{# Course landing page with counts + traversal — graph-native style.
Demonstrates combining {% count %} (for the badge) with {% traverse %}
(for the lesson list). Single-page, no Cypher, no precomputed fields.
Schema assumptions:
- course type: title, slug, description, body
- lesson type: title, slug, order_index, status — connected by
`(course)-[:HAS_LESSON]->(lesson)` (or pass `parentId:{{ id }}` if
you import flat)
- question type: connected by (lesson)-[:HAS_QUESTION]->(question)
for the total-questions count #}
{{ title }} — {{ site.siteName }}
{{ title }}
{# Two cheap counts in the header — one engine round-trip each. #}
{% count type:"lesson" where:"parentId:{{ id }}" as lesson_count %}
{{ lesson_count }} lessons
{% if description %}
{{ description }}
{% endif %}
{{ body | md }}
{# Engine-side "what else is like this?" via embeddings.
This is the differentiator: graph-similarity recommendation
without writing a single line of Cypher. #}