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  • fetching a url using $.getJSON and parsing it correctly

    - by sofia
    This is probably really stupid but i can't find the problem with my code. It fetches a url that returns json and the function is then supposed to return a string: function getit() { var ws_url = 'example.com/test.js'; var user = false; $.getJSON(ws_url, function(data) { alert('user '+data.user);//shows john user = data.user || false; } ); return user;//should return john but returns false } test.js will have something like this: {"id":"12","username":"ses","user":"john","error":""} or like this: {"error":"123"} I also tried if(data.user){}else{} but it didn't work either.. So what am i missing? Thanks :)

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  • Managing lots of callback recursion in Nodejs

    - by Maciek
    In Nodejs, there are virtually no blocking I/O operations. This means that almost all nodejs IO code involves many callbacks. This applies to reading and writing to/from databases, files, processes, etc. A typical example of this is the following: var useFile = function(filename,callback){ posix.stat(filename).addCallback(function (stats) { posix.open(filename, process.O_RDONLY, 0666).addCallback(function (fd) { posix.read(fd, stats.size, 0).addCallback(function(contents){ callback(contents); }); }); }); }; ... useFile("test.data",function(data){ // use data.. }); I am anticipating writing code that will make many IO operations, so I expect to be writing many callbacks. I'm quite comfortable with using callbacks, but I'm worried about all the recursion. Am I in danger of running into too much recursion and blowing through a stack somewhere? If I make thousands of individual writes to my key-value store with thousands of callbacks, will my program eventually crash? Am I misunderstanding or underestimating the impact? If not, is there a way to get around this while still using Nodejs' callback coding style?

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  • Is there anyway I can fix a webview?

    - by Legend
    I am trying to load a webpage into a sample webview that I created: public class HelloWebview extends Activity { /** Called when the activity is first created. */ @Override public void onCreate(Bundle savedInstanceState) { super.onCreate(savedInstanceState); setContentView(R.layout.main); WebView webview; webview = (WebView) findViewById(R.id.webview); webview.getSettings().setDefaultZoom(ZoomDensity.FAR); webview.setHorizontalScrollBarEnabled(false); webview.setVerticalScrollBarEnabled(false); webview.getSettings().setJavaScriptEnabled(true); webview.loadUrl("http://10.0.2.2/index.html"); } } Initially, I had a problem with the scrollbars so I added the two lines to disable them. Now, I am still able to pan around the webpage though the scroll bars are not visible. How can I fix the view so that I am not able to pan (or scroll) the webpage? By panning, I mean moving around the webpage with an onTouch event.

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  • Django-ckeditor inline error

    - by ad3w
    I'm using FeinCMS (https://github.com/feincms/feincms/) and django-ckeditor with file upload support (https://github.com/shaunsephton/django-ckeditor). I create a FeinCMS content type for RichTextField: class RichContent(models.Model): text = RichTextField(_('text')) class Meta: abstract = True verbose_name = _('Rich Text') verbose_name_plural =_('Rich Text') def render(self, **kwargs): context_instance = kwargs.get('context_instance') return render_to_string('content/page/rich_content.html', { 'page': self, }, context_instance=context_instance) But in Django admin, when i select 'Rich Text' and press 'Go', get this error in firebug console: uncaught exception: [CKEDITOR.editor] The instance "id_richcontent_set-__prefix__-text" already exists. And textarea in ckeditor do not editable.

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  • jQuery parent of a parent

    - by Bloudermilk
    Hello, I am currently trying to find the parent of a parent of an element. I have a link being clicked that is in a <td>, and I'd like to get the <tr> object. Why wont "$(this).parent().parent()" work? What will? Thanks, Brendan Edit: It appears an error in my syntax was throwing the whole thing off. "$(this).parent().parent()" does in fact work, but I wound up going with $(this).closest('tr')" because it seems like the most efficient solution.

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  • How to close unclosed HTMl Tags?

    - by Starx
    Whenever we are fetching some user inputed content with some editing from the database or similar sources, we might retrieve the portion which only contains the opening tag but no closing. This can hamper the website's current layout. Is there a clientside or server way of fixing this?

