init

server/src/modules/hospital/service.js

@@ -0,0 +1,24 @@
+/// modules/hospital/service.js
+/// 描述：医院资源的业务逻辑层（所有 SQL 集中在这里）
+const { getPool } = require('../../db');
+
+/**
+ * 列出所有医院
+ * @returns {Promise<Array<object>>}
+ */
+const listAll = async () => {
+  const [rows] = await getPool().query('SELECT * FROM hospitals ORDER BY id');
+  return rows;
+};
+
+/**
+ * 按 ID 获取医院
+ * @param {string} id
+ * @returns {Promise<object|null>}
+ */
+const findById = async (id) => {
+  const [rows] = await getPool().query('SELECT * FROM hospitals WHERE id = ?', [id]);
+  return rows[0] || null;
+};
+
+module.exports = { listAll, findById };