unsupervised-scheduler/docs/features/editor-blocks.md

Editor Blocks

Gutenberg dynamic-block wrappers for the plugin's four front-end shortcodes, so the pages can be previewed and styled inside the block editor instead of appearing as grey shortcode text.

Blocks

Block	Wraps shortcode	Front-end renderer
us-scheduler/booking	[us_booking]	Booking\BookingPage::render()
us-scheduler/student-login	[us_student_login]	Auth\LoginPage::render()
us-scheduler/student-register	[us_student_register]	Auth\RegistrationPage::render()
us-scheduler/group-classes	[us_group_classes]	GroupClass\GroupClassPage::render()

The shortcodes remain registered for back-compat; blocks and shortcodes share the same page objects (constructed once in Plugin::boot()), so front-end output is identical either way. Pasting a shortcode into the block editor auto-converts it to the matching block via a transforms.from shortcode transform.

Block options

Three blocks have sidebar (inspector) options:

Block	Attribute	Default	Effect
us-scheduler/booking	loginPageId (number)	0	Page the "log in to book a lesson" link points to for logged-out visitors. 0 = the WordPress login screen (with a redirect back to the current page).
us-scheduler/booking	autoRedirect (boolean)	false	Send logged-out visitors straight to the login page instead of showing the link.
us-scheduler/student-login	bookingPageId (number)	0	Page the "View available lessons" link points to for logged-in visitors, and the post-login redirect target. 0 = the current page.
us-scheduler/student-login	autoRedirect (boolean)	false	Send logged-in visitors straight to the booking page instead of showing the link. Does nothing until a booking page is chosen.
us-scheduler/group-classes	offeringId (number)	0	Restrict the page to a single group class, for embedding on a page dedicated to that class. 0 = browse all classes. Shortcode equivalent: [us_group_classes offering="…"].

The page selects list all published pages; if a chosen page is later deleted, the blocks fall back to their defaults. The group-classes block's class select is a dropdown of active group classes fetched from GET /us-scheduler/v1/offerings?kind=group_class; a stored class that is no longer offered shows as "Unavailable class #N" rather than silently falling back to all classes. The link targets are also available to the shortcodes as [us_booking login_page_id="…"] and [us_student_login booking_page_id="…"]; auto-redirect is block-only.

Auto-redirect cannot happen during block rendering (output has already started, so a Location header cannot be sent). Instead BlockRegistrar::maybeAutoRedirect() runs on template_redirect, parses the queried singular post's content for the block (including inside nested blocks), and redirects when the block opts in. A block whose target is its own page is ignored to avoid a redirect loop.

How it works

• BlockRegistrar (src/BlockRegistrar.php) hooks init and registers each block with register_block_type(): a render_callback per block, the shared editor script (assets/js/blocks.js, handle us-scheduler-blocks), and the front-end stylesheet (assets/css/frontend.css, handle us-scheduler) as the block style so it also loads inside the editor and previews pick up theme styling.
• assets/js/blocks.js (vanilla JS, no build step) registers the client side of each block — title, icon, keywords, shortcode transform — and renders the editor preview with wp.serverSideRender, which fetches the server-rendered markup via the /wp/v2/block-renderer REST route.
• BlockPreview (src/BlockPreview.php) supplies static, script-free markup for editor previews. BlockRegistrar::isEditorPreview() detects the block-renderer context via the REST_REQUEST constant (front-end template rendering never happens inside a REST request) and renders the preview instead of the live page.

Editor preview behaviour

Live pages cannot run in the editor: booking and group classes are populated by JavaScript making authenticated REST calls (and may load Stripe.js), registration requires a valid invite token, and login short-circuits for logged-in users (the editing admin always is). Each preview therefore reproduces the live wrapper elements and CSS classes with representative placeholder content:

• Booking — #us-booking-app with sample .us-day / .us-slot rows and disabled Book buttons.
• Group classes — #us-group-app with a sample .us-class card and a disabled Enrol button.
• Login — the real templates/frontend/login-page.php template (it has no request-state dependencies).
• Registration — a disabled sample of the .us-register-form fields.

Each preview starts with a .us-editor-note paragraph explaining what the published page shows instead. The note class only appears in editor previews.

Tests

• tests/Unit/BlockRegistrarTest.php — hook registration, block/asset registration, attribute schemas, front-end delegation to the page objects, preview-mode routing, auto-redirect behaviour.
• tests/Unit/Booking/BookingPageTest.php — logged-out login-link targets and fallbacks.
• tests/Unit/Auth/LoginPageTest.php — logged-in booking-link targets and fallbacks.
• tests/Unit/BlockPreviewTest.php — preview markup mirrors the live CSS classes/ids and includes the editor note.