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  • Using jQuery to store basic text string in mySQL base?

    - by Kenny Bones
    Could someone point me in the right direction here? Basically, I've got this jQuery code snippet: $('.bggallery_images').click(function () { var newBG = "url('" + $(this).attr('src'); var fullpath = $(this).attr('src'); var filename = fullpath.replace('img/Bakgrunner/', ''); $('#wrapper').css('background-image', newBG); // Lagre til SQL $.ajax({ url: "save_to_db.php", // The url to your function to handle saving to the db data: filename, dataType: 'Text', type: 'POST', // Could also use GET if you prefer success: function (data) { // Just for testing purposes. alert('Background changed to: ' + data); } }); }); This is being run when I click a certain button. So it's actually within a click handler. If I understand this correctly, this snippet takes the source if the image I just clicked and strips it so I end up with only the filename. If I do an alert(filename), I get the filename only. So this is working ok. But then, it does an ajax call to a php file called "save_to_db.php" and sends data: filename. This is correct right? Then, it does a callback which does an alert + data. Does this seem correct so far? Cause my php file looks like this: <?php require("dbconnect2.php"); $uploadstring = $_POST['filename']; $sessionid = $_SESSION['id']; echo ($sessionid); mysql_query("UPDATE brukere SET brukerBakgrunn = '$uploadstring' WHERE brukerID=" .$_SESSION['id']); mysql_close(); ?> When I click the image, the jQuery snippet fires and I get the results of this php file as output for the alert box. I think that the variables somehow are empty. Because notice the echo($sessionid); which is a variable I've created just to test what the session ID is. And it returns nothing. What could be the issue here? Edit: I just tried to echo out the $uploadstring variable as well and it also returns nothing. It's like the jQuery snippet doesn't even pass the variable on to the php file?

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  • dom generation with ajax

    - by Aneesh
    what is the best practice for DOM generation ? passing the full html as response from server or pass necessary values and create dom accordingly from client side ? Please suggest..

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  • What is the best way to have a dynamic dropdownlist in PHP and POST selected value

    - by mouthpiec
    Hi, I am writing the following in PHP: i would like to have 2 dropdownlists, where the second one is populated from a mySQL dB according to the choice made on the first dropdown list. Then I would like to use the values of the selected values of the dropdownlist to call another PHP page in which I will generate a db query. Eg: List A: Car Manufactures (honda, nissan, etc) List B: Models (accord, civic, etc) Then I will have a submit button, to POST the values in another PHP file? (I have the basics of how to perform the above without having a dynamic list, but I tried this with AJAX, but I am having problems to pass the value of the second dropdownlist) Any tips of how I can perform the above?

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  • Browser loading strategy, <head>...<body>

    - by Bin Chen
    I am inspecting some interesting behaviors of browser, I don't know it's in standard or not. If I put everythin inside <head></head>, the browser will only begin to render the page after all the resouces in head is retrieved. So I am thinking that put as little as possible things into head is one of the important website optimization techniques, is it right? My question is: If I put script/css in body or other parts of the html, how can I know that script has been loaded successfully so that I will not be calling a undefined function?

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  • Creating a loading screen in HTML5

    - by espais
    I am having some issues finding a decent tutorial for generating a loading style screen with regards to HTML5. To be quite honest I'm not sure exactly where to begin... My project is essentially a simple HTML5 game, where I'll be loading in various sprite sheets and tilesets. They'll be reasonably small, but I'd like to show a little loading spinner instead of a blank screen while all the resources are loaded. Much appreciated if somebody could point me in the right direction, be it decent links or code samples to get me going...my Google-fu is lacking today! For clarification, I need to figure out how to load the resources themselves, as opposed to finding a spinner. For instance, how to calculate that X% has loaded.

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  • Arrays of Objects: For each element in array 1, does an object value exist as a value in any of the objects in array 2

    - by DevOtts
    I have two arrays which contain objects in each element of the array. var array1 = [{firstName: "John", lastName: "McDonald"}, {firstName: "Sandy", lastName: "Johnson"},....,] var array2 = [{userName: "Donald"}, {userName: "John"},....,] In psuedo-code, I want to do the following: for each element in array1, is array1[i].firstName == to any of the userName's in array2. In plain english I want to look at each firstname in array1 and see if it exists at all in array2 as the value associated with the userName property.

