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  • Using same name for Core Data object as a Private Framework Object

    - by bjorn geez
    Hi all, I've got a core data-based app for iPhone and I'm getting the following warning: objc[2472]: Class Property is implemented in both /System/Library/PrivateFrameworks/Notes.framework/Notes and /var/mobile/Applications/B69194FF-448F-48AD-A78D-DDB8935F/AmcCalc.app/AmcCalc. One of the two will be used. Which one is undefined. When I started working on this app back with SDK 3.0 I didn't get this error, so how do I deal with this? Thanks! Bjorn

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  • Which knowledge base/rule-based inference engine to choose for real time Runway incursion prevention

    - by Piligrim
    Hello, we are designing a project that would listen to dialog between airport controllers and pilots to prevent runway incursions (eg. one airplane is taking off while other is crossing the runway). Our professor wants us to use Jena for knowledge base (or anything else but it should be some sort of rule-based engine). Inference is not the main thing in Jena and there's not much documentation and examples of this. So we need an engine that would get messages from pilots as input and output possible risks of incursion or any other error in message protocol. It should be easy to write rules, and should be easy to provide engine with real time data. I image it something like this: A pilot sends a message that he lands on some runway, the system remembers that the runway is busy and no one should cross it If someone is given an instruction to cross this runway, the engine should fire a rule that something is wrong When the pilot sends a message that he left the runway and goes to the gate, the system clears the runway and lets other planes to use it. So is Jena, or prolog or any other rules engine suitable for this? I mean it is suitable, but do we really need to use it? I asked the prof. if we could just keep state of the runway and use some simple checks based on messages we receive and he said that it is not scalable and we need the knowledge base. Can someone give me any advise on which approach to use for this system? If you recommend k.b., then which one should we use? The project is written in java. Thank you.

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  • Paypal Payflow Link ASP.Net MVC Open Source Framework

    - by runxc1 Bret Ferrier
    I am looking at creating a site using ASP.Net MVC which of coarse has a paid membership option and needs to allow recuring payments via Paypal. I am thinking of using Paypals Payflow Link as the site will be fairly small. I am looking for an Open Source example or Framework that I can use with Payflow Link. Are there any good .Net Frameworks that only handle the payment system. The rest of the app will be custom app.

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  • XML based WCF service layer

    - by blockoutall
    Hi Guys, we are in the process of desigining a solution as : PL(Sliver Light) | SL(??wcf??) | BL(WWF) | DL(Entity Framework) during this process our thought is decouple the PL & SL ,so we thought of going with the XML based services Can u guys suggest what would be the better solution for desiging the SL(using WCF)which can do the transctions done through XML using WCF

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  • Javascript DOM ready without an entire framework

    - by Brian
    Hello, Does anyone know of a good javascript DOM ready library that I can use without loading an entire framework? I found one on google code that seems to work, but the library was posted in 2008 and I can't find any confirmation on up-to-date cross browser support. Thanks, Brian

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  • Database design for credit based purchases

    - by FreshCode
    I need an elegant way to implement credit-based purchases for an online store with a small variety of products which can be purchased using virtual credit or real currency. Alternatively, products could only be priced in credits. Previous work I have implemented credit-based purchasing before using different product types (eg. Credit, Voucher or Music) with post-order processing to assign purchased credit to users in the form of real currency, which could subsequently be used to discount future orders' charge totals. This worked fairly well as a makeshift solution, but did not succeed in disconnecting the virtual currency from the real currency, which is what I'd like to do, since spending credits is psychologically easier for customers than spending real currency. Design I need guidance on designing the database correctly with support for the simultaneous bulk purchase of credits at a discount along with real currency products. Alternatively, should all products be priced in credits and only credit have a real currency value? Existing Database Design Partial Products table: ProductId Title Type UnitPrice SalePrice Partial Orders table: OrderId UserId (related to Users table, not shown) Status Value Total Partial OrderItems table (similar to CartItems table): OrderItemId OrderId (related to Orders table) ProductId (related to Products table) Quantity UnitPrice SalePrice Prospective UserCredits table: CreditId UserId (related to Users table, not shown) Value (+/- value. Summed over time to determine saldo.) Date I'm using ASP.NET MVC and LINQ-to-SQL on a SQL Server database.

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  • Using Robot Framework for ATDD

    - by ratkok
    I would like to hear other people's experience with using Robot Framework for automated acceptance testing. What are its major strengths and weaknesses as well as any comparison with other frameworks (mainly Fitness and Selenium)? The code that will be tested is real-time, legacy code, mainly in C++.

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  • long polling netty nio framework java

    - by Alfred
    Hi, How can I do long-polling using netty framework? Say for example I fetch http://localhost/waitforx but waitforx is asynchronous because it has to wait for an event? Say for example it fetches something from a blocking queue(can only fetch when data in queue). When getting item from queue I would like to sent data back to client. Hopefully somebody can give me some tips how to do this. Many thanks

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  • Django vs GAE + Django vs GAE + other framework

    - by Ilian Iliev
    I`m looking for opinion which one is better for building web applications(web sites). I have some experience with Django, and some with Google App Engine and App-Engine-Patch for Django. And it seems to me that only Django is working faster than the GAE implementation. Is there some other frameworks that simplify the developments process, providing forms creating, user management, url resolving etc. Thanks in advance, Ilian Iliev P.S. I am also interested in GAE and webapp framework case

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  • Where are the .framework files?

    - by thyrgle
    Hi, I am wondering where the .framework files are located. I am using Mac OS 10.6. If this is more of a Superuser question just tell me because I was having trouble determining whether to put it here or Superuser or here but it seemed like it should go here.

