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A really smart rails helper needed

- by Stefan Liebenberg

In my rails application I have a helper function: def render_page( permalink ) page = Page.find_by_permalink( permalink ) content_tag( :h3, page.title ) + inline_render( page.body ) end If I called the page "home" with: <%= render_page :home %> and "home" page's body was: <h1>Home<h1/> bla bla <%= render_page :about %> <%= render_page :contact %> I would get "home" page, with "about" and "contact", it's nice and simple... right up to where someone goes and changes the "home" page's content to: <h1>Home<h1/> bla bla <%= render_page :home %> <%= render_page :about %> <%= render_page :contact %> which will result in a infinite loop ( a segment fault on webrick )... How would I change the helper function to something that won't fall into this trap? My first attempt was along the lines of: @@list = [] def render_page( permalink ) unless list.include?(permalink) @@list += [ permalink ] page = Page.find_by_permalink content_tag( :h3, page.title ) + inline_render( page.body ) @@list -= [ permalink ] else content_tag :b, "this page is already being rendered" end end which worked on my development environment, but bombed out in production... any suggestions? Thank You Stefan

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backbone.js Model.get() returns undefined, scope using coffeescript + coffee toaster?

- by benipsen

I'm writing an app using coffeescript with coffee toaster (an awesome NPM module for stitching) that builds my app.js file. Lots of my application classes and templates require info about the current user so I have an instance of class User (extends Backbone.Model) stored as a property of my main Application class (extends Backbone.Router). As part of the initialization routine I grab the user from the server (which takes care of authentication, roles, account switching etc.). Here's that coffeescript: @user = new models.User @user.fetch() console.log(@user) console.log(@user.get('email')) The first logging statement outputs the correct Backbone.Model attributes object in the console just as it should: User _changing: false _escapedAttributes: Object _pending: Object _previousAttributes: Object _silent: Object attributes: Object account: Object created_on: "1983-12-13 00:00:00" email: "[email protected]" icon: "0" id: "1" last_login: "2012-06-07 02:31:38" name: "Ben Ipsen" roles: Object __proto__: Object changed: Object cid: "c0" id: "1" __proto__: ctor app.js:228 However, the second returns undefined despite the model attributes clearly being there in the console when logged. And just to make things even more interesting, typing "window.app.user.get('email')" into the console manually returns the expected value of "[email protected]"... ? Just for reference, here's how the initialize method compiles into my app.js file: Application.prototype.initialize = function() { var isMobile; isMobile = navigator.userAgent.match(/(iPhone|iPod|iPad|Android|BlackBerry)/); this.helpers = new views.DOMHelpers().initialize().setup_viewport(isMobile); this.user = new models.User(); this.user.fetch(); console.log(this.user); console.log(this.user.get('email')); return this; }; I initialize the Application controller in my static HTML like so: jQuery(document).ready(function(){ window.app = new controllers.Application(); }); Suggestions please and thank you!

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C# Regex - Match and replace, Auto Increment

- by Marc Still

I have been toiling with a problem and any help would be appreciated. Problem: I have a paragraph and I want to replace a variable which appears several times (Variable = @Variable). This is the easy part, but the portion which I am having difficulty is trying to replace the variable with different values. I need for each occurrence to have a different value. For instance, I have a function that does a calculation for each variable. What I have thus far is below: private string SetVariables(string input, string pattern){ Regex rx = new Regex(pattern); MatchCollection matches = rx.Matches(input); int i = 1; if(matches.Count > 0) { foreach(Match match in matches) { rx.Replace(match.ToString(), getReplacementNumber(i)); i++ } } I am able to replace each variable that I need to with the number returned from getReplacementNumber(i) function, but how to I put it back into my original input with the replaced values, in the same order found in the match collection? Thanks in advance! Marcus

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Javascript Rich Display Component/Methodology

- by Laramie

quick back story-- I am working on ASP.Net based template editor that lets authors create text templates using Javascript inserted placeholder tags that will be filled in with dynamic text when the templates are used to display the final results. For example the author might create a template like The word [%12#add] was generated dynamically. The application would eventually replace the tag with a dynamic word down the road (though it's not specifically relevant to this post) The word foo was generated dynmamically. Depending on the circumstances, the template may be created in a text input, textarea or a modified version of the Ajax Control Toolkit HTML Editor. There might be 40 or more of these editable elements on the page, so using lots of stripped down or modified HTML editors would probably bog the page down too much. The problem is that the tags such as [%12#add] are displayed inline with the user text and the result is confusing and aesthetically gross. The goal is parse the contens of the source element and when a tags such as [%12#add] are encountered, display something prettier and less cryptic to the user such as a stylable element or image wherever tags such as [%12#add] occur. The application still needs the template text with the tags on postback. So the user might see The word tag placeholder was generated dynamically. but the original template would still be the value of the text input box The word [%12#add] was generated dynamically. It seems HTML editors like the ACT version and FckEditor accomplish this by rendering their output in an IFrame, but rather than kill myself trying to roll a lighter specialized version myself, I thought I'd ask if anyone knows of an existing free component or approach that has already tackled this. With good reason, I don't think S.O. allows HTML formatting, but the bold "tag placeholder" above would ideally be something like tag placeholder.

