Seegatesite.com

Seegatesite.com - Programming Tutorial , Sharing , How and Learn Together

🏠 » Javascript » Tutorial Create CRUD With Node.Js , Express, MySQL And AdminLTE For Beginner

Tutorial Create CRUD With Node.Js , Express, MySQL And AdminLTE For Beginner

By ∙ ∙ Javascript ∙ 26 Comments

Share : TwitterFacebookTelegramWhatsapp

Continuing the tutorial on node.js express tutorial, I will share tutorial to create CRUD using MySQL, node.js, express and adminLTE. If you haven’t read my previous article regarding how to transfer adminLTE to jade template engine in express.js, please read it first because this article is a continuation of the article. In this tutorial, I will create a simple web application to create, read, update and delete customer data. It is important to note, this tutorial for beginners, so for those who are already expert could advise me through the comments field.

CRUD is a standard concept for manufacturing information system application. In this blog I have been several times made articles about CRUD using PHP, maybe if interested you can read

– Tutorial PHP Class For Simple CRUD with PDO For Beginners.
– Create Simple CRUD with Datatables, Jquery, and AdminLTE

Let’s start create CRUD with Node.Js , Express, MySQL and AdminLTE Tutorial for beginner

As early initialization, create a database with the name nodejs and a customer table.

Related Articles :

Customer table structure

Prepare Database Simple Crud With Node Js

Insert table customer with the data below

1
2
3
4
insert into 'customer' ('id', 'name', 'address', 'email', 'phone') values('6','Richard Gere','Washington DC Street Block C 85','richardgere@yahoo.com','038372636232');
insert into 'customer' ('id', 'name', 'address', 'email', 'phone') values('9','Tukul Arwana','Jln Lingkaran subur 58','tukul@yahoo.com','038373273262');
insert into 'customer' ('id', 'name', 'address', 'email', 'phone') values('10','Taylor Swift','Hollywoord','tswift@yahoo.com','039223232323');
insert into 'customer' ('id', 'name', 'address', 'email', 'phone') values('15','Sigit Prasetya','Indonesia central of java','sigit@gmail.com','0271 85858588');

Create a new express project with expressproject name (if you have read the previous tutorial, skip this section)

1
express --view=jade expressproject

Then enter the expressproject folder and do the following command

1
2
cd myapp
npm install

Package.json which I use in this example are as follows

Package Json Create Simple Crud Node Js Express Mysql And Adminlte

Install all package/plugin that is required

1
2
3
4
5
npm install express-flash --save
npm install express-session --save
npm install express-validator --save
npm install method-override --save
npm install mysql --save

A little explanation :

  • express-flash
    Flash is an extension of connect-flash with the ability to define a flash message and render it without redirecting the request.
    In this tutorial express flash is used to display a warning, error and information message
  • express-session
    Express-session is used to made a session as in PHP. In this tutorial, session is needed as the express requirement of express-flash.
  • express-validator
    To make the validation of the input form, already provided plugin which is very comprehensive and easy to use, express-validator highly effective and efficient way to accelerate the creation of applications.
  • method-override
    NPM is used to run a DELETE and PUT method from an HTML form. Because now, in several web browsers only support GET and POST methods.
  • MySQL
    Driver to connect node.js with MySQL

Connecting template adminLTE to express js

Please download the source adminLTE in my previous tutorial here and ensure order in the expressproject folder as shown below

Expressproject With Adminlte Template Folder List

Then please adjust your app.js file as in the following code:

1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
var express = require('express');
var path = require('path');
var favicon = require('serve-favicon');
var logger = require('morgan');
var cookieParser = require('cookie-parser');
var bodyParser = require('body-parser');
var flash = require('express-flash');
var session = require('express-session');
var index = require('./routes/index');
var users = require('./routes/users');
var customers = require('./routes/customers');
var expressValidator = require('express-validator');
var methodOverride = require('method-override');
 
var connection  = require('express-myconnection');
var mysql = require('mysql');
 
var app = express();
// view engine setup
app.set('views', path.join(__dirname, 'views'));
app.set('view engine', 'jade');
 
