[patch] Multi-site delete

Hi there,

I’ve recently encountered a problem with the user-groups plugin. Relations between the user and the user-groups weren’t deleted if the plugin is running on a multi-site installation. I’ve developed a patch to fix this problem (see below). Please consider adding this patch to improve the experience for multi-site users.

--- user-groups.svn.php	2013-12-05 14:25:33.000000000 -0100
+++ user-groups.php	2013-12-05 14:31:53.000000000 -0100
@@ -18,6 +18,8 @@

 	function KWS_User_Groups() {

+		add_submenu_page(null, '',  '', 'manage_options',  'fixUserGroupsMultiSite', array($this, 'fixUserGroupsMultiSite'));
+
 		add_filter('manage_users_columns', array(&$this, 'add_manage_users_columns'), 15, 1);
 		add_action('manage_users_custom_column', array(&$this, 'user_column_data'), 15, 3);

@@ -55,11 +57,41 @@
 		add_action( 'edit_user_profile', array(&$this, 'edit_user_user_group_section'), 99999);

 		/* Cleanup stuff */
+		add_action( 'remove_user_from_blog', array(&$this, 'delete_term_relationships'));
 		add_action( 'delete_user', array(&$this, 'delete_term_relationships'));
 		add_filter( 'sanitize_user', array(&$this, 'disable_username'));

 	}

+	function fixUserGroupsMultiSite() {
+		if(!class_exists('KWS_User_Groups')) {
+			echo 'User Groups plugin not found, download it <a href="https://www.ads-software.com/extend/plugins/user-groups/">here</a>.';
+		} else {
+			echo '<div class="wrap"><h2>Fixing user groups</h2>' . PHP_EOL . '<pre><code>';
+			echo 'starting the cleaning of user groups' . PHP_EOL;
+			$blogs = get_blog_list(0, 'all');
+			foreach($blogs as $blog) {
+				echo 'switched to:' . $blog[ 'blog_id'] . '(' . $blog['domain'] . ')' . PHP_EOL;
+				switch_to_blog($blog['blog_id']);
+				$terms = get_terms( 'user-group', array( 'hide_empty' => false ) );
+				foreach($terms as $term) {
+					echo 'user group found: ' . $term->name . PHP_EOL;
+					$objects = get_objects_in_term($term->term_id, 'user-group');
+
+					foreach($objects as $userid) {
+						if (!is_user_member_of_blog($userid)) {
+							echo 'user ' . $userid . ' is not a member of this blog!' . PHP_EOL;
+							wp_delete_object_term_relationships($userid, 'user-group');
+						}
+					}
+				}
+			}
+			echo 'ending the cleaning of user groups' . PHP_EOL;
+			echo '</code></pre></div>' . PHP_EOL;
+			restore_current_blog();
+		}
+	}
+
 	function get_user_user_groups($user = '') {
 		if(is_object($user)) { $user_id = $user->ID; } elseif(is_int($user*1)) { $user_id = $user*1; }
 		if(empty($user)) { return false;}

https://www.ads-software.com/plugins/user-groups/