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  • How do you remove invalid hexadecimal characters from an XML-based data source prior to constructing

    - by Oppositional
    Is there any easy/general way to clean an XML based data source prior to using it in an XmlReader so that I can gracefully consume XML data that is non-conformant to the hexadecimal character restrictions placed on XML? Note: The solution needs to handle XML data sources that use character encodings other than UTF-8, e.g. by specifying the character encoding at the XML document declaration. Not mangling the character encoding of the source while stripping invalid hexadecimal characters has been a major sticking point. The removal of invalid hexadecimal characters should only remove hexadecimal encoded values, as you can often find href values in data that happens to contains a string that would be a string match for a hexadecimal character. Background: I need to consume an XML-based data source that conforms to a specific format (think Atom or RSS feeds), but want to be able to consume data sources that have been published which contain invalid hexadecimal characters per the XML specification. In .NET if you have a Stream that represents the XML data source, and then attempt to parse it using an XmlReader and/or XPathDocument, an exception is raised due to the inclusion of invalid hexadecimal characters in the XML data. My current attempt to resolve this issue is to parse the Stream as a string and use a regular expression to remove and/or replace the invalid hexadecimal characters, but I am looking for a more performant solution.

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  • question regarding rails framework code

    - by Joseph Misiti
    I noticed that the code in the rails framework is using the following convention all over the place: class SomeClass class << self def some function end end end rather than class SomeClass end def SomeClass.function end and class SomeClass def self.somefunction end end What is the reason for this design choice? They all seem to accomplish them same thing

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  • What can cause Powershell execution policy not to be taken into account?

    - by Stephane
    We have in our infrastructure a number of powershell scripts used for various tasks ranging from user login to support technician simulating a user context. These scripts are centralized on our file server (through DFS) for easier management. Some of them are run at logon, some are run through published Citrix applications. We have applied a policy for the whole domain and all users that sets the Powershell execution policy to "unrestricted" so that the scripts can run from the file server. This works perfectly fine for logon script (at least, so far) but for scripts that are run later (usually through a published application but the same applies when using terminal services and a full desktop), the results are inconsistent: some users can run the script fine, some are always prompted in the powershell console for letting the scripts run. I cannot find anything that could cause this behavior and it's really inconsistent: if I start powershell manually and runs get-executionpolicy, I am told that the current policy is unrestricted. Yet, if from the same session I try to run a script through a program that calls powershell <script file name> <parameters> I get prompted before the script can run. What could cause such behavior ?

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  • Using NHibernate to select entities based on activity of children entities

    - by mannish
    I'm having a case of the Mondays... I need to select blog posts based on recent activity in the post's comments collection (a Post has a List<Comment> property and likewise, a Comment has a Post property, establishing the relationship. I don't want to show the same post twice, and I only need a subset of the entities, not all of the posts. First thought was to grab all posts that have comments, then order those based on the most recent comment. For this to work, I'm pretty sure I'd have to limit the comments for each Post to the first/newest Comment. Last I'd simply take the top 5 (or whatever max results number I want to pass into the method). Second thought would be to grab all of the comments, ordered by CreatedOn, and filter so there's only one Comment per Post. Then return those top (whatever) posts. This seems like the same as the first option, just going through the back door. I've got an ugly, two query option I've got working with some LINQ on the side for filtering, but I know there's a more elegant way to do it in using the NHibernate API. Hoping to see some good ideas here.

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  • Winform without .NET framework ?

    - by Karthick
    Hi, I have to create few forms and give it as direct EXE (instead of installer, which installs .NET framework, which the end user is not happy, they want something they can directly open and work). I know it can be done as web, but am looking for winforms? Please suggest which tool/technology can handle this? Thanks, Karthick

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  • What C# mocking framework to use?

    - by Corin
    I want to start using mock objects on my next C# project. After a quick google I've found there are many: NMock EasyMock.NET TypeMock Isolator Commercial / Paid Rhino Mocks Moq So my question is: what one is your favourite .NET mocking framework and why?

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  • Range-based `for` statement definition redundancy

    - by GMan - Save the Unicorns
    Looking at n3092, in §6.5.4 we find the equivalency for a range-based for loop. It then goes on to say what __begin and __end are equal to. It differentiates between arrays and other types, and I find this redundant (aka, confusing). It says for arrays types that __begin and __end are what you expect: a pointer to the first and a pointer to one-past the end. Then for other types, __begin and __end are equal to begin(__range) and end(__range), with ADL. Namespace std is associated, in order to find the std::begin and std::end defined in <iterator>, §24.6.5. However, if we look at the definition of std::begin and std::end, they are both defined for arrays as well as container types. And the array versions do exactly the same as above: pointer to the first, pointer to one-past the end. Why is there a need to differentiate arrays from other types, when the definition given for other types would work just as well, finding std::begin and std::end? Some abridged quotes for convenience: §24.6.5 The range-based for statement — if _RangeT is an array type, begin-expr and end-expr are __range and __range + __bound, respectively, where __bound is the array bound. If _RangeT is an array of unknown size or an array of incomplete type, the program is ill-formed. — otherwise, begin-expr and end-expr are begin(_range) and end(_range), respectively, where begin and end are looked up with argument-dependent lookup (3.4.2). For the purposes of this name lookup, namespace std is an associated namespace. and §24.6.5 range access template T* begin(T (&array)[N]); Returns: array. template T* end(T (&array)[N]); Returns: array + N.

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  • An EventBus framework for Android

    - by Benju
    Can anybody recommend a good framework for handling events in Android? These would be business logic events like UserUpdatedEvent. I am looking for something similar to the EventBus provided by GWT-EVENT but for a JVM that supports weak-references.

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