// uncomment after placing your favicon in /public
//app.use(favicon(path.join(__dirname, 'public', 'favicon.ico')));
app.use(logger('dev'));
app.use(bodyParser.json());
app.use(bodyParser.urlencoded({ extended: false }));
app.use(session({secret:"secretpass123456"}));
app.use(flash());
app.use(expressValidator());
app.use(methodOverride(function(req, res){
if (req.body && typeof req.body == 'object' && '_method' in req.body)
  {
      var method = req.body._method;
      delete req.body._method;
      return method;
    }
  }));
 
app.use(cookieParser());
app.use(express.static(path.join(__dirname, 'public')));
 
/*------------------------------------------
    connection peer, register as middleware
    type koneksi : single,pool and request
-------------------------------------------*/
app.use(
    connection(mysql,{
        host: 'localhost',
        user: 'root', // your mysql user
        password : '123456', // your mysql password
        port : 3306, //port mysql
        database:'nodejs' // your database name
    },'pool') //or single
 
);
 
app.use('/', index);
app.use('/customers', customers);
app.use('/users', users);
 
// catch 404 and forward to error handler
app.use(function(req, res, next) {
  var err = new Error('Not Found');
  err.status = 404;
  next(err);
});
 
// error handler
app.use(function(err, req, res, next) {
  // set locals, only providing error in development
  res.locals.message = err.message;
  res.locals.error = req.app.get('env') === 'development' ? err : {};
 
  // render the error page
  res.status(err.status || 500);
  res.render('error');
});
 
module.exports = app;

A brief description :

Express-session needs a secret key

1
app.use(session({secret:"secretpass123456"}));

The script below is used to be able to use the DELETE and PUT method on method-override package

1
2
3
4
5
6
7
8
app.use(methodOverride(function(req, res){
if (req.body && typeof req.body == 'object' && '_method' in req.body)
  {
      var method = req.body._method;
      delete req.body._method;
      return method;
    }
  }));

To connect MySQL with Node.js, we need to declare the initial connection with the following code

1
2
3
4
5
6
7
8
9
10
app.use(
    connection(mysql,{
        host: 'localhost',
        user: 'root', // your mysql user
        password : '123456', // your mysql password
        port : 3306, //port mysql
        database:'nodejs' // your database name
    },'pool') //or single
 
);

In this simple tutorial, we will create a CRUD to the customer so that we need to create a new route with the name customers.js

1
2
3
app.use('/', index);
app.use('/customers', customers);
app.use('/users', users);

The next step creates a new route file in the folder with the name customers.js routes

Create Routes Customers Tutorial Crud With Node Js Express Js Adminlte And Mysql

Read the customer MySQL data

Let customers.js file empty, because first, we will create a new page to display a list of customers.

Create a folder called customer in the folder views, we will create a new view to display the customer list page. Create a file named list.jade and copy the following code

1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
extends ../layout/base
block content
section.content-header
h1
| Blank Page
small it all starts here
ol.breadcrumb
li
a(href='#')
i.fa.fa-dashboard
| Level
li.active Here
section.content
.box
.box-header.with-border
h3.box-title
| Customer
.box-tools.pull-right
button(type='button', data-widget='collapse', data-toggle='tooltip',title='collapse').btn.btn-box-tool
i.fa.fa-minus
.box-body
- if(messages.msg_info)
.alert.alert-success.alert-dismissable
button.close(type='button', data-dismiss='alert', aria-hidden='true')
| ×
h4
i.icon.fa.fa-check
| Success!
| !{messages.msg_info}
- if(messages.msg_error)
.alert.alert-danger.alert-dismissable
button.close(type='button', data-dismiss='alert', aria-hidden='true')
| ×
h4
i.icon.fa.fa-ban
| Alert!
| !{messages.msg_error}
a(href='customers/add').pull-left.btn.btn-primary
i.fa.fa-plus
|  Add Customer
.data-table
table.table.table-bordered
tr
th
| No
th
| Name
th
| Address
th
| Phone
th
| Email
th
| Action
if messages.msg_error
| !{messages.msg_error}
else
for row, index in data
tr
td #{index+1}
td #{row.name}
td #{row.address}
td #{row.email}
td #{row.phone}
td
div(style='display:inline-block')
a(href='/customers/edit/#{row.id}').btn.btn-sm.btn-primary
i.fa.fa-edit
|
div(style='display:inline-block')
form(method='post', action='/customers/delete/#{row.id}')
input(type="hidden",name="_method", value="DELETE")
button.btn.btn-sm.btn-danger(type='submit')
i.fa.fa-remove

