I've been looking for an example of updating data with d3.xhr but have not seen anything obvious, or at least of my level of understanding. The following 2 links are close but no cigar:
from stackoverflow
from mbostock’s block
I look around more and found this example in jquery and php. I tried it and understand the code. I would appreciate if you give me an equivalent code in d3.xhr or d3.json. BTW, what is different between d3.xhr and d3.json, and when to use what? Thanks in advance.
<?php
// AJAX & PHP example
// http://iviewsource.com/codingtutorials/learning-how-to-use-jquery-ajax-with-php-video-tutorial/
if ($_GET['ip']) {
$ip = gethostbyname($_GET['ip']);
echo($ip);
exit;
}
?>
<!DOCTYPE html>
<html lang="en">
<head>
<meta charset="utf-8" />
<title>Get Reverse IP</title>
<script src="https://ajax.googleapis.com/ajax/libs/jquery/1.8.3/jquery.min.js">
</script>
</head>
<body>
Please enter a domain name
<input type="text" id="searchip">
<div id="resultip"></div>
<script>
$(document).ready(function() {
$('#searchip').change(function(){
$.ajax({
type: "GET",
url: "ajax.php",
data: 'ip=' + $('#searchip').val(),
success: function(msg){
$('#resultip').html(msg);
}
}); // Ajax Call
}); //event handler
}); //document.ready
</script>
</body>
</html>
I found the solution. In fact it has less coding, :) I sincerely hope that the answer would be useful to someone.
<?php
// AJAX & PHP example
if ($_GET['ip']) {
$ip = gethostbyname($_GET['ip']);
echo($ip);
exit;
}
?>
<!DOCTYPE html>
<html lang="en">
<head>
<meta charset="utf-8" />
<title>Get Reverse IP</title>
<script src="http://d3js.org/d3.v3.min.js"></script>
</head>
<body>
Please enter a domain name
<input type="text" id="searchip">
<div id="resultip"></div>
<script>
d3.select('#searchip').on("change", function() {
d3.xhr('xhr.php?ip='+this.value, function(data) {
d3.select('#resultip').html(data.response);
})
});
</script>
</body>
</html>
Related
Im testing simple phonegap app for adding comment with remote server. ive tested in telerik icenium simulator and in browser and it works. But when I try to test in visual studio emulator and click the button it says "CordovaBrowser_NavigationFailed :: www/index.html?email=fgg#vv.com&comment=Gjjj". I`ve tested on device too, but there nothing happens.
Here is the code.
index.html - the main page
<!DOCTYPE html>
<html lang="en-US">
<head>
<meta charset="UTF-8">
<meta name="viewport" content="width=device-width, initial-scale=1.0, maximum-scale=1.0, user-scalable=no;">
<title>jQuery form post</title>
<script src="cordova.js"></script>
<script src="js/index.js"></script>
<script src="//ajax.googleapis.com/ajax/libs/jquery/1.11.1/jquery.min.js"></script>
<script src="js/post.js"></script>
<script src="js/jquery.mobile-1.4.3.js"></script>
<script>
function onBodyLoad() {
document.addEventListener("deviceready", onDeviceReady, false);
}
</script>
<style>
label, b {
display: block;
}
</style>
</head>
<body onload="onBodyLoad()">
//content
<div id="landmark-1" data-landmark-id="1">
<form>
<label for="email">
<b>Email</b>
<input type="email" id="email" name="email">
</label>
<label for="comment">
<b>Comment</b>
<textarea id="comment" name="comment" cols="30" rows="10"></textarea>
</label>
<input type="submit" value="Save">
</form>
</div>
</body>
</html>
post.js
$(document).bind('deviceready', function () {
$.support.cors = true;
$.mobile.allowCrossDomainPages = true;
$.mobile.pushStateEnabled = false;
$(function () {
$('form').submit(function () {
var landmarkID = $(this).parent().attr('data-landmark-id');
var postData = $(this).serialize();
$.ajax({
type: 'POST',
data: postData + '&lid=' + landmarkID,
//change the url for your project
url: "http://bgg.comxa.com/new.php",
crossDomain: true,
success: function (data) {
console.log(data);
alert('Your comment was successfully added');
},
error: function () {
console.log(data);
alert('There was an error adding your comment');
}
});
return false;
});
});
});
As I understand this error message does not state that there is anything wrong with your index.html file, it does not seem to be able to reach it at all.
Check out this thread: Navigation in phonegap application fails when I use GET variables
There might be something about the way you try to reach your index.html file. Maybe you are going straight to "index.html" and not "www/index.html", as it states in the post answer.
Hope this helps!
After a lot of reading, i think the problem is in webkit prowsers. I`ve read that there is issues with ajax requests in webkit based browsers. I will try the code at real mobile phone device and see...
I would like check the image whether existing on server file system and the file list was store into database. I want to make a ajax call to doing validation then return the result to screen with append effect. Here is my code, but don't work :( Please help me.