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Can you have multiple clipping regions in an HTML Canvas?

- by emh

I have code that loads a bunch of images into hidden img elements and then a Javascript loop which places each image onto the canvas. However, I want to clip each image so that it is a circle when placed on the canvas. My loop looks like this: $$('#avatars img').each(function(avatar) { var canvas = $('canvas'); var context = canvas.getContext('2d'); var x = Math.floor(Math.random() * canvas.width); var y = Math.floor(Math.random() * canvas.height); context.beginPath(); context.arc(x+24, y+24, 20, 0, Math.PI * 2, 1); context.clip(); context.strokeStyle = "black"; context.drawImage(document.getElementById(avatar.id), x, y); context.stroke(); }); Problem is, only the first image is drawn (or is visible). If I remove the clipping logic: $$('#avatars img').each(function(avatar) { var canvas = $('canvas'); var context = canvas.getContext('2d'); var x = Math.floor(Math.random() * canvas.width); var y = Math.floor(Math.random() * canvas.height); context.drawImage(document.getElementById(avatar.id), x, y); }); Then all my images are drawn. Is there a way to get each image individually clipped? I tried resetting the clipping area to be the entire canvas between images but that didn't work.

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Problem Render backbone collection using Mustache template

- by RameshVel

I am quite new to backbone js and Mustache. I am trying to load the backbone collection (Object array) on page load from rails json object to save the extra call . I am having troubles rendering the backbone collection using mustache template. My model & collection are var Item = Backbone.Model.extend({ }); App.Collections.Items= Backbone.Collection.extend({ model: Item, url: '/items' }); and view App.Views.Index = Backbone.View.extend({ el : '#itemList', initialize: function() { this.render(); }, render: function() { $(this.el).html(Mustache.to_html(JST.item_template(),this.collection )); //var test = {name:"test",price:100}; //$(this.el).html(Mustache.to_html(JST.item_template(),test )); } }); In the above view render, i can able to render the single model (commented test obeject), but not the collections. I am totally struck here, i have tried with both underscore templating & mustache but no luck. And this is the Template <li> <div> <div style="float: left; width: 70px"> <a href="#"> <img class="thumbnail" src="http://placehold.it/60x60" alt=""> </a> </div> <div style="float: right; width: 292px"> <h4> {{name}} <span class="price">Rs {{price}}</span></h4> </div> </div> </li> and my object array kind of looks like this

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google maps not working anymore at the drop of a hat

- by Vordreller

2 days ago, I was working on a project that involves google maps. The website showed the maps on the pages just fine. Now, I come back to my workstation, nothing has changed, expect for the fact that the google maps won't show up anymore. The code is identical, nobody has touched my machine since I was gone, I've checked the html, everything is perfect and still this isn't working... The Javascript console is giving no errors and the code is identical to a backup I make everytime I call it a day. 2 days ago it was working, today it isn't. I've even copied the source code, put it into an html file and tried that, but the same result. I'm at a loss here. This is my code: <script type="text/javascript"> //<![CDATA[ var map; var directionsPanel; var directions; function initialize() { if (GBrowserIsCompatible()) { map = new GMap2(document.getElementById("map")); map.addControl(new GLargeMapControl()); map.addControl(new GScaleControl()); map.addControl(new GMapTypeControl()); //the route description directionsPanel = document.getElementById("route"); directions = new GDirections(map, directionsPanel); directions.load({COMMAND}); } } //]]> </script> The {COMMAND} is something that the PHP template will parse, I've checked it, the format is 100% correct and like I allready said, code now is identical to the backup, and if it worked back then, it should work now. Did google update their API overnight and did a function that I use here become deprecated? I don't know what's going on here...

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Can parser combinators be made efficient?

- by Jon Harrop

Around 6 years ago, I benchmarked my own parser combinators in OCaml and found that they were ~5× slower than the parser generators on offer at the time. I recently revisited this subject and benchmarked Haskell's Parsec vs a simple hand-rolled precedence climbing parser written in F# and was surprised to find the F# to be 25× faster than the Haskell. Here's the Haskell code I used to read a large mathematical expression from file, parse and evaluate it: import Control.Applicative import Text.Parsec hiding ((<|>)) expr = chainl1 term ((+) <$ char '+' <|> (-) <$ char '-') term = chainl1 fact ((*) <$ char '*' <|> div <$ char '/') fact = read <$> many1 digit <|> char '(' *> expr <* char ')' eval :: String -> Int eval = either (error . show) id . parse expr "" . filter (/= ' ') main :: IO () main = do file <- readFile "expr" putStr $ show $ eval file putStr "\n" and here's my self-contained precedence climbing parser in F#: let rec (|Expr|) (P(f, xs)) = Expr(loop (' ', f, xs)) and loop = function | ' ' as oop, f, ('+' | '-' as op)::P(g, xs) | (' ' | '+' | '-' as oop), f, ('*' | '/' as op)::P(g, xs) -> let h, xs = loop (op, g, xs) let op = match op with | '+' -> (+) | '-' -> (-) | '*' -> (*) | '/' -> (/) loop (oop, op f h, xs) | _, f, xs -> f, xs and (|P|) = function | '('::Expr(f, ')'::xs) -> P(f, xs) | c::xs when '0' <= c && c <= '9' -> P(int(string c), xs) My impression is that even state-of-the-art parser combinators waste a lot of time back tracking. Is that correct? If so, is it possible to write parser combinators that generate state machines to obtain competitive performance or is it necessary to use code generation?