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  • jQuery ajax form submit - multiple post/get requests caused when validation fails

    - by kenny99
    Hi, I have a problem where if a form submission (set up to submit via AJAX) fails validation, the next time the form is submitted, it doubles the number of post requests - which is definitely not what I want to happen. I'm using the jQuery ValidationEngine plugin to submit forms and bind validation messages to my fields. This is my code below. I think my problem may lie in the fact that I'm retrieving the form action attribute via $('.form_container form').attr('action') - I had to do it this way as using $(this).attr was picking up the very first loaded form's action attr - however, when i was loading new forms into the page it wouldn't pick up the new form's action correctly, until i removed the $(this) selector and referenced it using the class. Can anyone see what I might be doing wrong here? (Note I have 2 similar form handlers which are loaded on domready, that could also be an issue) $('input#eligibility').live("click", function(){ $(".form_container form").validationEngine({ ajaxSubmit: true, ajaxSubmitFile: $('.form_container form').attr('action'), success : function() { var url = $('input.next').attr('rel'); ajaxFormStage(url); }, failure : function() { //unique stuff for this form } }); }); //generic form handler - all form submissions not flagged with the #eligibility id $('input.next:not(#eligibility)').live("click", function(){ $(".form_container form").validationEngine({ ajaxSubmit: true, ajaxSubmitFile: $('.form_container form').attr('action'), success : function() { var url = $('input.next').attr('rel'); ajaxFormStage(url); }, failure : function() { } }); });

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  • Google Closure minifier online?

    - by Geuis
    Has anyone setup an online copy/paste utility for Google's Closure minifier? I'm working on a project and I want to minify part of the code manually without having to setup the entire project on my own.

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  • Cross Domain Scripting Issues & JSONP

    - by DaveDev
    Our Client requires that we supply Widgits for their site. They want to link to us to get Html & the jQuery required to manipulate the Html and do asynchronous requests. I understand that there are cross-domain security limitations that would prevent this from being a possibility, but that some of those limitations are aleviated by using JSONP as the data transfer format. I'm finding it difficult in finding an explanation of what's possible in the context of what I'm trying to achieve. Could somebody please fill me in?

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  • Custom Icon for Marker Clusterer

    - by Nyxynyx
    I am using Marker Clusterer library for Google Maps API V3. Now that I have the clusterer working, I want to change the default icon to a custom one. Prorblem: When I try to set the style property of the marker clusterer, the default icon still appears. Where did I go wrong? JS Code // Marker Clusterer var styles = {styles: [{ height: 53, url: "http://localhost/mywebsite/images/template/markers/cluster.png", width: 53 }, { height: 56, url: "http://google-maps-utility-library-v3.googlecode.com/svn/trunk/markerclusterer/images/m2.png", width: 56 }, { height: 66, url: "http://google-maps-utility-library-v3.googlecode.com/svn/trunk/markerclusterer/images/m3.png", width: 66 }, { height: 78, url: "http://google-maps-utility-library-v3.googlecode.com/svn/trunk/markerclusterer/images/m4.png", width: 78 }, { height: 90, url: "http://google-maps-utility-library-v3.googlecode.com/svn/trunk/markerclusterer/images/m5.png", width: 90 }]}; var mcOptions = {gridSize: 50, maxZoom: 15, styles: styles[styles]}; mc = new MarkerClusterer(map, [], mcOptions);

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  • Issues after customizing the Superfish drop-down menu

    - by Pieter
    I've been tinkering around with the excellent Superfish drop-down menu to fit my needs. Here's the result. Still, there are two oddities I need to fix. Since I changed the font family and font size used for the items in the menu bar, the drop-down menus are aligned incorrectly a few pixels lower than where they should be. Secondly, when I hover over a menu item that has a submenu, an arrow to the right is displayed but it's not as visible as it should be due to the light background color. Can I change this quickly without making a new arrow image?

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  • How to decode JSON (varying number of elements, varying keys) using Jquery

    - by Obay
    My JSON looks like this: { "[email protected]":"Person1", "[email protected]":"Person65", "[email protected]":"Person24" } It's returned in various number of elements, and various keys. How do I traverse the data if my code is like this: $.post("includes/ajax.php", { group_id : $('#group').val() }, function(data) { //how do i traverse data here? }, "json"); Any help will be appreciated :) Thanks!

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  • Regarding Google Safe Browsing API

    - by Steve
    Does anyone know how to use the Google safe browsing API. I downloaded the entire the malware and phish update from the google safe browsing using the API key and tried comparing the hash of the suspicious site (md5_file method in php) but it did not work. I also tried comparing the hash of the suspicious site's url (md5 method in php). Am I doing something wrong here?

