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  • Issues with cross-domain uploading

    - by meder
    I'm using a django plugin called django-filebrowser which utilizes uploadify. The issue I'm having is that I'm hosting uploadify.swf on a remote static media server, whereas my admin area is on my django server. At first, the browse button wouldn't invoke my browser's upload. I fixed this by modifying the sameScriptAccess to always instead of sameDomain. Now the progress bar doesn't move at all, I probably have to enable some server setting for cross domain file uploading, or most likely actually host a separate upload script on my media server. I thought I could solve this by adding a crossdomain.xml to enable any site at the root of both servers, but that doesn't seem to solve it. $(document).ready(function() { $('#id_file').uploadify({ 'uploader' : 'http://media.site.com:8080/admin/filebrowser/uploadify/uploadify.swf', 'script' : '/admin/filebrowser/upload_file/', 'scriptData' : {'session_key': '...'}, 'checkScript' : '/admin/filebrowser/check_file/', 'cancelImg' : 'http://media.site.com:8080/admin/filebrowser/uploadify/cancel.png', 'auto' : false, 'folder' : '', 'multi' : true, 'fileDesc' : '*.html;*.py;*.js;*.css;*.jpg;*.jpeg;*.gif;*.png;*.tif;*.tiff;*.mp3;*.mp4;*.wav;*.aiff;*.midi;*.m4p;*.mov;*.wmv;*.mpeg;*.mpg;*.avi;*.rm;*.pdf;*.doc;*.rtf;*.txt;*.xls;*.csv;', 'fileExt' : '*.html;*.py;*.js;*.css;*.jpg;*.jpeg;*.gif;*.png;*.tif;*.tiff;*.mp3;*.mp4;*.wav;*.aiff;*.midi;*.m4p;*.mov;*.wmv;*.mpeg;*.mpg;*.avi;*.rm;*.pdf;*.doc;*.rtf;*.txt;*.xls;*.csv;', 'sizeLimit' : 10485760, 'scriptAccess' : 'always', //'scriptAccess' : 'sameDomain', 'queueSizeLimit' : 50, 'simUploadLimit' : 1, 'width' : 300, 'height' : 30, 'hideButton' : false, 'wmode' : 'transparent', translations : { browseButton: 'BROWSE', error: 'An Error occured', completed: 'Completed', replaceFile: 'Do you want to replace the file', unitKb: 'KB', unitMb: 'MB' } }); $('input:submit').click(function(){ $('#id_file').uploadifyUpload(); return false; }); }); The page I'm viewing this on is http://site.com/admin/filebrowser/browse on port 80.

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  • Model validation with enumerations

    - by Robert Koritnik
    I'm using DataAnnotations attributes to validate my model objects. My model class looks similar to this: public class MyModel { [Required] public string Title { get; set; } [Required] public List<User> Editors { get; set; } } public class User { public int Id { get; set; } [Required] public string FullName { get; set; } [Required] [DataType(DataType.Email)] public string Email { get; set; } } My controller action looks like: public ActionResult NewItem(MyModel data) { //... } User is presented with a view that has a form with: a text box with dummy name where users enter user's names. For each user they enter, there's a client script coupled with ajax that creates an <input type="hidden" name="data.Editors[0].Id" value="userId" /> for each user entered (enumeration index is therefore not always 0 as written here), so default model binder is able to consume and bind the form without any problems. a text box where users enter the title Since I'm using Asp.net MVC 2 RTM which does model validation instead of input validation I don't know how to avoid validation errors. The thing is I have to use BindAttribute on my controller action. I would have to either provide a white or a black list of properties. It's always a better practice to provide a white list. It's also more future proof. The problem My form works fine, but I get validation errors about user's FullName and Email properties since they are not provided. I also shouldn't feed them to the client (via ajax when user enters user data), because email is personal contact data and is not shared between users. If there was just a single user reference on MyModel I would write [Bind(Include = "Title, Editor.Id")] But I have an enumeration of them. How do I provide Bind white list to work with my model?