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Foreach loop returning null values in PHP?

- by Jascha

Hello, I have a pretty simple problem. Basically I have an array called $list that is a list of titles. If I do a print_r($list) I get these results: Array ( [0] => Another New Title [1] => Awesome Movies and stuff [2] => Jascha's Title ) Now, I'm running a foreach loop to retrieve their values and format them in an <ul> like so... function get_film_list(){ global $categories; $list = $categories->get_film_list(); if(count($list)==0){ echo 'No films are in this category'; }else{ echo '<ul>'; foreach($list as $title){ echo '<li>' . $title . '<li>'; } echo '</ul>'; } } The problem I'm having is my loop is returning two values per value (is it the key value?) The result of the preceding function looks like this: Another New Title Awesome Movies and stuff Jascha's Title I even tried: foreach($list as $key => $title){ echo '<li>' . $title . '<li>'; } With the same results: Another New Title Awesome Movies and stuff Jascha's Title What am I missing here? Thanks in advance.

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Symfony 1.2 to 2.3 migration

- by Bonswouar

I've got a pretty big Symfony 1.2 project to migrate. First, I modified my .htaccess so I can have some pages handled by Symfony 2. What I'd like to do, to make the migration smoother, is to be able to render some SF2 action/templates/methods/... inside SF1. I added the autoloader to the SF1 app, so I can access to twig rendering methods and other stuff. But how can I call a SF2 action ? For example, if I want to migrate only the footer first, I would also need some php methods, not only rendering. That was previously in SF1 component, where should it be now ? If you've got any suggestion about the way of migrating, don't hesitate ! EDIT 1 : Apparently, the only way to do something like that is to render a full twig template, and/or in this template call some other partial twig templates with render(url, params). Here is my SF1 code to be able to render twig templates : public static function getTwig() { require_once __DIR__.'SF2_PATH/vendor/twig/extensions/lib/Twig/Extensions/Autoloader.php'; Twig_Autoloader::register(); $loader = new Twig_Loader_Filesystem( __DIR__.'SF2_PATH/sf2/src/VENDOR/BUNDLE/'); $twig = new Twig_Environment($loader, array( 'cache' => __DIR__.'SF2_PATH/sf2/app/cache/dev/twig', )); return $twig; } And so : $twig->loadTemplate('header.html.twig'); EDIT 2 : That doesn't seem to work, if in a twig template I try to render an other one with {{render(controller('BUNDLE:CONTROLER:ACTION', {})) }} for example Twig_Error : The function "controller" does not exist. And if I try to render the url Unknown tag name "render". I guess Symfony 2 twig functionalities are not loaded, how can I do that ? EDIT 3 : Ok, now I can do it, but I've got the following message... Twig_Error_Runtime An exception has been thrown during the rendering of a template ("Rendering a fragment can only be done when handling a master Request.") in ...

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Create PDF from HTML page with formatting retained in PDF in ASP.Net

- by Vishal Avhad

I am trying to convert an HTML page to a PDF using iTextSharp.dll in ASP.Net. I am able to convert the contents to my PDF , but the problem is that the Formatting of HTML page (which is inline) get removed from my PDF created. For instance I have the following code block to be formatted from my HTML page to PDF. <table style="width:90%; float:left; background:#dddddd; padding:15px; border:1px solid #000; color:#000;"><tr><td style="text-transform:uppercase; font-size:14px;font-weight:bold;">SPECIAL DELIVERY FOR:</td></tr><tr><td style="padding-left:40px; font-size:12px; color:#4e4e4e;">Name: #CustomerName# <br /><br /><label> <b>Date: #CreatedOn# </b></label><br /> </td></tr> </table> I have to format my PDF with much more HTML codes like this. I have used the Stylesheet class also, but that was not much of help.

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Why does the add() method in PHP-GTK cause 2 parent-set signals to be emmitted?

- by JW

I am going through the book PHP-GTK and trying out listing 4-1 One thing I notice is that with the following code some odd output occurs: <?php //listing4-1b.php function setParentFunction($widget) { //get the widgets parent $parent = $widget->get_parent(); //echo a mssg about the widget echo 'The ' . get_class($widget) .' has '; if (isset($parent)) { //ech the class of the parent widget echo 'a '. get_class($parent); } else { //the widget does not have a parent echo 'no'; } echo " parent. \n"; } //start with widgets $frame = new GtkFrame('i am a frame'); $button = new GtkButton('i am a button'); //connect the event to our test function $button->connect('parent-set', 'setParentFunction'); $frame->add($button); ?> The output is: # php listing4-1b.php The GtkButton has a GtkFrame parent. The GtkButton has no parent. Now, I can understand why the first signal is getting emitted and causing the first line of output: The GtkButton has a GtkFrame parent. But, I don't understand why the 2nd 'parent change' is reported to have happened: The GtkButton has no parent. I expected only to see the signal getting emitted / and handled only once in this short script. Does this 2nd signal get emmitted when the script closes down?

