CodeIgniter from Scratch: Day 8 – AJAX

Very nice tutorial, but I would like to see, how we can use CI validation library to show errors. Maybe someone could help?

Good tutorial,

You can simply get all the form data by a $(“#form”).serialize() jQuery function.

I was looking around the internet for local (no live validation) client based AJAX validation in particular for the email address in the code example used in this excellent tut, couldn’t find any resource so I hacked this together, it may be useful for a fellow CI student looking into AJAX;

contact form: on submit javascript click function, added code for local email validation …

$(‘#submit’).click(function() {
var name = $(‘#name’).val();
var email = $(‘#email’).val();
var message = $(‘#message’).val();
var re = /^(([^()[\]\\.,;:\s@\”]+(\.[^()[\]\\.,;:\s@\”]+)*)|(\”.+\”))@((\[[0-9]{1,3}\.[0-9]{1,3}\.[0-9]{1,3}\.[0-9]{1,3}\])|(([a-zA-Z\-0-9]+\.)+[a-zA-Z]{2,}))$/;

if (!name || name == ‘Name’) {
alert(‘Please enter your name’);
return false;
} else if (!email || email == ‘Email’){
alert(‘Please enter your email’);
return false;
} else if (!message || message == ‘Message’) {
alert(‘Please enter your message’);
return false;
}

var result = re.test(email);
if (result == false) {
alert(‘Please enter a valid email address’);
return false;
// die();
}

var form_data = {
name: $(‘#name’).val(),
email: $(‘#email’).val(),
message: $(‘#message’).val(),
ajax: ’1′
};

…

Please let me know if it can be improved upon, thanks for these great tuts.

Can you help me? i logged in successfully then when i clicked logout, it will unset & destroy the session but when i clicked the back button of the browser it will show the history… do you have any idea?