how to perform crud using node.js express with mysql - mysql

Question

I want to perform a basic CRUD with mysql and I installed some modules like npm install mysql,npm install path, npm install routes but there is a problem which I'm facing is most middleware error here is my
app.js
var express = require('express');
var routes = require('./routes');
var http = require('http')
var path = require('path');
//load customers route
var customers = require('./routes/customers');
var app = express();
var connection = require('express-myconnection');
var mysql = require('mysql');
// all environments
app.set('port', process.env.PORT || 80);
app.set('views', path.join(__dirname, 'views'));
app.set('view engine', 'ejs');
//app.use(express.favicon());
app.use(express.logger('dev'));
app.use(express.json());
app.use(express.urlencoded());
app.use(express.methodOverride());
app.use(express.static(path.join(__dirname, 'public')));
// development only
if ('development' == app.get('env')) {
app.use(express.errorHandler());
}
app.use(
connection(mysql,{
host: 'localhost',
user: 'root',
password : '',
port : 80, //port mysql
database:'nodejs'
},'pool') //or single
);
app.get('/', routes.index);
app.get('/customers', customers.list);
app.get('/customers/add', customers.add);
app.post('/customers/add', customers.save);
app.get('/customers/delete/:id', customers.delete_customer);
app.get('/customers/edit/:id', customers.edit);
app.post('/customers/edit/:id',customers.save_edit);
app.use(app.router);
http.createServer(app).listen(app.get('port'), function(){
console.log('Express server listening on port ' + app.get('port'));
});
and here is other customer.js
exports.list = function(req, res){
req.getConnection(function(err,connection){
var query = connection.query('SELECT * FROM customer',function(err,rows)
{
if(err)
console.log("Error Selecting : %s ",err );
res.render('customers',{page_title:"Customers - Node.js",data:rows});
});
//console.log(query.sql);
});
};
exports.add = function(req, res){
res.render('add_customer',{page_title:"Add Customers - Node.js"});
};
exports.edit = function(req, res){
var id = req.params.id;
req.getConnection(function(err,connection){
var query = connection.query('SELECT * FROM customer WHERE id = ?',[id],function(err,rows)
{
if(err)
console.log("Error Selecting : %s ",err );
res.render('edit_customer',{page_title:"Edit Customers - Node.js",data:rows});
});
});
};
exports.save = function(req,res){
var input = JSON.parse(JSON.stringify(req.body));
req.getConnection(function (err, connection) {
var data = {
name : input.name,
address : input.address,
email : input.email,
phone : input.phone
};
var query = connection.query("INSERT INTO customer set ? ",data, function(err, rows)
{
if (err)
console.log("Error inserting : %s ",err );
res.redirect('/customers');
});
});
};
exports.save_edit = function(req,res){
var input = JSON.parse(JSON.stringify(req.body));
var id = req.params.id;
req.getConnection(function (err, connection) {
var data = {
name : input.name,
address : input.address,
email : input.email,
phone : input.phone
};
connection.query("UPDATE customer set ? WHERE id = ? ",[data,id], function(err, rows)
{
if (err)
console.log("Error Updating : %s ",err );
res.redirect('/customers');
});
});
};
exports.delete_customer = function(req,res){
var id = req.params.id;
req.getConnection(function (err, connection) {
connection.query("DELETE FROM customer WHERE id = ? ",[id], function(err, rows)
{
if(err)
console.log("Error deleting : %s ",err );
res.redirect('/customers');
});
});
};
every time when i go to cmd and run the nodo app the error occur
Error: Most middleware (like logger) is no longer bundled with Express and must
be installed separately. Please see https://github.com/senchalabs/connect#middle
ware.
at Function.Object.defineProperty.get (C:\Users\Tahir\Desktop\node_modules\e
xpress\lib\express.js:89:13)
at Object.<anonymous> (C:\Users\Tahir\Desktop\nodecrud-master\app.js:23:17)
at Module._compile (module.js:456:26)
at Object.Module._extensions..js (module.js:474:10)
at Module.load (module.js:356:32)
at Function.Module._load (module.js:312:12)
at Function.Module.runMain (module.js:497:10)
at startup (node.js:119:16)
at node.js:906:3
any body help to figure out where is the issue is ??

Answer 1

this code depend on express 3.4.0 version... it not work on express 4.x then express 4.x upgrade some package and middleware...... logger('dev') not work... var logger=require('morgan');... i give some more idea
uninstall express4 and express-generator
like
uninstall
-------------
npm uninstall express -g
npm uninstall express-generator -g
install
---------
npm install express#3.4.0 -g
npm install express-generator -g
npm express -e appname (this is express generator)
>cd appname
appname>npm install
appname>npm install mysql
appname>npm install express-myconnection
after to replace all ur code copy and paste it
then run
appname>node app.js
all the best ........... is code really help u..