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how to write right click event for selected row in ng-grid using angularjs

- by user3819122

i am using angularjs to write click event for selected row from ng-grid.but i want to write right click event for selected row from ng-grid in angularjs.below is my sample code for click event for selected row in ng-grid. Sample.html: <html> <body> <div ng-controller="tableController"> <div class="gridStyle" ng-grid="gridOptions"></div> </div> </body> </html> Sample.js: app.controller('tableController', function($scope) { $scope.myData = [{ name: "Moroni", age: 50 }, { name: "Tiancum", age: 43 }, { name: "Jacob", age: 27 }, { name: "Nephi", age: 29 }, { name: "Enos", age: 34 }]; $scope.gridOptions = { data: 'myData', enableRowSelection: true, columnDefs: [{ field: 'name', displayName: 'Name', cellTemplate: '<div ng-click="foo()" ng-bind="row.getProperty(col.field)"></div>' }, { field: 'age', displayName: 'Age', cellTemplate: '<div ng-click="foo()" ng-bind="row.getProperty(col.field)"></div>' } ] }; $scope.foo = function() { alert('select'); } }); please suggest me how to do this.

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XMLHttpRequest open() returning access denied

- by rjovic

Hi! I have problem with xhr open() method. My code follows : var xmlhttp=false; if(!xmlhttp) try { xmlhttp=new XMLHttpRequest(); } catch(e) { xmlhttp=false; } function returnPage(url) { if(!xmlhttp) return alert("Your browser doesn't seem to support XMLHttpRequests."); xmlhttp.open("GET",url,true); xmlhttp.onreadystatechange=function() { if(xmlhttp.readyState!=4) return; if(!xmlhttp.status||xmlhttp.status==200) alert(xmlhttp.responseText); else alert("Request failed!"); }; //onreadystatechange xmlhttp.send(null); } Call : <a href='#' onclick="returnPage('http://www.something.com'); return false;">Link 1</a></p> I'm using IE8 (because I'm building web slice) and I received error "Access denied". I found on the Internet that problem is that XHR isn't working across different domains, but I used code from Firefox Add-on which is working OK. And that add-on and "my" code (which are the same) are calling the same page. How that add-on have access and my code not?

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Python: slow read & write for millions of small files

- by Jami

I am building directory tree which has tons of subdirectories and files. The total directory count is somewhere along 256^32 subdirectories with 256 files in each end which are only a few bytes long. I did this so I would have fast access to these files (since i'm not searching and i'm just directly accessing then via a known file path) I have a python script that builds this filesystem and reads & writes those files. The problem is that when I reach more than 1Gb of total filesize, the read and write methods become extremely slow. Here's the function I have that reads the contents of a file (the file contains an integer string), adds a certain number to it, then writes it back to the original file. def addInFile(path, scoreToAdd): num = scoreToAdd try: shutil.copyfile(path, '/tmp/tmp.txt') fp = open('/tmp/tmp.txt', 'r') num += int(fp.readlines()[0]) fp.close() except: pass fp = open('/tmp/tmp.txt', 'w') fp.write(str(num)) fp.close() shutil.copyfile('/tmp/tmp.txt', path) I previously tried performing linux console commands but it was slower. I copy the file to a temporary file first then access/modify it then copy it back because i found this was faster than directly accessing the file. I think the cause of the slowdown is because there're tons of files. performing this function 1000 times sometimes reach 1 minute now, but before (when there were only a few files, 1000 calls was performed for only less than 1 second) How do you suggest I fix this?

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Flash AS3: Loading bar not finished when movie starts playing

- by flashey

Hi, I'm using the same code I always use for preloading another swf but it's not working this time. The problem this time is that when the loading bar gets to 16% every time you can hear the movie I'm loading playing in the background. I can just add a stop to the first frame of the movie I'm loading ("trial_1.swf") but how do I tell it to go to the second frame once it has loaded? Any help is much appreciated! Here's my code: var myrequest:URLRequest=new URLRequest ("trial_1.swf"); var myloader:Loader = new Loader(); myloader.load(myrequest); myloader.contentLoaderInfo.addEventListener(ProgressEvent.PROGRESS, progresshandler); function progresshandler(myevent:ProgressEvent):void { var myprogress:Number=myevent.target.bytesLoaded/myevent.target.bytesTotal; bar_mc.scaleX=myprogress*1.5; myTextField_txt.text = Math.round(myprogress*100)+"%" } myloader.contentLoaderInfo.addEventListener(Event.COMPLETE, finished); function finished(myevent:Event):void { addChild(myloader); removeChild(myTextField_txt) removeChild(bar_mc); removeChild(logo_mc); }

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MySQL INJECTION Solution...

