Ajax Post Error Function
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here for a quick overview of the site Help Center Detailed answers to any questions you might have Meta ajax error function always called Discuss the workings and policies of this site About Us Learn jquery ajax post error function more about Stack Overflow the company Business Learn more about hiring developers or posting ads with us ajax error function not firing Stack Overflow Questions Jobs Documentation Tags Users Badges Ask Question x Dismiss Join the Stack Overflow Community Stack Overflow is a community of 4.7 million programmers, just like ajax error function parameters you, helping each other. Join them; it only takes a minute: Sign up Jquery Ajax post success/error function up vote 5 down vote favorite I have a post function that is not being caught on error. Here's the value being returned from postride.php. if ($group_id==0) { echo 'No group selected'; return false; exit; } Here's the jquery
Ajax Error Function Message
code: $(document).ready(function(){ $('#postride').submit(function(event) { event.preventDefault(); dataString = $("#postride").serialize(); $.ajax({ type: "post", url: "postride.php", data:dataString, error: function(returnval) { $(".message").text(returnval + " failure"); $(".message").fadeIn("slow"); $(".message").delay(2000).fadeOut(1000); }, success: function (returnval) { $(".message").text(returnval + " success"); $(".message").fadeIn("slow"); $(".message").delay(2000).fadeOut(1000); //setTimeout( function() { top.location.href="view.php" }, 3000 ); } }) return false; }); }); The post function returns false, but the error function does not fire, only the success function. It will post "No group selected success". Thanks for any help! jquery share|improve this question asked Sep 16 '11 at 2:43 Matt 40124 add a comment| 3 Answers 3 active oldest votes up vote 17 down vote accepted The error option in jQuery ajax methods is for errors caused by a bad connection, timeout, invalid url, things of that nature. It's not the kind of error that you're thinking. What most people do is something like this... php if ($group_id == 0) { echo json_encode(array( 'status' => 'error', 'message'=> 'error message' )); } else { echo json_encode(array( 'status' => 'success', 'message'=> 'success message' )); }
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Ajax Error Function Example
Stack Overflow the company Business Learn more about hiring developers or posting ads with jquery ajax error function arguments us Stack Overflow Questions Jobs Documentation Tags Users Badges Ask Question x Dismiss Join the Stack Overflow Community Stack Overflow is ajax post error handling a community of 4.7 million programmers, just like you, helping each other. Join them; it only takes a minute: Sign up jQuery Ajax error handling, show custom exception messages up vote 522 down vote favorite http://stackoverflow.com/questions/7439606/jquery-ajax-post-success-error-function 189 Is there some way I can show custom exception messages as an alert in my jQuery AJAX error message? For example, if I want to throw an exception on the server side via Struts by throw new ApplicationException("User name already exists");, I want to catch this message ('user name already exists') in the jQuery AJAX error message. jQuery("#save").click(function () { if (jQuery('#form').jVal()) { jQuery.ajax({ type: "POST", url: "saveuser.do", dataType: "html", http://stackoverflow.com/questions/377644/jquery-ajax-error-handling-show-custom-exception-messages data: "userId=" + encodeURIComponent(trim(document.forms[0].userId.value)), success: function (response) { jQuery("#usergrid").trigger("reloadGrid"); clear(); alert("Details saved successfully!!!"); }, error: function (xhr, ajaxOptions, thrownError) { alert(xhr.status); alert(thrownError); } }); } }); On the second alert, where I alert the thrown error, I am getting undefined and the status code is 500. I am not sure where I am going wrong. What can I do to fix this problem? jquery ajax struts custom-exceptions share|improve this question edited Sep 9 '15 at 5:43 Kasun Randika 2,14911635 asked Dec 18 '08 at 12:06 add a comment| 16 Answers 16 active oldest votes up vote 258 down vote Make sure you're setting Response.StatusCode to something other than 200. Write your exception's message using Response.Write, then use... xhr.responseText ..in your javascript. share|improve this answer answered Jan 16 '09 at 14:25 Sprintstar 4,74132544 6 This is still the correct way of doing this after 2 years and a half... :) I went a little further and actually return my own error JSON object that can handle single or multiple errors, quite good for server-side form validation. –AlexCode Jul 19 '11 at 19:28 1 Can you provide the code? –Wilson Jun 19 '14 at 11:46 @Wilson It was as shown in the other high-rated answers here. –Sprintst
