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• facebook flash - Variable FBJS is not defined

  - by Murvinlai

  I have a simple Flash just put in for an facebook app. it is so simple that only one frame and one text box. that's all. I have this <fb:fbjs-bridge/> <fb:swf swfsrc="http://path/test2.swf" width="100" height="100" /> <script> <!-- --> </script> and I have no error to show the flash in Firefox & Chrome. But in IE, I get this: VerifyError: Error #1033: Cpool entry 36 is wrong type. ReferenceError: Error #1065: Variable FBJS is not defined. What happen? what does it mean? :)

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• Adaboost algorithm and its usage in face detection

  - by Hani

  I am trying to understand Adaboost algorithm but i have some troubles. After reading about Adaboost i realized that it is a classification algorithm(somehow like neural network). But i could not know how the weak classifiers are chosen (i think they are haar-like features for face detection) and how finally the H result which is the final strong classifier can be used. I mean if i found the alpha values and compute the H ,how am i going to benefit from it as a value (one or zero) for new images. Please is there an example describes it in a perfect way? i found the plus and minus example that is found in most adaboost tutorials but i did not know how exactly hi is chosen and how to adopt the same concept on face detection. I read many papers and i had many ideas but until now my ideas are not well arranged. Thanks....

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• why use branches in svn?

  - by ajsie

  i know that you could organize your files according to this structure in svn: trunk branches tags that you copy the trunk to a folder in branches if you want to have a seperate development line. later on you merge this branch back to trunk. but i wonder why me and my group should do this. why should one copy the trunk to a branch and work with this copy just to merge it back to the trunk, and mean while the code is frequently updated/commited to stay in sync with the trunk. why not just work with the trunk then? what is the benefits with creating a branch? would be great if someone could shed a light on this topic. thanks in advance

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• Wordpress autoformatting

  - by incrediman

  Why is Wordpress autoformatting my html? It keeps breaking my html code by adding <br>'s and <p>'s everywhere. I mean ffs, it even adds them around html comments. And forget javascript - it adds <div> tags around every line. How can I make it stop? Note: I only want to disable this for a specific page, and the issue is only occuring when editing html using the html content editor within the admin panel.

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• Is That REST API Really RPC? Roy Fielding Seems to Think So.

  - by Rich Apodaca

  A large amount of what I thought I knew about REST is apparently wrong - and I'm not alone. This question has a long lead-in, but it seems to be necessary because the information is a bit scattered. The actual question comes at the end if you're already familiar with this topic. From the first paragraph of Roy Fielding's REST APIs must be hypertext-driven, it's pretty clear he believes his work is being widely misinterpreted: I am getting frustrated by the number of people calling any HTTP-based interface a REST API. Today’s example is the SocialSite REST API. That is RPC. It screams RPC. There is so much coupling on display that it should be given an X rating. Fielding goes on to list several attributes of a REST API. Some of them seem to go against both common practice and common advice on SO and other forums. For example: A REST API should be entered with no prior knowledge beyond the initial URI (bookmark) and set of standardized media types that are appropriate for the intended audience (i.e., expected to be understood by any client that might use the API). ... A REST API must not define fixed resource names or hierarchies (an obvious coupling of client and server). ... A REST API should spend almost all of its descriptive effort in defining the media type(s) used for representing resources and driving application state, or in defining extended relation names and/or hypertext-enabled mark-up for existing standard media types. ... The idea of "hypertext" plays a central role - much more so than URI structure or what HTTP verbs mean. "Hypertext" is defined in one of the comments: When I [Fielding] say hypertext, I mean the simultaneous presentation of information and controls such that the information becomes the affordance through which the user (or automaton) obtains choices and selects actions. Hypermedia is just an expansion on what text means to include temporal anchors within a media stream; most researchers have dropped the distinction. Hypertext does not need to be HTML on a browser. Machines can follow links when they understand the data format and relationship types. I'm guessing at this point, but the first two points above seem to suggest that API documentation for a Foo resource that looks like the following leads to tight coupling between client and server and has no place in a RESTful system. GET /foos/{id} # read a Foo POST /foos/{id} # create a Foo PUT /foos/{id} # update a Foo Instead, an agent should be forced to discover the URIs for all Foos by, for example, issuing a GET request against /foos. (Those URIs may turn out to follow the pattern above, but that's beside the point.) The response uses a media type that is capable of conveying how to access each item and what can be done with it, giving rise to the third point above. For this reason, API documentation should focus on explaining how to interpret the hypertext contained in the response. Furthermore, every time a URI to a Foo resource is requested, the response contains all of the information needed for an agent to discover how to proceed by, for example, accessing associated and parent resources through their URIs, or by taking action after the creation/deletion of a resource. The key to the entire system is that the response consists of hypertext contained in a media type that itself conveys to the agent options for proceeding. It's not unlike the way a browser works for humans. But this is just my best guess at this particular moment. Fielding posted a follow-up in which he responded to criticism that his discussion was too abstract, lacking in examples, and jargon-rich: Others will try to decipher what I have written in ways that are more direct or applicable to some practical concern of today. I probably won’t, because I am too busy grappling with the next topic, preparing for a conference, writing another standard, traveling to some distant place, or just doing the little things that let me feel I have I earned my paycheck. So, two simple questions for the REST experts out there with a practical mindset: how do you interpret what Fielding is saying and how do you put it into practice when documenting/implementing REST APIs? Edit: this question is an example of how hard it can be to learn something if you don't have a name for what you're talking about. The name in this case is "Hypermedia as the Engine of Application State" (HATEOAS).

