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- Fills out placeholder categories table with all fields - Trilingual titles, status enum, difficulty level, auto-timestamps - ALTER TABLE IF NOT EXISTS for safe migration on existing table - /api/categories CRUD route, word_ids included in responses Co-Authored-By: Claude Sonnet 4.6 <noreply@anthropic.com>
104 lines
3.6 KiB
JavaScript
104 lines
3.6 KiB
JavaScript
const router = require('express').Router();
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const { query } = require('../db');
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const STATUSES = ['requested', 'blocked', 'published'];
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const STATUS_TIMESTAMP = {
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requested: 'requested_at',
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published: 'published_at',
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blocked: 'blocked_at',
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};
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// GET /api/categories
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router.get('/', async (req, res, next) => {
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try {
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const { status, limit = 50, offset = 0 } = req.query;
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const params = [Math.min(parseInt(limit), 500), parseInt(offset)];
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const where = status ? `WHERE c.status = $3` : '';
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if (status) params.push(status);
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const result = await query(
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`SELECT c.*,
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COALESCE(json_agg(DISTINCT w.id) FILTER (WHERE w.id IS NOT NULL), '[]') AS word_ids
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FROM categories c
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LEFT JOIN word_categories wc ON wc.category_id = c.id
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LEFT JOIN words w ON w.id = wc.word_id
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${where}
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GROUP BY c.id
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ORDER BY c.created_at DESC
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LIMIT $1 OFFSET $2`,
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params
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);
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res.json(result.rows);
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} catch (err) { next(err); }
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});
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// GET /api/categories/:id
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router.get('/:id', async (req, res, next) => {
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try {
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const result = await query(
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`SELECT c.*,
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COALESCE(json_agg(DISTINCT w.id) FILTER (WHERE w.id IS NOT NULL), '[]') AS word_ids
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FROM categories c
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LEFT JOIN word_categories wc ON wc.category_id = c.id
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LEFT JOIN words w ON w.id = wc.word_id
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WHERE c.id = $1
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GROUP BY c.id`,
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[req.params.id]
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);
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if (!result.rows.length) return res.status(404).json({ error: 'Not found' });
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res.json(result.rows[0]);
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} catch (err) { next(err); }
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});
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// POST /api/categories
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router.post('/', async (req, res, next) => {
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try {
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const { titel_de, titel_en, titel_se, difficulty_level } = req.body;
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const result = await query(
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`INSERT INTO categories (titel_de, titel_en, titel_se, difficulty_level, requested_at)
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VALUES ($1, $2, $3, $4, NOW()) RETURNING *`,
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[titel_de || null, titel_en || null, titel_se || null, difficulty_level || null]
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);
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res.status(201).json({ ...result.rows[0], word_ids: [] });
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} catch (err) { next(err); }
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});
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// PATCH /api/categories/:id
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router.patch('/:id', async (req, res, next) => {
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try {
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const allowed = ['titel_de', 'titel_en', 'titel_se', 'status',
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'difficulty_level', 'requested_at', 'published_at', 'blocked_at'];
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const fields = Object.keys(req.body).filter(k => allowed.includes(k));
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if (!fields.length) return res.status(400).json({ error: 'No valid fields provided' });
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if (req.body.status && !STATUSES.includes(req.body.status))
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return res.status(400).json({ error: `status must be one of: ${STATUSES.join(', ')}` });
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const tsField = STATUS_TIMESTAMP[req.body.status];
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if (tsField && !req.body[tsField]) {
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fields.push(tsField);
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req.body[tsField] = new Date().toISOString();
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}
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const setClauses = fields.map((f, i) => `${f} = $${i + 1}`).join(', ');
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const values = [...fields.map(f => req.body[f]), req.params.id];
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const result = await query(
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`UPDATE categories SET ${setClauses} WHERE id = $${fields.length + 1} RETURNING *`,
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values
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);
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if (!result.rows.length) return res.status(404).json({ error: 'Not found' });
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res.json(result.rows[0]);
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} catch (err) { next(err); }
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});
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// DELETE /api/categories/:id
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router.delete('/:id', async (req, res, next) => {
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try {
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const result = await query('DELETE FROM categories WHERE id = $1 RETURNING id', [req.params.id]);
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if (!result.rows.length) return res.status(404).json({ error: 'Not found' });
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res.status(204).end();
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} catch (err) { next(err); }
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});
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module.exports = router;
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