UPDATE: Code is workable, but it's not my expectation, because three thousand record with caused timeout and No append effect. thanks
Controller
public function getImageList()
{
$this->load->model('image_model');
$data['list'] = $this->image_model->get_image();
foreach ($data['list'] as $key){
$result[] = $this->imageValidation($key->filename);
}
header('Content-Type: application/x-json; charset=utf-8');
echo(json_encode($result));
}
private function imageValidation($imgfile)
{
if(!file_exists(LOCAL_IMG_TEMP.$imgfile))
{
return "<pre>". $imgfile." Not Find"."</pre>";
}
}
View
<html>
<head>
<meta http-equiv="Content-Type" content="text/html; charset=utf-8">
<script type="text/javascript" src="http://code.jquery.com/jquery-latest.min.js"></script>
<title></title>
</head>
<body>
<script>
function makeAjaxCall(){
$.ajax({
type: "POST",
url: "http://127.0.0.1:8888/index.php/ajax/getImageList",
cache: false,
dataType : "json",
success: function(data){
$("p").append(data);
}
});
}
</script>
</script>
<input type='button' id='PostBtn' value='Check Image' onclick='javascript:makeAjaxCall();' />
<p></p>
</body>
</html>
try to use file_exists()
check it
I am new to AJAX and am experimenting with a simple page that should show a txt file into a specific location. At this point it does not show the vlist.txt file.
Question: Why does this code not display the file (vlist.txt)?
<!DOCTYPE html>
<html>
<head>
<script src="http://ajax.googleapis.com/ajax/libs/jquery/1.10.2/jquery.min.js">
</script>
<script>
$(document).ready(function(){
$("button").click(function(){
$("#div1").load("C:\Users\itpr13266\Desktop\vlist.txt");
});
});
</script>
</head>
<body>
<div id="div1"><h2>Let jQuery AJAX Change This Text</h2>This is where your text will go</div>
<button>Get External Content</button>
</body>
</html>
New Code that was Tried.
<!DOCTYPE html>
<html>
<head>
<script src="http://ajax.googleapis.com/ajax/libs/jquery/1.10.2/jquery.min.js">
</script>
<script>
$(document).ready(function(){
$("button").click(function(){
$("#div1").load(function() {alert( "Load was performed." ););
});
});
</script>
</head>
<body>
<div id="div1"><h2>Let jQuery AJAX Change This Text</h2>This is where your text will go</div>
<button>Get External Content</button>
</body>
</html>
No alert box was displayed so I am not sure that it is even getting to that point.
$().load() can't be used with a local file path like C:\Users\itpr13266\Desktop\vlist.txt.
Put your file on a web server and your code will most likely work.
I am trying to develop a phonegap app that will call to my coldfusion server and return data to the phone app. I have seen a couple of tutorials that do not explain the code on the server side(the .cfc file). Like this one...
http://blog.ryanvikander.com/index.cfm/2012/3/28/Returning-Dynamic-Content-In-A-PhoneGap-App
I was hoping someone could provide some sample code of what the .cfc on my server would look like when it is receiving the request for data.
Here's the example code from that link:
<!doctype html>
<html>
<head>
<meta name="viewport" content="initial-scale=1.0, user-scalable=no, width=device-width" />
<title>My App</title>
<script src="phonegap.js" type="text/javascript" charset="utf-8"></script>
<script src="jquery.js" type="text/javascript" charset="utf-8"></script>
<script type="text/javascript">
jQuery(document).ready(function() {
$.ajax({
url:"http://www.ryanvikander.com/test.cfc?method=getdata",
success: function(data){
var content = $("#content");
content.html(data);
},
error: function(e){
console.log(e);
}
});
});
</script>
</head>
<body>
<div id="title_bar">Test</div>
This is a test
<div id="content"></div>
</body>
</html>
The url http://www.ryanvikander.com/test.cfc?method=getdata doesn't have to be anything more than this:
<cfcomponent>
<cffunction name="getdata" access="remote" output="false">
<cfreturn "Hello World!" />
</cffunction>
</cfcomponent>
Here, the success callback function will put the string "Hello World!" into <div id="content"></div>
If the function renderdata() returned a query, you could pass the querystring parameters returnformat=json and optionally queryFormat=column to have ColdFusion convert the query data into JSON. If the returned data is formatted in JSON, then you could iterate over that data to render HTML as in any website.
I have a html-document, in which I want to load a table from an extern html-file. In this file should be another load to the same file. When I start this, I get an enless loop.
Can anybody tell me how I can still end the loading after 10 times?
Ok, here is some of my code
html-document:
<html>
<head>
<script type="text/javascript" src="jquery-1.6.2.min.js"></script>
<script type="text/javascript">
function table(){
$.ajax({
url: "table.html",
success: function(data) {$('#test1').html(data);},
error: function(){alert('no!');},
});
</script>
</head>
<body>
<input type="Button" onclick="table();" value="KNOPF" id="knopf"/>
<p id="test1">TEST </p>
</body>
</html>
table
<html>
<head>
<script type="text/javascript" src="jquery-1.6.2.min.js"></script>
<script type="text/javascript">
$.ajax({
url: "table.html",
success: function(data) {
$('#test1').html(data);},
error: function(){alert('no!');},
});
</script>
</head>
<body>
<p id="test1"><p>
<table border="1">
<tr><td>1</td></tr>
</table>
</body>
</html>
It might be probably server-side redirecting/header redirecting. Check if you have some redirects in your script(s)