// tweets.js
// JavaScript code for Tweets lecture example
// INFO 343, Autumn 2012
// Morgan Doocy
// When the page is ready, use JSONP to fetch recent tweets with the search term
// 'beer'.
$(document).ready(function() {
$.ajax('http://search.twitter.com/search.json', {
data: { q: "beer" }, // search.json?q=beer
dataType: 'jsonp', // MUST include this to fetch data from another domain!
success: injectTweet,
error: ajaxError
});
});
// Alert some information about the search query, and inject the first tweet's
// text into the page.
function injectTweet(data) {
alert("Search for '" + data.query + "' completed in " + data.completed_in + " seconds.");
var $p = $('<p>').text("The first tweet says: '" + data.results[0].text + "'");
$p.appendTo('#output');
}
// Alert a useful debugging message based on information provided by jQuery.
// (Provided ajaxError function from lecture slides.)
function ajaxError(jqxhr, type, error) {
var msg = "An Ajax error occurred!\n\n";
if (type == 'error') {
if (jqxhr.readyState == 0) {
// Request was never made - security block?
msg += "Looks like the browser security-blocked the request.";
} else {
// Probably an HTTP error.
msg += 'Error code: ' + jqxhr.status + "\n" +
'Error text: ' + error + "\n" +
'Full content of response: \n\n' + jqxhr.responseText;
}
} else {
msg += 'Error type: ' + type;
if (error != "") {
msg += "\nError text: " + error;
}
}
alert(msg);
}