refactor(mysql-pbl): remove unused read-only db config and isRead param

1. 注释掉不再使用的_getmysqlLabor和_getmysqluser变量
2. 移除runPbl和runUser函数的isRead参数，简化调用逻辑
3. 同步更新所有调用这两个函数的地方，移除多余的传入参数

mysql-pbl.js

@@ -19,8 +19,8 @@ var mysql = require("./mysql");
 //线上
 const _mysqlLabor = ["172.16.12.150", "pbl"]; //edu數據庫信息
 const _mysqluser = ["172.16.12.150", "cocorobouser"]; //用户数据库信息
-const _getmysqlLabor = ["172.16.12.150", "pbl"]; //edu數據庫信息
-const _getmysqluser = ["172.16.12.150", "cocorobouser"]; //用户数据库信息
+// const _getmysqlLabor = ["172.16.12.150", "pbl"]; //edu數據庫信息
+// const _getmysqluser = ["172.16.12.150", "cocorobouser"]; //用户数据库信息
 //======================================
 
 //解析 url 查询参数
@@ -31,8 +31,8 @@ function queryString(url) {
 }
 
 //直接执行 SQL（pbl 库）
-function runPbl(res, sql, params, isRead) {
-    var cfg = isRead ? _getmysqlLabor : _mysqlLabor;
+function runPbl(res, sql, params) {
+    var cfg = _mysqlLabor;
     var p = [cfg[0], cfg[1], sql].concat(params || []);
     mysql.usquery(p, function (ret) {
         res.end(JSON.stringify(ret));
@@ -40,8 +40,8 @@ function runPbl(res, sql, params, isRead) {
 }
 
 //直接执行 SQL（cocorobouser 库）
-function runUser(res, sql, params, isRead) {
-    var cfg = isRead ? _getmysqluser : _mysqluser;
+function runUser(res, sql, params) {
+    var cfg = _mysqluser;
     var p = [cfg[0], cfg[1], sql].concat(params || []);
     mysql.usquery(p, function (ret) {
         res.end(JSON.stringify(ret));
@@ -52,7 +52,7 @@ function runUser(res, sql, params, isRead) {
 router.route("/selectUser").all((req, res, next) => {
     var json = queryString(req.url);
     var sql = "SELECT * FROM User WHERE userid = ?";
-    runPbl(res, sql, [json["uid"]], true);
+    runPbl(res, sql, [json["uid"]]);
 });
 
 /* 查询全部用户 */
@@ -62,14 +62,14 @@ router.route("/selectUserAll").all((req, res, next) => {
     var pageSize = parseInt(json["pageSize"]) || 10;
     var offset = (page - 1) * pageSize;
     var sql = "SELECT * FROM User LIMIT ? OFFSET ?";
-    runPbl(res, sql, [pageSize, offset], true);
+    runPbl(res, sql, [pageSize, offset]);
 });
 
 /* 修改用户 */
 router.route("/updateUser").post((req, res, next) => {
     var json = req.body;
     var sql = "UPDATE User SET username = ? WHERE userid = ?";
-    runPbl(res, sql, [json["username"], json["userid"]], false);
+    runPbl(res, sql, [json["username"], json["userid"]]);
 });
 
 module.exports = router;