Note : Remember, writing jade template engine is A clean, whitespace-sensitive template. So it needs to be carefully and careful

Then open routes customers.js that we make before and copy the following script:

1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
var express = require('express');
var router = express.Router();
 
/* GET Customer page. */
 
router.get('/', function(req, res, next) {
req.getConnection(function(err,connection){
var query = connection.query('SELECT * FROM customer',function(err,rows)
{
if(err)
var errornya  = ("Error Selecting : %s ",err );  
req.flash('msg_error', errornya);  
res.render('customer/list',{title:"Customers",data:rows});
});
     });
});
module.exports = router;

Run the following command in a terminal or command prompt

1
DEBUG=expressproject:* npm start

If using windows add the character ” & “

1
DEBUG=expressproject:* & npm start

Then open your browser and enter the following URL address to open a customer list
http://localhost:3000/customers

Customers Page Tutorial Create Crud With Mysql Node Js Express Adminlte For Beginner

A simple explanation :

1
2
3
4
5
6
7
8
9
10
11
12
13
router.get('/', function(req, res, next) {
req.getConnection(function(err,connection){
var query = connection.query('SELECT * FROM customer',function(err,rows)
{
if(err)
var errornya  = ("Error Selecting : %s ",err );  
req.flash('msg_error', errornya);  
res.render('customer/list',{title:"Customers",data:rows});
});
 
         //console.log(query.sql);
     });
});

connection.query used to run a MySQL query. Error when doing MySQL query will be accommodated into the “err” variable. Then if there is an error, to display the error message, using the express-flash req.flash (‘msg_error’, error). Mysql query data is collected into the “rows” variable as a JSON form.

To display the customer data on file list.jade, looping required as follows

1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
for row, index in data
tr
td #{index+1}
td #{row.name}
td #{row.address}
td #{row.email}
td #{row.phone}
td
div(style='display:inline-block')
a(href='/customers/edit/#{row.id}').btn.btn-sm.btn-primary
i.fa.fa-edit
|
div(style='display:inline-block')
form(method='post', action='/customers/delete/#{row.id}')
input(type="hidden",name="_method", value="DELETE")
button.btn.btn-sm.btn-danger(type='submit')
i.fa.fa-remove

In the delete button, there is an input with hidden type that will be used to override the DELETE method

The session read customer data from mysql has been completed, the next step will create a new customer

CREATE a new customer

create a new view page as add-customer.js in the folder views/customer/add-customer.js and copy the following code

1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
extends ../layout/base
block content
section.content-header
h1
| Blank Page
small it all starts here
ol.breadcrumb
li
a(href='#')
i.fa.fa-dashboard
| Level
li.active Here
section.content
.box
.box-header.with-border
h3.box-title
| Customer
.box-tools.pull-right
button(type='button', data-widget='collapse', data-toggle='tooltip',title='collapse').btn.btn-box-tool
i.fa.fa-minus
.box-body
form(role='form',method='post' action='/customers/add')
.row
.col-xs-6
.box-body
- if (messages.msg_error)
.alert.alert-danger.alert-dismissable
button.close(type='button', data-dismiss='alert', aria-hidden='true')
| ×
h4
i.icon.fa.fa-ban
| Alert!
| !{messages.msg_error}
.form-group
label
| Name
input(type='text',value='#{name}',name='name',placeholder='Enter Name', autofocus).form-control
.form-group
label
| Address
input(type='text',name='address',placeholder='Enter address').form-control
.form-group
label
| Email
input(type='text',value='#{email}',name='email',placeholder='Enter Address').form-control
.form-group
label
| Phone
input(type='text',name='phone',placeholder='Enter Phone').form-control
.box-footer
button(type='submit').btn.btn-primary
| Submit
a(href='/customers').btn.btn-primary.pull-right
| Back

