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  • FLEX: the custom component is still a Null Object when I invoke its method

    - by Patrick
    Hi, I've created a custom component in Flex, and I've created it from the main application with actionscript. Successively I invoke its "setName" method to pass a String. I get the following run-time error (occurring only if I use the setName method): TypeError: Error #1009: Cannot access a property or method of a null object reference. I guess I get it because I'm calling to newUser.setName method from main application before the component is completely created. How can I ask actionscript to "wait" until when the component is created to call the method ? Should I create an event listener in the main application waiting for it ? I would prefer to avoid it if possible. Here is the code: Main app ... newUser = new userComp(); //newUser.setName("name"); Component: <?xml version="1.0" encoding="utf-8"?> <mx:VBox xmlns:mx="http://www.adobe.com/2006/mxml" width="100" height="200" > <mx:Script> <![CDATA[ public function setName(name:String):void { username.text = name; } public function setTags(Tags:String):void { } ]]> </mx:Script> <mx:HBox id="tagsPopup" visible="false"> <mx:LinkButton label="Tag1" /> <mx:LinkButton label="Tag2" /> <mx:LinkButton label="Tag3" /> </mx:HBox> <mx:Image source="@Embed(source='../icons/userIcon.png')"/> <mx:Label id="username" text="Nickname" visible="false"/> </mx:VBox> thanks

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  • Email Tracking - GMail

    - by Abs
    Hello all, I am creating my own email tracking system for email marketing tracking. I have been able to determine each persons email client they are using by using the http referrer but for some reason GMAIL does not send a HTTP_REFERRER at all! So I am trying to find another way of identifying when gmail requests a transparent image from my server. I get the following headers print_r($_SERVER);: DOCUMENT_ROOT = /usr/local/apache/htdocs GATEWAY_INTERFACE = CGI/1.1 HTTP_ACCEPT = */* HTTP_ACCEPT_CHARSET = ISO-8859-1,utf-8;q=0.7,*;q=0.3 HTTP_ACCEPT_ENCODING = gzip,deflate,sdch HTTP_ACCEPT_LANGUAGE = en-GB,en-US;q=0.8,en;q=0.6 HTTP_CONNECTION = keep-alive HTTP_COOKIE = __utmz=156230011.1290976484.1.1.utmcsr=(direct)|utmccn=(direct)|utmcmd=(none); __utma=156230011.422791272.1290976484.1293034866.1293050468.7 HTTP_HOST = xx.xxx.xx.xxx HTTP_USER_AGENT = Mozilla/5.0 (Windows; U; Windows NT 6.1; en-US) AppleWebKit/534.10 (KHTML, like Gecko) Chrome/8.0.552.237 Safari/534.10 PATH = /bin:/usr/bin QUERY_STRING = i=MTA= REDIRECT_STATUS = 200 REMOTE_ADDR = xx.xxx.xx.xxx REMOTE_PORT = 61296 REQUEST_METHOD = GET Is there anything of use in that list? Or is there something else I can do to actually get the http referrer, if not how are other ESPs managing to find whether gmail was used to view an email? Btw, I appreciate it if we can hold back on whether this is ethical or not as many ESPs do this already, I just don't want to pay for their service and I want to do it internally. Thanks all for any implementation advice. Update Just thought I would update this question and make it clearer in light of the bounty. I would like to find out when a user opens my email when sent to a GMail inbox. Assume, I have the usual transparent image tracking and the user does not block images. I would like to do this with the single request and the header details I get when the transparent image is requested.

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  • How to Read some of the properties of the ItemSource when Laying out the Children?

    - by user275561
    Assume that I have the ItemSource bound and i am getting the data. Now what I want is this. The ItemSource will contain Data that tells where each button should be. For Example: The first Button could be at Left:200,Top:0, the Second could be Left:50 Top:20. </ItemsControl.Resources> <ItemsControl.ItemsPanel> <ItemsPanelTemplate> <Controls:MatrixCanvas /> </ItemsPanelTemplate> </ItemsControl.ItemsPanel> <ItemsControl.ItemTemplate> <DataTemplate> <item:CustomButton Height="{Binding btnSize}" Width="{Binding btnSize}" Style="{Binding bbColor,Converter={StaticResource ButtonStyleConverter}}" /> </DataTemplate> </ItemsControl.ItemTemplate> </ItemsControl> protected override Size ArrangeOverride(Size finalSize) { foreach (var child in Children) { //The child } return base.ArrangeOverride(finalSize); } The Child however is not giving me access to the Item that I want. Is their a good solution for this? Am I going about this the wrong way? The reason I am doing it like this is because their can be buttons added dynamically, removed, some buttons will need to move around etc..

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  • Trouble Shoot JavaScript Function in IE

    - by CreativeNotice
    So this function works fine in geko and webkit browsers, but not IE7. I've busted my brain trying to spot the issue. Anything stick out for you? Basic premise is you pass in a data object (in this case a response from jQuery's $.getJSON) we check for a response code, set the notification's class, append a layer and show it to the user. Then reverse the process after a time limit. function userNotice(data){ // change class based on error code returned var myClass = ''; if(data.code == 200){ myClass='success'; } else if(data.code == 400){ myClass='error'; } else{ myClass='notice'; } // create message html, add to DOM, FadeIn var myNotice = '<div id="notice" class="ajaxMsg '+myClass+'">'+data.msg+'</div>'; $("body").append(myNotice); $("#notice").fadeIn('fast'); // fadeout and remove from DOM after delay var t = setTimeout(function(){ $("#notice").fadeOut('slow',function(){ $(this).remove(); }); },5000); }

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  • Disable Painting of the VScrollbar in a System.Windows.Forms.RichTextBox