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  • Excanvas does not work in IE8 at all

    - by Matt Null
    I simply cannot get excanvas to work at all. I have tried everything I can think of. I am even uploading the examples that come with excanvas to my website and testing them and they do not even work. I don't know if it has something to do with my server or what, but I haven't seen a working excanvas image yet. for instance... I this example comes with the excanvas package and it does not work for me... does anyone know what this could possibly be? thanks http://www.javascriptkids.com/tools/excanvas/examples/example1.html

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  • How to create a jpeg using set of div with backgrounds - PHP/jQuery

    - by Dasun
    The final output of the image looks like this below. If you look into html parts, It's create using different divs as below. All the div are placed one on one using CSS and making the position to absolute. <div id="tproduct" class="timage" style="z-index: 30; background-image: url('main-mask.png') ;"></div> <div id="tdesign1" class="timage" style="z-index: 20; background-image: url('design1.png');"></div> <div id="tdesign2" class="timage" style="z-index: 20; background-image: url('design2.png');"></div> <div id="tmaincolor" class="timage" style="background-color:blue;"></div> <div id="tembellishment" class="timage" style="z-index: 10; background-image: url('flower.png');"></div> If we look at separately it will look like this below. etc My question is how can I create a single image using above set of divs and images? I can use PHP or jQuery? I only want the steps or guidance how it should be done. Thanks

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  • jQuery Autocomplete with _renderItem and catagories

    - by LillyPop
    As a newb to jQuery im wondering if its possible to have both jQuery _renderItem (for custom list item HTML/CSS) AND the categories working together in harmony? Ive got my _renderItem working great but I have no idea how to incorporate categories into the mix. My code so far $(document).ready(function () { $(':input[data-autocomplete]').each(function () { $(':input[data-autocomplete]').autocomplete({ source: $(this).attr("data-autocomplete") }).data("autocomplete")._renderItem = function (ul, item) { var MyHtml = "<a>" + "<div class='ac' >" + "<div class='ac_img_wrap' >" + '<img src="../../uploads/' + item.imageUrl + '.jpg"' + 'width="40" height="40" />' + "</div>" + "<div class='ac_mid' >" + "<div class='ac_name' >" + item.value + "</div>" + "<div class='ac_info' >" + item.info + "</div>" + "</div>" + "</div>" + "</a>"; return $("<li></li>").data("item.autocomplete", item).append(MyHtml).appendTo(ul); }; }); }); The jQuery documentation for the autocomplete gives the following code example : $.widget("custom.catcomplete", $.ui.autocomplete, { _renderMenu: function (ul, items) { var self = this, currentCategory = ""; $.each(items, function (index, item) { if (item.category != currentCategory) { ul.append("<li class='ui-autocomplete-category'>" + item.category + "</li>"); currentCategory = item.category; } self._renderItem(ul, item); }); } }); Id like to get my custom HTML (_renderItem) and categories working together, can anyone help me to merge these two together or point me in the right direction. Thanks

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  • How to prevent form submission for a form using onchange to submit the form when certain values are

    - by Terrence Brannon
    I have a form I have built: <form class="myform" action="cgi.pl"> <select name="export" onchange='this.form.submit()'> <option value="" selected="selected">Choose an export format</option> <option value="html">HTML</option> <option value="csv">CSV</option> </select> </form> Now, this form works fine if I pull down and select "HTML" or "CSV". But if I hit the back button and select "Choose an export format", the form is submitted, even though I dont want it to be. Is there any way to prevent form submission for that option?

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  • TSQL - How to join 1..* from multiple tables in one resultset?

    - by ElHaix
    A location table record has two address id's - mailing and business addressID that refer to an address table. Thus, the address table will contain up to two records for a given addressID. Given a location ID, I need an sproc to return all tbl_Location fields, and all tbl_Address fields in one resultset: LocationID INT, ClientID INT, LocationName NVARCHAR(50), LocationDescription NVARCHAR(50), MailingAddressID INT, BillingAddressID INT, MAddress1 NVARCHAR(255), MAddress2 NVARCHAR(255), MCity NVARCHAR(50), MState NVARCHAR(50), MZip NVARCHAR(10), MCountry CHAR(3), BAddress1 NVARCHAR(255), BAddress2 NVARCHAR(255), BCity NVARCHAR(50), BState NVARCHAR(50), BZip NVARCHAR(10), BCountry CHAR(3) I've started by creating a temp table with the required fields, but am a bit stuck on how to accomplish this. I could do sub-selects for each of the required address fields, but seems a bit messy. I've already got a table-valued-function that accepts an address ID, and returns all fields for that ID, but not sure how to integrate it into my required result. Off hand, it looks like 3 selects to create this table - 1: Location, 2: Mailing address, 3: Billing address. What I'd like to do is just create a view and use that. Any assistance would be helpful. Thanks.

