Drupal: warning: Illegal offset type in /var/www/html/avocado/modules/taxonomy/taxonomy.module on line 1150.

This error in Drupal was buging me for some time when using leach module in drupal:

* warning: Illegal offset type in isset or empty in /home/webadmin/mytroops.com/html/drupal/modules/taxonomy/taxonomy.module on line 1150.
* warning: Illegal offset type in /home/webadmin/mytroops.com/html/drupal/modules/taxonomy/taxonomy.module on line 1151.
* warning: Illegal offset type in /home/webadmin/mytroops.com/html/drupal/modules/taxonomy/taxonomy.module on line 1154.
* : Object of class stdClass could not be converted to string in /home/webadmin/mytroops.com/html/drupal/sites/all/modules/pathauto/pathauto_node.inc on line 223.
* warning: Illegal offset type in isset or empty in /home/webadmin/mytroops.com/html/drupal/modules/taxonomy/taxonomy.module on line 1150.
* warning: Illegal offset type in /home/webadmin/mytroops.com/html/drupal/modules/taxonomy/taxonomy.module on line 1151.
* warning: Illegal offset type in /home/webadmin/mytroops.com/html/drupal/modules/taxonomy/taxonomy.module on line 1154.

In the end, I found the following patch to work:

--- pathauto_node.inc.orig      2007-04-29 00:30:14.839833000 -0500
+++ pathauto_node.inc   2007-04-29 00:30:19.876147750 -0500
@@ -211,6 +211,9 @@ function node_get_placeholders($node) {
            break;
       }
     }
+    if(is_object($first_term_id)) {
+        $first_term_id=$first_term_id->tid;
+    }
     $term = taxonomy_get_term($first_term_id);

     $placeholders[t('[cat]')] = pathauto_cleanstring($term->name);

 This means simply add:

    if(is_object($first_term_id)) {
       $first_term_id=$first_term_id->tid;
   }

before line 221 that should be:  $term = taxonomy_get_term($first_term_id);

in pathauto_node.inc