nooljs/lib/db/mysql.js

Full stack JavaScript framework created top of Nodejs, express, and Socket-io, and Angularjs

// noolServer.js 0.1.0
// Copyright (c) 2016  Chandru Krishnar <chandru0507@gmail.com>
// MIT
module.exports =
{
    execute: function (config, query, data, option) {
        var mysql = require('mysql');
        var Q = require('q');
        var pool = mysql.createPool(config);
        
        if (data) {
            for (var i = 0; i < data.length; i++) {
               // console.log("query:%s, name:%s, value:%s" , query, data[i].name, data[i].value);
                query = query.replace("{{" + data[i].name + "}}", "'" + data[i].value.replace(/'/g, "''") + "'");
            }
		
        }
        var arr = query.split(";");
        
        for (var i = 0; i < arr.length; i++) {
            if ((arr[i].match(/'/g) || []).length % 2 == 1 && (i + 1 < arr.length)) {
                arr[i + 1] = arr[i] + ',' + arr[i + 1];
                arr.splice(i, 1);
                i--;
            }
        }
        
        var querystring = query;
        var paramArr = [];
        if (arr.length > 1) {
            // we have params
            if(arr[1].length > 0 )
                paramArr = JSON.parse(arr[1]);
            querystring = arr[0];
        }
        var deferred = Q.defer();
        console.log("mysql-execute:%s ", querystring);
        pool.query(querystring, paramArr, function (err, rows, fields) 
            {
            if (!err) {
               // console.log("mysql-execute-resultset resolved. :%s ", querystring);
                deferred.resolve(rows);
            }
            else {
                console.log("mysql-execute-resultset error. :%s ", querystring);
                deferred.reject(err);
            }			
        });
        return deferred.promise;	
    }
}