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  • emacs indentation problem

    - by Gauthier
    I'm really trying to switch to emacs, but learning to setup the environment is a real pain. Everybody says it's worth it, so I just continue. I want my c code to be implemented that way: if(asdf) { asdr = 1; } Depending on the current standard (I know, don't get me started), could be: if(asdf) { asdr = 1; } I can't seem to change the indentation size from 2, it always looks like the GNU standard: if(asdf) { asdr = 1; } , which I dislike. Here is what I have put in my .emacs: ; Warn in C for while();, if(x=0), ... (global-cwarn-mode 1) ; no electric mode in c (c-toggle-electric-state -1) ; indent the current line only if the cursor is at the beginning of the line (setq-default c-tab-always-indent nil) (setq-default c-indent-level 4) (setq-default tab-width 4) (setq-default indent-tabs-mode nil) (setq-default c-basic-offset 4) (setq-default c-basic-indent 4) ; These commands I read about on the web, but they don't work? ;(highlight-tabs) ;(highlight-trailing_whitespace) This did not help, I have still the GNU indent. Anyone?

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  • ASP.NET Session State Timeout Problem

    - by user314827
    I am trying to detect a session state timeout in my asp.net application and am unable to do so. I have a base class that derives from System.Web.UI.Page as follows:- public class BasePageSessionExpire : Page { override protected void OnInit(EventArgs e) { base.OnInit(e); if (Context.Session != null) { if (Session.IsNewSession) { string szCookieHeader = Request.Headers["Cookie"]; if ((null != szCookieHeader) && (szCookieHeader.IndexOf("ASP.NET_SessionId") > 0)) { Session.Abandon(); Response.Redirect("~/SessionExpired.aspx",true); } } } } } All the pages I need session state checking on derive from this base class instead of "System.Web.UI.Page". Also, all these pages have EnableSessionState="True". I have a blank Session_Start() method in my global.asax file if that is relevant at all. For some reason after the first request, the "Session.IsNewSession" property is always false. It is true only for the first request and then is always false. I have my timeout set to 1 minute. The session never seems to timeout. What am I missing here ? Thanks in advance.

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  • Groovy XmlSlurper

    - by Langali
    I am trying to parse a html file using Groovy XmlSlurper. <div id="users"> <h1>Name: Joe Doe</h1> <div id="user"> <div id="user_summary">Game: 1</div> <object width="640" height="385"><param name="movie" value="http://www.youtube.com/v/DApLO_HDhD0&hl=en_US&fs=1&"></param><param name="allowFullScreen" value="true"></param><param name="allowscriptaccess" value="always"></param><embed src="http://www.youtube.com/v/DApLO_HDhD0&hl=en_US&fs=1&" type="application/x-shockwave-flash" allowscriptaccess="always" allowfullscreen="true" width="640" height="385"></embed></object> </div> <div id="user"> <div id="user_summary">Game: 2</div> ... </div> <div id="user"> .... </div> </div> <div id="featured_users"> <div id="user"> ... </div> <div id="user"> .... </div> </div> I need to grab each user (and not featured user) with his name, summary and object tag (which the video embed code). Anybody wanna give it a shot? Here's a start: def parser =new XmlSlurper(new org.ccil.cowan.tagsoup.Parser()) def response = parser.parseText(htmlString) def users = response.depthFirst().collect { it }.findAll { it.@id == "users" } users.each { ...... } I cant seem to be able to get much further:

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  • custom httphandler in asp.net cannot get request querystring?