- by Val

I have been bothered for so long by the MySQL injections and was thinking of a way to eliminate this problem all together. I have came up with something below hope that many people will find this useful. The only Draw back I can think of this is the partial search: Jo =returns "John" by using the like %% statement. Here is a php solution: <?php function safeQ(){ $search= array('delete','select');//and every keyword... $replace= array(base64_encode('delete'),base64_encode('select')); foreach($_REQUEST as $k=>$v){ str_replace($search, $replace, $v); } } foo(); function html($str){ $search= array(base64_encode('delete'),base64_encode('select')); $replace= array('delete','select');//and every keyword... str_replace($search, $replace, $str); } //example 1 ... ... $result = mysql_fetch_array($query); echo html($result[0]['field_name']); //example 2 $select = 'SELECT * FROM safeQ($_GET['query']) '; //example 3 $insert = 'INSERT INTO .... value(safeQ($_GET['query']))'; ?> I know, I know that you still could inject using 1=1 or any other type of injections... but this I think could solve half of your problem so the right mysql query is executed. So my question is if anyone can find any draw backs on this then please feel free to comment here. PLEASE GIVE AN ANSWER only if you think that this is a very useful solution and no major drawbacks are found OR you think is a bad idea all together...

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What does O(log n) mean exactly?

- by Andreas Grech

I am currently learning about Big O Notation running times and amortized times. I understand the notion of O(n) linear time, meaning that the size of the input affects the growth of the algorithm proportionally...and the same goes for, for example, quadratic time O(n2) etc..even algorithms, such as permutation generators, with O(n!) times, that grow by factorials. For example, the following function is O(n) because the algorithm grows in proportion to its input n: f(int n) { int i; for (i = 0; i < n; ++i) printf("%d", i); } Similarly, if there was a nested loop, the time would be O(n2). But what exactly is O(log n)? For example, what does it mean to say that the height of a complete binary tree is O(log n)? I do know (maybe not in great detail) what Logarithm is, in the sense that: log10 100 = 2, but I cannot understand how to identify a function with a logarithmic time.

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jQuery $this problems

- by kylex

I have the following code: <ul class="cssdropdown"> <li class="headlink">RANGE <ul class="innerDrop"> <li>Range Child</li> <ul> <li> <li class="headlink">HOME <ul class="innerDrop"> <li>Home Child</li> <ul> <li> </ul> I'm trying to toggle the <ul class="innerDrop" with some jQuery. And I need to do it by adding a class the hide class which has display:none It hides fine, but when I click on the HOME or RANGE it opens both inner <li> when I just want the one to open. Here is my jQuery: $(document).ready(function(){ $('li.headlink ul').addClass('hide'); $('#header').append('<div class=\"showpersonal\" onclick=\"toggleMenu()\"></div>'); $('#header').append('<div class=\"showbusiness\" onclick=\"toggleMenu()\"></div>'); }); function toggleMenu() { $('li.headlink ul').toggleClass('hide', this); }

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How to properly log out of facebook

- by Gublooo

This is a repeated question and I have followed both the suggestions provided in these StackOverflow links: How to log-out users using FaceBook connect in php and zend Trouble logging out of a FaceBook connect site and destroying sessions The issue is - the code works 90% of the time. Thats the weird part. Out of the 100 times I've logged in and out - I've experienced this problem 5-6 times and 2 of my beta test users have reported the same issue. So when it works- if u click the logout link - u get the facebook popup saying - you being logged out - when it does'nt work - absolutely nothing happens - the page does not refresh - it just sits on that page doing nothing. This is the javascript code that gets called on clicking logout function logout() { FB.Connect.get_status().waitUntilReady(function(status) { switch(status) { case FB.ConnectState.connected: FB.Connect.logoutAndRedirect("http://www.example.com/login/logout"); break; case FB.ConnectState.userNotLoggedIn: window.location = "http://www.example.com/login/logout"; break; } }); return false; } This is the php code: $this-_auth-clearIdentity(); $face = Zend_Registry::get('facebook'); $fb = new Facebook($face['appapikey'], $face['appsecret']); //$fb-clear_cookie_state(); $fb-expire_session(); Anyone experienced such sporadic issues. Thanks

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Display all the options if nothing is selected

