JQuery :: Using .ajaxError And Passing Error Function In Ajax Calls?
Jun 25, 2010
I'm currently rewriting all my ajax calls to use the jquery method (much cleaner code! ) and have declared a default ajaxError function, shown below:
$(document).ajaxError(function(event, request, settings){
alert("There was an error while communicating with the server. URL: " + settings.url);
});
However, now I have a few ajax calls where I want to declare an error function in the ajax call. I was hoping that by declaring an error function in the ajax call, it would replace the default error call I have defined. But that does not appear to be the case, as I continue to first get my ajax function error call, then I also see the above code execute.
I tried calling event.stopImmediatePropagation() from within my ajax error function hoping that it would stop further events firing (ie: the default error event) but that didn't do anything except tell me in firefox that "event" was undefined.
I was hoping I wouldn't have to go through and define an error function to EVERY ajax call.
I've noticed this weird behaviour of jQuery in Safari and Chrome (didn't test on Firefox as I'm using some webkit CSS extensions). After setting up the call like this:
If a timeout occurs (I switch the local webserver off), the 'success' method will be called! More than this in the textStatus parameter there is a string with "success" !!! The error handler doesn't even get called.... (As you may notice the only way I had to tell the problem, was to check the data param if it is null or 0 length. How can I avoid this?
It felt like 99% of everything I do with jQuery involves a database some tree-structure so I figured I'd try jsTree out. I uploaded the demo and the way it seem to work is for every parent in the tree it calls a function get_children (PHP) with AJAX which makes a SELECT-query for that node to get the immediate children.
Am I missing something or isn't that extremely demanding on the database? The way I always do is get as much as I can from the database in one go then put it into PHP-arrays. With that plugin as I've seen a lot is that they put all the database-calls inside a class, do all those queries get pre-loaded or something when you call "new Database"? Or is a SELECT-query for a few rows just not that demanding at all?
Im currently creating a textbox with an AJAX auto-complete feature but have reached a wall. I can create a div below it with a list of results but now need to allow the user to select. I can setup it up with an onClick, easy. But I need help with the arrow buttons as that is how I would like it to function. The script only allows 5 results at a time with each having an id of 0 to 4. Each result is a div, below is this code (created by PHP):
There is a JS file attached to the page this is echoed onto, so what would the code need to be on both the div (mouseup, mousedown...) and then the function that calls.
I am working on an ASP.NET application that make a lot of jquery and javascript calls and trying to optimize the client side code as much as possible. (This web application is only designed to run on special hardware that has very low memory and processing power.)
The profiler in firebug is great for figuring out what calls are taking up the most time. I have already optimized a lot of my selectors and it is much faster.
However the profile shows a lot of jquery error() calls. In the attached image of the firebug profile window you can see it was called 52 times, accounting for 15.4 of the processing time.
Is that normal for jquery to call its error() like that? My code works flawlessy, and there are no error messages in the firefox error console. It seems like that is a significant performance hit. Is there anyway to get more info on what the errors are?
I'm trying to pass titleArray and pointsArray to the task(); I'm getting an error mgs this.assignments() is not a function. I've highlighted this.assignments()
What I want to do is: On a site, when a viewer hits the 'contact us' button, a new page opens with a contact form which will in turn be submitted to a php script on the server.
I want to pass the url of the page that called the form to the php script in a hidden field, so that when the php form handler emails me the form result it tells me what page the viewer was on when they hit the contact me button, and then after that I want to send the viewer back to that page,
In a page I can get the page url using js to get location.href and place it in a variable. But after calling the form page I don't see how to put that variable which I think is global(?) into a hidden form field to post when the form is submitted.
Once it is at the server I have no trouble with the php to do what I want, I just can't see how to get the javascript variable to persist across site pages.
The value of textStatus doesn't seem to be available when using the global handler ajaxError, so it doesn't appear to be possible to determine what the reason for call failure is - this is probably most evident when defining a timeout through ajaxSetup.
Is anyone aware of a workaround for this, and/or is this omission slated to be addressed any time in the near future?
I am using jquery.ajax() to make a POST call to web server which returns HTTP 201 response for successful creation of object at server. Since 201 is a success I expect the success function specified with jquery.ajax to execute but instead it executes the error function specified with jquery.ajax. Here is how I am using jquery.ajax call.
I'm using jQuery 1.4 to hide a div (#cartPop) when the "close" link inside of it (#cartPop a) is clicked. Since I'm using animate() to fade the div out (opacity), I also have to use hide() to get rid of the div once it has faded out (otherwise the invisible div, which is on a higher z-index, blocks the elements on a lower z-index).
