Override autocomplete provided by module to not suggest current user(self)

Question

I hope it's pretty clear from my question title itself. I want to override autocomplete provided by module such as privatemessage to not suggest the current user(self) who is trying to send message. I tried doing some research about it but all I got was about overriding JS file.

I have used automcomplete with my custom form long ago & when I prepared the JSON, I removed current user from the list. But what to do if I have to do the same for some contributed module ?

Answer 1

This is the working code

• Add this to your custom module
• Replace MYMODULENAME with your custom module name

function MYMODULENAME_query_privatemsg_autocomplete_alter($query) {
  global $user;
  $query->condition('u.uid', $user->uid, '<>');
}

Answer 2

If you look at the code in Privatemsg module, the autocomplete callback function provides a hook hook_privatemsg_autocomplete_alter(). You can use this hook and unset the current logged in user from the $matches array.

I don't have Privatemsg module installed in any of my current projects, so I cannot test it, but the following code should do it:

function YOURMODULE_privatemsg_autocomplete_alter(&$matches, $names, $fragment) {
  global $user;
  unset($matches[$user->uid]);
}