    - by Sander
    i've been trying to get this to work. its basicly a way to have certain MVC pages work within a webforms cms (umbraco) someone tried it before me and had issues with MVC2.0 (see here), i read the post, did what was announced there, but with or without that code, i seem to get stuck on a different matter. it seems like, if i call an url, it fires the handler, but fails to request the querystring passed, the variable originalPath is always empty, for example i call this url: http://localhost:8080/mvc.ashx?mvcRoute=/home/RSVPForm the handler is supposed to get the mvcRoute but it is always empty. thus gets rewritten to a simple / and then returns resource cannot be found error. here is the code i use now public void ProcessRequest(HttpContext httpContext) { string originalPath = httpContext.Request.Path; string newPath = httpContext.Request.QueryString["mvcRoute"]; if (string.IsNullOrEmpty(newPath)) newPath = "/"; HttpContext.Current.RewritePath(newPath, false); IHttpHandler ih = (IHttpHandler)new MvcHttpHandler(); ih.ProcessRequest(httpContext); HttpContext.Current.RewritePath(originalPath, false); } i would like some new input on this as i'm staring myself blind on such a simple issue, while i thought i would have more problems with mvc itself :p Edit have no time to investigate, but after copying the site over to different locations, using numerous web.config changes (unrelated to this error but was figuring other things out) this error seems to have solved itself. so its no longer an issue, however i have no clue as to what exactly made this to work again.

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  • Java Classpath Issues with Webservices(CXF) and Jboss

    - by JohnC
    I am using CXF(which autogenerates my webservices in my pom.xml from my wsdl) with JBoss(eclipse ide), and I am having some trouble accessing the webservice from my web application. I found this resource: http://blog.progs.be/?p=92 but I am having a really hard time using WSDL_LOCATION = cl.getResource( "my/progam/pack/wsdl/myService.wsdl" ); to work properly in my code. I have my wsdls located in src/main/wsdl and have added the following line to the .classpath file: classpathentry kind="src" path="src/main/wsdl" I also created the folders my,program,pack,wsdl and dropped my wsdls into that location, so it is accessible. However, the classloader.getResource call always returns null no matter what. When I specify getResource( "/wsdl/myService.wsdl" ) it does not return null, but I believe it looks at the full file path and not what I need (considering part of the URL contains the path to the wsdl file all the way through the jboss server directory and includes the WEB-INF dir. Is my .classpath file set up incorrectly or am I missing something else? if the WSDL Location is not correct it always throws a ClassCast Exception like so: java.lang.ClassCastException: org.apache.cxf.jaxws.ServiceImpl at javax.xml.ws.Service.(Service.java:81)

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  • How do I keep a CALayer, sublayer of a CATiledLayer, from changing it's scale after a zoom ?

    - by David
    I have a CATiledLayer that is used to display a PDF page (this CATiledLayer is the layer type of my UIView which is a subview of a UIScrollView). I want to add overlay markers on this page. So I add a sublayer to my CATiledLayer. This sublayer again hosts the different marker's layers and acts as a grouping layer. So graphically, I have: (keep in mind that I have multiple markers which are CALayers also, this is ascii art after all) pdf page (CATiledLayer) ---------------------- | CALayer | | +---------+ | | | +----+ | | | | |mker| | | | | +----+ | | | +---------+ | | | ---------------------- I have set up the canonical drawLayer:inContext: in my view for drawing the pdf. When I zoom to have more detail, the pdf gets rendered correctly, but the markers get scaled. No matter what I do to the bounds of the CALayer, my markers always become bigger and appear jagged. I would like to have the markers always the same size, as when they were initialized and first shown when the view was drawn. Is this possible ? or am I using a wrong approach ? Should I do special drawing for my contained CALayer in the drawLAyer:inContext: message ? As you see, there are things that I am missing to resolve my problem. Thank you for any help you provide.

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  • What is the most important thing you weren't taught in school?

    - by Alexandre Brisebois
    What is the most important thing you weren't taught in school? What topics are missing from the CS/IS education? Posted so far How to sell an idea Principles: Often, good enough is better than perfect. Making mistakes is actually a Good Thing™ -- as long as they're new mistakes. If a user can break your code they will. In the Real World™ they're all open-book exams Self confidence is way more important in getting ahead than intelligence. Always prefer simplicity over complexity. The best code is the code that you don't write. You never know when you'll meet someone again ... or where. It's always worthwhile to treat people with respect and kindness. Be aware of what you don't know and don't be afraid to ask questions when you need to Missing knowledge: How to communicate effectively. Lack of source control Lack of Softskills experience How to productize code How to write secure code How to formulate problems How to self-measurement. To evaluate ones true competences and market worth. How to debug code How important is backup How to read code on a large scale (being able to adapt and build upon existing projects) Good Regular expressions comprehension How to teach others effectively TDD/Unit testing Critical thinking How to integrate different skills and languages in a single project