    - by SchlaWiener
    I have a custom control inherited from RichTextBox. This control has the ability to "disable" rich text editing. I achive this by just setting the Rtf property to the text property during the TextChanged event. this is how my code looks like: private bool lockTextChanged; void RichTextBox_TextChanged(object sender, EventArgs e) { // prevent StackOverflowException if (lockTextChanged) return; // remember current position int rtbstart = rtb.SelectionStart; int len = rtb.SelectionLength; // prevent painting rtb.SuspendLayout(); // set the text property to remove the entire formatting. lockTextChanged = true; rtb.Text = rtb.Text; rtb.Select(rtbstart, len); lockTextChanged = false; rtb.ResumeLayout(true); } That worked well. However in a large text with like 200 lines the controls jitters (you see the first lines of text for the wink). To prevent that from happening I filter the WM_PAINT between SuspendLayout() and ResumeLayout() private bool layoutSuspended; public new void SuspendLayout() { layoutSuspended = true; base.SuspendLayout(); } public new void ResumeLayout() { layoutSuspended = false; base.ResumeLayout(); } public new void ResumeLayout(bool performLayout) { layoutSuspended = false; base.ResumeLayout(performLayout); } private const int WM_PAINT = 0x000F; protected override void WndProc(ref System.Windows.Forms.Message m) { if (!(m.Msg == WM_PAINT && layoutSuspended)) base.WndProc(ref m); } that did the trick, the RichTextBox isn't jittering anymoe. That's what I wanted to achive, except one thing: The scrollbar is still jittering everytime I type text to my control. Now my question: Does anyone have a clue for me how to prevent the scrollbar from redrawing during Suspend/Resume Layout?

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  • Apache with JBOSS using AJP (mod_jk) giving spikes in thread count.

    - by Beginner
    We used Apache with JBOSS for hosting our Application, but we found some issues related to thread handling of mod_jk. Our website comes under low traffic websites and has maximum 200-300 concurrent users during our website's peak activity time. As the traffic grows (not in terms of concurrent users, but in terms of cumulative requests which came to our server), the server stopped serving requests for long, although it didn't crash but could not serve the request till 20 mins. The JBOSS server console showed that 350 thread were busy on both servers although there was enough free memory say, more than 1-1.5 GB (2 servers for JBOSS were used which were 64 bits, 4 GB RAM allocated for JBOSS) In order to check the problem we were using JBOSS and Apache Web Consoles, and we were seeing that the thread were showing in S state for as long as minutes although our pages take around 4-5 seconds to be served. We took the thread dump and found that the threads were mostly in WAITING state which means that they were waiting indefinitely. These threads were not of our Application Classes but of AJP 8009 port. Could somebody help me in this, as somebody else might also got this issue and solved it somehow. In case any more information is required then let me know. Also is mod_proxy better than using mod_jk, or there are some other problems with mod_proxy which can be fatal for me if I switch to mod__proxy? The versions I used are as follows: Apache 2.0.52 JBOSS: 4.2.2 MOD_JK: 1.2.20 JDK: 1.6 Operating System: RHEL 4 Thanks for the help.

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  • sending parameters with ajax

    - by kawtousse
    I am trying to send parameters that I get from a table in my jsp to other JSP using ajax. I am using the followinf function to send all values to JSP: ajaxForm but I don't know why the send failed every time I run it: Here is the javascript function: function editarow() { var xhr = getXhr(); xhr.onreadystatechange = function() { if (xhr.readyState == 4 && xhr.status == 200) { selects = xhr.responseText; // On se sert de innerHTML pour rajouter les options a la liste document.getElementById('prjsel').innerHTML = selects; } }; var row, firstNameCell, lastNameCell; var table = document.getElementById("sheet"); var buttons = table.getElementsByTagName("button"); for (var i = 0; i < buttons.length; i++) { if (buttons[i].name == "edit") { buttons[i].onclick = function() { row = this.parentNode.parentNode; // The first name cell is the first child NameCell1 = findElement(row.firstChild); NameCell2 = findElement(NameCell1.nextSibling); NameCell3 = findElement(NameCell2.nextSibling); NameCell4 = findElement(NameCell3.nextSibling); NameCell5 = findElement(NameCell4.nextSibling); NameCell6 = findElement(NameCell5.nextSibling); NameCell7 = findElement(NameCell6.nextSibling); // `innerHTML` pour obtenir la valeur /*alert("name 1 is " + NameCell1.innerHTML); alert("name 2 is " + NameCell2.innerHTML); alert("name 3 is " + NameCell3.innerHTML); alert("name 4 is " + NameCell4.innerHTML); alert("name 5 is " + NameCell5.innerHTML); alert("name 6 is " + NameCell6.innerHTML); alert("name 7 is " + NameCell7.innerHTML);*/ } } } xhr.open("POST", "ajaxForm.jsp", true); xhr.setRequestHeader('Content-Type', 'application/x-www-form-urlencoded'); xhr.send("NameCell1="+NameCell1,"NameCell2="+NameCell2,"NameCell3="+NameCell3,"NameCell4="+NameCell4,"NameCell5="+NameCell5,"NameCell6="+NameCell6,"NameCell7="+NameCell7 ); } After I get the value from the table I want to send all of them to the ajaxForm.jsp.

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  • Making ANTLR generated class files into one jar file.

    - by prosseek
    With ANTLR, I get some java class files after compilation. And I need to make all the class files into one jar file. I make manifest.mf file that has one line "Main-class: Test" to indicate the main file. I run 'jar cmf manifest.mf hello.jar *.class' to get hello.jar file. But when I try to run 'java -jar hello.jar', I get the following error messages. $ java -jar hello.jar Exception in thread "main" java.lang.NoClassDefFoundError: Test Caused by: java.lang.ClassNotFoundException: Test at java.net.URLClassLoader$1.run(URLClassLoader.java:200) at java.security.AccessController.doPrivileged(Native Method) at java.net.URLClassLoader.findClass(URLClassLoader.java:188) at java.lang.ClassLoader.loadClass(ClassLoader.java:315) at sun.misc.Launcher$AppClassLoader.loadClass(Launcher.java:330) at java.lang.ClassLoader.loadClass(ClassLoader.java:250) at java.lang.ClassLoader.loadClassInternal(ClassLoader.java:398) What's wrong? I get correct result when I run 'java Test'. The example that I used is the source code from the book 'The Definitive ANTLR Reference' that you can download from http://www.pragprog.com/titles/tpantlr/source_code The example is in /tour/trees/. I get a bunch of class files after compiling g and java files.