Then add the script on the following customer.js routes

1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
router.post('/add', function(req, res, next) {
req.assert('name', 'Please fill the name').notEmpty();
var errors = req.validationErrors();
if (!errors) {
 
v_name = req.sanitize( 'name' ).escape().trim();
v_email = req.sanitize( 'email' ).escape().trim();
v_address = req.sanitize( 'address' ).escape().trim();
v_phone = req.sanitize( 'phone' ).escape();
 
var customer = {
name: v_name,
address: v_address,
email: v_email,
phone : v_phone
}
 
var insert_sql = 'INSERT INTO customer SET ?';
req.getConnection(function(err,connection){
var query = connection.query(insert_sql, customer, function(err, result){
if(err)
{
var errors_detail  = ("Error Insert : %s ",err );  
req.flash('msg_error', errors_detail);
res.render('customer/add-customer',
{
name: req.param('name'),
address: req.param('address'),
email: req.param('email'),
phone: req.param('phone'),
});
}else{
req.flash('msg_info', 'Create customer success');
res.redirect('/customers');
}
});
});
}else{
console.log(errors);
errors_detail = "
 
Sory there are error
<ul>";
for (i in errors)
{
error = errors[i];
errors_detail += '
<li>'+error.msg+'</li>
 
';
}
errors_detail += "</ul>
 
";
req.flash('msg_error', errors_detail);
res.render('customer/add-customer',
{
name: req.param('name'),
address: req.param('address')
});
}
 
});
 
router.get('/add', function(req, res, next) {
res.render( 'customer/add-customer',
{
title: 'Add New Customer',
name: '',
email: '',
phone:'',
address:''
});
});

Explanation :

When the URL localhost: 3000/customers/add loaded, the server will call the GET method. After pressing the save button, the server will execute the POST method.

1
2
req.assert('name', 'Name can').notEmpty();
var errors = req.validationErrors();

The above code is used to validate the input name. The entire function of validation, you can learn in https://github.com/chriso/validator.js

Save and run the node.js server, if successful it will be as shown below

Add Page

Error Alert In Create Customer

Successfull Create New Customer And Redirect To Customer List Page Crud With Nodejs And Express

Until this stage, the process of creating a new customer has been completed. The next stage is the process to update customer data. Let’s continue the following node.js express tutorial

Update the customer data

Make an edit page with name edit.jade on the folder views/customer/edit.jade. Then copy the following code

1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
extends ../layout/base
block content
section.content-header
h1
| Edit Customer
small menu for editing customer data
ol.breadcrumb
li
a(href='#')
i.fa.fa-dashboard
| Level
li.active Here
section.content
.box
.box-header.with-border
h3.box-title
| Customer
.box-tools.pull-right
button(type='button', data-widget='collapse', data-toggle='tooltip',title='collapse').btn.btn-box-tool
i.fa.fa-minus
.box-body
form(role='form',method='post' action='/customers/edit/#{(id==undefined) ? data.id : id}')
.row
.col-xs-6
.box-body
- if (messages.msg_error)
.alert.alert-danger.alert-dismissable
button.close(type='button', data-dismiss='alert', aria-hidden='true')
| ×
h4
i.icon.fa.fa-ban
| Alert!
| !{messages.msg_error}
- if (messages.msg_info)
.alert.alert-success.alert-dismissable
button.close(type='button', data-dismiss='alert', aria-hidden='true')
| ×
h4
i.icon.fa.fa-ban
| Success!
| !{messages.msg_info}
.form-group
label
| Name
input(type='text',value="#{data.name}",name='name',placeholder='Enter Name', autofocus).form-control
.form-group
label
| Address
input(type='text',value="#{ (address == undefined) ? data.address : address }",name='address',placeholder='Enter address').form-control
.form-group
label
| Email
input(type='text',value="#{ (email == undefined) ? data.email : email }",name='email',placeholder='Enter Address').form-control
.form-group
label
| Phone
input(type='text',value="#{ (phone == undefined) ? data.phone : phone }",name='phone',placeholder='Enter Phone').form-control
.box-footer
input(type="hidden",name="_method", value="PUT")
button(type='submit').btn.btn-primary
i.fa.fa-pencil
|  Edit
a(href='/customers').btn.btn-primary.pull-right
| Back