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  • Jsf RichFaces autocomplete : get the String for autocomplete- method()

    - by JavaNullPointer
    Part of my xhmtl-Page: <rich:autocomplete autocompleteMethod="#{autocompletMit.searchbyName()}" mode="cachedAjax" fetchValue="#{controller.mitarbeiter.mitarbeiterName}" autocompleteList="#{autocompletMit.autocompleteList}" minChars="1" autofill="true" var="it" > <h:outputText value="#{it.mitarbeiterName}" style="font-weight:bold"/> </rich:autocomplete> Bean for my Autocomplete: @ManagedBean(name = "autocompletMit") @RequestScoped public class AutoCompleteMitarbeiter implements Serializable { @EJB private Transaktionssteuerung transakt; private List<String> autocompleteList = new ArrayList<String>(); String nameSearch; public List<String> searchbyName(Object o) { String test = (String) o; //always get here a NullPointerException List<Mitarbeiter> alleMitarbeiter = transakt.alleMitarbeiter(); for (Iterator<Mitarbeiter> it = alleMitarbeiter.iterator(); it.hasNext();) { if (it.next().getMitarbeiterName().startsWith(test)) { autocompleteList.add(it.next().getMitarbeiterName()); } } return autocompleteList; } I always get a NullPointerException for String test = (String) o; I dont know how to get the StringInput correctly from </rich:autocomplete>-Input....

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  • Ideas for networking project

    - by Chris Thompson
    Hi all, I'm a graduating senior in computer science taking a computer networks class and I'm trying to figure out my final project. I normally am not at a loss for ideas but be it senioritis or straight burn out, I've got nothing. I've done some fun stuff in the past, but I just can't seem to come up with a good idea. Given the mass of brilliance on this site, I figured it would be a good place to request some suggestions. To give you an idea of scope, it's due in about a month and I would consider myself proficient with mobile architectures like Android (although I have no iPhone experience) along with Java, C++, etc. If you can suggest an idea, I'd be happy to make it work in whatever language I know. Like I said, I'm a senior and will be graduating so I'd rather not take on something that would kill me... Also, I'd be happy to make it open source if it's an idea you'd always wanted to work on but didn't have the time to start. Thanks in advance for the help! Chris Edit 1: Thanks so much for the suggestions everyone! Unfortunately I've actually already written a chat client (for a network security class) and I think I'd run into some honor code issues if I did that again, although that's always a great option. I like the game idea and that's actually something I've never attempted before (in any capacity) although given that, I'm a little scared about time...

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  • Help with route rewrite in asp.net mvc

    - by NachoF
    Im having a really hard time understanding routing. Please help me with this problem. Each of my controllers have these three actions right now Users have Index, Create and Edit Locations have Index, Create and Edit Companies have Index, Create and Edit The thing is, it all gets done through ajax. I have jquery ui tabs with two tabs for each, Create and Edit So the Index method is always the one that gets called for action links. and inside this main view is that you can call(by clicking on the tab icon) the other methods that return an ajax view that gets output into the jqeury tab (I hope thats clear) I have a sidebar with links to the controllers. and to specific methods of these controllers. The wanted behavior is that it should actually go into the Index Method and then with some logic autoload the wanted tab. It all works just fine right now. But my urls are horrible. To get to the create method for Users I have to go this url http://localhost/Users/Index/1 http://localhost/Users/Index/2 I want the behavior of these links to be remapped to these links http://localhost/Users/Create http://localhost/Users/Edit So even though it seems as if you are calling the Create method of the controller you are actualling always calling the Index Method.... (I know how to transform Create into "1" and Edit into two, so dont worry about that part Hope thats clear. Thanks in advance Edit: Just realized that this might not be possible cause then when I actually need to call the methods (with ajax) it wont know what to do.... am I correct?

