bermudalambandClaude Opus 5
9222e97deb
Adds a self-referencing categories tree, a tag registry with deterministic colours, and item_tags, plus admin CRUD for both. GET /api/items now accepts category, tags, min_price and max_price. Category matching walks the subtree with a recursive CTE so selecting a parent includes everything filed beneath it; tags match with AND via a count check, since ANY() alone would return items carrying only one of them. Malformed filter params return 400 rather than being ignored, so a broken link doesn't quietly list the whole catalogue. GET /api/filters serves the drawer its tree, tags, and price bounds in one request. Item image/tag aggregation moves from LEFT JOIN + GROUP BY to scalar subqueries. Joining two one-to-many relations multiplies their rows, so an item with 2 images and 3 tags would have repeated every image three times once tags were added. Co-Authored-By: Claude Opus 5 (1M context) <noreply@anthropic.com>
44 lines
1.5 KiB
TypeScript
44 lines
1.5 KiB
TypeScript
// Shared item SELECT shapes for the public and admin routes.
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//
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// Images and tags are pulled as scalar subqueries rather than LEFT JOIN +
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// GROUP BY. Joining two one-to-many relations in the same query multiplies
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// their rows together — an item with 2 images and 3 tags would aggregate 6
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// rows, silently repeating every image three times. Subqueries keep each
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// aggregate independent and drop the GROUP BY entirely.
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const IMAGES_SUBQUERY = `
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COALESCE((
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SELECT json_agg(json_build_object('id', img.id, 'image_path', img.image_path, 'sort_order', img.sort_order)
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ORDER BY img.sort_order)
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FROM item_images img
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WHERE img.item_id = i.id
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), '[]') AS images`;
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const TAGS_SUBQUERY = `
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COALESCE((
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SELECT json_agg(json_build_object('id', t.id, 'name', t.name, 'color', t.color) ORDER BY t.name)
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FROM item_tags it
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JOIN tags t ON t.id = it.tag_id
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WHERE it.item_id = i.id
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), '[]') AS tags`;
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const FROM_CLAUSE = `
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FROM items i
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LEFT JOIN categories c ON c.id = i.category_id`;
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// The storefront gets an explicit column list — it has no business seeing
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// paypal_order_id or reserved_until.
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export const PUBLIC_ITEM_SELECT = `
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SELECT i.id, i.name, i.description, i.price_cents, i.status, i.created_at, i.category_id,
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c.name AS category_name,
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${IMAGES_SUBQUERY},
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${TAGS_SUBQUERY}
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${FROM_CLAUSE}`;
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export const ADMIN_ITEM_SELECT = `
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SELECT i.*,
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c.name AS category_name,
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${IMAGES_SUBQUERY},
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${TAGS_SUBQUERY}
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${FROM_CLAUSE}`;
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