Restrict the Editing Access of Certain Themer Layouts

Beaver Themer is an add-on of Beaver Page Builder plugin. This add-on lets you create layouts for archive pages, template an entire post type, 404 and search pages, and create parts like headers and footers.

I create lot of themer layouts for my site. I want to restrict the editing access of only certain layouts for selected WP users. For example, say I have a header/footer layouts and single post layout. I want someone to be able to edit the header, but not be able to change the post layout.

In this article I shall share my procedure. I use following tools:

1. Advanced Custom Field Plugin (ACF Pro)
2. Beaver Page Builder Plugin
3. Beaver Theme Builder Plugin

At first I create the user meta box for themer layouts post type by Advanced Custom Fields plugin. See the screenshot below:

A user meta box will appear below Beaver Theme Layout settings box like attached screenshot.

Therefore I add this small PHP script into the functions.php file of my active theme.

/**
 * Restricting the editing access of selected users
 *
 * @author Paul Chinmoy
 * @link https://www.paulchinmoy.com
 */
add_filter( 'map_meta_cap', 'cp_map_meta_cap', 10, 4 );
function cp_map_meta_cap( $caps, $cap, $user_ID, $args ) {

	if ( in_array( $cap, array( 'delete_post', 'edit_post' ) ) && $args ) {
		$post_id = $args[0];
		
		if ( ! $post = get_post( $post_id ) )
			return $caps;

		if( $post->post_type !== 'fl-theme-layout' )
			return $caps;

		$restricted_users = get_post_meta( $post->ID, 'restricted_users', true );

		if( is_array( $restricted_users ) ) {
			foreach ( $restricted_users as $user ) {
				if( $user_ID == $user ) {
					$caps[] = 'not_allowed';
					return $caps;
				}
			}
			
		}
	}

	return $caps;
}