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  • SQL - Count grouped entries and then get the max values grouped by date

    - by Marcus
    hello, I am out of any logic how to write the right sql statment. I've got a sqlite table holding every played track in a row with played date/time Now I will count the plays of all artists, grouped by day and then find the artist with the max playcount per day. I used this Query SELECT COUNT(ARTISTID) AS artistcount, ARTIST AS artistname,strftime('%Y-%m-%d', playtime) AS day_played FROM playcount GROUP BY artistname to get this result "93"|"The Skygreen Leopards"|"2010-06-16" "2" |"Arcade Fire" |"2010-06-15" "2" |"Dead Kennedys" |"2010-06-15" "2" |"Wolf People" |"2010-06-15" "3" |"16 Horsepower" |"2010-06-15" "3" |"Alela Diane" |"2010-06-15" "46"|"Motorama" |"2010-06-15" "1" |"Ariel Pink's Haunted" |"2010-06-14" I tried then to query this virtual table but I always get false results in artistname. SELECT MAX(artistcount), artistname , day_played FROM ( SELECT COUNT(ARTISTID) AS artistcount, ARTIST AS artistname,strftime('%Y-%m-%d', playtime) AS day_played FROM playcount GROUP BY artistname ) GROUP BY strftime('%Y-%m-%d',day_played) result in this "93"|"lilium" |"2010-06-16" "46"|"Wolf People"|"2010-06-15" "30"|"of Montreal"|"2010-06-14" but the artist name is false. I think through the grouping by day, it just use the last artist, or so. I tested stuff like INNER JOIN or GROUP BY ... HAVING in trial and error, I read examples of similar issues but always get lost in columnnames and stuff (I am a bit burned out) I hope someone can give me a hint. thanks m

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  • Programmatically controlling a Dojo Accordion

    - by prule
    I have a dijit.layout.AccordionContainer on my page which is defined in the html and created when dojo parses the page on load. Then, as the user interacts with the page I use Ajax to retrieve data and programmatically populate the container (removing existing items first). To illustrate my issue simply, here is some code that doesn't work: function doit() { var accordion = dijit.byId("accordionShell"); accordion.getChildren().each(function(item) { accordion.removeChild(item); }); for (i = 1; i < 5; i++) { var d = new dijit.layout.AccordionPane({title:'hello', content:'world'}); accordion.addChild(d); } } This fails, because only the first item in the accordian is visible. I think the others actually exist, but they are not visible so you can't do anything. I've managed to get around it by: Always ensuring there is 1 item in the accordian (so I never remove the first child) Call accordian.layout() after changing the contents So, this code "works" as long as you always want to see the first item, and don't actually expand any but the first one: function doit() { var accordion = dijit.byId("accordionShell"); var i = 0; accordion.getChildren().each(function(item) { if (i > 0) accordion.removeChild(item); i++; }); for (i = 1; i < 5; i++) { var d = new dijit.layout.AccordionPane({title:'hello', content:'world'}); accordion.addChild(d); } accordion.layout(); } I am using Dojo 1.2.0 - Anyone know what I am doing wrong?

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  • What's the strangest corner case you've seen in C# or .NET?

    - by Jon Skeet
    I collect a few corner cases and brain teasers and would always like to hear more. The page only really covers C# language bits and bobs, but I also find core .NET things interesting too. For example, here's one which isn't on the page, but which I find incredible: string x = new string(new char[0]); string y = new string(new char[0]); Console.WriteLine(object.ReferenceEquals(x, y)); I'd expect that to print False - after all, "new" (with a reference type) always creates a new object, doesn't it? The specs for both C# and the CLI indicate that it should. Well, not in this particular case. It prints True, and has done on every version of the framework I've tested it with. (I haven't tried it on Mono, admittedly...) Just to be clear, this is only an example of the kind of thing I'm looking for - I wasn't particularly looking for discussion/explanation of this oddity. (It's not the same as normal string interning; in particular, string interning doesn't normally happen when a constructor is called.) I was really asking for similar odd behaviour. Any other gems lurking out there?

