fading message box. This would be fine for me, but customer finds it not "alerting" enough, so I am urgently looking for a way, to send any custom HTML / Javascript signal.

See the Code, might explain it better:

public function doPublish() {
	if ( check_something() ) {
		#this works fine, but isn't enough
		Controller::curr()->getResponse()->setStatusCode(500, 'Not Published!');
		
		# here i would like to send any HTML / javascript signal back to the CMS admin ui.
		
		return false;
	}
	parent::doPublish();
	return true;
}

I would be very happy for any hint or idea!

I wish you nice holidays,

cheers

SF.

I know it is an old post, but did you ever found an answer? as i'm trying to do the same thing