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• Find the next textarea using Jquery

  - by gnomixa

  HTML <tr id="rowId"><td><textarea class="inputTextarea"></textarea></td><td><textarea class="inputTextarea"></textarea></td></tr> <tr id="rowId2"><td><textarea class="inputTextarea"></textarea></td><td><textarea class="inputTextarea"></textarea></td></tr> <tr id="rowId3"><td><textarea class="inputTextarea"></textarea></td><td><textarea class="inputTextarea"></textarea></td></tr> Provided I know rowId, how do I find the next textarea, starting at any arbitary point. I don't mean ANY input, textarea only.

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• dell server display on laptop screen

  - by hari

  Please redirect if this is not (and probably thats true) the correct forum/site. I have a dell server and I am trying to configure it for the first time. It is running windows server 2003. I do not have a monitor screen. Can I use laptop screen to display dell server and set it up? I mean to say is, if I can display dell server on laptop screen, it would be great. I am trying that with a dell laptop but not getting the display. Any help/pointer would be appreciated. Thanks in advance.

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• Usage of Python 3 super()

  - by deamon

  I wonder when to use what flavour of Python 3 super(). Help on class super in module builtins: class super(object) | super() -> same as super(__class__, <first argument>) | super(type) -> unbound super object | super(type, obj) -> bound super object; requires isinstance(obj, type) | super(type, type2) -> bound super object; requires issubclass(type2, type) Until now I've used super() only without arguments and it worked as expected (by a Java developer). Questions: What does "bound" mean in this context? What is the difference between bound and unbound super object? When to use super(type, obj) and when super(type, type2)? Would it be better to name the super class like in Mother.__init__(...)?

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• Game cross-compiling and packaging

  - by Helltone

  Hi, Some friends and I wanted to develop a game. Any language will do. I've been programming in C for years, but never wrote a game before. One of us knows SDL a little bit. It would also be a nice excuse to learn Python+pygame. We wish our game to be 'standalone'. By standalone, I mean most users (at least Linux, Mac and Windows) will not have to manually download and install anything else apart from a package. It is ok if the installation automatically handles missing dependencies. If the packages contain binaries, we wish to be able to generate them using cross-compilation from Linux. How should we package and structure the project, and what language is best suited?

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• wso2 products and alfresco integration

  - by Ivo

  I've found this tutorial about installing Alfresco on WSO2 Appserver. http://sanjeewamalalgoda.blogspot.com/2011/09/how-to-install-alfresco-on-wso2.html Does this mean I can delegate authentication to the wso2 security configuration also? I wouldn't want to have to manage security in both places separately. If I were to deploy Alfresco in wso2 I would want to use the wso2 Identity Server for authentication. I was thinking about Alfresco running in wso2 Appserver using identity server for authentication and ESB for the Alfresco services. Is this approach suitable for other apps as well? Is that possible?

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• Advantages of compilers for functional languages over compilers for imperative languages

  - by Onorio Catenacci

  As a follow up to this question What are the advantages of built-in immutability of F# over C#?--am I correct in assuming that the F# compiler can make certain optimizations knowing that it's dealing with largely immutable code? I mean even if a developer writes "Functional C#" the compiler wouldn't know all of the immutability that the developer had tried to code in so that it couldn't make the same optimizations, right? In general would the compiler of a functional language be able to make optimizations that would not be possible with an imperative language--even one written with as much immutability as possible?

