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  • Troubles with my open id provider. How to debug ?

    - by Stefano Borini
    I have my own openid provider on my website, with phpmyid. It worked flawlessly until now, but apparently now it's not working anymore. I am unable to login anywhere I tried. How can I debug what's going on, to understand where's the problem ? I can add more details if required, but if I can figure it out by myself without having to paste stuff it would be better.

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  • Is it possible to include JButton in a JTable?

    - by Benjamin Confino
    I have a JTable that stores the results of a database query, so far so good. What I want is for the last column in each table to have a clickible JButton that will open the edit screen for the object represented in that row, and that means the button will need to know the details of the first column in the table from its own row (the ID from the database). Any advice? I already tried just adding JButtons but they turned into Text when I tried to run it.

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  • What .NET serializers have fixed size output for a given class?

    - by Jader Dias
    XML based serializers have variable size output for a given class. I can't use them to append data to my Memcached list, since I won't be able to retrieve that information later. But if I knew my serializer produced a fixed size output (N bytes), I could retrieve my data by splitting my list in N bytes chunks and then deserializing those chunks individually. I have created my own serializer for my class, but what other serializers I could use?

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  • Should I move from Java programming to Delphi programming?

    - by Everyone
    over the years i have been employed in a permanent position with firms that did their development work in Windows SDK, VC++, and most recently Java; in my own eyes, I am language independent. Should I move from Java to Delphi (assuming pay-scale remains unchanged)? I'm concerned because, for the most part, the net presents a relatively bleak picture for this particular skill.

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  • C++ game designing & polymorphism question

    - by Kotti
    Hi! I'm trying to implement some sort of 'just-for-me' game engine and the problem's plot goes the following way: Suppose I have some abstract interface for a renderable entity, e.g. IRenderable. And it's declared the following way: interface IRenderable { // (...) // Suppose that Backend is some abstract backend used // for rendering, and it's implementation is not important virtual void Render(Backend& backend) = 0; }; What I'm doing right now is something like declaring different classes like class Ball : public IRenderable { virtual void Render(Backend& backend) { // Rendering implementation, that is specific for // the Ball object // (...) } }; And then everything looks fine. I can easily do something like std::vector<IRenderable*> items, push some items like new Ball() in this vector and then make a call similiar to foreach (IRenderable* in items) { item->Render(backend); } Ok, I guess it is the 'polymorphic' way, but what if I want to have different types of objects in my game and an ability to manipulate their state, where every object can be manipulated via it's own interface? I could do something like struct GameState { Ball ball; Bonus bonus; // (...) }; and then easily change objects state via their own methods, like ball.Move(...) or bonus.Activate(...), where Move(...) is specific for only Ball and Activate(...) - for only Bonus instances. But in this case I lose the opportunity to write foreach IRenderable* simply because I store these balls and bonuses as instances of their derived, not base classes. And in this case the rendering procedure turns into a mess like ball.Render(backend); bonus.Render(backend); // (...) and it is bad because we actually lose our polymorphism this way (no actual need for making Render function virtual, etc. The other approach means invoking downcasting via dynamic_cast or something with typeid to determine the type of object you want to manipulate and this looks even worse to me and this also breaks this 'polymorphic' idea. So, my question is - is there some kind of (probably) alternative approach to what I want to do or can my current pattern be somehow modified so that I would actually store IRenderable* for my game objects (so that I can invoke virtual Render method on each of them) while preserving the ability to easily change the state of these objects? Maybe I'm doing something absolutely wrong from the beginning, if so, please point it out :) Thanks in advance!

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  • Overriding iPhone shutter sound through SDK

    - by Suresh
    In my iPhone app, I am using the UIImagePickerController with source type UIImagePickerControllerSourceTypeCamera. When the user takes a picture, the phone plays the familiar camera shutter sound. How can I replace this with my own custom sound? I know it's possible because I've seen other apps from the App Store do it (e.g. Red Laser). Thanks in advance!

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  • Is there any workaround for making a structure member somehow 'private' in C ?

    - by nomemory
    I am developing a simple library in C, for my own + some friends personal use. I am currently having a C structure with some members that should be somehow hidden from the rest of the application, as their use is only internal. Modifying by accident one of this members will probably make the library 'go wild'. Is there any 'workaround' to hide those members so that they can't be accessible ?

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  • Iphone apps development.

    - by dicaprio
    I'm very keen to learn Iphone apps development. Can you experts give me some tips as to which programing tool I should learn? tools I should install [of course , I prefer free tools]?, operating system I need? [I only have windows xp and unix flavours on my Personal laptop]. Do I need to have Iphone to test my apps? [poor guy, I don't own a Iphone].

