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  • Release objects before returning a value based on those object?

    - by Moshe
    Consider the following method, where I build a string and return it. I would like to release the building blocks of the sting, but then the string is based on values that no longer exists. Now what? Am I leaking memory and if so, how can I correct it? - (NSString) getMiddahInEnglish:(int)day{ NSArray *middah = [[NSArray alloc] initWithObjects:@"Chesed", @"Gevurah", @"Tiferes", @"Netzach", @"Hod", @"Yesod", @"Malchus"]; NSString *firstPartOfMiddah = [NSString stringWithFormat: @"%@", [middah objectAtIndex: ((int)day% 7)-1]]; NSString *secondPartOfMiddah = [NSString stringWithFormat: @"%@", [middah objectAtIndex: ((int)day / 7)]]; NSString *middahStr = [NSString string@"%@ She'bi@%", firstPartOfMiddah, secondPartOfMiddah]; [middah release]; [firstPartOfMiddah release]; [secondPartOfMiddah release]; return middahStr; }

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  • Storing credit card details

    - by Andrew
    I have a business requirement that forces me to store a customer's full credit card details (number, name, expiry date, CVV2) for a short period of time. Rationale: If a customer calls to order a product and their credit card is declined on the spot you are likely to lose the sale. If you take their details, thank them for the transaction and then find that the card is declined, you can phone them back and they are more likely to find another way of paying for the product. If the credit card is accepted you clear the details from the order. I cannot change this. The existing system stores the credit card details in clear text, and in the new system I am building to replace this I am clearly not going to replicate this! My question, then, is how I can securely store a credit card for a short period of time. I obviously want some kind of encryption, but what's the best way to do this? Environment: C#, WinForms, SQL-Server.

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  • Comparing tables with filtering in different databases and visualizing diffs/pushing changes

    - by MicMit
    I am building certain GUI in C# for a content manager and looking for the tools or code snippets or open libraries ( code ideally in C# ) which allow me the following : 1. For table A in database X (test ) and table A in database Y (production) and for a simple filter ( e.g. listname = "XYZ" ) I need to show additions/deletions/updates in some way. which might be side-by-side or just 2 record added table with some fields 2 record deleted table with some fields Considering that this task is very common, I guess, certain components should exist ? Components either return some collections from parameters given for further visualizing or just produce for e.g. html report. 2. I need to push changes for the filter I mentioned in 1 and update table in production database for this filter only ( ie for the particular list approved by content person). Again probably there are certain SQL code generators - components in addition to diffs or standalone.

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  • Adding JTextField to a JPanel and showing them

    - by Davide Gualano
    I'm building a little app using Java and Swing in NetBeans. Using NetBeans design window, I created a JFrame with a JPanel inside. Now I want to dynamically add some jTextFields to the JPanel. I wrote something like that: Vector textFieldsVector = new Vector(); JTextField tf; int i = 0; while (i < 3) { tf = new JTextField(); textFieldVector.add(tf); myPanel.add(tf); //myPanel is the JPanel where I want to put the JTextFields i++; } myPanel.validate(); myPanel.repaint(); But nothing happens: when I run the app, the JFrame shows with the JPanel inside, but the JTextFields don't. I'm a total newbie in writing graphical Java apps, so I'm surely missing something very simple, but I can't see what.

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  • -sizeWithFont Functions Differently on Device

    - by LucasTizma
    So I am seemingly encountering some strange behavior when using NSString's -sizeWithFont family of method calls depending on whether or not I'm invoking it on the iPhone Simulator or an actual device. Simply enough, when the receiver of the -sizeWithFont method call is nil, the resulting CGSize passed back on the Simulator is {0, 0}. However, on the device, it is the size of the bounding rectangle I specified in the method call. See the following log statements: Simulator: someString: (null) someStringSize: {0, 0} Device: someString: (null) someStringSize: {185, 3.40282e+38} The behavior on the Simulator is what I would expect. Not that this issue is difficult to circumvent, but 1) I'm a little confused why this family of functions would behave differently on the Simulator and an actual device, and 2) why does calling a method on a nil receiving return a particular result? Thanks for any pointers or insight you guys can provide! EDIT: I suppose I should mention that I'm building against the 3.1 SDK.

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  • How to find a programmer for my project?

