BackboneJS with normal php server - php

I'm new to backboneJS so i have a problem sync the data from PHP server with backbone that i dont even get the json data from the php server to backbone model!Help me
Here is my php code
$data = array('1'=>array('id'=> 1, 'description'=>'Pick up milk', 'status'=> 'incomplete' ));
echo json_encode($data);
and the backbone js code
<html>
<head>
<script src="jquery-1.9.0.min.js" type="text/javascript"></script>
<script src="underscore-min.js" type="text/javascript"></script>
<script src="backbone.js" type="text/javascript"></script>
</head>
<script type="text/javascript">
var TodoItem = Backbone.Model.extend({});
var todoItem = new TodoItem();
todoItem.url = '/backboneJS/todo.php';
console.log(todoItem.fetch());
</script>
<body>
</body>
</html>
I cant get the json data from the php to the backbone.What wrong with my code ?


<!doctype html>
<html>
<head>
<script src="http://code.jquery.com/jquery-2.0.3.min.js" type="text/javascript"></script>
<script src="//cdnjs.cloudflare.com/ajax/libs/underscore.js/1.5.1/underscore-min.js" type="text/javascript"></script>
<script src="//cdnjs.cloudflare.com/ajax/libs/backbone.js/1.0.0/backbone-min.js" type="text/javascript"></script>
</head>
<body>
</body>
<script type="text/javascript">
var TodoModel = Backbone.Model.extend({
urlRoot: '/backboneJS/todo.php',
initialize: function(){
// Place init message or else
}
});
var todoItem = new TodoModel();
todoItem.fetch({
success: function(todoResult){
console.log(todoResult);
console.log(todoItem.get(1));
}
});
</script>
</html>
Sticking to design pattern also, if you call your todoItem outside of nested function its likely to be executed before the actual fetch() is performed. Tested locally.

Related

Pass JQuery variables to php

I want to pass jQuery variable to php file ,
this is my_js.js file
function updates() {
$.getJSON("php/fetch.php", function(data) {
$.each(data.result, function(){
var s_id = this['sender_id'];
});
});
}
and i want to display it here in php file,
<html>
<head><title>Pass jquery var to php file</title>
</head>
<body>
<div> <?php echo $s_id ; ?> </div>
<script type="text/javascript" src="my_js.js"></script>
<script type="text/javascript" src="jquery.js"></script>
</body>
</html>

You might consider using jQuery to set the s_id value in the page.
You can modify your HTML as follows (the important part being the added span element):
<html>
<head><title>Pass jquery var to php file</title>
</head>
<body>
<div><span id="s_id"></span></div>
<script type="text/javascript" src="my_js.js"></script>
<script type="text/javascript" src="jquery.js"></script>
</body>
</html>
And you can use jQuery in your getJSON callback to set the value as follows to find your added span element and modify its text:
function updates() {
$.getJSON("php/fetch.php", function(data) {
$.each(data.result, function(){
$("#s_id").text(this['sender_id']);
});
});
}

Simple Ajax request with php

I'm trying to pass a simple variable from my jQuery to my php and then echo it on my HTML. It doesn't seem to work though.
I can't get my variable $result to show up on my page. Any thoughts? The Ajax POST seems to be working fine. The problem seems to be communication between php and HTML.
index.html:
<!DOCTYPE html>
<html>
<head>
<title>My Site</title>
<script src="http://code.jquery.com/jquery-latest.min.js" type="text/javascript"></script>
<script type='text/javascript' src='front.js'></script>
</head>
<body>
<?php echo $result; ?>
</body>
</html>
front.js:
$(document).ready(function() {
$.post('/back.php', {name: "Bob"}, function(data) {
});
});
back.php:
<?php $result = $_POST['name']; ?>

Try this
index.html:
<!DOCTYPE html>
<html>
<head>
<title>My Site</title>
<script src="http://code.jquery.com/jquery-latest.min.js" type="text/javascript"></script>
<script type='text/javascript' src='front.js'></script>
</head>
<body>
</body>
</html>
front.js:
$(document).ready(function() {
$.post('/back.php', {name: "Bob"}, function(result) {
$('body').html(result);
});
});
back.php:
<?php echo $_POST['name']; ?>

Change this
<body>
<div id="show-data"></div>
</body>
And
$(document).ready(function() {
$.post('/back.php', {name: "Bob"}, function(data) {
$('#show-data').html(data);
});
});
And
<?php echo $result = $_POST['name']; ?>

Change Your PHP Code :
<?php echo $_POST['name']; ?>
And Also Your HTML Code :
<!DOCTYPE html>
<html>
<head>
<title>My Site</title>
<script src="http://code.jquery.com/jquery-latest.min.js" type="text/javascript"></script>
</head>
<body>
</body>
<script>
$(document).ready(function() {
$.post('/back.php', {name: "Bob"}, function(data) {
$('body').append(data)});
});
</script>
</html>

$result in back.php and $result in index.html aren't related. Setting it in back.php has no effect on index.html. If you echo something in back.php however, that output will be passed to the empty callback function you have in your $.post() call. You can handle the data there and use javascript to insert it into your page.

