ajax to post and return html to display in div
jQuery v 1.9.0
When the page loads I am firing two functions (get_month() & get_todays_events()) and those return the calendar and today's events html.
Sometimes when I refresh the page, it will display the today's events twice and does not display the calendar(month), as seen below.
Half the time it works just fine, as seen below:
There are no errors in the firebug console. It works fine as a stand-alone app, but when I incorporate it into Jasig's uPortal, it messes up.
Then I tried stripping the html that gets sent back from the ajax posts and I noticed the get_todays_events(); may be the culprit, but I still don't know what it could be.
Is there something in the html that may be tripping things up or should I have a delay on firing that function after the get_month(); fires?
$.noConflict();
jQuery(document).ready(function($) {
function get_month()
{
var url_month = jQuery("#days_for_month_url").attr("href");
var form_data = { ajax : '1' };
jQuery.ajax({
type: "POST",
dataType: "html",
url: url_month,
crossDomain: true,
data: form_data,
success: function( default_month_msg ) {
jQuery('#display-month').html(default_month_msg);
} // end success
}); // end ajax
//return false;
}
function get_todays_events()
{
var url_todays_events = jQuery("#todays_events_url").attr("href");
var form_data = { ajax : '1' };
jQuery.ajax({
type: "POST",
dataType: "html",
url: url_todays_events,
crossDomain: true,
data: form_data,
success: function( default_month_msg ) {
jQuery('#display_todays_events').html(default_month_msg);
} // end success
}); // end ajax
//return false;
}
get_month();
console.log("display calendar");
get_todays_events();
console.log("display today's events");
jQuery(document).on('click', "a.view_events", function(e) {
e.preventDefault();
var date = jQuery(this).data('date');
// change if URL changes
var url_events = jQuery("#events_for_day_url").attr("href");
var form_data = {
year : jQuery(this).data('year'),
month : jQuery(this).data('month'),
day : jQuery(this).data('day'),
date : jQuery(this).data('date'),
ajax : '1'
};
jQuery.ajax({
type: 'POST',
dataType: 'html',
url: url_events,
data: form_data,
success: function( msg ) {
jQuery('#display-events').html(msg);
jQuery('#display-event_detail').html('');
jQuery('#display_todays_events').html('');
} // end success
}); // end ajax
return false;
}); // end on.click view-events
jQuery(document).on('click', "a.view_event_details", function(e) {
e.preventDefault();
var url_event_detail = jQuery("#event_detail_url").attr("href");
var form_data = {
event_id : jQuery(this).data('event_id'),
ajax : '1'
};
jQuery.ajax({
type: 'POST',
dataType: 'html',
url: url_event_detail,
data: form_data,
success: function( msg ) {
jQuery('#display-event_detail').html(msg);
jQuery('#display-events').html('');
jQuery('#display_todays_events').html('');
} // end success
}); // end ajax
return false;
}); // end on.click view_event_details
jQuery(document).on('click', "a.month_link", function(e) {
e.preventDefault();
jQuery('#display-events').html('');
var url_days_for_month = jQuery("#days_for_month_url").attr("href");
var form_data = {
month_url : jQuery(this).data('month_url'),
ajax : '1'
};
jQuery.ajax({
type: 'POST',
dataType: 'html',
url: url_days_for_month,
data: form_data,
success: function( msg ) {
jQuery('#display-month').html(msg);
jQuery('#display_todays_events').html('');
} // end success
}); // end ajax
return false;
}); // end on.click view-month
jQuery(document).on('click', "a.view_subscriptions", function(e) {
e.preventDefault();
var url_subscription = jQuery("#subscriptions_url").attr("href");
var form_data = {
ajax : '1'
};
jQuery.ajax({
type: 'POST',
dataType: 'html',
url: url_subscription,
data: form_data,
success: function( msg ) {
jQuery('#display-subscriptions').html(msg);
//jQuery('#display-subscriptions').toggle();
} // end success
}); // end ajax
return false;
}); // end on.click view-subscriptions
jQuery(document).on('click', "#update_subscriptions", function(e) {
e.preventDefault();
var url_update_subscription = jQuery("#update_subscriptions_url").attr("href");
var vals = []
jQuery('input:checkbox[name="calendar[]"]').each(function() {
if (this.checked) {
vals.push(this.value);
}
});
var form_data = {
ajax : '1',
calendar: vals,
};
jQuery.ajax({
type: 'POST',
dataType: 'html',
url: url_update_subscription,
data: form_data,
success: function( msg ) {
get_month();
jQuery('#display-subscriptions-update').html(msg).fadeOut(6000);
jQuery('#display-subscriptions').html('');
jQuery('#display-events').html('');
jQuery('#display_todays_events').html('');
} // end success
}); // end ajax
return false;
}); // end on.click view-subscriptions
}); // end document ready
Here is the html that is returned on success for the get_todays_events() function
<h3>Today's Events</h3>
<p><a href="#" class="view_event_details" data-event_id="68">All About Heroin</a> - 12:30 pm</p>
<p><a href="#" class="view_event_details" data-event_id="67">African Storyteller - Ekow King</a> - 12:30 pm</p>
<p><a href="#" class="view_event_details" data-event_id="66">Men’s Basketball vs. Columbia-Greene Community College</a> - 6:00 pm</p>
UPDATE: checked the net tab in firebug and examined XHR, when using in uPortal, it would fire off two post requests and two get requests. Both POST requests were retuning 0 byte, but the GET requests were returning something. I changed them to GETS, since I wasn't really asking the user to enter data, but click a link that had the data already (that being the date they wanted view events for), so I appended the date value to the URL I was passing into the ajax get request, then it returned it correctly every time.
Answer
Try to add to the ajax call parameters async=false (add this to all the ajax calls).
For example:
jQuery.ajax({
type: "POST",
dataType: "html",
url: url_todays_events,
crossDomain: true,
data: form_data,
async:false,
success: function( default_month_msg ) {
jQuery('#display_todays_events').html(default_month_msg);
} // end success
});