Then add a new route for editing data on the file routes/customers.js. In this session, PUT method will be used to update the customer data. Please copy the following code.

1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
router.get('/edit/(:id)', function(req,res,next){
req.getConnection(function(err,connection){
var query = connection.query('SELECT * FROM customer where id='+req.params.id,function(err,rows)
{
if(err)
{
var errornya  = ("Error Selecting : %s ",err );  
req.flash('msg_error', errors_detail);
res.redirect('/customers');
}else
{
if(rows.length <=0)
{
req.flash('msg_error', "Customer can't be find!");
res.redirect('/customers');
}
else
{
console.log(rows);
res.render('customer/edit',{title:"Edit ",data:rows[0]});
 
}
}
 
});
});
});
router.put('/edit/(:id)', function(req,res,next){
req.assert('name', 'Please fill the name').notEmpty();
var errors = req.validationErrors();
if (!errors) {
v_name = req.sanitize( 'name' ).escape().trim();
v_email = req.sanitize( 'email' ).escape().trim();
v_address = req.sanitize( 'address' ).escape().trim();
v_phone = req.sanitize( 'phone' ).escape();
 
var customer = {
name: v_name,
address: v_address,
email: v_email,
phone : v_phone
}
 
var update_sql = 'update customer SET ? where id = '+req.params.id;
req.getConnection(function(err,connection){
var query = connection.query(update_sql, customer, function(err, result){
if(err)
{
var errors_detail  = ("Error Update : %s ",err );  
req.flash('msg_error', errors_detail);
res.render('customer/edit',
{
name: req.param('name'),
address: req.param('address'),
email: req.param('email'),
phone: req.param('phone'),
});
}else{
req.flash('msg_info', 'Update customer success');
res.redirect('/customers/edit/'+req.params.id);
}
});
});
}else{
 
console.log(errors);
errors_detail = "
 
Sory there are error
<ul>";
for (i in errors)
{
error = errors[i];
errors_detail += '
<li>'+error.msg+'</li>
 
';
}
errors_detail += "</ul>
 
";
req.flash('msg_error', errors_detail);
res.render('customer/add-customer',
{
name: req.param('name'),
address: req.param('address')
});
}
});

Run the node.js server and load page localhost:3000/customers, and press the edit button. If successful will be as shown below

Edit Page Node Js Express Js And Mysql

Edit Page Successfull Alert

If you ask why should use the PUT method to perform the update function?? I found an interesting answer to check out, please visit

http://stackoverflow.com/questions/630453/put-vs-post-in-rest

up here UPDATE customer data stage has been completed.

DELETE the customer data

At this session, the DELETE method will be used. Add routes.delete on customers.js file and copy the following code

1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
router.delete('/delete/(:id)', function(req, res, next) {
req.getConnection(function(err,connection){
var customer = {
id: req.params.id,
}
var delete_sql = 'delete from customer where ?';
req.getConnection(function(err,connection){
var query = connection.query(delete_sql, customer, function(err, result){
if(err)
{
var errors_detail  = ("Error Delete : %s ",err);
req.flash('msg_error', errors_detail);
res.redirect('/customers');
}
else{
req.flash('msg_info', 'Delete Customer Success');
res.redirect('/customers');
}
});
});
});
});

Save and run Node.js server. Up here the tutorial creates a crud using node.js has been completed. Customers.js overall code like the following code