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  • jQuery aspx error function always called, even with apparently valid return data

    - by M Katz
    I am making an ajax call using jQuery (jquery-1.5.2.min.js). The server receives the call. fiddler shows the response text coming back apparently correct. But back in javascript my error: function is called instead of my success: function, and the data of the parameters to the error function don't give much clue as to the problem. Here's the function where I make the initial call: function SelectCBGAtClickedPoint() { $.ajax( { type: "GET", dataType: "text", url: "http://localhost/ajax/SelectCBGAtPoint/1/2", success: function( msg ) { alert( "success: " + msg ); }, error: function( jqXHR, textStatus, errorThrown ) { alert( "error: " + jqXHR + textStatus + errorThrown ); } } ); } Here's the function where I handle the call in my cherrypy server code: def ajax( ajax, *args ): with lock: print "ajax request received: " + str( args ) cherrypy.response.headers[ "Content-Type" ] = "application/text" return "{ x: 0 }" Cherrypy is an odd beast, and I was thinking the problem must lie there. But as I say, I see both the query go out and the response come back in Fiddler. Here is what Fiddler shows as the raw view of the response: HTTP/1.1 200 OK Date: Mon, 11 Apr 2011 17:49:25 GMT Content-Length: 8 Content-Type: application/text Server: CherryPy/3.2.0 { x: 0 } Looks good, but then back in javascript, I get into the error: function, with the following values for the parameters (as shown in firebug): errorThrown = "" jqXHR = Object { readyState=0, status=0, statusText="error"} statusText = "error" I don't know where that word "error" is coming from. That string does not appear anywhere in my cherrypy server code. Note that even though I'm returning a JSON string I've set the send and receive types to "text" for now, just to simplify in order to isolate the problem. Any ideas why I'm getting this "error" reply, even when errorThrown is empty? Could it be that I haven't properly "initialized" either jQuery or jQuery.ajax?

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  • Panoramio API access using AJAX - error "Origin hxxp://foo.bar is not allowed by Access-Control-Allow-Origin."

    - by Marko
    Hello there! I am currently experiencing this issue, and am wondering why...? The error message is: "XMLHttpRequest cannot load http://www.panoramio.com/wapi/data/get_photos?v=1&key=dummykey&tag=test&offset=0&length=20&minx=-30&miny=0&maxx=0&maxy=150&callback=?. Origin hxxp://foo.bar is not allowed by Access-Control-Allow-Origin. test_panoramio.html:59Uncaught SyntaxError: Unexpected token )" "hxxp://foo.bar" refers to the site I am running the script from. The "test_panoramio.html" on the site contains e.g. the following : var url = "http://www.panoramio.com/wapi/data/get_photos? v=1&key=dummykey&tag=test&offset=0&length=20&minx=- 30&miny=0&maxx=0&maxy=150&callback=?"; function myScriptFn() { if (window.XMLHttpRequest) { myAjax = new XMLHttpRequest(); if ( typeof myAjax.overrideMimeType != 'undefined') { myAjax.overrideMimeType('text/xml'); } } else if (window.ActiveXObject) { myAjax = new ActiveXObject("Microsoft.XMLHTTP"); } else { alert('The browser does not support the AJAX XMLHttpRequest!!!'); } myAjax.onreadystatechange = function() { handleResponse(); } myAjax.open('GET', url, true); myAjax.send(null); } function handleResponse() { if (myAjax.readyState == 4){ // Response is COMPLETE if ((myAjax.status == 200) || (myAjax.status = 304)) { // do something with the responseText or responseXML processResults(); }else{ alert("[handleResponse]: An error has occurred."); } } } function processResults() { myObj = eval( '(' + myAjax.responseText + ')' ); ... doSomething() ... } The Panoramio URL works if typed directly to the browser. Please could you help me with this, I am running out of hope...:( Thank you in advance, Yours Marko

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  • Please help me work out this error, regarding the use of a HTTPService to connect Flex4 & Ruby on Ra

    - by ben
    I have a HTTPService in Flash Builder 4, that is defined as follows: <s:HTTPService id="getUserDetails" url="http://localhost:3000/users/getDetails" method="GET"/> It gets called as follows: getUserDetails.send({'user[username]': calleeInput.text}); Here is a screenshot of the network monitor, showing that the parameter is being sent correctly (it is 'kirsty'): Here is the Ruby on Rails method that it's connected to: def getDetails @user = User.find_by_username(:username) render :xml => @user end When I run it, I get the following error output in the console: Processing UsersController#list (for 127.0.0.1 at 2010-04-30 17:48:03) [GET] User Load (1.1ms) SELECT * FROM "users" Completed in 30ms (View: 16, DB: 1) | 200 OK [http://localhost/users/list] Processing UsersController#getDetails (for 127.0.0.1 at 2010-04-30 17:48:13) [GET] Parameters: {"user"={"username"="kirsty"}} User Load (0.3ms) SELECT * FROM "users" WHERE ("users"."username" = '--- :username ') LIMIT 1 ActionView::MissingTemplate (Missing template users/getDetails.erb in view path app/views): app/controllers/users_controller.rb:36:in getDetails' /usr/local/lib/ruby/1.8/webrick/httpserver.rb:104:in service' /usr/local/lib/ruby/1.8/webrick/httpserver.rb:65:in run' /usr/local/lib/ruby/1.8/webrick/server.rb:173:in start_thread' /usr/local/lib/ruby/1.8/webrick/server.rb:162:in start' /usr/local/lib/ruby/1.8/webrick/server.rb:162:in start_thread' /usr/local/lib/ruby/1.8/webrick/server.rb:95:in start' /usr/local/lib/ruby/1.8/webrick/server.rb:92:in each' /usr/local/lib/ruby/1.8/webrick/server.rb:92:in start' /usr/local/lib/ruby/1.8/webrick/server.rb:23:in start' /usr/local/lib/ruby/1.8/webrick/server.rb:82:in `start' Rendering rescues/layout (internal_server_error) I'm not sure if the error is being caused by bad code in the getDetails Ruby on Rails method? I'm new to RoR, and I think I remember reading somewhere that every method should have a view. I'm just using this method to get info into the Flex 4 app, do I still need to make a view for it? Is that what's causing the error? Any help would be GREATLY appreciated, I've been stuck on this for a few days now! Thanks.