- by Levani

I have four level connected dropdown boxes. I can choose something from second dropdown only after I select something from the first one. The third dropdown is also depended on second one and so on. I need to make selection available in second, third and fourth dropdown, even if there isn't selected anything in previous dropdown, but if the selection is made behave as it behaves now. Am I clear? Here is the code: <table width="100%" border="0" cellspacing="1" cellpadding="4">  <tr> <td style="width:150px"><?php if($eaconf->ea_loc_srchtype==0) echo "<b>".JText::_('EA_SRCH_STEP')."</b> 1: ";?><?php echo JText::_('EA_OBJ_COUNTRY'); ?></td> <td > <?php $countrylist[] = JHTML::_('select.option', 'no', JText::_('EA_NOT_SELECTED')); $x=0; foreach($countries as $c){ $countrylist[] = JHTML::_('select.option', $c ,JText::_($countrynames[$x])); $x++; } if($eaconf->ea_loc_srchtype==0){ $countrys['src_country'] = JHTML::_('select.genericlist', $countrylist,'src_country',' class="inputbox" style="width:140px" onChange="setStates(this.selectedIndex-1)"', 'value', 'text','0' ); }else{ $countrys['src_country'] = JHTML::_('select.genericlist', $countrylist,'src_country',' class="inputbox" style="width:140px" ', 'value', 'text','0' ); } ?> <?php echo $countrys['src_country'];?> </td> </tr>  <tr> <td ><?php if($eaconf->ea_loc_srchtype==0) echo "<b>".JText::_('EA_SRCH_STEP')."</b> 2: ";?><?php echo JText::_('EA_OBJ_STATE'); ?></td> <td > <?php $statelist[] = JHTML::_('select.option', 'no', JText::_('EA_NOT_SELECTED')); foreach($stateslist as $s){ $statelist[] = JHTML::_('select.option', $s ,JText::_($s)); } if($eaconf->ea_loc_srchtype==0){ $thestates['src_state'] = JHTML::_('select.genericlist', $statelist,'src_state',' class="inputbox" style="width:140px" onChange="setDistricts(this.selectedIndex-1)"', 'value', 'text','0' ); }else{ $thestates['src_state'] = JHTML::_('select.genericlist', $statelist,'src_state',' class="inputbox" style="width:140px" ', 'value', 'text','0' ); } ?> <?php echo $thestates['src_state'];?> </td> </tr>  <tr> <td > <?php if($eaconf->ea_loc_srchtype==0) echo "<b>".JText::_('EA_SRCH_STEP')."</b> 3: ";?><?php echo JText::_('EA_OBJ_DISTRICT'); ?> </td> <td > <?php $districtlist[] = JHTML::_('select.option', 'no',JText::_('EA_NOT_SELECTED')); foreach($districtslist as $dist){ $districtlist[] = JHTML::_('select.option', $dist ,JText::_($dist)); } if($eaconf->ea_loc_srchtype==0){ $thedistrict['src_district'] = JHTML::_('select.genericlist', $districtlist,'src_district',' class="inputbox" style="width:140px" onChange="setTowns(this.selectedIndex-1)"', 'value', 'text','0' ); }else{ $thedistrict['src_district'] = JHTML::_('select.genericlist', $districtlist,'src_district',' class="inputbox" style="width:140px" ', 'value', 'text','0' ); } ?> <?php echo $thedistrict['src_district'];?> </td> </tr>  <tr> <td ><?php if($eaconf->ea_loc_srchtype==0) echo "<b>".JText::_('EA_SRCH_STEP')."</b> 4: ";?><?php echo JText::_('EA_OBJ_TOWN'); ?></td> <td > <?php $townlist[] = JHTML::_('select.option', 'no',JText::_('EA_NOT_SELECTED')); foreach($townslist as $town){ $townlist[] = JHTML::_('select.option', $town ,JText::_($town)); } if($eaconf->ea_loc_srchtype==0){ $towns['src_town'] = JHTML::_('select.genericlist', $townlist,'src_town',' class="inputbox" style="width:140px" ', 'value', 'text','0' ); }else{ $towns['src_town'] = JHTML::_('select.genericlist', $townlist,'src_town',' class="inputbox" style="width:140px" ', 'value', 'text','0' ); } ?> <?php echo $towns['src_town'];?> </td> </tr> </table> And the javascript: function setStates(scountry) { sel_state = document.easearch.elements["src_state"]; sel_town = document.easearch.elements["src_town"]; sel_district = document.easearch.elements["src_district"]; empty("src_state"); if(scountry=='no') { new_entry = new Option("<?php echo JText::_('EA_NOT_SELECTED');?>"); new_opt = sel_state.options.length; sel_state.options[new_opt] = new_entry; sel_state.options[new_opt].value = "no"; sel_state.options[new_opt].text = "<?php echo JText::_('EA_NOT_SELECTED');?>"; empty("src_district"); new_entry = new Option("<?php echo JText::_('EA_NOT_SELECTED');?>"); new_opt = sel_district.options.length; sel_district.options[new_opt] = new_entry; sel_district.options[new_opt].value = "no"; sel_district.options[new_opt].text = "<?php echo JText::_('EA_NOT_SELECTED');?>"; empty("src_town"); new_entry = new Option("<?php echo JText::_('EA_NOT_SELECTED');?