1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
181
182
183
184
185
186
187
188
189
190
191
192
193
194
195
196
197
198
199
200
201
202
203
204
205
206
207
208
var express = require('express');
var router = express.Router();
 
/* GET Customer page. */
 
router.get('/', function(req, res, next) {
req.getConnection(function(err,connection){
var query = connection.query('SELECT * FROM customer',function(err,rows)
{
if(err)
var errornya  = ("Error Selecting : %s ",err );  
req.flash('msg_error', errornya);  
res.render('customer/list',{title:"Customers",data:rows});
});
         //console.log(query.sql);
     });
});
 
router.delete('/delete/(:id)', function(req, res, next) {
req.getConnection(function(err,connection){
var customer = {
id: req.params.id,
}
var delete_sql = 'delete from customer where ?';
req.getConnection(function(err,connection){
var query = connection.query(delete_sql, customer, function(err, result){
if(err)
{
var errors_detail  = ("Error Delete : %s ",err);
req.flash('msg_error', errors_detail);
res.redirect('/customers');
}
else{
req.flash('msg_info', 'Delete Customer Success');
res.redirect('/customers');
}
});
});
});
});
router.get('/edit/(:id)', function(req,res,next){
req.getConnection(function(err,connection){
var query = connection.query('SELECT * FROM customer where id='+req.params.id,function(err,rows)
{
if(err)
{
var errornya  = ("Error Selecting : %s ",err );  
req.flash('msg_error', errors_detail);
res.redirect('/customers');
}else
{
if(rows.length <=0)
{
req.flash('msg_error', "Customer can't be find!");
res.redirect('/customers');
}
else
{
console.log(rows);
res.render('customer/edit',{title:"Edit ",data:rows[0]});
 
}
}
 
});
});
});
router.put('/edit/(:id)', function(req,res,next){
req.assert('name', 'Please fill the name').notEmpty();
var errors = req.validationErrors();
if (!errors) {
v_name = req.sanitize( 'name' ).escape().trim();
v_email = req.sanitize( 'email' ).escape().trim();
v_address = req.sanitize( 'address' ).escape().trim();
v_phone = req.sanitize( 'phone' ).escape();
 
var customer = {
name: v_name,
address: v_address,
email: v_email,
phone : v_phone
}
 
var update_sql = 'update customer SET ? where id = '+req.params.id;
req.getConnection(function(err,connection){
var query = connection.query(update_sql, customer, function(err, result){
if(err)
{
var errors_detail  = ("Error Update : %s ",err );  
req.flash('msg_error', errors_detail);
res.render('customer/edit',
{
name: req.param('name'),
address: req.param('address'),
email: req.param('email'),
phone: req.param('phone'),
});
}else{
req.flash('msg_info', 'Update customer success');
res.redirect('/customers/edit/'+req.params.id);
}
});
});
}else{
 
console.log(errors);
errors_detail = "
 
Sory there are error
<ul>";
for (i in errors)
{
error = errors[i];
errors_detail += '
<li>'+error.msg+'</li>
 
';
}
errors_detail += "</ul>
 
";
req.flash('msg_error', errors_detail);
res.render('customer/add-customer',
{
name: req.param('name'),
address: req.param('address')
});
}
});
 
router.post('/add', function(req, res, next) {
req.assert('name', 'Please fill the name').notEmpty();
var errors = req.validationErrors();
if (!errors) {
 
v_name = req.sanitize( 'name' ).escape().trim();
v_email = req.sanitize( 'email' ).escape().trim();
v_address = req.sanitize( 'address' ).escape().trim();
v_phone = req.sanitize( 'phone' ).escape();
 
var customer = {
name: v_name,
address: v_address,
email: v_email,
phone : v_phone
}
 
var insert_sql = 'INSERT INTO customer SET ?';
req.getConnection(function(err,connection){
var query = connection.query(insert_sql, customer, function(err, result){
if(err)
{
var errors_detail  = ("Error Insert : %s ",err );  
req.flash('msg_error', errors_detail);
res.render('customer/add-customer',
{
name: req.param('name'),
address: req.param('address'),
email: req.param('email'),
phone: req.param('phone'),
});
}else{
req.flash('msg_info', 'Create customer success');
res.redirect('/customers');
}
});
});
}else{
 
console.log(errors);
errors_detail = "
 
