wpseek.com
A WordPress-centric search engine for devs and theme authors

function confirm_delete_users( $users ) {
	global $wpdb;

	$current_user = wp_get_current_user();
	if ( ! is_array( $users ) || empty( $users ) ) {
		return false;
	}

	?>
	<h1><?php esc_html_e( 'Delete Users' ); ?></h1>

	<?php if ( 1 === count( $users ) ) : ?>
		<p><?php _e( 'You have chosen to delete the user from all networks and sites.' ); ?></p>
	<?php else : ?>
		<p><?php _e( 'You have chosen to delete the following users from all networks and sites.' ); ?></p>
	<?php endif; ?>

	<form action="users.php?action=dodelete" method="post" class="delete-and-reassign-users-form">
	<input type="hidden" name="dodelete" />
	<?php
	wp_nonce_field( 'ms-users-delete' );
	$site_admins = get_super_admins();
	?>
	<table class="form-table" role="presentation">
	<?php
	foreach ( $users as $user_id ) {
		if ( '' !== $user_id && '0' !== $user_id ) {
			$delete_user = get_userdata( $user_id );

			if ( ! current_user_can( 'delete_user', $delete_user->ID ) ) {
				wp_die(
					sprintf(
						/* translators: %s: User login. */
						__( 'Warning! User %s cannot be deleted.' ),
						$delete_user->user_login
					)
				);
			}

			if ( in_array( $delete_user->user_login, $site_admins, true ) ) {
				wp_die(
					sprintf(
						/* translators: %s: User login. */
						__( 'Warning! User cannot be deleted. The user %s is a network administrator.' ),
						'<em>' . $delete_user->user_login . '</em>'
					)
				);
			}

			?>
			<tr>
				<th scope="row"><?php echo $delete_user->user_login; ?>
					<?php echo '<input type="hidden" name="user[]" value="' . esc_attr( $user_id ) . '" />' . "\n"; ?>
				</th>
			<?php
			$blogs = get_blogs_of_user( $user_id, true );

			if ( ! empty( $blogs ) ) {
				?>
				<td><fieldset><legend>
				<?php
				printf(
					/* translators: 1: User login, 2: User ID. */
					__( '%1$s (ID #%2$s): What should be done with the content owned by this user?' ),
					'<strong>' . $delete_user->user_login . '</strong>',
					$user_id
				);
				?>
				</legend>
				<?php
				foreach ( (array) $blogs as $key => $details ) {
					$blog_users = get_users(
						array(
							'blog_id' => $details->userblog_id,
							'fields'  => array( 'ID' ),
							'exclude' => $users,
						)
					);

					$blog_users = wp_list_pluck( $blog_users, 'ID' );

					if ( is_array( $blog_users ) && ! empty( $blog_users ) ) {
						$user_site = "<a href='" . esc_url( get_home_url( $details->userblog_id ) ) . "'>{$details->blogname}</a>";
						switch_to_blog( $details->userblog_id );
						/* This filter is documented in wp-admin/users.php */
						$user_has_content = (bool) apply_filters( 'users_have_additional_content', false, array( $delete_user->ID ) );

						if ( ! $user_has_content ) {
							if ( $wpdb->get_var(
								$wpdb->prepare(
									"SELECT ID FROM {$wpdb->posts}
									WHERE post_author = %d
									LIMIT 1",
									$delete_user->ID
								)
							) ) {
								$user_has_content = true;
							} elseif ( $wpdb->get_var(
								$wpdb->prepare(
									"SELECT link_id FROM {$wpdb->links}
									WHERE link_owner = %d
									LIMIT 1",
									$delete_user->ID
								)
							) ) {
								$user_has_content = true;
							}
						}
						restore_current_blog();

						if ( ! $user_has_content ) {
							?>
							<p>
							<?php
							/* translators: %s: Link to user's site. */
							printf( __( 'Site: %s' ), $user_site );
							?>
							</p>
							<input type="hidden" id="delete_option_<?php echo esc_attr( $details->userblog_id . '_' . $delete_user->ID ); ?>" name="delete[<?php echo $details->userblog_id . '][' . $delete_user->ID; ?>]" value="delete" required />
							<p><?php _e( 'This user does not have any content.' ); ?></p>
							<?php
						} else {
							?>
							<fieldset>
								<legend>
								<?php
								/* translators: %s: Link to user's site. */
								printf( __( 'Site: %s' ), $user_site );
								?>
								</legend>
								<ul>
									<li>
										<input type="radio" id="delete_option_<?php echo esc_attr( $details->userblog_id . '_' . $delete_user->ID ); ?>" name="delete[<?php echo $details->userblog_id . '][' . $delete_user->ID; ?>]" value="delete" required />
										<label for="delete_option_<?php echo esc_attr( $details->userblog_id . '_' . $delete_user->ID ); ?>"><?php _e( 'Delete all content.' ); ?></label>
									</li>
									<li>
										<input type="radio" id="reassign_option_<?php echo esc_attr( $details->userblog_id . '_' . $delete_user->ID ); ?>" name="delete[<?php echo $details->userblog_id . '][' . $delete_user->ID; ?>]" value="reassign" required />
										<label for="reassign_option_<?php echo esc_attr( $details->userblog_id . '_' . $delete_user->ID ); ?>"><?php _e( 'Attribute all content to another user.' ); ?></label>

										<label for="reassign_user_<?php echo esc_attr( $details->userblog_id . '_' . $delete_user->ID ); ?>" class="screen-reader-text"><?php _e( 'Select a user to attribute the content to.' ); ?></label>
										<?php
										wp_dropdown_users(
											array(
												'show_option_none' => __( 'Select a user' ),
												'name'    => "blog[$user_id][$key]",
												'include' => $blog_users,
												'show'    => 'display_name_with_login',
												'id'      => "reassign_user_{$details->userblog_id}_{$delete_user->ID}",
											)
										);
										?>

									</li>
								</ul>
							</fieldset>
							<?php
						}
					}
				}
				echo '</fieldset></td></tr>';
			} else {
				?>
				<td><p><?php _e( 'User has no sites or content and will be deleted.' ); ?></p></td>
			<?php } ?>
			</tr>
			<?php
		}
	}

	?>
	</table>
	<?php
	/** This action is documented in wp-admin/users.php */
	do_action( 'delete_user_form', $current_user, $users );

	if ( 1 === count( $users ) ) :
		?>
		<p><?php _e( 'Once you hit &#8220;Confirm Deletion&#8221;, the user will be permanently removed.' ); ?></p>
	<?php else : ?>
		<p><?php _e( 'Once you hit &#8220;Confirm Deletion&#8221;, these users will be permanently removed.' ); ?></p>
		<?php
	endif;

	submit_button( __( 'Confirm Deletion' ), 'primary', 'submit', false, array( 'id' => 'confirm-users-deletion' ) );
	?>
	</form>
	<?php
	return true;
}