Add a sidebar to Twenty Seventeen pages

Out of the box, you can’t have a sidebar on pages with Twenty Seventeen theme. You can have one on posts, but not on pages.

Ok. Out of the box, but you probably guess that I’ve found a hack 😉 So, here is the way to…

Add sidebar for pages

For this hack, a child theme is required. If you have not created one, you can easily do it with this tuto: Create a Child Theme for Twenty Seventeen. Copy page.php file from parent theme. Edit the file in the child theme. Add the following code between </div><!-- #primary --> and </div><!-- .wrap -->:

<?php get_sidebar(); ?>

In functions.php file, add this:

function tsct_body_classes_child( $classes ){
if ( is_active_sidebar( 'sidebar-1' ) && is_page() ) {
$classes[] = 'has-sidebar';
}
return $classes;
}
add_filter( 'body_class', 'tsct_body_classes_child' );

That’s all folks! Your sidebar with widgets you choosed is now displayed on pages too. But if you want to have…

Pages with sidebar, and pages without sidebar

Copy the parent page.php file to child theme, rename it page-with-sidebard.php, edit the file, change code as explained above and replace * The template for displaying all pages by * Template Name: With Sidebar.

Now in pages templates, for each page, you can choose the most appropriate template, with or without sidebar.