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  • ajax partial load from another page

    - by WalterJ89
    So what I want to do is load only a section of one webpage onto another page. So I want to grab the content of a page (stuff inbetween a div with a certain id) without the headers and footers. I know I've seen this before but its, stangly, a hard thing to find. Anyone kind enough to point me in the right direction? thank you

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  • GWT: stange import collision error in visualisation api

    - by parag_
    hi, I'm attempting to add two charts to a gwt page using the visualization api, but for some strange and inexplicable reason, eclipse claims that the following two imports are colliding - which makes no sense to me. In the methods where i am calling them, I have even tried using the fully qualified names, but that doesnt seem to help either. Any idea what may be going on ? import com.google.gwt.visualization.client.visualizations.Table.Options; import com.google.gwt.visualization.client.visualizations.LineChart.Options;

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  • prevent hover set by the CSS

    - by meo
    I try to prevent the Browser from using the :hover effect of the CSS. $("ul#mainFilter a").hover( function(o){ o.preventDefault(); ...do my stuff... }, function(o){ o.preventDefault(); ...do my stuff... }); I tired it with return false; to but it does not work. Does anyone know how to do this? due the answers i give you some more nfo: I have set the a and a:hover styles, in my CSS already. Now if JS is available on the clients machine, i want to overwrite the effect with a smoother one. (using jQuery color plugin) As mentioned by fudgey, a work around would be to set the style (using .css()) but i would have to overwrite every single effect specified in the CSS (see here: http://jsfiddle.net/raPeX/1/ ). I am looking for a generic solution.

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  • Nested Execution Flow Control

    - by chris
    I've read tens of answers related to callbacks, promises and other ways to control flow, but I can't still wrap my head around this task, obviously due to my lack of competence. I have a nested problem: In test_1() (and the other functions) I would like to ensure that the rows are added to the table according to the order in which the elements are in the object; I would like to execute either test_2 or test_3 (or both after each other) only after test_1 has finished completely. Actually the right sequence will only be known at runtime (there will be a switch with the possible sequences, like 1,2,3 or 1,3,2 or 1,2,1,3 or 1,3,3,2, etc...) Code: $(function () { // create table tbl = document.createElement('table'); tbl.className = "mainTbl"; $("body").append(tbl); }); function test_1() { $.each(obj, function () { var img = new Image(); img.onload = function () { // add row of data to table var row = tbl.insertRow(-1); var c1 = row.insertCell(0); c1.innerHTML = "loaded"; }; img.onerror = function () { // add row of data to table var row = tbl.insertRow(-1); var c1 = row.insertCell(0); c1.innerHTML = "not loaded"; }; img.src = this.url; }); } function test_2() { $.each(obj, function () { var img = new Image(); img.onload = function () { // add row of data to table var row = tbl.insertRow(-1); var c1 = row.insertCell(0); c1.innerHTML = "loaded"; }; img.onerror = function () { // add row of data to table var row = tbl.insertRow(-1); var c1 = row.insertCell(0); c1.innerHTML = "not loaded"; }; img.src = this.url; }); } function test_3() { $.each(obj, function () { var img = new Image(); img.onload = function () { // add row of data to table var row = tbl.insertRow(-1); var c1 = row.insertCell(0); c1.innerHTML = "loaded"; }; img.onerror = function () { // add row of data to table var row = tbl.insertRow(-1); var c1 = row.insertCell(0); c1.innerHTML = "not loaded"; }; img.src = this.url; }); } I know that calling the functions in sequence doesn't work as they don't wait for each other... I think promises are they way to go but I can't find the right combination and the documentation is way too complex for my skills. What's the best way to structure the code so that it's executed in the right order?

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  • Replace a list of emoticons with their images

    - by Damiano
    Hello, I have an array with: emoticons = { ':-)' : 'smile1.gif', ':)' : 'smile2.gif', ':D' : 'smile3.gif' } then i have a variabile with the text. var text = 'this is a simple test :)'; and a variable with the url of the website var url = "http://www.domain.com/"; How to write a function that replace the symbols with their images? The <img> tag result should be: <img src="http://www.domain.com/simple2.gif" /> (I have to concatenate the url varible to the name of the image). THank you very much!