Code:
The problem is that the hide() function calls immediately without waiting for the animate() function to run. Even if I append a delay() function before hide() like so:
I'm amending an upload script from Max's AJAX file uploader. [URL] I wish to display the filename after the file uploaded. The text in green are added by myself. However, I failed to display success status after the upload process successful. Do you know where I made the error?
I'm trying to use the jqmodal dialog plugin and everything is working OK except for one minor problem. It seems when I click on the link, the expected action does not occur until I click the second time. Essentially I set up a small test form with a single line put into a table. In that data line is an href, which when clicked calls an AJAX function and returns text, which displays as a dialog. Like I said, this works fine except for the fact that the dialog does not show until the second time I click on the link. I added an alert box to the code, so I know the function is executed the first time the link is clicked
within this page that has been created, there is an AJAX tree folder which calls another page to be loaded into a DIV by AJAX again. Code:
[Code]...
I don't know why it doesn't work because the page has been loaded with the JS file, but as soon as the link is added afterwards it doesn't work. I take it this is because it doesn't know where to find the JS, but how can I overcome this?
I'm experiencing a weird problem when trying to do a $.ajax call. When I pass 5 variables, with either GET or POST, the script runs as I would like. However, when I use 6 or more variables, the script does not run. Does anyone know why this is?
Relevant code (stops1-5 are defined as JS variables earlier in my script, and the alerts are for testing)
So, the way it is now, it works fine (I get the first alert for each instance of .barcrawl-stop-id, and get an alert at the end with the returned data). However, when I add another variable to the data, like stop4: stop4, the script does not run (all I see is one alert with "running ajax function").
I am a newbie to using jquery and have been exploring it developing a new app. At the moment I have a number of AJAX calls to the server which I have been queueing in an array and using a single $.ajax call to handle all of them. However I know about the browser limitations of two calls per page (at the same time and want to implement this to speed up page updating). To test concurrent ajax requests I have setup various asp pages to with delays 1sec, 5sec, 10sec etc etc. and a test html file with the follwing javascript
I know about the same-origin policy and that one of the only ways to load data from a cross-domain is to load it as JSON. However, all I am trying to do is access data from a server on another port (which I believe the browser still treats as cross-domain). I need to do this because the server my application is on is a map server and the other server (Apache) is the only one that can handle php scripts. I have also tried out the plug-in from [URL] and while it works when I do $('#phpContent').load('http://www.google.com'); it doesn't work when I try $('#phpContent').load('http://localhost:80/mapScripts/getFiles.php'); I have also tried$.get('http://localhost:80/mapScripts/getFiles.php', function(data) { $('#phpContent').html(data); });
So here I am breaking my brain and do not know what else to attempt.
I am developing quite a complex user interface in jQuery that relies on an AJAX call to retrieve JSON.We have noticed that the code runs slow in IE7. IE8 and IE6 are acceptable. Firefox and Chrome really quick. I have traced the problem back to the AJAX call, which IE7 seems slow o process. What takes less than a second in the other browsers will take IE7 3 or 4. I have googled for an answer it seems there is some consensus that the native XHR in IE7 is slow, so it may not be a specific jQuery problem.Has anyone else experienced this? Does anyone have a solution? Please consider that this will be a public website, so the solution cannot involve altering settings on users' machines.
I have a jquery based system with ajax calls instead of page refreshes. Every time I return some ajax content, it replaces the content on the main div.
function execcmdcallback(data, textStatus, XMLHttpRequest) { $("#divmain").html(data); data = null; }
Each time this executes, the browser memory increases by about 600-900kb. Can anyone suggest a way of doing this where the old memory is freed so there is no significant increase in browser memory on each ajax call ?
I've studied this a bit, [URL]..., but I have to admit I don't quite understand it I see the same issue on IE8, FF and Chrome. FF comsumes less memory per ajax call and frees some memory seconds later, but still the total working set is increasing on each call by 300k in FF and 600 to 900 in chrome and IE
Basically, what I am trying to do is call several ajax requests using jQuery on the same page, i know that all browsers are capable of requesting multiple requests. However in Chrome and Safari my website works fine, but IE, Firefox and Opera all only call the first request then dont call, the second two. I dont know why though?
I'm trying to load a Javascript file which contains an array of data using .getScript(). It works fine on my server, but the request is never being made when I run it on my own computer, though the callback function is called. Is this an inherent limitation in JQuery/AJAX, or am I doing something stupid? code...
I want to be able to load content of multiple divs in just one click.And after the content has been loaded make a final call to a function on success.I'm using JQuery.when() wich works fine like this