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• nsthread in iphone xcode

  - by BibiBuBu

  Good Day! i want to use nsthreads in a project of xcode that will call a function which is for the network access and will check that if the network is there or not, so i need to have a thread which will execute after lets say 1 minutes to check the connectivity. and will continue run unless the app is closed. [NSThread detachNewThreadSelector:@selector(startTheBackgroundJob) toTarget:self withObject:nil]; startTheBackgroundJob NSAutoreleasePool *pool = [[NSAutoreleasePool alloc] init]; // wait for 3 seconds before starting the thread, you don't have to do that. This is just an example how to stop the NSThread for some time [NSThread sleepForTimeInterval:5]; //[self performSelectorInBackground:@selector(checkNet) withObject:nil]; [self performSelectorOnMainThread:@selector(checkNet) withObject:nil waitUntilDone:YES]; [pool release]; it works only for the first time but not any other, i mean only 1 loop it makes can somebody help me in this regard. Thanks

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• Subclipse RAD 7 cannot compare JS

  - by JM Maranan

  Hi, I cant seem to compare two JS files (one edited locally and the latest version from the repository when doing Team Synch or Compare With) using Subversion in IBM RAD 7. I have used Subclipse as a plugin version 1.6.8. I have totally downgraded to Subclipse 1.6.5 because my team mate's IDE (also RAD 7) is working fine on this subclipse version when comparing JS files. I have also looked up and seems we have both the same version of RAD 7. Frantically looked for solutions on the net and found nothing. Sorry if this is the place to look for support. I was attempting to upgrade my RAD but darn the fix packs are so huge even for a little fixes (other fixes I mean)(shoo IBM). Does anyone have a workaround?

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• IM (Instant Messaging) increase or decrease developer's productivity?

  - by GRGodoi

  In my team I have some developers that always have two or three IM windows open. The majority of these windows are not related with the project where they are nor with asking or offering programming help. I also use IM and, off course, some of my "talks" are not related with the job. But I feel that when I am using IM my productivity drops. I mean, there is more "mental" work to change the scope between the task I am doing and the conversation every time a new message arrive. Do you face the same situation? Is there some good practices to avoid this (excluding, off course, stopping using IM)?

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• Private members when extending a class using ExtJS

  - by Protron

  I have done some research on the ExtJS forum regarding private methods and fields inside a extended class, and I couldn't find any real answer to this. And when I say an extended class I mean something like this: Ext.ux.MyExtendedClass = Ext.extend(Ext.util.Observable, { publicVar1: 'Variable visible from outside this class', constructor: function(config) { this.addEvents("fired"); this.listeners = config.listeners; }, // to show that I need to use the base class publicMethod1: function() { return 'Method which can be called form everywhere'; }, publicMethod2: function() { return this.publicMethod1() + ' and ' + this.publicVar1; } // to show how to access the members from inside another member }); The problem here is that everything is public. So, how do I add a new variable o method within the scope of MyExtendedClass that cannot be accessed from outside but can be access by the public methods?

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• Must I call super when I implement -scrollViewDidScroll: of UIScrollViewDelegate in an UITableView?

  - by mystify

  I made a custom UITableView subclass and implemented this: - (void)scrollViewDidScroll:(UIScrollView *)scrollView { // scrolled... } Now, what I think is that UITableView may also love to get this message for some obvious reasons. However, when I don't forward that to super, for some reason, everything still works fine. Must I forward that guy to super? I mean...it's a delegate method implementation, but as far as I'm aware of, this would still override anything implemented in UITableView, or not? Edit: I see...the delegate could be anyone. Never mind about this. BUT: What I have such a thing in a superclass, and make a subclass. How would I even know that the superclass does implement that method and I must forward it to super?

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• Error: could not locate an NSManagedObjectModel for entity name 'TAB_RSS'

  - by Stephen

  Hello, Does anyone know what does the following error mean: +entityForName: could not locate an NSManagedObjectModel for entity name 'TAB_RSS' I noticed my frameworks were highlighted in red UIKIT.framework, Foundation.framework and CoreGraphics.framework. I've now added these but am getting a warning message stating "missing required architecture i386 in file". I think this may be related to the above error. I found another post that may help me http://stackoverflow.com/questions/1...e-i386-in-file but I can't find my project.pbxproj file. I think i need to edit this and remove references to the FRAMEWORK_SEARCH_PATHS. Stephen

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• Conditional Markup in aspx

  - by Dynde

  Hi... I have a ListView. If I want to base the html markup on a condition in respects to the databound item, what would be the best way to do that? What I mean is, is there any other way then putting <% % if/else blocks directly in the markup? I'm aware that a really ugly way of doing it, is putting html markup in the database field, and just let the Eval() squeeze out the proper markup (I'm not doing that). I would like to avoid putting actual <% % C# blocks in the code as well. Any good ideas?

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• computing matting Laplacian matrix of an Image

  - by ajith

  hi everyone, i need to compute Laplacian Matrix-L for an image(nXn) in opencv...computing goes as follows.......... dij - 1/|wk|{[1+1/(e/|wk|+s2)][(Ii-µk)*(Ij -µk)]}.... for all(i,j)?wk,summing over k yields (i,j)th element of L. where Here dij is the Kronecker delta,µk and s2k are the mean & variance of intensities in the window wk around k,and |wk| is the number of pixels in this window.wk is 3X3 window... here am not clear about 2 things... 1.what ll be the size of L?nXn or (nXn)X(nXn)?? 2.how to select Ii and Ij separately in 2D image?

