Module migration 

Functions

create_page

Creates a new course page from a CMS update payload and returns its id.

ensure_unique_url_path 🔒

Appends a numeric suffix to base_path until it no longer collides with an existing (non-deleted) page in the course, so deriving slugs from duplicate or empty titles cannot hit the unique (course_id, url_path) constraint and abort the migration.

extract_title_from_blocks 🔒

Extract title from Gutenberg blocks (looks for hero-section or first heading)

slugify 🔒

Generate a URL-safe slug from a title.