Sory there are error
<ul>";
for (i in errors)
{
error = errors[i];
errors_detail += '
<li>'+error.msg+'</li>
 
';
}
errors_detail += "</ul>
 
";
req.flash('msg_error', errors_detail);
res.render('customer/add-customer',
{
name: req.param('name'),
address: req.param('address')
});
}
 
});
 
router.get('/add', function(req, res, next) {
res.render( 'customer/add-customer',
{
title: 'Add New Customer',
name: '',
email: '',
phone:'',
address:''
});
});
 
module.exports = router;

Project complete CRUD express mysql above can be downloaded at the following link, please share this article via the download button below to open the download button

[sociallocker id=58]

Link : expressproject-crud download

Password : seegatesite.com

[/sociallocker]

Thus article about Create CRUD With Node.Js , Express, MySQL, AdminLTE Tutorial For Beginner. Hopefully useful.

If there is any questions or suggestions, please use the comment fields below.

Another Javascript Related Post :

Reader Interactions

Comments

  1. Hi there.

    Cann you please help me? Im having problems with calling the function on router.get.
    Problems I’m having is “req.getConnection is not a function” when I try to click the page.

    Thanks

    Reply

    • The code sequences should be correct
      [php]
      var express = require(‘express’);
      var path = require(‘path’);
      var favicon = require(‘serve-favicon’);
      var logger = require(‘morgan’);
      var cookieParser = require(‘cookie-parser’);
      var bodyParser = require(‘body-parser’);
      var flash = require(‘express-flash’);
      var session = require(‘express-session’);
      var index = require(‘./routes/index’);
      var users = require(‘./routes/users’);
      var customers = require(‘./routes/customers’);
      var expressValidator = require(‘express-validator’);
      var methodOverride = require(‘method-override’);

      var connection = require(‘express-myconnection’);
      var mysql = require(‘mysql’);
      …………………..
      ………………….
      app.use(
      connection(mysql,{
      host: ‘localhost’,
      user: ‘root’, // your mysql user
      password : ‘123456’, // your mysql password
      port : 3306, //port mysql
      database:’nodejs’ // your database name
      },’pool’) //or single

      );

      app.use(‘/’, index);
      app.use(‘/customers’, customers);
      app.use(‘/users’, users);
      [/php]

      Reply

  5. I get error as it
    home/akshay/expressproject/app.js:32
    if (req.body &amp;&amp; typeof req.body == ‘object’ &amp;&amp; ‘_method’ in req.body)
    ^

    Reply

    • hello,

      Please change these code with

      1
      if (req.body && typeof req.body == 'object' && '_method' in req.body)

      My WordPress change && with &amp;

      hope fix the problem

      Reply

  7. I have this problem..
    $ node app.js
    express-session deprecated undefined resave option; provide resave option app.js
    :29:9
    express-session deprecated undefined saveUninitialized option; provide saveUnini
    tialized option app.js:29:9
    Some help?

    Reply

  8. how to add more page, i always get error “Router.use() requires middleware function but got a Object”
    after i add “app.use(‘/dashboards’, dashboards);”
    on app.js
    =====
    app.use(‘/’, index);
    app.use(‘/customers’, customers);
    app.use(‘/users’, users);
    app.use(‘/dashboards’, dashboards);
    ====

    Reply

  9. I configured as per your guidelines . But it doesnot look like fully responsive. In mobile view left menu panel is not hiding

    Reply

  13. Hi I have tweeted and liked in facebook, but I cannot download the code. Your project would be helpful for me to cutshot my development time.

    Appreciate if you can share project.

    Reply

Leave a Reply

Your email address will not be published.

Time limit is exhausted. Please reload CAPTCHA.

This site uses Akismet to reduce spam. Learn how your comment data is processed.