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  • Embedding a Media manager video in the article in Joomla1.5

    - by Aruna
    Hi, I am working on Joomla currently for the past one month. I am trying to embed a video stream in my article page like inside the content i am trying to have video stream like youtube video. I have uploaded a video in my media manager. And i dono how to stream that video in my page. Please help me in doing so.. EDIT: FOr an youtube video i have used like <object width='425' height='344'> <param name='movie' value='http://www.youtube.com/v/hQVTIJBZook&hl=en&fs=1'> <param name='type' value='application/x-shockwave-flash'> <param name='allowfullscreen' value='true'> <param name='allowscriptaccess' value='always'> <param name="wmode" value="opaque" /> <embed width='425' height='344' src='http://www.youtube.com/v/hQVTIJBZook&hl=en&fs=1' type='application/x-shockwave-flash' allowfullscreen='true' allowscriptaccess='always' wmode="opaque"> </embed> </object> But i am having the video in my http://www.abc.com/images/abc.flv i am not able to know of how to use this video ?? where http://www.abc.com is my website running in Joomla1.5 . Please help me..

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  • How to debug jQuery ajax POST to .NET webservice

    - by Nick
    Hey all. I have a web service that I have published locally. I wrote an HTML page to test the web service. The webservice is expecting a string that will be XML. When I debug the web service from within VS everything works great. I can use FireBug and see that my web service is indeed being hit by they AJAX call. After deploying the web service locally to IIS it does not appear to be working. I need to know the best way to trouble shoot this problem. My AJAX js looks like this: function postSummaryXml(data) { $.ajax({ type: 'POST', url: 'http://localhost/collection/services/datacollector.asmx/SaveSummaryDisplayData', data: { xml: data }, error: function(result) { alert(result); }, success: function(result) { alert(result); } }); The web method looks like so: [WebMethod] public string SaveSummaryDisplayData(string xml) { XmlDocument xmlDocument = new XmlDocument(); xmlDocument.LoadXml(xml); XmlParser parser = new XmlParser(xmlDocument); IModel repository = new Repository(); if(repository.AddRecord("TestData",parser.TestValues)) { return "true"; } return "false"; } } I added the return string to the web method in an attempt to ensure that the web-service is really hit from the ajax. The problem is this: In FF the 'Success' function is always called yet the result is always 'NULL'. And the web method does not appear to have worked (no data saved). In IE the 'Error' function is called and the response is server error: 500. I think (believe it or not) IE is giving me a more accurate indication that something is wrong but I cannnot determine what the issue is. Can someone please suggest how I should expose the specific server error message? Thanks for the help!

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  • Multiple sendto() using UDP socket

    - by ereOn
    Hi, I have a network software which uses UDP to communicate with other instances of the same program. For different reasons, I must use UDP here. I recently had problems sending huge ammounts of data over UDP and had to implement a fragmentation system to split my messages into small data chunks. So far, it worked well but I now encounter an issue when I have to send a lot of data chunks. I have the following algorithm: Split message into small data chunks (around 1500 bytes) Iterate over the data chunks list and for each, send it using sendto() However, when I send a lot of data chunks, the receiver only gets the first 6 messages. Sometimes it misses the sixth and receives the seventh. It depends. Anyway, sendto() always indicates success. This always happen when I test my software over a loopback interface (127.0.0.1) but never over my LAN network. If I add something like std::cout << "test" << std::endl; between the sendto() then every frame is received. I am aware that UDP allows packet loss and that my frames might be loss for a lot of reasons and I suppose it has to do with the rate I am sending the data chunks at. What would be the right approach here ? Implementing some acknowledgement mechanism (just like TCP) seems overkill. Adding some arbitrary waiting time between the sendto() is ugly and will probably decrease performance. Increasing (if possible) the receiver UDP internal buffer ? I don't even know if this is possible. Something else ? I really need your advices here. Thank very much.

