// quote.js
// JavaScript code for "Quote of the Day" Ajax lecture example
// (Originally from CSE 190 M, Marty Stepp)
// INFO 343, Autumn 2012
// Morgan Doocy
// When the page is ready, attach a click handler to the #fetch button.
$(document).ready(function() {
$('#fetch').click(fetchClick);
});
// Make an Ajax request to quote.php to fetch a new quote.
function fetchClick() {
$.ajax('/lectures/intro-to-ajax/quote.php', {
success: injectQuote,
error: ajaxError,
});
}
// Inject the received quote into the #quote paragraph.
function injectQuote(data) {
$('#quote').text(data);
}
// 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 never went out - 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);
}