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  • Updating version of multiple components using 1 file in c#

    - by tony
    Hello, I have a solution with many components and each component has its own version file (AssemblyInfo.cs). Currently each file as the standard structure: [assembly: AssemblyVersion("1.0.0.0")] [assembly: AssemblyFileVersion("1.0.0.0")] I would like to use the file version as the component version and keep that independent but I would like to have the "Product Version" be the same for all the components. I would like to do that by having a file at the solution level that is used by all the projects to get that version embedded. Any suggestions Thanks Tony

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  • C# - Silverlight - MVVM

    - by cmaduro
    I want to use UserControl as the base for my views, but I cannot add functionality to my views because they are based on UserControl. How do I create my own view class by using a subclassed version of UserControl.

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  • how to disable a javascipt hyperlink?

    - by user320946
    Hi everyone, I just get a script from a website to put it on my own, but it has a hyperlink on it and I want to disable that, here is the script: <script language="javascript" src="http://www.parstools.net/calendar/?type=2"> </script> thanks.

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  • Public Private Key Encryption Tutorials

    - by Jake M
    Do you know of a tutorial that demonstrates Public Private Key encryption(PPKE) in C++ or C? I am trying to learn how it works and eventually use Crypto++ to create my own encryptions using public private keys. Maybe theres a Crypto++ PPKE tutorial? Maybe someone can explain the relationship(if any) between the public and private keys? Could anyone suggest some very simple public and private key values I could use(like 'char*32','char/32') to create my simple PPKE program to understand the concept?

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  • If I create a transient property in the model, isn't this managed by core data then?

    - by mystify
    Just to grok this: If I had a transient property, lets say averagePrice, and I mark that as "transient" in the data modeler: This will not be persistet, and no column will be created in SQLite for that? And: If I make my own NSManagedObject subclass with an averagePrice property, does it make any sense to model that property in the xcdatamodel file? Would it make a difference if I would simply create a property in my subclass and not model that in the entity? (I think: yes, it doesn't matter at all ... but not sure)

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  • Is there a free version control server provider for non-public projects?

    - by ttobiass
    I'd like to have a version control server (preferably SVN) accessible on the internet without having to host my own (linux) server. Setting up a home server ala DynDNS is not really an option. Can you have non-public (maybe single-user) projects on one of the OSS project hosting sites? Or are there alternatives? I had a look at Google Code. But that looked very public to me. Any help would be greatly appreciated :-)

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  • Java portal architectural considerations

    - by Woot4Moo
    Currently there exists a need to create an application that will serve 5 different customers each requiring their own specific URL and content repository. My question is when designing this application what should my considerations be for protecting the content of the individual customers while meeting the requirements of the unique URL. The system will be sitting on Windows with a postgres database and java as the implementation language.

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  • Ruby: Dynamically calling available methods raising undefined method (metaprogramming)

    - by user94154
    I have an Activerecord object called Foo: Foo.attribute_names.each do |attribute| puts Foo.find(:all)[0].method(attribute.to_sym).call end Here I'm calling all attributes on this model (ie, querying for each column value). However, sometimes, I'll get an undefined method error. How can ActiveRecord::Base#attribute_names return an attribute name that when converted into its own method call, raises an undefined method error? Thank

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  • Are there any solutions for translating measurement units on Rails?

    - by Leonid Shevtsov
    I'd like to implement measurement unit preferences in a Ruby on Rails app. For instance, the user should be able to select between displaying distances in miles or in kilometers. And, obviously, not only displaying, but entering values, too. I suppose all values should be stored in one global measurement system to simplify calculations. Are there any drop-in solutions for this? Or should I maybe write my own?

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  • CakePHP ACO based on each entry

    - by Randuin
    I'm trying to make a blogging system but obviously certain users in certain groups should only be able to edit/delete their own posts/comments. How would I go about doing this in CakePHP? I followed the manual's basic Acl guide to setup my current Auth system.

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  • SharePoint Navigation Custom Link Security Trimming

    - by ifunky
    Hi, We've got our navigation setup so that subsites show in the global navigation but we have a requirement to also put custom links to external sites which is straight forward. The tricky part is that some of the custom links need security trimming which you don't get when you add your own links to the navigation. Just wondering if anyone has got some ideas on how to work around this? Thanks Dan

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  • use of ajax in django

    - by tazim
    Hi, I am new to ajax and django. I have written own XMLHttpRequest call on browser side I will have to manually set the header request.META['HTTP_X_REQUESTED_WITH'] to string XMLHttpRequest . How can I access these headers on browser side

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