    - by Al
    I'm building a web application to generate monthly subscription fees, but I've quickly realised I'm going to need some help with the project to finish it this century. I don't have any money upfront for a freelancer and every website I've found takes bids for project work. The tasks that need doing are flexible too because I can do whatever the other coder doesn't want to. I'm also happy to guide the developer and offer tips for performance/security/etc etc. My question is; how do I go about finding someone to work with on a profit-share basis? I'm sure there are a billion people like me with the "next killer app" but I genuinely believe in it. Can anyone offer some advice? Thanks in advance! EDIT: I guess the trick is to find someone passionate enough about the subject as I am. Where would I find someone? Are there websites that broker profit-share deals on programming work?

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  • Javascript/iframe/embed/object question

    - by thinkfuture
    OK, so here is my issue. I'm building a system which will allow people to embed lists of links on their pages. When the link is clicked, i'd like to use something like Lightview or Lightwindow to open it up over the whole window, not just in the iframe. I don't have access to the page that the user will be embedding this object into. Everything I've tried so far tells me that I can't open anything over the parent window, since I don't have access to it from the iframe or object, javacript security issue. However, I've seen sites that do that kind of overlay. so it must be possible. If anyone can point me to any resources that could help, that would be great. if it matters, i'm using Ruby on Rails... Thanks...chris

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  • CodeIgniter based e-shop, shipping and gift address design problem

    - by alexander
    While building an ecommerce platform I have run into design problems. I'm working with the built-in CodeIgniter's cart class. It stores all the cart information in session. Let say that cart has already been filled with products and user clicks checkout. When should I store order in database? Just after that click or after several steps of gathering information and stoing it in session? How to deal with additional features like different shipping methods? Should I add it to the basket first and get additional (gift address) to session? I dont want to store it in database because of the relation between gift address and order is needed and since I dont know what's the ID of the order. I'm puzzled :) Additionally I think its crucial to keep cart aware of shipping methods and additional bought services (by selecting gift address there is an extra fee) because the cart content is just like an reciept? In brief, what is the best practice to process checkout?

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  • HPC (mainly on Java)

    - by Insectatorious
    I'm looking for some way of using the number-crunching ability of a GPU (with Java perhaps?) in addition to using the multiple cores that the target machine has. I will be working on implementing (at present) the A* Algorithm but in the future I hope to replace it with a Genetic Algorithm of sorts. I've looked at Project Fortress but as I'm building my GUI in JavaFX, I'd prefer not to stray too far from a JVM. Of course, should no feasible solution be available, I will migrate to the easiest solution to implement.

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  • binary file formats: need for error correction?

    - by Jason S
    I need to serialize some data in a binary format for efficiency (datalog where 10-100MB files are typical), and I'm working out the formatting details. I'm wondering if realistically I need to worry about file corruption / error correction / etc. What are circumstances where file corruption can happen? Should I be building robustness to corruption into my binary format? Or should I wrap my nonrobust-to-corruption stream of bytes with some kind of error correcting code? (any suggestions? I'm using Java) Or should I just not worry about this?

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  • Easily switching ConnectionStrings on publish to Azure

    - by David Pfeffer
    I'm currently building an Azure Web Role. I am testing this project against a local database server on localhost. Then, when confident that the project is working, I publish it to Staging on Windows Azure. However, I also have to remember to change the connection string to point to the live SQL server on SQL Azure before deploying, and then change it back to localhost afterwards. Is there any nice way to automate this, or perhaps a different process to take to avoid the issue altogether? For example is there a way to have a configuration file for Azure that isn't updated with every deploy?

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  • Using Java server-side with PHP-generated front-end

    - by Storm
    Hi!  Does anyone have a real-world experience in building such a project? I'd like to move away questions about "is it good idea or not", but focus on possible solutions. I see one simple way - HTTP GET/POST + xml/json - and one more elegant - AJAX/DWR. As for the first one - I understand that it is possible, but needs quite a lot coding. As for second way - is it possible to use Java DWR engine with PHP front-end? Is DWR language-independent for client side (as it uses just JavaScript)?  Would it be a problem, that client page was generated by one web server (for example, apache+php) and served on server-side by another (for example, tomcat)? I suspect, that Tomcat will complain about sessions. Can this problem be fixed with allowing cross-domain AJAX? Thank you in advance. Denis.

