Defined (1)

The class is defined in the following location(s).

/classes/class-s2-multisite.php  

class s2_multisite { 
/** === WP Multisite specific functions === */ 
    /** 
    Handles subscriptions and unsubscriptions for different blogs on WPMU installs 
    */ 
    function wpmu_subscribe() { 
        global $mysubscribe2; 
        // subscribe to new blog 
        if ( !empty($_GET['s2mu_subscribe']) ) { 
            $sub_id = intval($_GET['s2mu_subscribe']); 
            if ( $sub_id >= 0 ) { 
                switch_to_blog($sub_id); 
 
                $user_ID = get_current_user_id(); 
 
                // if user is not a user of the current blog 
                if ( !is_user_member_of_blog($user_ID, $sub_id) ) { 
                    // add user to current blog as subscriber 
                    add_user_to_blog($sub_id, $user_ID, 'subscriber'); 
                    // add an action hook for external manipulation of blog and user data 
                    do_action_ref_array('subscribe2_wpmu_subscribe', array($user_ID, $sub_id)); 
                } 
 
                // get categories, remove excluded ones if override is off 
                if ( 0 == $mysubscribe2->subscribe2_options['reg_override'] ) { 
                    $all_cats = $mysubscribe2->all_cats(true, 'ID'); 
                } else { 
                    $all_cats = $mysubscribe2->all_cats(false, 'ID'); 
                } 
 
                $cats_string = ''; 
                foreach ( $all_cats as $cat ) { 
                    ('' == $cats_string) ? $cats_string = "$cat->term_id" : $cats_string .= ", $cat->term_id"; 
                    update_user_meta($user_ID, $mysubscribe2->get_usermeta_keyname('s2_cat') . $cat->term_id, $cat->term_id); 
                } 
                if ( empty($cats_string) ) { 
                    delete_user_meta($user_ID, $mysubscribe2->get_usermeta_keyname('s2_subscribed')); 
                } else { 
                    update_user_meta($user_ID, $mysubscribe2->get_usermeta_keyname('s2_subscribed'), $cats_string); 
                } 
            } 
        } elseif ( !empty($_GET['s2mu_unsubscribe']) ) { 
            // unsubscribe from a blog 
            $unsub_id = intval($_GET['s2mu_unsubscribe']); 
            if ( $unsub_id >= 0 ) { 
                switch_to_blog($unsub_id); 
 
                $user_ID = get_current_user_id(); 
 
                // delete subscription to all categories on that blog 
                $cats = get_user_meta($user_ID, $mysubscribe2->get_usermeta_keyname('s2_subscribed'), true); 
                $cats = explode(', ', $cats); 
                if ( !is_array($cats) ) { 
                    $cats = array($cats); 
                } 
 
                foreach ( $cats as $id ) { 
                    delete_user_meta($user_ID, $mysubscribe2->get_usermeta_keyname('s2_cat') . $id); 
                } 
                delete_user_meta($user_ID, $mysubscribe2->get_usermeta_keyname('s2_subscribed')); 
 
                // add an action hook for external manipulation of blog and user data 
                do_action_ref_array('subscribe2_wpmu_unsubscribe', array($user_ID, $unsub_id)); 
 
                restore_current_blog(); 
            } 
        } 
 
        if ( !is_user_member_of_blog($user_ID) ) { 
            $user_blogs = get_active_blog_for_user($user_ID); 
            if ( is_array($user_blogs) ) { 
                switch_to_blog(key($user_blogs)); 
            } else { 
                // no longer a member of a blog 
                wp_redirect(get_option('siteurl')); // redirect to front page 
                exit(0); 
            } 
        } 
 
        // redirect to profile page 
        $url = get_option('siteurl') . '/wp-admin/admin.php?page=s2'; 
        wp_redirect($url); 
        exit(0); 
    } // end wpmu_subscribe() 
 
    /** 
    Obtain a list of current WordPress multiuser blogs 
    Note this may affect performance but there is no alternative 
    */ 
    function get_mu_blog_list() { 
        global $wpdb; 
        $blogs = $wpdb->get_results( $wpdb->prepare("SELECT blog_id, domain, path FROM $wpdb->blogs WHERE site_id = %d AND archived = '0' AND mature = '0' AND spam = '0' AND deleted = '0' ORDER BY registered DESC", $wpdb->siteid), ARRAY_A ); 
 
        foreach ( $blogs as $details ) { 
            //reindex the array so the key is the same as the blog_id 
            $blog_list[$details['blog_id']] = $details; 
        } 
 
        if ( !is_array($blog_list) ) { 
            return array(); 
        } 
 
        return apply_filters('s2_mu_blog_list', $blog_list); 
    } // end get_mu_blog_list() 
 
    /** 
    Register user details when new user is added to a multisite blog 
    */ 
    function wpmu_add_user($user_ID = 0) { 
        global $mysubscribe2; 
        if ( 0 == $user_ID ) { return; } 
        if ( 'yes' == $mysubscribe2->subscribe2_options['autosub'] ) { 
            $mysubscribe2->register($user_ID, true); 
        } else { 
            $mysubscribe2->register($user_ID, false); 
        } 
    } // end wpmu_add_user() 
 
    /** 
    Delete user details when a user is removed from a multisite blog 
    */ 
    function wpmu_remove_user($user_ID) { 
        global $mysubscribe2; 
        if ( 0 == $user_ID ) { return; } 
        delete_user_meta($user_ID, $mysubscribe2->get_usermeta_keyname('s2_format')); 
        delete_user_meta($user_ID, $mysubscribe2->get_usermeta_keyname('s2_autosub')); 
        $cats = get_user_meta($user_ID, $mysubscribe2->get_usermeta_keyname('s2_subscribed'), true); 
        if ( !empty($cats) ) { 
            $cats = explode(', ', $cats); 
            foreach ( $cats as $cat ) { 
                delete_user_meta($user_ID, $mysubscribe2->get_usermeta_keyname('s2_cat') . $cat); 
            } 
        } 
        delete_user_meta($user_ID, $mysubscribe2->get_usermeta_keyname('s2_subscribed')); 
    } // end wpmu_remove_user() 
 
    /** 
    Rename WPMU widgets on upgrade without requiring user to re-enable 
    */ 
    function namechange_subscribe2_widget() { 
        global $wpdb; 
        $blogs = $wpdb->get_col("SELECT blog_id FROM {$wpdb->blogs}"); 
 
        foreach ( $blogs as $blog ) { 
            switch_to_blog($blog); 
 
            $sidebars = get_option('sidebars_widgets'); 
            if ( empty($sidebars) || !is_array($sidebars) ) { return; } 
            $changed = false; 
            foreach ( $sidebars as $s =>$sidebar ) { 
                if ( empty($sidebar) || !is_array($sidebar) ) { break; } 
                foreach ( $sidebar as $w => $widget ) { 
                    if ( $widget == 'subscribe2widget' ) { 
                        $sidebars[$s][$w] = 'subscribe2'; 
                        $changed = true; 
                    } 
                } 
            } 
            if ( $changed ) { 
                update_option('sidebar_widgets', $sidebars); 
            } 
            restore_current_blog(); 
        } 
    } // end namechange_subscribe2_widget() 
}