how to create a log in window where my username and password is from a server?
Question
i have this html and javascript program code for log in window. my html is:
<body>
<div >
<h1>Sign in to me</h1>
<form id="login" method="get" action='exercises/exercise6/DynamicMenu_createTab_json.html'>
<div>UserName<input type="text" id="username" value="admin"/></div>
<div>Password<input type="password" id="password"/></div>
<div><input type="button" id="btnLogin" value="Login"/></div>
</div>
</body>
my javascript is:
$(document).ready(function(){
$('#username').focus();
$('form#login :submit').addClass('inputSubmitBtn').click(function(){
if($('#username').val() != "jay" || $('#password').val() != "son"){
alert('username/password incorrect');
$("#username").focus();
return false;
};
});
});
there's no problem in this program. what i wanted to do is i want to log in using my username and password from a server. and if it is succesful, it will open my other exercise html on the same window. here's my current code:
$('form#login :submit').addClass('inputSubmitBtn').click(function(){
var params = {
"UserName":$("#username").val(),
"Password":$("#password").val()
};
$.getJSON(
'process.php', 'path=Login&json=' + JSON.stringify(params),
function(data) {
if ('error' in data)
{
alert('password and username incorrect');
return false;
}
else
{
$("#sessionID").html(data["result"]["SessionID"]);
}
});
});
this code doesn't function right. please, can someone help me on this...
EDIT: here's my php code:
<?php
echo(file_get_contents("http://localhost/" . $_GET["path"] . "?json=" . $_GET["json"]));
?>
1 answers
solution1
1 ACCPTED 2011-03-23 08:33:58
First the :submit selector returns nothing, you don't have a submit button ("type=submit"), so the click listener will never be called. See :submit selector .
Second you don't stop the submit event of the form, so the "action" attribute is used and the form is submitted, canceling the click listener function. (url 'exercises/exercise6/DynamicMenu_createTab_json.html' will be loaded)
You need to stop the event, else the form "action" will fire when the form is submitted.
$('#login :submit').click(function(event){ event.preventDefault(); ... });
And last, a click event listener function on the submit button will not fire 100% of the time.
For exemple when user press "enter" key while in a field of the form, no click on the button and the form is submitted.
Bind a submit event listener on the form instead.
$('#login').submit(function(event){ ... });
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