How to create a custom role and user globally for WordPress Multisite.

WordPress Multisite is a type of WordPress installation that allows you to create and manage a network of multiple websites from a single WordPress dashboard. This lets you easily make changes and keep all of your websites updated from one place.

WordPress has six predefined roles: Super Admin, Administrator, Editor, Author, Contributor, and Subscriber. Each role is allowed to perform a set of tasks called Capabilities. That means capabilities for each type of role are different.

If you want to create a user with limited capabilities then you can create a custom role and assign this role to the same capabilities that you want.

WordPress provides five functions for managing WordPress roles and capabilities:

• add_role(): For adding a custom role.
• remove_role(): For removing a custom role.
• add_cap(): For adding a custom capability to a role.
• remove_cap(): For removing a custom capability from a role.
• get_role (): Gets information about the role and its capabilities.

function wk_add_new_roles() {

	global $wpdb;

	add_role( 'wk_custom_role', esc_html__( 'Custom Role', 'wk-text-domain'), array(
			'read'                   => true,
			'level_0'                => true,
			'edit_posts'             => true,
			'publish_posts'          => true,
			'edit_published_posts'   => true,
			'edit_others_posts'      => true,
			'edit_private_posts'     => true,
		)
	);

	$main_user_roles = get_option( $wpdb->prefix . 'user_roles' );

	// Get all store using(get_sites()) this method 
	$blogs = get_sites();

	foreach ( $blogs as $key => $blog ) {

		// Skip current store as it has allready created above
		if( get_current_blog_id() !== $blog->blog_id ) {

			switch_to_blog( $blog->blog_id );

			$user_roles = get_option( $wpdb->prefix . 'user_roles' );

			if( ! empty( $main_user_roles[$role] ) ) {

				$user_roles[$role] = $main_user_roles[$role];

				update_option( $wpdb->prefix . 'user_roles', $user_roles );
			}
			restore_current_blog();
		}
	}
}

register_activation_hook( __FILE__, 'wk_add_new_roles' );

The results are shown here, and they will also be posted on your subsite.

/**
 * Set new user to all subsites.
 *
 * @param int $user_id
 *
 * @param object $userdata
 *
 * @return void
 */
function wk_add_new_user( $user_id, $userdata ) {

	$blogs = get_sites();

	$user = get_userdata( $user_id );

	$status = false;

	if( in_array( 'wk_custom_role', $user->roles ) ) {
		$status = true;
	} elseif( isset( $_POST['role'] ) && $_POST['role'] === 'wk_custom_role' ) {
		$status = true;
	}

	if( $blogs && $status ) {
		foreach ( $blogs as $key => $blog ) {
			add_user_to_blog( $blog->blog_id, $user_id, 'wk_custom_role' );
		}
	}
}
add_action( 'user_register', 'wk_add_new_user' ,10 ,2 ); // For add new user
add_action( 'profile_update', 'wk_add_new_user' ,10 ,2 ); // For update user

Using this user will be added to all your subsites as well.

This is all about creating user and user custom roles for all your subsite.

Hope you like this article, Will meet you again with a new topic :). Also, visit our quality WooCommerce extensions.

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