
WordPress代码生成器如何加快开发速度
remove_user_from_blog ( $user_id, $blog_id = 0, $reassign = 0 )
remove_user_from_blog: 这个函数用来从一个WordPress网站上删除一个用户: 这个函数需要两个参数,第一个是用户的ID,第二个是网站的ID。
将一个用户从博客中删除。
使用{@see ‘remove_user_from_blog’}动作,当用户从博客中被删除时触发一个事件。
接受一个可选的`$reassign’参数,如果你想在删除时将用户的博客文章重新分配给其他用户。
function remove_user_from_blog( $user_id, $blog_id = 0, $reassign = 0 ) { global $wpdb; switch_to_blog( $blog_id ); $user_id = (int) $user_id; /** * Fires before a user is removed from a site. * * @since MU (3.0.0) * @since 5.4.0 Added the `$reassign` parameter. * * @param int $user_id ID of the user being removed. * @param int $blog_id ID of the blog the user is being removed from. * @param int $reassign ID of the user to whom to reassign posts. */ do_action( 'remove_user_from_blog', $user_id, $blog_id, $reassign ); // If being removed from the primary blog, set a new primary // if the user is assigned to multiple blogs. $primary_blog = get_user_meta( $user_id, 'primary_blog', true ); if ( $primary_blog == $blog_id ) { $new_id = ''; $new_domain = ''; $blogs = get_blogs_of_user( $user_id ); foreach ( (array) $blogs as $blog ) { if ( $blog->userblog_id == $blog_id ) { continue; } $new_id = $blog->userblog_id; $new_domain = $blog->domain; break; } update_user_meta( $user_id, 'primary_blog', $new_id ); update_user_meta( $user_id, 'source_domain', $new_domain ); } $user = get_userdata( $user_id ); if ( ! $user ) { restore_current_blog(); return new WP_Error( 'user_does_not_exist', __( 'That user does not exist.' ) ); } $user->remove_all_caps(); $blogs = get_blogs_of_user( $user_id ); if ( count( $blogs ) == 0 ) { update_user_meta( $user_id, 'primary_blog', '' ); update_user_meta( $user_id, 'source_domain', '' ); } if ( $reassign ) { $reassign = (int) $reassign; $post_ids = $wpdb->get_col( $wpdb->prepare( "SELECT ID FROM $wpdb->posts WHERE post_author = %d", $user_id ) ); $link_ids = $wpdb->get_col( $wpdb->prepare( "SELECT link_id FROM $wpdb->links WHERE link_owner = %d", $user_id ) ); if ( ! empty( $post_ids ) ) { $wpdb->query( $wpdb->prepare( "UPDATE $wpdb->posts SET post_author = %d WHERE post_author = %d", $reassign, $user_id ) ); array_walk( $post_ids, 'clean_post_cache' ); } if ( ! empty( $link_ids ) ) { $wpdb->query( $wpdb->prepare( "UPDATE $wpdb->links SET link_owner = %d WHERE link_owner = %d", $reassign, $user_id ) ); array_walk( $link_ids, 'clean_bookmark_cache' ); } } restore_current_blog(); return true; }