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  • Coda Slider and Fancybox Conflict

    - by Jings
    Hey there, i have some issues with Coda Slider and Fancybox. I use Fancybox to load an external Site within an Iframe and Coda Slider is for the Content Slider on the Startpage. If i have the jquery-easing Plugin called in my Head fpr the Coda Slider, the Fancybox doesn't work. When i delete the link to jquery-easing-1.3 the Coda Slider throws an Exception but the Fancybox works perfectly Here is some Code: <script type="text/javascript" src="<?php bloginfo('template_directory') ?>/js/jquery.js"></script> <script type="text/javascript" src="<?php bloginfo('template_directory') ?>/fancybox/jquery.fancybox-1.3.4.pack.js"></script> <script type="text/javascript" src="<?php bloginfo('template_directory') ?>/js/coda-slider.js"></script> <script type="text/javascript" src="<?php bloginfo('template_directory') ?>/js/jquery.easing.1.3.js"></script> <script> $(document).ready(function(){ $(".book a").fancybox({ 'width' : '75%', 'height' : '75%', 'speedIn' : 600, 'speedOut' : 200, 'overlayShow' : true, 'type' : 'iframe', 'autoscale' : false, 'hideOnOverlayClick' : true }); $('#coda-slider').codaSlider({ autoSlide: true, autoSlideInterval: 5500, autoHeightEaseDuration: 2500, autoHeightEaseFunction: "easeInOutElastic", slideEaseDuration: 2500, slideEaseFunction: "easeInOutElastic", dynamicArrows: false, dynamicTabs: false }); }); </script> Don't know why this doesn't work as it should :) Hope you Guys know =)

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  • jQuery Tools alert works once (but only once)

    - by Jim Miller
    I'm trying to build a simple alert mechanism with jQuery Tools -- in response to a bit of Javascript code, pop up an overlay with a message and an OK button that, when clicked, makes the overlay go away. Trivial, or it should be. I've been slavishly following http://flowplayer.org/tools/demos/overlay/trigger.html, and have something that works fine the first time it's invoked, but only that time. If I repeat the JS action that should expose the overlay, it doesn't. My content/DIV: <div class='modal' id='the_alert'> <div id='modal_content' class='modal_content'> <h2>hi there</h2> this is the body <p> <button class='close'>OK</button> </p> </div> <div id='modal_background' class='modal_background'><img src='/images/overlay/f9f9f9-180.png' class='stretch' alt='' /></div> </div> and the Javascript: function showOverlayDialog() { $('#the_alert').overlay({ mask: {color: '#cccccc', loadSpeed: 200, opacity: 0.9}, closeOnClick: false, load: true }); } As I said: When showOverlayDialog() is invoked the first time, the overlay appears just like it should, and goes away when the "OK" button is clicked. But if I cause showOverlayDialog() to run again, without reloading the page, nothing happens. If I reload the page, then the pattern repeats -- the first invocation brings up the overlay, but the second one doesn't. I'm obviously missing something -- any advice out there? Thanks!

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  • Problem using NSXMLParser with NOAA data on iPhone

    - by Amagrammer
    Can anyone help me see why NSXMLParser is not causing these methods parser:didStartElement:namespaceURI:qualifiedName:attributes: parser:didEndElement:namespaceURI:qualifiedName:attributes: to fire for the part of the following data: <?xml version="1.0" encoding="ISO-8859-1"?><SOAP-ENV:Envelope SOAP-ENV:encodingStyle="http://schemas.xmlsoap.org/soap/encoding/" xmlns:SOAP-ENV="http://schemas.xmlsoap.org/soap/envelope/" xmlns:xsd="http://www.w3.org/2001/XMLSchema" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xmlns:SOAP-ENC="http://schemas.xmlsoap.org/soap/encoding/"><SOAP-ENV:Body><ns1:NDFDgenResponse xmlns:ns1=""><dwmlOut xsi:type="xsd:string"><?xml version="1.0"?> <dwml version="1.0" xmlns:xsd="http://www.w3.org/2001/XMLSchema" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xsi:noNamespaceSchemaLocation="http://www.nws.noaa.gov/forecasts/xml/DWMLgen/schema/DWML.xsd"> (body excluded) </dwml> </dwmlOut></ns1:NDFDgenResponse></SOAP-ENV:Body></SOAP-ENV:Envelope> I'm not an XML expert, but to me, the part looks like just a regular element, to be parsed just like the parts before it. I do get two parser:parseErrorOccurred: errors, #200 and #201, but they occur during the parsing of the <SOAP-ENV:Body> element, not the element, so I'm not sure if they are relevant. Thanks for any help you can give me.

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  • Why can't I pass an argument to create this window using wxpython?