>"); new_opt = sel_town.options.length; sel_town.options[new_opt] = new_entry; sel_town.options[new_opt].value = "no"; sel_town.options[new_opt].text = "<?php echo JText::_('EA_NOT_SELECTED');?>"; } else{ new_entry = new Option("<?php echo JText::_('EA_NOT_SELECTED');?>"); new_opt = sel_state.options.length; sel_state.options[new_opt] = new_entry; sel_state.options[new_opt].value = "no"; sel_state.options[new_opt].text = "<?php echo JText::_('EA_NOT_SELECTED');?>"; for (x=0;x<States[scountry].length;x++ ){ new_entry = new Option(States[scountry][x]); new_opt = sel_state.options.length; sel_state.options[new_opt] = new_entry; sel_state.options[new_opt].value = x; sel_state.options[new_opt].text = States[scountry][x]; } empty("src_district"); new_entry = new Option("<?php echo JText::_('EA_NOT_SELECTED');?>"); new_opt = sel_district.options.length; sel_district.options[new_opt] = new_entry; sel_district.options[new_opt].value = "no"; sel_district.options[new_opt].text = "<?php echo JText::_('EA_NOT_SELECTED');?>"; empty("src_town"); new_entry = new Option("<?php echo JText::_('EA_NOT_SELECTED');?>"); new_opt = sel_town.options.length; sel_town.options[new_opt] = new_entry; sel_town.options[new_opt].value = "no"; sel_town.options[new_opt].text = "<?php echo JText::_('EA_NOT_SELECTED');?>"; } } function setDistricts(sstate) { scountry = document.easearch.src_country.selectedIndex-1; // sstate = document.easearch.src_state.value; sel_district = document.easearch.elements["src_district"]; empty("src_district"); if(sstate=='no') { new_entry = new Option("<?php echo JText::_('EA_NOT_SELECTED');?>"); new_opt = sel_district.options.length; sel_district.options[new_opt] = new_entry; sel_district.options[new_opt].value = "no"; sel_district.options[new_opt].text = "<?php echo JText::_('EA_NOT_SELECTED');?>"; empty("src_town"); new_entry = new Option("<?php echo JText::_('EA_NOT_SELECTED');?>"); new_opt = sel_town.options.length; sel_town.options[new_opt] = new_entry; sel_town.options[new_opt].value = "no"; sel_town.options[new_opt].text = "<?php echo JText::_('EA_NOT_SELECTED');?>"; } else{ new_entry = new Option("<?php echo JText::_('EA_NOT_SELECTED');?>"); new_opt = sel_district.options.length; sel_district.options[new_opt] = new_entry; sel_district.options[new_opt].value = "no"; sel_district.options[new_opt].text = "<?php echo JText::_('EA_NOT_SELECTED');?>"; for (x=0;x<Districts[scountry][sstate].length;x++ ){ new_entry = new Option(Districts[scountry][sstate][x]); new_opt = sel_district.options.length; sel_district.options[new_opt] = new_entry; sel_district.options[new_opt].value = x; sel_district.options[new_opt].text = Districts[scountry][sstate][x]; } empty("src_town"); new_entry = new Option("<?php echo JText::_('EA_NOT_SELECTED');?>"); new_opt = sel_town.options.length; sel_town.options[new_opt] = new_entry; sel_town.options[new_opt].value = "no"; sel_town.options[new_opt].text = "<?php echo JText::_('EA_NOT_SELECTED');?>"; } } function setTowns(sdistrict) { scountry = document.easearch.src_country.selectedIndex-1; sstate = document.easearch.src_state.value; sel_town = document.easearch.elements["src_town"]; sel_district = document.easearch.elements["src_district"]; empty("src_town"); if(sdistrict=='no') { new_entry = new Option("<?php echo JText::_('EA_NOT_SELECTED');?>"); new_opt = sel_town.options.length; sel_town.options[new_opt] = new_entry; sel_town.options[new_opt].value = "no"; sel_town.options[new_opt].text = "<?php echo JText::_('EA_NOT_SELECTED');?>"; empty("src_district"); new_entry = new Option("<?php echo JText::_('EA_NOT_SELECTED');?>"); new_opt = sel_district.options.length; sel_district.options[new_opt] = new_entry; sel_district.options[new_opt].value = "no"; sel_district.options[new_opt].text = "<?php echo JText::_('EA_NOT_SELECTED');?>"; } else{ new_entry = new Option("<?php echo JText::_('EA_NOT_SELECTED');?>"); new_opt = sel_town.options.length; sel_town.options[new_opt] = new_entry; sel_town.options[new_opt].value = "no"; sel_town.options[new_opt].text = "<?php echo JText::_('EA_NOT_SELECTED');?>"; for (x=0;x<Towns[scountry][sstate][sdistrict].length;x++ ){ new_entry = new Option(Towns[scountry][sstate][sdistrict][x]); new_opt = sel_town.options.length; sel_town.options[new_opt] = new_entry; sel_town.options[new_opt].value = x; sel_town.options[new_opt].text = Towns[scountry][sstate][sdistrict][x]; } } } function empty(field) { document.easearch.elements[field].options.length = 0; }