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  • C# i am trying to make a zoom effect

    - by thrillercd
    Pls help! i am trying to make a zoom effect on a picturebox by mouse wheel.Everything is ok except that when i use mouse middle button to zoom in or zoom out it is ok but it does not zoom in or zoom out the point which the mouse cursor on.when i zoom in the point what i want it always slide .Pls help me to add a snippet code to make it right working. Here is my code. I am trying to make a zoom effect on a picturebox by mouse wheel. Everything is ok except that when I use mouse middle button to zoom in or zoom out it is ok but it does not zoom in or zoom out the point which the mouse cursor on. When I zoom in the point what I want it always slide. Please help me to add a snippet code to make it right working. Here is my code: int i = 5; int index = 10; private double[] zoomfactor = { .25, .33, .50, .66, .80, 1, 1.25, 1.5, 2.0, 2.5, 3.0 }; private void Zoom(int i) { double new_Zoom = zoomfactor[i]; imgBox.Width = Convert.ToInt32(imgBox.Image.Width * new_Zoom); imgBox.Height = Convert.ToInt32(imgBox.Image.Height * new_Zoom); } private void On_wheel(object sender, System.Windows.Forms.MouseEventArgs e) { i = i + e.Delta / 120; if (i < 0) { i = 0; } else { if (i <= index) i = i; else i = index; } Zoom(i); }

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  • Is any solution the correct solution?

    - by Eli
    I always think to myself after solving a programming challenge that I have been tied up with for some time, "It works, thats good enough". I don't think this is really the correct mindset, in my opinion and I think I should always be trying to code with the greatest performance. Anyway, with this said, I just tried a ProjectEuler question. Specifically question #2. How could I have improved this solution. I feel like its really verbose. Like I'm passing the previous number in recursion. <?php /* Each new term in the Fibonacci sequence is generated by adding the previous two terms. By starting with 1 and 2, the first 10 terms will be: 1, 2, 3, 5, 8, 13, 21, 34, 55, 89, ... Find the sum of all the even-valued terms in the sequence which do not exceed four million. */ function fibonacci ( $number, $previous = 1 ) { global $answer; $fibonacci = $number + $previous; if($fibonacci > 4000000) return; if($fibonacci % 2 == 0) { $answer = is_numeric($answer) ? $answer + $fibonacci : $fibonacci; } return fibonacci($fibonacci, $number); } fibonacci(1); echo $answer; ?> Note this isn't homework. I left school hundreds of years ago. I am just feeling bored and going through the Project Euler questions

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  • Why is Available Physical Memory (dwAvailPhys) > Available Virtual Memory (dwAvailVirtual) in call G

    - by Andrew
    I am playing with an MSDN sample to do memory stress testing (see: http://msdn.microsoft.com/en-us/magazine/cc163613.aspx) and an extension of that tool that specifically eats physical memory (see http://www.donationcoder.com/Forums/bb/index.php?topic=14895.0;prev_next=next). I am obviously confused though on the differences between Virtual and Physical Memory. I thought each process has 2 GB of virtual memory (although I also read 1.5 GB because of "overhead". My understanding was that some/all/none of this virtual memory could be physical memory, and the amount of physical memory used by a process could change over time (memory could be swapped out to disc, etc.)I further thought that, in general, when you allocate memory, the operating system could use physical memory or virtual memory. From this, I conclude that dwAvailVirtual should always be equal to or greater than dwAvailPhys in the call GlobalMemoryStatus. However, I often (always?) see the opposite. What am I missing. I apologize in advance if my question is not well formed. I'm still trying to get my head around the whole memory management system in Windows. Tutorials/Explanations/Book recs are most welcome! Andrew

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  • Should all public methods of an API be documented?

    - by cynicalman
    When writing "library" type classes, is it better practice to always write markup documentation (i.e. javadoc) in java or assume that the code can be "self-documenting"? For example, given the following method stub: /** * Copies all readable bytes from the provided input stream to the provided output * stream. The output stream will be flushed, but neither stream will be closed. * * @param inStream an InputStream from which to read bytes. * @param outStream an OutputStream to which to copy the read bytes. * @throws IOException if there are any errors reading or writing. */ public void copyStream(InputStream inStream, OutputStream outStream) throws IOException { // copy the stream } The javadoc seems to be self-evident, and noise that just needs to be updated if the funcion is changed at all. But the sentence about flushing and not closing the stream could be valuable. So, when writing a library, is it best to: a) always document b) document anything that isn't obvious c) never document (code should speak for itself!) I usually use b), myself (since the code can be self-documenting otherwise)...