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  • How to secure authorization of methods

    - by Kurresmack
    I am building a web site in C# using MVC.Net How can I secure that no unauthorized persons can access my methods? What I mean is that I want to make sure that only admins can create articles on my page. If I put this logic in the method actually adding this to the database, wouldn't I have business logic in my data layer? Is it a good practise to have a seperate security layer that is always in between of the data layer and the business layer to make? The problem is that if I protect at a higher level I will have to have checks on many places and it is more likely that I miss one place and users can bypass security. Thanks!

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  • How to make a 3D UI for an application ?

    - by wacky_coder
    I'm building an application and I'd like its User Interface to be 3D, most probably a cylinder. The user would see the cylinder[Horizontally laid] and the cylinder's curved surface would have the buttons and any other controls that need to be placed. The cylinder needs to rotate and later, I'd like to add some other effects to the cylinder too. Someone told me that such a UI can be modelled using Maya or Blender and exported to openGL and then I could use C/C++ (with Qt) to carry out the actions. How can this be done?? Is there any other way to build the UI and do all the other things that I need ?? I really need some help because I have the UI in mind, but no idea on how to implement it. Thanks

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  • iFrame src something other than javascript:false but same effect

    - by macca1
    Is there any other way to write javascript:false that is more pleasant? I'm building a print functionality for an intranet app (for IE6) and I make the printed page using an iframe: $('body').append('<iframe id="printIFrame" src="javascript:false"></iframe>'); $("#printIFrame").attr('style','position:absolute;left:-500px;top:-500px;'); Without having javascript:false in the src, I'll get the "This page contains both secure and nonsecure items" popup when I create it. However the downside of this is that "javascript:false" gets printed as the title on the bottom left of each page (instead of about:blank or something more useful). Is there some kind of javascript technique that I can write javascript:false but in cleaner terms? I tried something like this var PrintOut = false; $('body').append('<iframe id="printIFrame" src="PrintOut"></iframe>'); But I couldn't get that working. Any other ideas?

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  • Make object available within php functions without passing them or making them global

    - by Matt
    Hey all, This requirement is just for simplicity for developers and beautiful code. I'm building a template system and I really would just like an object variable to simply be there in all functions. Here's some code: Librarian.php: $class = "slideshow"; $function = "basic"; $args = array(...); $librarian = $this; // I WOULD LIKE THIS TO BE PRESENT IN CALLED FUNCTION ... return call_user_func($class.'::'.$function, $args); ... Slideshow.php: public static function basic($args) { echo $librarian; // "Librarian Object" } Thanks! Matt Mueller

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  • Simulate Incorrect Content-Length Headers for HTTP in C#

    - by cfeduke
    We are building a comprehensive integration test framework in C# for our application which exists on top of HTTP using IIS7 to host our applications. As part of our integration tests we want to test incoming requests which will result in EndOfStreamExceptions ("Unable to read beyond end of stream") that occur when a client sends up a HTTP header indicating a larger body size than it actually transmits as part of the body. We want to test our error recovery code for this condition so we need to simulate these sorts of requests. I am looking for a .NET Fx-based socket library or custom HttpWebRequest replacement that specifically allows developers to simulate such conditions to add to our integration test suite. Does anyone know of any such libraries? A scriptable solution would work as well.

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  • Changing the config file in a Visual Studio Package

    - by Andrei
    Hello everybody. I'm building a Visual Studio Package and associated with it, I have an app.config file (which contains some information about connecting to a WCF service). As far as I can tell, this package is actually connecting to the devnev.exe.config configuration file (if I use AppDomain.CurrentDomain.SetupInformation.ConfigurationFile), it will retrieve the path to the devnev.exe.config Firstly, is this correct? Shouldn't the package automatically pick up the app.config file? If this is the case, then how can I make the project use the app.config file? I'm running VS2010 Ultimate, programming in C#. Thanks!

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  • Page zoom slows down page rendering

    - by Alex
    I'm building a map viewer much like Google maps and i've run into an interesting performance problem when a page is zoomed (i.e ctrl + OR ctrl -). It seems to affect all major browsers but Firefox has the worst problems as far as I can tell. The problem is that when the page is zoomed panning by dragging the mouse seems really sluggish. This can even be seen on Google maps. Pan the map left and right and note how smooth it is. Now press ctrl+ (3 or 4 times). Now pan the map left and right in the same way. Notice the difference? Does anyone know how I can minimize this problem?