    - by somefreakingguy
    I am trying to learn how to make a GUI in python! Following an online tutorial, I found that the following code 'works' in creating an empty window: import wx from sys import argv class bucky(wx.Frame): def __init__(self, parent, id): wx.Frame.__init__(self, parent, id, 'Frame aka window', size=(300, 200)) if __name__=='__main__': app=wx.PySimpleApp() frame=bucky(parent=None,id=-1) frame.Show() app.MainLoop() That gives me a window, which is great. However, what if I want to get an argument passed onto the program to determine the window size? I thought something like this ought to do the trick: import wx from sys import argv script, x, y = argv class mywindow(wx.Frame): def __init__(self, parent, id): wx.Frame.__init__(self, parent, id, 'Frame aka window', size=(x, y)) if __name__=='__main__': app=wx.PySimpleApp() frame=mywindow(parent=None,id=-1) frame.Show() app.MainLoop() But, alas, that does not work! Nor does the raw_input() function pass on the value. I keep getting the following error: C:/Python26/pythonw.exe -u "C:/Documents and Settings/Owner/Desktop/wz.py" File "C:/Documents and Settings/Owner/Desktop/wz.py", line 8 wx.Frame.__init__(self, parent, id, 'Frame aka window', size=(x y)) ^ SyntaxError: invalid syntax Thanks for the help!

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  • HttpURLConnection: What's the deal with having to read the whole response?

    - by stormin986
    My current problem is very similar to this one. I have a downloadFile(URL) function that creates a new HttpURLConnection, opens it, reads it, returns the results. When I call this function on the same URL multiple times, the second time around it almost always returns a response code of -1 (But throws no exception!!!). The top answer in that question is very helpful, but there are a few things I'm trying to understand. So, if setting http.keepAlive to false solves the problem, it indicates what exactly? That the server is responding in a way that violates the http protocol? Or more likely, my code is violating the protocol in some way? What will the trace tell me? What should I look for? And what's the deal with this: You need to read everything from error stream. Otherwise, it's going to confuse next connection and that's the cause of -1. Does this mean if the response is some type of error (which would be what response code(s)?), the stream HAS to be fully read? Also, every time I am attempting an http request I am basically creating a new connection, and then disconnect()ing it at the end. However, in my case I'm not getting a 401 or whatever. It's always a 200. But my second connection almost always fails. Does this mean there's some other data I should be reading that I'm not (in a similar manner that the error stream must be fully read)? Please help shed some light on this? I feel like there's some fundamental http protocol understanding I'm missing.

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  • Ruby-on-rails: routing problem: controller action looks for show when it should look for finalize

    - by cbrulak
    background: trying to use the twitter gem for ruby-on-rails. in routes: map.resources :twitter_sessions map.finalize_twitter_sessions 'twitter_sessions/finalize', :controller => 'twitter_sessions', :action => 'finalize' (twitter_sessions is the controller for the twitter sessions in my app). The view has one file new.html.erb and is very simple: <% form_tag(twitter_sessions_path) do |f| %> <p><%= submit_tag "twitter!" %></p> <% end %> and the twitter_sessions_controller.rb: def new end def create oauth.set_callback_url(finalize_twitter_sessions_url) session['rtoken'] = oauth.request_token.token session['rsecret'] = oauth.request_token.secret redirect_to oauth.request_token.authorize_url end def destroy reset_session redirect_to new_session_path end def finalize oauth.authorize_from_request(session['rtoken'], session['rsecret'], params[:oauth_verifier]) profile = Twitter::Base.new(oauth).verify_credentials session['rtoken'] = session['rsecret'] = nil session[:atoken] = oauth.access_token.token session[:asecret] = oauth.access_token.secret sign_in(profile) redirect_back_or root_path end However, after I click the "twitter" button, I get this error: 401 Unauthorized .../gems/oauth-0.3.6/lib/oauth/consumer.rb:200:in `token_request' .../gems/oauth-0.3.6/lib/oauth/consumer.rb:128:in `get_request_token' .../gems/twitter-0.9.2/lib/twitter/oauth.rb:32:in `request_token' .../gems/twitter-0.9.2/lib/twitter/oauth.rb:25:in `set_callback_url' app/controllers/twitter_sessions_controller.rb:7:in `create' If I go to the finalize url, http://localhost:3000/twitter_sessions/finalize, directly, I get this error: Unknown action No action responded to show. Actions: create, destroy, finalize, isLoggedInToBeta, login_required, and new Any ideas? Thanks

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  • F# Async problem.

    - by chrisdew
    Hi, I've written a dummy http server as an exercise in F#. I'm using Mono 2.4.4 on Ubuntu 10.04 x86_64, with MonoDevelop. The following code fails to compile with the error: Error FS0039: The field, constructor or member 'Spawn' is not defined (FS0039) Could someone try this in VisualStudio please, I don't know whether this is a Mono problem, or my problem. I have tried several Async examples from the F# book, and they also all produce similar messages about Async.* methods. Thanks, Chris. #light open System open System.IO open System.Threading open System.Net open System.Net.Sockets open Microsoft.FSharp.Control.CommonExtensions printfn "%s" "Hello World!" let headers = System.Text.Encoding.ASCII.GetBytes("HTTP/1.0 200 OK\r\nContent-Type: text/html; charset=UTF-8\r\nContent-Length: 37\r\nDate: Sun, 13 Jun 2010 05:30:00 GMT\r\nServer: FSC/0.0.1\r\n\r\n") let content = System.Text.Encoding.ASCII.GetBytes("<html><body>Hello World</body></html>") let serveAsync (client : TcpClient) = async { let out = client.GetStream() do! out.AsyncWrite(headers) do! Async.Sleep 3000 do! out.AsyncWrite(content) do out.Close() } let http_server (ip, port) = let server = new TcpListener(IPAddress.Parse(ip),port) server.Start() while true do let client = server.AcceptTcpClient() printfn "new client" Async.Spawn (serveAsync client) http_server ("0.0.0.0", 1234)

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  • problem with MANIFEST.MF in jar