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  • Preventing iframe caching in browser

    - by Zarjay
    How do you prevent Firefox and Safari from caching iframe content? I have a simple webpage with an iframe to a page on a different site. Both the outer page and the inner page have HTTP response headers to prevent caching. When I click the "back" button in the browser, the outer page works properly, but no matter what, the browser always retrieves a cache of the iframed page. IE works just fine, but Firefox and Safari are giving me trouble. My webpage looks something like this: <html> <head><!-- stuff --></head> <body> <!-- stuff --> <iframe src="webpage2.html?var=xxx" /> <!-- stuff --> </body> </html> The var variable always changes. Despite the fact that the URL of the iframe has changed (and thus, the browser should be making a new request to that page), the browser just fetches the cached content. I've examined the HTTP requests and responses going back and forth, and I noticed that even if the outer page contains <iframe src="webpage2.html?var=222" />, the browser will still fetch webpage2.html?var=111. Here's what I've tried so far: Changing iframe URL with random var value Adding Expires, Cache-Control, and Pragma headers to outer webpage Adding Expires, Cache-Control, and Pragma headers to inner webpage I'm unable to do any JavaScript tricks because I'm blocked by the same-origin policy. I'm running out of ideas. Does anyone know how to stop the browser from caching the iframed content?

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  • iPhone - Failed to save the videos metadata to the filesystem.

    - by cameron
    My application uses the UIImagePicker to allow the user to use the camera and capture a photo to edit/etc. I am getting the error message below: 2010-02-03 10:41:24.018 LivingRoom[5333:5303] Failed to save the videos metadata to the filesystem. Maybe the information did not conform to a plist. Program received signal: “EXC_BAD_ACCESS”. A search in Google brings up a number of threads in various forums, with no ultimate response/root cause/suggestions on how to fix/debug. An example is the thread below with code which is very similar to my app: http://groups.google.com/group/iphonesdkdevelopment/browse_thread/thread/6b7b396c62bef398 The error disappears for a while (10 tests in a row, no errors) if I reboot the iPhone. I have not been able to determine what makes it reoccur after a reboot, but it does. I am not using the video source and the fact that a reboot solves the problem for a while points to some sort of mem leak (perhaps?). The problem always shows up on both the iPhone (even after the reboot) and the simulator when choosing a photo from the album, but the app does not crash on the iPhone or the simulator. The same app with exact code did not have the error message when compiled using SDK 3.0 (last August/September). But 3.1.x has always produced the error message, which means that once a week or so the iPhone needs to be rebooted for the error to disappear. The users are not happy with that solution any longer!! Any suggestion/clues would be greatly appreciated.

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  • Windows Azure DownloadtoStream EOF error

    - by david
    Hello, I've been using Windows Azure to create a document management system, and things have gone well so far. I've been able to upload and download files to the BLOB storage through an asp.net front end. What I'm attempting to do now is allow users to upload a .zip file, and then take the files out of that .zip and save them as individual files. Problem is, I'm getting "ZipException was unhandled" "EOF in header" and I don't know why. I'm using the ICSharpCode.SharpZipLib library which I've used for many other tasks and its worked great. Here's the basic code: CloudBlob ZipFile = container.GetBlobReference(blobURI); MemoryStream MemStream = new MemoryStream(); ZipFile.DownloadToStream(MemStream); .... while ((theEntry = zipInput.GetNextEntry()) != null) and it's on the line that starts with while that I get the error. I added a sleep duration of 10 seconds just to make sure enough time had gone by. MemStream has a length if I debug it, but the zipInput does sometimes, but not always. It always fails. Thanks for any help. Dave

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