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  • Is there a way to programatically popup the "Microsoft Silverlight Configuration" dialog?

    - by Jim McCurdy
    I am building for Silverlight 4, and I handle MouseRightButtonDown events and build my own ContextMenu's (a class from the Silverlight Toolkit). I would like to add the classic "Silverlight" menu item to my menus, and give the user the familiar option of launching the "Microsoft Silverlight Configuration" dialog. This is the dialog lets users manage Updates, Webcams, Permissions, and Application Storage. So I need a way to programatically launch the dialog when the menu item is clicked. I can be done for Flash, and it would seem that Microsoft would want to encourage developers to support that option. Can it be done?

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  • Raudus vs ExtPascal

    - by user193655
    Delphi developers has several tools (several alternatives to ASP.NET) for building web applications. While No.1 framework is Intraweb, there is a lot of interest around ExtJS, that has 2 incarnations: 1) the opensource ExtPascal 2) the closedsource Raudus Now the products are different, Raudus never supports the latest ExtJS version (while ExtPascal does because as far as I read it "almost automatically updates itself to the latest ExJS version"), Raudus "seems" much RAD (much similar to Intraweb from the RAD point of view). Anyway why chose one or the other? Why Raudus since it is free cannot become Open Source?

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  • pitchbend (varispeed) audio with iPhone SDK's AudioUnit

    - by fetzig
    hi, I'm trying to manipulate the speed (and pitch) of a sound while playing. so i played around with iphone sdk's AudioUnit. downloaded iPhoneMultichannelMixerTest and tried to add an AUComponent to the graph (in this case a formatconverter). but i get (pretty soon) following error when building: #import <AudioToolbox/AudioToolbox.h> #import <AudioUnit/AudioUnit.h> ... AUComponentDescription varispeed_desc(kAudioUnitType_FormatConverter, kAudioUnitSubType_Varispeed, kAudioUnitManufacturer_Apple); ^^ error: 'kAudioUnitSubType_Varispeed' was not declared in this scope. any ideas why? the documentation on this topic doesn't help me at all (just api doc isn't very helpful when having no clue about the concept behind). there are no examples on how to wire these effects together and manipulating there properties...so maybe i'm totally wrong, anyway any hint is great. thx for help.

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  • Extending configuration for .Net 3.5 Applications

    - by Maximiliano Rios
    Due to a requirement in my current project, I have to build a configuration manager to handle configurations that merge local config info with database one. Custom configuration doesn't fit my needs, problem is that I don't know what's the type before loading certain information, for example: Loading database information I will able to know what's myhandler's type. Not previously. So I thought to write my own handler but I can't let set blank as type for sections, in fact .net requires to know what's the type to match myhandler nodes. I'm thinking on building a different parser to read XML nodes but I would prefer to match this structure. I've not found any information to do that yet, is there any way? Can I extend or hook up something into the framework to be capable of loading on-the-fly types and validate nodes? Thanks in advance.

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  • Multiple Forms on the Same Page with Rails

    - by Eric Koslow
    So I'm building a rails app for high school students and I've hit a problem when it comes to creating users. I want the students to only be able to create accounts if they select their school and type in their school's password correctly. What is the correct / easiest way of doing this? Should I create a gatekeeper to the user#new action that they have to pass first or if their a way that on the same page a student can submit to forms. One would be the regular username, email, password using: form_for @user do ... end But then creating another form for the high-school / high-school password selection. Ideally the controller would be able to get the params of the high-school form, validate those, then go on to create the user from the user params. Is this possible using rails? My setup: Rails 3 and Ruby 1.9.2dev Thank you!

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  • need a web browser in my desktop application

    - by javadahut
    part of the specification of this desktop application is to have a mini browser built in, so that you can enter URL, and navigate the site as you would on a normal browser. Access to the browser page's DOM is required, should let me programmatically change the rendering view of a page, should be cross-platform, renders javascript JDIC seems outdated and I've heard Mozswing doesn't run on Mac.... Jxbrowser license costs a grand and up. Is Java the wrong platform to be creating such app? Are there any other solutions out there for building an application like this ? Thank you.

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