Just add the following line to your code: $('body').html(data);

Like your question we have three different files one is index.html
1) index.html
<!DOCTYPE html>
<html>
<head>
<title>My Site</title>
<script src="http://code.jquery.com/jquery-latest.min.js" type="text/javascript"></script>
<script type='text/javascript' src='front.js'></script>
</head>
<body>
<?php echo $result; ?>
</body>
</html>
2) front.js
$(document).load(function(){
$.ajax({
url: '/back.php',
type: 'POST',
data: 'name=Bob',
async: false,
success: function(data) {
$('body').html(data);
},
cache: false
});
});
3) back.php
<?php echo $result = $_POST['name']; ?>
Now use this, your files will work out. Please let me know if you have any queries.

Puh, lot of mistakes. First, your index.html contains PHP - Code which won't be executed because this is not a PHP - Skript (ending with php).
Second you are saving the value of your request to back.php in a variable, which won't be existing after the request is finished. You can either:
rename index.html to index.php, exchange your statement to
<?php echo $_POST['name']; ?>
and change your request to
$.get('/index.php', {name: "Bob"}, function(data) {
});
which would cause a continously reloading of the site,
or store your result in a $_SESSION (see PHP Session Handling), and retrieve that in your index.php (you got to rename the file).

Can't figure out jQuery JCombo

I am new in jquery. I was trying to use Jcombo plugin but that one wasn't working for me. Here what I did :
<!doctype html>
<head>
<script type="text/javascript" src="http://code.jquery.com/jquery-latest.js"></script>
<script type="text/javascript" src="http://www.prodiven.com/jcombo/jquery.jCombo.min.js"></script>
<script type="text/javascript">
$(function() {
/* simple combos */
$("#state1").jCombo("getStates.php");
});
</script>
</head>
<body>
<select id="state1"></select>
</body>
</html>
getStates.php file output was like this:
{"1":"Bangladesh","2":"Arabic"}
Any idea why I can't see drop down selection. Thanks

I got the solution .. It was problem with the plugin. I just noticed that in jCombo.min.js script dataType was "jsonp" I changed it to :
dataType:"json"
now it's working...

How do I access the datafields in the source object of a jqxlistbox

I'm trying to bind a JQXListbox to JSON data and display two fields in the result.
I want to access the datafields in the source object as strings in order to concatenate them so as I can set the resulting string as the displayMember property of jqxListBox. I've tried calling ToString() on the source.datafields[x] array but that doesn't work either.
I'm not sure if the terminology was correct there. Thanks for any help you can give.
Here is the code.
<!DOCTYPE html>
<html>
<head>
<title></title>
<meta http-equiv="Content-Type" content="text/html; charset=UTF-8">
<link href="scripts/jqwidgets/styles/jqx.base.css" rel="stylesheet" type="text/css">
<link href="scripts/jqwidgets/styles/jqx.classic.css" rel="stylesheet" type="text/css">
<script src="scripts/jquery-1.9.1.js" type="text/javascript"></script>
<script src="scripts/jqwidgets/jqxcore.js" type="text/javascript"></script>
<script src="scripts/jqwidgets/jqxbuttons.js" type="text/javascript"></script>
<script src="scripts/jqwidgets/jqxscrollbar.js" type="text/javascript"></script>
<script src="scripts/jqwidgets/jqxdata.js" type="text/javascript"></script>
<script src="scripts/jqwidgets/jqxlistbox.js" type="text/javascript"></script>
</head>
<body>
<div id="jqxlistbox"></div>
<script type="text/javascript">
var string;
$(document).ready(function() {
// prepare the data
var source =
{
datatype: "json",
datafields: [
{name: 'firstname'},
{name: 'lastname'}
],
url: 'my url is here'
};
string = source.datafields[0] + source.datafields[1];
alert(string);
var dataAdapter = new $.jqx.dataAdapter(source);
$("#jqxlistbox").jqxListBox(
{
source: dataAdapter,
theme: 'classic',
width: 200,
height: 250,
displayMember: 'string',
valueMember: 'firstname'
});
});
</script>
</body>
</html>

I think that the "beforeLoadComplete" callback of the jqxDataAdapter plug-in will help you to customize the loaded data through the plug-in. For more information about that function, please look at: jqxDataAdapter plug-in

jsonp callback not working - code included

here i am learning jsonp and i have a little problems with a simple code ,
what i am trying to do is a simple jsonp callback but it seems to not working
here is the code:
[index.php]
<html>
<head>
<script type="text/javascript" id="myJSONPCall" src="http://mySubDomain.comoj.com/jsoncall.php?jsonCallback=myCallback"></script>
<script type="text/javascript">
function myCallback(obj) {
alert(obj.text);
}
</script>
</head>
<body>
</body>
</html>
[jsoncall.php]
<?php
$myObject = array(
"text" => "Hello, I am data from the remote server.",
"created_at" => "Thu May 07 21:36:12 +0000 2009"
);
$myJSONObject = json_encode($myObject);
$myJSONCallback = filter_var($_REQUEST['jsonCallback'], FILTER_SANITIZE_STRING);
print "$myJSONCallback($myJSONObject)"
?>
right away , nothing happen.
what exactly goes wrong here?

You need to define your function before calling the url that loads the response
just switch the order your your scripts.
<html>
<head>
<script type="text/javascript">
function myCallback(obj) {
alert(obj.text);
}
</script>
<script type="text/javascript" id="myJSONPCall" src="http://mySubDomain.comoj.com/jsoncall.php?jsonCallback=myCallback"></script>
</head>
<body>
</body>
</html>

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