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  • jQuery ajax form submit - how to ensure dynamically loaded form's action is used

    - by kenny99
    Hi, i'm having a problem with dynamically loaded forms - instead of using the action attribute of the newly loaded form, my jquery code is still using the action attribute of the first form loaded. I have the following code: //generic ajax form handler - calls next page load on success $('input.next:not(#eligibility)').live("click", function(){ $(".form_container form").validationEngine({ ajaxSubmit: true, ajaxSubmitFile: $(this).attr('action'), success : function() { var url = $('input.next').attr('rel'); ajaxFormStage(url); }, failure : function() { } }); }); But when the next form is loaded, the above code does not pick up the new action attribute. I have tried adding the above code to my callback on successful ajax load (shown below), but this doesn't make any difference. Can anyone help? Many thanks function ajaxFormStage(url) { var $data = $('#main_body #content'); $.validationEngine.closePrompt('body'); //close any validation messages $data.fadeOut('fast', function(){ $data.load(url, function(){ $data.animate({ opacity: 'show' }, 'fast'); '); //generic ajax form handler - calls next page load on success $('input.next:not(#eligibility)').live("click", function(){ $(".form_container form").validationEngine({ ajaxSubmit: true, ajaxSubmitFile: $(this).attr('action'), success : function() { var url = $('input.next').attr('rel'); ajaxFormStage(url); }, failure : function() { } }); }); }); });

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  • MVC JsonResult not working with chrome?

    - by Karsten Detmold
    i want jquery to take a JsonResult from my MVC controller but it does'nt receive any data! If I put the output into a textfile and enter its link its working so I think my jQuery is fine. Then I was testing with other browsers like chrome and I saw NOTHING. The requested page was just emtpy.. no errors. Also IE seems to have problems receiving my string.. only firefox displays the string but why? public JsonResult jsonLastRequests() { List<Request> requests = new List<Request>(); while (r.Read()) { requests.Add(new Models.Request() { ID = (int)r[0], SiteID = r[1].ToString(), Lat = r[2].ToString(), City = r[4].ToString(), CreationTime = (DateTime)r[5] }); } r.Close(); return Json(requests); } I found out that also if I want to return the JSON as string its not working! Its working with a string in all browsers now.. but jQuery is still not loading anything var url = "http://../jsonLastRequests"; var source = { datatype: "json", datafields: [ { name: 'ID' }, { name: 'SiteID' }, { name: 'Lat' }, { name: 'CreationTime' }, { name: 'City' }, ], id: 'id', url: url }; var dataAdapter = new $.jqx.dataAdapter(source, { downloadComplete: function (data, status, xhr) { }, loadComplete: function (data) { }, loadError: function (xhr, status, error) { } }); I fixed my problem by adding: access-control-allow-origin:*

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  • dynamic model is not loading fields

    - by Toby Justus
    I am using a dynamic model found on the forum of sencha. function modelFactory(name, fields) { alert(fields); return Ext.define(name, { extend: 'Ext.data.Model', fields: fields }); } I placed the alert(fields) to check what happens with the field because it was not working. I get this: [object Object],[object Object],[object Object] How can i change this into a correct way to use it in the fields? Is there a way to check if the model has been created? With Firebug or something? EDIT: i get this in firebug: [Object { name="ccuDesignation", type=null}, Object { name="wanNumber", type=null}, Object { name="carrierName", type=null}, Object { name="dataPackageName", type=null}, Object { name="simIccid", type=null}, Object { name="expiryTime", type=null}, Object { name="bytesRx", type=null}, Object { name="bytesTx", type=null}]

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  • Using new Image().src for click tracking

    - by razass
    I am attempting to figure out why this click tracker isn't working. The code was written by another developer so I am not entirely sure if this ever did work. function trackSponsor(o, p) { (new Image()).src = PATH_BASE + 'click/' + p + '/' + o + "?_cache=" + (+(new Date())); return false; } From what I can gather is that when this function is called it 'creates a new image' to fire a php script asynchronously. According to Firebug, the request is made however it is 'aborted' ~30ms in. The odd thing is that it will 'sometimes' work as in 1 in every 10+ regardless of the browser. I would much rather fix this so that it works instead of re-writing it as an ajax request. Any help is appreciated. Thanks in advance.

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  • Are google chrome extension "content" scripts sandboxed?

