sale order

services/sales/db.js

@@ -0,0 +1,58 @@
+// services/sales/db.js
+// Thin helpers over the portal's own app DB (services/appSqlPool.js) for the
+// Sales Order module (replacement for the old msale/MySQL portal). Every
+// Sales table lives in the APP database (ZSO_* prefix) — never the SAP DB.
+'use strict';
+const sql = require('mssql');
+const { getPool } = require('../appSqlPool');
+
+// Bind `?` placeholders positionally (same convention as appSqlPool.query),
+// but with explicit types for numbers so decimals don't round-trip as FLOAT
+// surprises and big ints don't overflow INT.
+function bind(req, text, params) {
+  let i = 0;
+  return text.replace(/\?/g, () => {
+    const name = `p${i}`;
+    const v = params[i];
+    if (v === undefined || v === null) req.input(name, sql.NVarChar, null);
+    else if (typeof v === 'number') req.input(name, Number.isInteger(v) && Math.abs(v) < 2147483647 ? sql.Int : sql.Decimal(19, 4), v);
+    else if (typeof v === 'boolean') req.input(name, sql.Bit, v ? 1 : 0);
+    else if (v instanceof Date) req.input(name, sql.DateTime2, v);
+    else req.input(name, sql.NVarChar(sql.MAX), String(v));
+    i++;
+    return `@${name}`;
+  });
+}
+
+async function query(text, params = [], runner = null) {
+  const r = runner ? runner.request() : (await getPool()).request();
+  const res = await r.query(bind(r, text, params));
+  return res.recordset || [];
+}
+
+async function one(text, params = [], runner = null) {
+  const rows = await query(text, params, runner);
+  return rows[0] || null;
+}
+
+// Run fn(tx) inside a SQL transaction; fn receives a runner usable as the
+// 3rd arg of query()/one(). Rolls back on any throw.
+async function tx(fn) {
+  const pool = await getPool();
+  const t = new sql.Transaction(pool);
+  await t.begin();
+  try {
+    const out = await fn(t);
+    await t.commit();
+    return out;
+  } catch (e) {
+    try { await t.rollback(); } catch (_e) {}
+    throw e;
+  }
+}
+
+function json(v, fb) { if (v == null || v === '') return fb; try { return JSON.parse(v); } catch (_e) { return fb; } }
+function csv(v) { return String(v || '').split(',').map(s => s.trim()).filter(Boolean); }
+function round2(n) { return Math.round((Number(n) || 0) * 100) / 100; }
+
+module.exports = { query, one, tx, json, csv, round2, sql };