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  • Retrieving of coordinates from google maps and search

    - by cheesebunz
    I know there is a way to retrieve the coordinates by clicking on the map, using specifically document.getElementById("lonTb").value=point.x; document.getElementById("latTb").value=point.y; Firstly, i have a html file namely MapToolKit.html, a mapGPS.js and a mapSearch.js. how do i input the coordinates returns into the js? I just need to be able to click the map for coordinates, not neccessary the search returns. Here's the file which i uploaded. http://www.mediafire.com/?0minqxgwzmx

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  • Openlayers - LayerRedraw() / Feature rotation / Linestring coords

    - by Ozaki
    TLDR: I have an Openlayers map with a layer called 'track' I want to remove track and add track back in. Or figure out how to plot a triangle based off one set of coords & a heading(see below). I have an image 'imageFeature' on a layer that rotates on load to the direction being set. I want it to update this rotation that is set in 'styleMap' on a layer called 'tracking'. I set the var 'stylemap' to apply the external image & rotation. The 'imageFeature' is added to the layer at the coords specified. 'imageFeature' is removed. 'imageFeature' is added again in its new location. Rotation is not applied.. As the 'styleMap' applies to the layer I think that I have to remove the layer and add it again rather than just the 'imageFeature' Layer: var tracking = new OpenLayers.Layer.GML("Tracking", "coordinates.json", { format: OpenLayers.Format.GeoJSON, styleMap: styleMap }); styleMap: var styleMap = new OpenLayers.StyleMap({ fillOpacity: 1, pointRadius: 10, rotation: heading, }); Now wrapped in a timed function the imageFeature: map.layers[3].addFeatures(new OpenLayers.Feature.Vector( new OpenLayers.Geometry.Point(longitude, latitude), {rotation: heading, type: parseInt(Math.random() * 3)} )); Type refers to a lookup of 1 of 3 images.: styleMap.addUniqueValueRules("default", "type", lookup); var lookup = { 0: {externalGraphic: "Image1.png", rotation: heading}, 1: {externalGraphic: "Image2.png", rotation: heading}, 2: {externalGraphic: "Image3.png", rotation: heading} } I have tried the 'redraw()' function: but it returns "tracking is undefined" or "map.layers[2]" is undefined. tracking.redraw(true); map.layers[2].redraw(true); Heading is a variable: from a JSON feed. var heading = 13.542; But so far can't get anything to work it will only rotate the image onload. The image will move in coordinates as it should though. So what am I doing wrong with the redraw function or how can I get this image to rotate live? Thanks in advance -Ozaki Add: I managed to get map.layers[2].redraw(true); to sucessfully redraw layer 2. But it still does not update the rotation. I am thinking because the stylemap is updating. But it runs through the style map every n sec, but no updates to rotation and the variable for heading is updating correctly if i put a watch on it in firebug. If I were to draw a triangle with an array of points & linestring. How would I go about facing the triangle towards the heading. I have the Lon/lat of one point and the heading. var points = new Array( new OpenLayers.Geometry.Point(lon1, lat1), new OpenLayers.Geometry.Point(lon2, lat2), new OpenLayers.Geometry.Point(lon3, lat3) ); var line = new OpenLayers.Geometry.LineString(points); Looking for any way to solve this problem Image or Line anyone know how to do either added a 100rep bounty I am really stuck with this.

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  • PHP and ajax no update taking place

    - by sea_1987
    Hi There, I have an an ajax request that looks like this, $('input.fakecheck').click(function(){ alert("deleteing...."); $.ajax({ url:"/search", type:"POST", data: $(this).attr('name')+"="+$(this).attr('value')+"&remove=Remove", success:function() { alert(data); } }) }) This calls a php function which looks like this, private function _remove_from_short_list($cv_array) { if (is_array($cv_array)) { $short_list = $this->session->userdata('short_list'); $new_list = array_diff_key($short_list, $cv_array); $this->session->set_userdata('short_list', $new_list); } } Essentiallty what happens is that on my page I have a list which is essentially a list of id's taken out of the session, the user can then by click and input(this will change) delete the id from their session. However once the deletion has taken place I want to be able to refresh the list to show that it has taken place, currently nothing happens, until I manually refresh.

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