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• Is gchart safe to use?

  - by Paul Tomblin

  The home page for gchart, a client side charting add-in for Google Web Toolkit (GWT), has a long screed about how the project's only maintainer thinks his Google account has been hacked and because of that he will be "disavowing/abandoning my own project and Google account". Does that mean the project is an orphan? Is somebody taking it over? There is always a risk on basing your project on somebody else's code because they may stop supporting it or abandon it during your project's life time, but it seems to me that with the fast evolution of Java and GWT, using gchart in a new project may be a big mistake. Am I right?

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• Open Visual Web Developer Express file in Visual Studio Professional

  - by a_m0d

  I started working on an Asp.net MVC website using Visual Web Developer Express 2008 a while ago. Just recently, I managed to get my hands on a copy of Visual Studio 2008 Professional (through DreamSpark). I installed the Service Pack, and also the MVC2 files for Visual Studio. However, now I can't open my project anymore. When I try to open the solution in Visual Studio, it tells me that the project type is not supported. Does this mean that I have to resort to using VWD Express again? Note: I installed MVC2 through the Web Platform Installer, and it says that it installed successfully, but yet when I restart the WPI, the box next to MVC2 isn't checked; if I check it and click "Install", it finishes the install process instantly and tells me that it was successful.

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• PerThreadLifetimeManager in Unity

  - by DorianGrey

  Hi, In the Unity PerThreadLifetimeManager documentation, I read that: "This lifetime manager does not dispose the instances it holds". Ref.: http://msdn.microsoft.com/en-us/library/ff647854.aspx So, if I am using a ThreadPool, does it mean that objects resolved using Unity on a Thread of the ThreadPool will not get disposed at the end of the work done in that thread before being returned to the pool? Any pattern or ideas how I can ensure that the objects do get disposed & I get a clean thread from the thread pool? Thanks!

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• What are modern and old compilers written in?

  - by ulum

  As a compiler, other than an interpreter, only needs to translate the input and not run it the performance of itself should be not that problematic as with an interpreter. Therefore, you wouldn't write an interpreter in, let's say Ruby or PHP because it would be far too slow. However, what about compilers? If you would write a compiler in a scripting language maybe even featuring rapid development you could possibly cut the source code and initial development time by halv, at least I think so. To be sure: With scripting language I mean interpreted languages having typical features that make programming faster, easier and more enjoyable for the programmer, usually at least. Examples: PHP, Ruby, Python, maybe JavaScript though that may be an odd choice for a compiler What are compilers normally written in? As I suppose you will respond with something low-level like C, C++ or even Assembler, why? Are there compilers written in scripting languages? What are the (dis)advantages of using low or high level programming languages for compiler writing?

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• Does it make sense to use a NSFetchedResultsController without an UITableViewController? How are the

  - by dontWatchMyProfile

  I mean... could I also just create a plain old UIViewController and then set up a UITableView myself, plus an NSFetchedResultsController? How much do UITableViewController and NSFetchedResultsController interact with eachother? As far as I see it, UITableViewController is NOT by default already adopting the NSFetchedResultsControllerDelegate protocol. It almost looks like if UITableViewController has been developed without knowing about NSFetchedResultsController. Probably they even did that before developing FRC. Anyways, just a raw guess because the UITableViewController lacks of mentioning FRC at all. So the only thing I see in UITableViewController is that it is already the delegate for a UITableView by adopting the protocol, and it sets up the UITableView instance for me and assigns it internally to it's tableView property. Is that the whole magic of UITableViewController? (note: the nsfetchedresultscontrolle tag is not a typo. SO has a limit for the num of chars...too bad for that missing r, that's why I avoided this tag in my other buch of questions like the plague)

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• Recommendations for keeping a build server updated

  - by gareth_bowles

  As a guy who frequently switches between QA, build and operations, I keep running into the issue of what to do about operating system updates on the build server. The dichotomy is the same on Windows, Linux, MacOS or any other o/s that can update itself via the internet: The QA team wants to keep the build server exactly as it is from the beginning of the product release cycle to the end, since installing updates could destabilize the server and means that successive builds aren't made against the same baseline. The ops team wants the software to be deployed on a system with all the latest security patches; this can mean that the software isn't deployed on exactly the same version of the o/s that it was built on. I usually mitigate this by taking release candidate builds and installing them on a test server that has a completely up-to-date o/s, repeating the automated tests that are run on the build server and doing some additional system level testing to make sure everything looks good before deployment. However, this seems inefficient to me; does anyone have a better way ?

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