    - by dhananjay
    I have created my jar file in the following folder: /usr/local/bin/niidle.jar And I have one jarfile which is in the following folder /Projects/EnwelibDatedOct13/Niidle/lib/hector-0.6.0-17.jar And this file 'hector-0.6.0-17.jar' I have to include in MANIFEST.MF in jar. And when I mention class path in MANIFEST.MF as follows: Manifest-Version: 1.0 Main-Class: com.ensarm.niidle.web.scraper.NiidleScrapeManager Class-Path: /Projects/EnwelibDatedOct13/Niidle/lib/hector-0.6.0-17.jar When I run this using command: java -jar /usr/local/bin/niidle.jar It works properly.. But I dont want to give full Class-Path name, I have to give Class-Path as follows: Manifest-Version: 1.0 Main-Class: com.ensarm.niidle.web.scraper.NiidleScrapeManager Class-Path: lib/hector-0.6.0-17.jar And when I run this using command: java -jar /usr/local/bin/niidle.jar It is showing error message: Exception in thread "main" java.lang.NoClassDefFoundError: me/prettyprint/hector/api/Serializer at com.ensarm.niidle.web.scraper.NiidleScrapeManager.main(NiidleScrapeManager.java:21) Caused by: java.lang.ClassNotFoundException: me.prettyprint.hector.api.Serializer at java.net.URLClassLoader$1.run(URLClassLoader.java:200) at java.security.AccessController.doPrivileged(Native Method) at java.net.URLClassLoader.findClass(URLClassLoader.java:188) at java.lang.ClassLoader.loadClass(ClassLoader.java:307) at sun.misc.Launcher$AppClassLoader.loadClass(Launcher.java:301) at java.lang.ClassLoader.loadClass(ClassLoader.java:252) at java.lang.ClassLoader.loadClassInternal(ClassLoader.java:320) ... 1 more Please tell me solution for that...

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  • Hi how to show the results in a datatable while we are using yui

