UPDATE

library/LibMysqlHelper.js

@@ -2,7 +2,7 @@ const db = require(`../config/dbMysqlConn`);
 // const Promise = require("bluebird");
 
 class MysqlHelpers {
-  static async insert (table, data) {
+  static async insert(table, data) {
     return new Promise((resolve, reject) => {
       const query = `INSERT INTO ${table} SET ?;`;
       db.getConnection(function (err, conn) {
@@ -42,7 +42,7 @@ class MysqlHelpers {
       });
     })
   }
-  static async update (table, data, colId, valId) {
+  static async update(table, data, colId, valId) {
     return new Promise((resolve, reject) => {
       const query = `UPDATE ${table} SET ? WHERE ${colId} = ?;`;
       db.getConnection(function (err, conn) {
@@ -81,7 +81,7 @@ class MysqlHelpers {
       });
     })
   }
-  static async delete (table, colId, valId) {
+  static async delete(table, colId, valId) {
     return new Promise((resolve, reject) => {
       const query = `DELETE FROM ${table} WHERE ${colId} = ?;`;
       db.getConnection(function (err, conn) {
@@ -120,7 +120,7 @@ class MysqlHelpers {
       });
     })
   }
-  static async createConnection () {
+  static async createConnection() {
     return new Promise((resolve, reject) => {
       db.getConnection(function (err, conn) {
         if (err) {
@@ -132,18 +132,18 @@ class MysqlHelpers {
       });
     })
   }
-  static async getDbMysqlConn () {
+  static async getDbMysqlConn() {
     return new Promise((resolve, reject) => {
       resolve(db);
     })
   }
-  static async releaseConnection (conn) {
+  static async releaseConnection(conn) {
     return new Promise((resolve, reject) => {
       if (conn) conn.release();
       resolve(true);
     })
   }
-  static async createTrx (conn) {
+  static async createTrx(conn) {
     return new Promise((resolve, reject) => {
       conn.beginTransaction(async function (err) {
         if (err) {
@@ -155,7 +155,7 @@ class MysqlHelpers {
       });
     })
   }
-  static async queryTrx (conn, query = '', params = []) {
+  static async queryTrx(conn, query = '', params = []) {
     return new Promise((resolve, reject) => {
       conn.query(query, params, function (err, result) {
         if (err) {
@@ -170,7 +170,7 @@ class MysqlHelpers {
       });
     })
   }
-  static async query (conn, query = '', params = []) {
+  static async query(conn, query = '', params = []) {
     return new Promise((resolve, reject) => {
       conn.query(query, params, function (err, result) {
         if (err) return reject(err);
@@ -179,7 +179,7 @@ class MysqlHelpers {
       });
     })
   }
-  static async commit (conn) {
+  static async commit(conn) {
     return new Promise((resolve, reject) => {
       conn.commit(async function (err) {
         if (err) {
@@ -192,13 +192,24 @@ class MysqlHelpers {
       });
     })
   }
-  static async rollback (conn) {
-    return new Promise((resolve, reject) => {
-      conn.rollback(async function () {
-        conn.release();
-        reject(err);
-      });
-      return false;
+  // static async rollback (conn) {
+  //   return new Promise((resolve, reject) => {
+  //     conn.rollback(async function () {
+  //       conn.release();
+  //       reject(err);
+  //     });
+  //     return false;
+  //   })
+  // }
+  static async rollback(conn) {
+    return new Promise((resolve) => {
+      conn.rollback(() => {
+        try {
+          conn.release()
+        } catch (e) { }
+
+        resolve(true)
+      })
     })
   }
 }