Redirect after save

[matjazp]

Hi!

How to write a module (where to hook) if I would like to use page edit link in front-end and perform redirect after successful Save (returning url could also be the same page the link is displayed):

$url = $config->urls->admin . "page/delete/?id={$page->id}&modal=1&redirectUrlAfterSave=somewhere";

echo "<a href='$url>edit</a>";