    - by udaya
    Hi I am using yui to display a datagrid ... <?php $host = "localhost"; //database location $user = "root"; //database username $pass = ""; //database password $db_name = "cms"; //database name //database connection $link = mysql_connect($host, $user, $pass); mysql_select_db($db_name); //sets encoding to utf8 $result = mysql_query("select dStud_id,dMarkObtained1,dMarkObtained2,dMarkObtained3,dMarkTotal from tbl_internalmarkallot"); //$res = mysql_fetch_array($result); while($res = mysql_fetch_array($result)) { //print_r($res); $JsonVar = json_encode($res); echo "<input type='text' name='json' id='json' value ='$JsonVar'>"; } //print_r (mysql_fetch_array($result)); //echo "<input type='text' name='json' id='json' value ='$JsonVar'>"; ?> <html> <head> <meta http-equiv="content-type" content="text/html; charset=utf-8"> <title>Client-side Pagination</title> <style type="text/css"> body { margin:0; padding:0; } </style> <link rel="stylesheet" type="text/css" href="build/fonts/fonts-min.css" /> <link rel="stylesheet" type="text/css" href="build/paginator/assets/skins/sam/paginator.css" /> <link rel="stylesheet" type="text/css" href="build/datatable/assets/skins/sam/datatable.css" /> <script type="text/javascript" src="build/yahoo-dom-event/yahoo-dom-event.js"></script> <script type="text/javascript" src="build/connection/connection-min.js"></script> <script type="text/javascript" src="build/json/json-min.js"></script> <script type="text/javascript" src="build/element/element-min.js"></script> <script type="text/javascript" src="build/paginator/paginator-min.js"></script> <script type="text/javascript" src="build/datasource/datasource-min.js"></script> <script type="text/javascript" src="build/datatable/datatable-min.js"></script> <script type="text/javascript" src="YuiJs.js"></script> <style type="text/css"> #paginated { text-align: center; } #paginated table { margin-left:auto; margin-right:auto; } #paginated, #paginated .yui-dt-loading { text-align: center; background-color: transparent; } </style> </head> <body class="yui-skin-sam" onload="ProjectDatatable(document.getElementById('json').value);"> <h1>Client-side Pagination</h1> <div class="exampleIntro"> </div> <input type="hidden" id="HfId"/> <div id="paginated"> </div> <script type="text/javascript"> /*YAHOO.util.Event.onDOMReady(function() { YAHOO.example.ClientPagination = function() { var myColumnDefs = [ {key:"dStud_id", label:"ID",sortable:true, resizeable:true, editor: new YAHOO.widget.TextareaCellEditor()}, {key:"dMarkObtained1", label:"Name",sortable:true}, {key:"dMarkObtained2", label:"CycleTest1"}, {key:"dMarkObtained3", label:"CycleTest2"}, {key:"dMarkTotal", label:"CycleTest3"}, ]; var myDataSource = new YAHOO.util.DataSource("assets/php/json_proxy.php?"); myDataSource.responseType = YAHOO.util.DataSource.TYPE_JSON; myDataSource.responseSchema = { resultsList: "records", fields: ["dStud_id","dMarkObtained1","dMarkObtained2","dMarkObtained3","dMarkTotal"] }; var oConfigs = { paginator: new YAHOO.widget.Paginator({ rowsPerPage: 15 }), initialRequest: "results=504" }; var myDataTable = new YAHOO.widget.DataTable("paginated", myColumnDefs, myDataSource, oConfigs); return { oDS: myDataSource, oDT: myDataTable }; }(); });*/ </script> <?php echo "m".$res['dMarkObtained1']; echo "m".$res['dMarkObtained2']; echo "m".$res['dMarkObtained3']; echo "Tm".$res['dMarkTotal']; {?><? }?> </body> </html> </body> </html> This is my page where i am fetching the data's from the database function generateDatatable(target, jsonObj, myColumnDefs, hfId) { var root; for (key in jsonObj) { root = key; break; } var rootId = "id"; if (jsonObj[root].length > 0) { for (key in jsonObj[root][0]) { rootId = key; break; } } YAHOO.example.DynamicData = function() { var myPaginator = new YAHOO.widget.Paginator({ rowsPerPage: 10, template: YAHOO.widget.Paginator.TEMPLATE_ROWS_PER_PAGE, rowsPerPageOptions: [5, 25, 50, 100], pageLinks: 10 }); // DataSource instance var myDataSource = new YAHOO.util.DataSource(jsonObj); myDataSource.responseType = YAHOO.util.DataSource.TYPE_JSON; myDataSource.responseSchema = { resultsList: root, fields: new Array() }; myDataSource.responseSchema.fields[0] = rootId; for (var i = 0; i < myColumnDefs.length; i++) { myDataSource.responseSchema.fields[i + 1] = myColumnDefs[i].key; } // DataTable configuration var myConfigs = { sortedBy: { key: myDataSource.responseSchema.fields[1], dir: YAHOO.widget.DataTable.CLASS_ASC }, // Sets UI initial sort arrow paginator: myPaginator }; // DataTable instance var myDataTable = new YAHOO.widget.DataTable(target, myColumnDefs, myDataSource, myConfigs); myDataTable.subscribe("rowMouseoverEvent", myDataTable.onEventHighlightRow); myDataTable.subscribe("rowMouseoutEvent", myDataTable.onEventUnhighlightRow); myDataTable.subscribe("rowClickEvent", myDataTable.onEventSelectRow); myDataTable.subscribe("checkboxClickEvent", function(oArgs) { var hidObj = document.getElementById(hfId); var elCheckbox = oArgs.target; var oRecord = this.getRecord(elCheckbox); var id = oRecord.getData(rootId); if (elCheckbox.checked) { if (hidObj.value == "") { hidObj.value = id; } else { hidObj.value += "," + id; } } else { hidObj.value = removeIdFromArray("" + hfId, id); } }); myPaginator.subscribe("changeRequest", function() { if (document.getElementById(hfId).value != "") { /*if (document.getElementById("ConfirmationPanel").style.display == 'block') { document.getElementById("ConfirmationPanel").style.display = 'none'; }*/ document.getElementById(hfId).value = ""; } return true; }); myDataTable.handleDataReturnPayload = function(oRequest, oResponse, oPayload) { oPayload.totalRecords = oResponse.meta.totalRecords; return oPayload; } return { ds: myDataSource, dt: myDataTable }; } (); } function removeIdFromArray(values, id) { values = document.getElementById(values).value; if (values.indexOf(',') == 0) { values = values.substring(1); } if (values.indexOf(values.length - 1) == ",") { values = values.substring(0, values.length - 1); } var ids = values.split(','); var rtnValue = ""; for (var i = 0; i < ids.length; i++) { if (ids[i] != id) { rtnValue += "," + ids[i]; } } if (rtnValue.indexOf(",") == 0) { rtnValue = rtnValue.substring(1); } return rtnValue; } function edityuitable() { var ErrorDiv = document.getElementById("ErrorDiv"); var editId=document.getElementById("ctl00_ContentPlaceHolder1_HfId").value; if(editId.length == 0) { ErrorDiv.innerHTML = getErrorMsgStyle("Select a row for edit"); //alert("Select a row for edit"); return false; } else { var editarray = editId.split(","); if (editarray.length != 1) { ErrorDiv.innerHTML = getErrorMsgStyle("Select One row for edit"); //alert("Select One row for edit"); return false; } else if (editarray.length == 1) { return true; } } } function Deleteyuitable() { var ErrorDiv = document.getElementById("ErrorDiv"); var editId=document.getElementById("ctl00_ContentPlaceHolder1_HfId").value; if(editId.length == 0) { ErrorDiv.innerHTML = getErrorMsgStyle("Select a row for Delete"); return false; } else { return true; } } function ProjectDatatable(HfJsonValue){ alert(HfJsonValue); var myColumnDefs = [ {key:"dStud_id", label:"ID", width:150, sortable:true, sortOptions:{defaultDir:YAHOO.widget.DataTable.CLASS_DESC}}, {key:"dMarkObtained1", label:"Marks", width:200, sortable:true, sortOptions:{defaultDir:YAHOO.widget.DataTable.CLASS_DESC}}, {key:"dMarkObtained2", label:"Marks1", width:150, sortable:true, sortOptions:{defaultDir:YAHOO.widget.DataTable.CLASS_DESC}}, {key:"dMarkObtained3", label:"Marks2", width:200, sortable:true, sortOptions:{defaultDir:YAHOO.widget.DataTable.CLASS_DESC}}, {key:"dMarkTotal", label:"Total", width:150, sortable:true, sortOptions:{defaultDir:YAHOO.widget.DataTable.CLASS_DESC}}, {key:"", formatter:"checkbox"} ]; var jsonObj=eval('(' + HfJsonValue + ')'); var target = "paginated"; var hfId = "HfId"; generateDatatable(target,jsonObj,myColumnDefs,hfId) } // JavaScript Document This is my script page when i load the page i do get the first row from the database but the consequtive data's are not displayed in the alert box how can i receieve the data's in the datagrid

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  • Using custom coordinates with QGraphicsScene

    - by Rob
    I am experimenting with a WYSIWYG editor that allows a user to draw shapes on a page and the Qt graphics scene support seems perfect for this. However, instead of working in pixels I want all my QGraphicsItem objects to work in tenths of a millimetre but I don't know how to achieve this. For example: // Create a scene that is the size if an A4 page (2100 = 21cm, 2970 = 29.7cm) QGraphicsScene* scene = new QGraphicsScene(0, 0, 2100, 2970); // Add a rectangle located 1cm across, 1cm down, 5cm wide and 2cm high QGraphicsItem* item = scene->addRect(100, 100, 500, 200); ... QGraphicsView* view = new QGraphicsView(scene); setCentralWidget(view); Now, when I display the scene above I want the shapes to appear at correct size for the screen DPI. Is this simply a case of using QGraphicsView::scale or do I have to do something more complicated? Note that if I was using a custom QWidget instead then I would use QPainter::setWindow and QPainter::setViewport to create a custom mapping mode but I can't see how to do this using the graphics scene support.