Web Dev @ Microsoft SEO By WooRank Books Courses Screencasts Newsletters Versioning Shop Forums Advertise Contribute Contact Us Our Story 995kSubscribers 132kFollowers 80kFollowers https://www.sitepoint.com/use-jquerys-ajax-function/ JavaScript Article How to Use jQuery's $.ajax() Function By Aurelio De Rosa August 26, 2015 Without any doubt Ajax has taken web development by storm and it's one of the most successful paradigms ever. http://www.bennadel.com/blog/1392-handling-ajax-errors-with-jquery.htm In my article An Introduction to jQuery’s Shorthand Ajax Methods, I discussed some of jQuery's most used Ajax shorthand methods: $.get(), $.post(), and $.load(). They are convenient methods for making Ajax requests in error function a few lines of code. Sometimes, we need more control over the Ajax calls we want to make. For example, we want to specify what should happen in case an Ajax call fails or we need to perform an Ajax request but its result is only needed if retrieved within a certain amount of time. In such situations, we can rely on another function provided by jQuery, called ajax error function $.ajax(), that is the topic of this tutorial. More from this author How to Implement Internationalization (i18n) in JavaScriptAn Introduction to jQuery's Deferred Objects The $.ajax() Function The jQuery $.ajax() function is used to perform an asynchronous HTTP request. It was added to the library a long time ago, existing since version 1.0. The $.ajax() function is what every function discussed in the previously mentioned article calls behind the scene using a preset configuration. The signatures of this function are shown below: $.ajax(url[, options]) $.ajax([options]) The url parameter is a string containing the URL you want to reach with the Ajax call, while options is an object literal containing the configuration for the Ajax request. In its first form, this function performs an Ajax request using the url parameter and the options specified in options. In the second form, the URL is specified in the options parameter, or can be omitted in which case the request is made to the current page. The list of the options accepted by this function, described in the next section, is very long. So, I'll keep their description short. In case you want to study in-depth their meaning, you can refer to the offic
Gary Gilbert (@garyrgilbert) Handling AJAX Errors With jQuery By Ben Nadel on November 7, 2008 Tags: AJAX, Javascript / DHTML jQuery is the most awesome javascript library that exists. Every day, I'm finding new ways to leverage it and shorter, more efficient ways to get things done. But, while most things are easy to do, the solution is not always immediately evident. One of the things that took me a good while to figure out was how to gracefully handle AJAX errors. Anyone who's worked with JSON requests and other AJAX calls knows that sometimes, that stuff just fails silently; you know something went wrong, but no errors were thrown. If it wasn't for FireBug showing us 404 or 500 style errors, there'd be no evidence at all of these fails.I've come up with a way to centralize my AJAX calls in a way that seemlessly handles all errors that occur either from the request connection or the JSON processing (ie. poorly formed JSON that cannot be converted back into Javascript data types). I'm not sure if this is the best of all ways, but I'm liking it. The whole concept rests on the fact that all of my system API (AJAX) calls return a uniform response with the following structure:{SUCCESS: true,DATA: "",ERRORS: []}The Success property flags the request as having executed properly and returned the expected data. The Data property can be anything it needs to be. The Errors property is an array of any errors that need to be reported. It is only by requiring that all AJAX requests expect this that I can easily handle all errors.In production, the following code would probably be part of some other object or integrated into the Javascript framework in a different way, but for this demo, I'm going to break out my AJAX request pipeline into its own class:// Create an object to handle our AJAX.function AJAX(){var objSelf = this;// This struct will cache the current XmlHTTP requests// so that we can reference them if a call fails.this.CurrentRequests = {};}// This handles the JSON request. This checks