    - by jabapyth
    I was under the impression that the content_scripts were executed right on the page, but it now seems as though there's some sandboxing going on. I'm working on an extension to log all XHR traffic of a site (for debugging and other development purposes), and in the console, the following sniff code works: var o = window.XMLHttpRequest.prototype.open; window.XMLHttpRequest.prototype.open = function(){ console.log(arguments, 'open'); return o.apply(this, arguments); }; console.log('myopen'); console.log(window, window.XMLHttpRequest, window.XMLHttpRequest.prototype, o, window.XMLHttpRequest.prototype.open); This logs a message everytime an XHR is sent. When I put this in an extension, however, the real prototype doesn't get modified. Apparently the window.XMLHttpRequest.prototype that my script is seeing differs from that of the actual page. Is there some way around this? Also, is this sandboxing behavior documented anywhere? I looked around, but couldn't find anything.

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  • Can anyone explain this pience of snippet?

    - by karthick6891
    Can anyone explain the following code,forget the sin and cosine parts..Is it trying to build a space for the object objectsInScene = new Array(); for (var i=space; i<180; i+=space) { for (var angle=0; angle<360; angle+=space) { var object = {}; var x = Math.sin(radian*i)*radius; object.x = Math.cos(angle*radian)*x; object.y = Math.cos(radian*i)*radius; object.z = Math.sin(angle*radian)*x; objectsInScene.push(object); } }

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  • Detecting the onload event of a window opened with window.open

    - by Chris T
    window.popup = window.open($(this).attr('href'), 'Ad', 'left=20,top=20,width=500,height=500,toolbar=1,resizable=0'); $(window.popup).onload = function() { alert("Popup has loaded a page"); }; This doesn't work in any browser I've tried it with (IE, Firefox, Chrome). How can I detect when a page is loaded in the window (like an iframe onload)?

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  • Wait until image loads before performing function

    - by Steven
    I'm trying to create a simple portfolio page. I have a list of thumbs and an image. When you click on a thumb, the image will change. When a thumbnail is clicked, I'd like to have the image fade out, wait until the image is loaded, then fade back in. The problem I have right now is that some of the images are pretty big, so it fades out, then fades back in immediately, sometimes while the image is still loading. I'd like to avoid using setTimeout, since sometimes an image will load faster or slower than the time I set. Here's my code: $(function() { $('img#image').attr("src", $('ul#thumbs li:first img').attr("src")); $('ul#thumbs li img').click(function() { $('img#image').fadeOut(700); var src = $(this).attr("src"); $('img#image').attr("src", src); $('img#image').fadeIn(700); }); }); <img id="image" src="" alt="" /> <ul id="thumbs"> <li><img src="/images/thumb1.png" /></li> <li><img src="/images/thumb2.png" /></li> <li><img src="/images/thumb3.png" /></li> </ul>

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  • Is there a better way to serially submit multiple AJAX requests?

    - by friedo
    I have a page with multiple forms that I submit via Ajax POSTs serially. At first, I tried using synchronous XHR requests, but this causes the browser to lock up for the duration of the request, and breaks my DOM-manipulation effects, which is unacceptable. So the pattern I ended up using is basically this: var fcount = 0; // incremented for each form to be submitted function submit_form( num ) { var fdata = { ... }; // data from form # num $.ajax( { async: true, url: '/index.cgi', data: fdata, type: 'POST', success: function() { if ( num < fcount ) { submit_form( ++num ); } } } ); } $( '#submit_form_btn' ).click( function() { submit_form( 1 ) } ); The recursion strikes me as a bit of an ugly solution to what is essentially an iterative problem. Is there a cleaner or more elegant way that this could be handled?

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  • jquery load php file - result is not complete

    - by Mark Nolan
    I'm trying to load or better reload a DIV with content from an included php file. so the file is included in the webadmin.php from the location webadmin/pages.php. Then i alter some data in the DB through serializing. Now I would like to reload the pages.php from the callback of the serialize POST with load();. This all works fine up until the moment the data is supposed to be displayed in the div - i believe its because the php file is loaded from a different location, so the include paths for the DB Connection etc are probably wrong... Should I really write an extra PHP File for jquery or is there a way to tell jquery where to load it from? Its the first time I'm doing this - so bear with me for a moment on this one... Thanks! I guess it wont be much use, but heres the load code: $("#right").load("webadmin/pages.php");

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