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  • pie chart (php graph lib) problem !

    - by gin
    i'm using phpgraphlib for creating charts i tried one of the example of the pie charts ex (with lil bit pf changes) which is : include('phpgraphlib.php'); include('phpgraphlib_pie.php'); $graph = new PHPGraphLibPie(400, 200); $data = array("CBS" = 0, "NBC" = 1); $graph-addData($data); $graph-setTitle('8/29/07 Top 5 TV Networks Market Share'); $graph-setLabelTextColor('50,50,50'); $graph-setLegendTextColor('50,50,50'); $graph-createGraph(); ? and whether i put $data = array("CBS" = 0, "NBC" = 1); or $data = array("CBS" = 1, "NBC" = 0); the pie chart have the same color.. shouldn't the whole pie/slice suppose to be colored with some color (i.e. blue) if ("CBS" = 0, "NBC" = 1) , while if ("CBS" = 1, "NBC" = 0) it should be colored with other color (i.e. red)/? is there any way to fix it? i would really appreciate any help ,,

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  • Unit testing and mocking email sender in Python with Google AppEngine

    - by CVertex
    I'm a newbie to python and the app engine. I have this code that sends an email based on request params after some auth logic. in my Unit tests (i'm using GAEUnit), how do I confirm an email with specific contents were sent? - i.e. how do I mock the emailer with a fake emailer to verify send was called? class EmailHandler(webapp.RequestHandler): def bad_input(self): self.response.set_status(400) self.response.headers['Content-Type'] = 'text/plain' self.response.out.write("<html><body>bad input </body></html>") def get(self): to_addr = self.request.get("to") subj = self.request.get("subject") msg = self.request.get("body") if not mail.is_email_valid(to_addr): # Return an error message... # self.bad_input() pass # authenticate here message = mail.EmailMessage() message.sender = "[email protected]" message.to = to_addr message.subject = subj message.body = msg message.send() self.response.headers['Content-Type'] = 'text/plain' self.response.out.write("<html><body>success!</body></html>") And the unit tests, import unittest from webtest import TestApp from google.appengine.ext import webapp from email import EmailHandler class SendingEmails(unittest.TestCase): def setUp(self): self.application = webapp.WSGIApplication([('/', EmailHandler)], debug=True) def test_success(self): app = TestApp(self.application) response = app.get('http://localhost:8080/[email protected]&body=blah_blah_blah&subject=mySubject') self.assertEqual('200 OK', response.status) self.assertTrue('success' in response) # somehow, assert email was sent

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  • Why does adding Crossover to my Genetic Algorithm gives me worse results?

    - by MahlerFive
    I have implemented a Genetic Algorithm to solve the Traveling Salesman Problem (TSP). When I use only mutation, I find better solutions than when I add in crossover. I know that normal crossover methods do not work for TSP, so I implemented both the Ordered Crossover and the PMX Crossover methods, and both suffer from bad results. Here are the other parameters I'm using: Mutation: Single Swap Mutation or Inverted Subsequence Mutation (as described by Tiendil here) with mutation rates tested between 1% and 25%. Selection: Roulette Wheel Selection Fitness function: 1 / distance of tour Population size: Tested 100, 200, 500, I also run the GA 5 times so that I have a variety of starting populations. Stop Condition: 2500 generations With the same dataset of 26 points, I usually get results of about 500-600 distance using purely mutation with high mutation rates. When adding crossover my results are usually in the 800 distance range. The other confusing thing is that I have also implemented a very simple Hill-Climbing algorithm to solve the problem and when I run that 1000 times (faster than running the GA 5 times) I get results around 410-450 distance, and I would expect to get better results using a GA. Any ideas as to why my GA performing worse when I add crossover? And why is it performing much worse than a simple Hill-Climb algorithm which should get stuck on local maxima as it has no way of exploring once it finds a local max?

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  • Use a vector to index a matrix without linear index

    - by David_G
    G'day, I'm trying to find a way to use a vector of [x,y] points to index from a large matrix in MATLAB. Usually, I would convert the subscript points to the linear index of the matrix.(for eg. Use a vector as an index to a matrix in MATLab) However, the matrix is 4-dimensional, and I want to take all of the elements of the 3rd and 4th dimensions that have the same 1st and 2nd dimension. Let me hopefully demonstrate with an example: Matrix = nan(4,4,2,2); % where the dimensions are (x,y,depth,time) Matrix(1,2,:,:) = 999; % note that this value could change in depth (3rd dim) and time (4th time) Matrix(3,4,:,:) = 888; % note that this value could change in depth (3rd dim) and time (4th time) Matrix(4,4,:,:) = 124; Now, I want to be able to index with the subscripts (1,2) and (3,4), etc and return not only the 999 and 888 which exist in Matrix(:,:,1,1) but the contents which exist at Matrix(:,:,1,2),Matrix(:,:,2,1) and Matrix(:,:,2,2), and so on (IRL, the dimensions of Matrix might be more like size(Matrix) = (300 250 30 200) I don't want to use linear indices because I would like the results to be in a similar vector fashion. For example, I would like a result which is something like: ans(time=1) 999 888 124 999 888 124 ans(time=2) etc etc etc etc etc etc I'd also like to add that due to the size of the matrix I'm dealing with, speed is an issue here - thus why I'd like to use subscript indices to index to the data. I should also mention that (unlike this question: Accessing values using subscripts without using sub2ind) since I want all the information stored in the extra dimensions, 3 and 4, of the i and jth indices, I don't think that a slightly faster version of sub2ind still would not cut it..

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