Ok. I've a Drupal 7 base jobs website in which jobs come and go. To keep the in coming backlink juice for SEO purpose we should redirect 301 the expired jobs(or anything) to some page.
My urls are suffixed with Unix timestamp in the end so that I can recognize a deleted job url alias without looking anywhere else.
I've handled two things:
- Deleted jobs get redirected with 301 code
- Expired but not deleted jobs too get redirected the same way but are visible to logged in users. It is due to initially the url's did not have a Unix timestamp in the end. So we can simply delete those url's after 6-8 months after Google is sure of the 301 redirect.
Some Settings
Before you use it, do two settings. Firstly go to System->Site Information and key-in : "check-for-expired-job" in "Default 404 (not found) page".
Secondly create a basic page informing users that the vacancy they are trying to look for has been deleted. Give it a URL of job-vacancy-has-been-deleted . I give title: "The Job Vacancy Has been Deleted" so it picked up the url otherwise whatever url you've got don't forget to change it in the module below.
The Module Code
<?php
function anu_redirect_expired_jobs_menu() {
$items['check-for-expired-job'] = array(//this url is the Default 404 (not found) page in Site Information
'title' => 'Check for expired job listing',
'access callback' => TRUE,
'page callback' => 'anu_redirect_expired_jobs_checkforexpired',
);
return $items;
}function anu_redirect_expired_jobs_menu_alter(&$items) {
$items['node/%node']['page callback'] = 'anu_redirect_expired_jobs_node_page_view';
}function anu_redirect_expired_jobs_checkforexpired() {
$url = drupal_get_destination();
if (anu_redirect_expired_jobs_url_expired($url['destination'])) {
unset($_GET['destination']);
drupal_goto('job-vacancy-has-been-deleted', array(), 301);
} else {
return MENU_NOT_FOUND; //Page not found
}
}function anu_redirect_expired_jobs_url_expired($url) {
//if the url ends with this pattern then the job has already been deleted
if (1 == preg_match('/-[0-9]{10}j$/', $url)) {
return true;
}
return false; //this isn't a job node type url
}function anu_redirect_expired_jobs_node_page_view($node) {
global $user;if($user->uid == 0) //logged in users should still be able to see these vacancies
{
if (in_array($node->type, array('central_government_vacancy', 'psu_vacancy', 'state_government_vacancy'))) {
//Check if has already expired
if (isset($node->field__expired_processed['und'][0]['value']) &&
$node->field__expired_processed['und'][0]['value'] == 1) {
drupal_goto('job-vacancy-has-been-deleted', array(), 301);
}
}
}
return node_page_view($node);
}