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jQuery slideDown: Parent element doesn't expand?

- by bobsoap

Hi, This issue occurs in our beloved Internet Explorer 7: I have a list of items, each with a hidden child div. When user clicks the "expand" button in any list item, the hidden div will expand downwards and push all content beneith it lower. This works just as it should in FF, Chrome, IE8 - but IE7 will not expand the parent element along with its children. This is noticeable because the top-most parent container has an absolutely positioned image at the very bottom (yea... rounded corners) - that doesn't get pushed down when the content expands. I'm guessing that's because of the absolute positioning... Just wondering whether I should attempt to code up some huge workaround in jQuery just for that (assuming I'm able to), or if this is a known issue of some sort. My HTML: <div id="container"> <ul> <li>Click here to expand <div class="hide"></div> </li> <li>Click here to expand <div class="hide"></div> </li> <li>Click here to expand <div class="hide"></div> </li> </ul> <div id="containerbottom"></div> </div> The CSS: #container { position:relative; } #container #containerbottom { position:absolute; bottom:0px; left:0px; } The jQuery is pretty much your everyday slide function: $('ul li').click(function() { $(this).children('.hide').slideDown(200); }); Any ideas?

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jQuery Accordion: IE animation issues

- by Nathan Long

Update I am making this a community wiki, for three reasons: I don't feel like I got a definitive answer, but I have long since stopped needing an answer, because I rolled my own accordion function this question gets tons of views, so clearly lots of people are still interested So if anybody wants to change/clarify this question and make it a definitive guide, be my guest. I'm working on a page using jQuery's accordion UI element. I modeled my HTML on that example, except that inside the <li> elements, I have some unordered lists of links. Like this: $(document).ready(function() { $(".ui-accordion-container").accordion( {active: "a.default", alwaysOpen: true, autoHeight: false} ); }); <ul class="ui-accordion-container"> <li>  <a href='#' class="accordion-label">A Group of Links</a> <ul class="linklist"> <li><a href="http://example.com">Example Link</a></li> <li><a href="http://example.com">Example Link</a></li> </ul>  Problem: IE Animation stinks Although IE7 animates the documentation's example accordion menu just fine, it has problems with mine. Specifically, one accordion menu on the page moves jerkily and has flashes of content. I know that it's not a CSS issue because the same thing happens if I don't include my CSS files. The other accordion menu on the page opens the first section you click and, after that, won't open any of them. Both of these problems are IE-specific, and both go away if I use the option animated: false. But I'd like to keep the default slide animation, since it helps the user understand what the menu is doing. Is there another way?

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ActionScript Tweening Matrix Transform (big problem)

- by TheDarkIn1978

i'm attempting to tween the position and angle of a sprite. if i call the functions without tweening, to appear in one step, it's properly set at the correct coordinates and angle. however, tweening it makes it all go crazy. i'm using an rotateAroundInternalPoint matrix, and assume tweening this along with coordinate positions is messing up the results. works fine (without tweening): public function curl():void { imageWidth = 400; imageHeight = 600; parameters.distance = 0.5; parameters.angle = 45; backCanvas.x = imageWidth - imageHeight * parameters.distance; backCanvas.y = imageHeight - imageHeight * parameters.distance; var internalPointMatrix:Matrix = backCanvas.transform.matrix; MatrixTransformer.rotateAroundInternalPoint(internalPointMatrix, backCanvas.width * parameters.distance, 0, parameters.angle); backCanvas.transform.matrix = internalPointMatrix; } doesn't work properly (with tweening): public function curlUp():void { imageWidth = 400; imageHeight = 600; parameters.distance = 0.5; parameters.angle = 45; distanceTween = new Tween(parameters, "distance", None.easeNone, 0, distance, 1, true); angleTween = new Tween(parameters, "angle", None.easeNone, 0, angle, 1, true); angleTween.addEventListener(TweenEvent.MOTION_CHANGE, animateCurl); } private function animateCurl(evt:TweenEvent):void { backCanvas.x = imageWidth - imageHeight * parameters.distance; backCanvas.y = imageHeight - imageHeight * parameters.distance; var internalPointMatrix:Matrix = backCanvas.transform.matrix; MatrixTransformer.rotateAroundInternalPoint(internalPointMatrix, backCanvas.width * parameters.distance, 0, parameters.angle - previousAngle); backCanvas.transform.matrix = internalPointMatrix; previousAngle = parameters.angle; } in order for the angle to tween properly, i had to add a variable that would track it's last angle setting and subtract it from the new one. however, i still can not get this tween to return the same end position and angle as is without tweening. i've been stuck on this problem for a day now, so any help would be greatly appreciated.

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Internal "Tee" setup

- by RadlyEel

I have inherited some really old VC6.0 code that I am upgrading to VS2008 for building a 64-bit app. One required feature that was implemented long, long ago is overriding std::cout so its output goes simultaneously to a console window and to a file. The implementation depended on the then-current VC98 library implementation of ostream and, of course, is now irretrievably broken with VS2008. It would be reasonable to accumulate all the output until program termination time and then dump it to a file. I got part of the way home by using freopen(), setvbuf(), and ios::sync_with_stdio(), but to my dismay, the internal library does not treat its buffer as a ring buffer; instead when it flushes to the output device it restarts at the beginning, so every flush wipes out all my accumulated output. Converting to a more standard logging function is not desirable, as there are over 1600 usages of "std::cout << " scattered throughout almost 60 files. I have considered overriding ostream's operator<< function, but I'm not sure if that will cover me, since there are global operator<< functions that can't be overridden. (Or can they?) Any ideas on how to accomplish this?

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