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  • AJAX Web Application Design

    - by Colonel Sponsz
    I'm working on a personal project to build a small web app that is built using AJAX requests and talks to a RESTful API rather than traditional HTML pages and form submissions. Are there any online articles or tutorials or any books that people could recommend that cover design patterns for this kind of thing?

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  • FQL: Facebook application php

    - by user341879
    Hello I have implemented the following $fql = "SELECT uid2 FROM friend WHERE uid1=" . $uid; $param = array( 'method' = 'fql.query', 'query' = $fql, 'callback' = '' ); $fqlResult = $facebook-api($param); Now I need to fetch elements from $ fqlResult. How should I do this??

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  • Newbie can't get Tomcat to reload Flex/BlazeDS application

    - by Captain Aporam
    I'm an experienced 'old school' programmer, but new to Tomcat and Flex. I've followed the getting started for BlazeDS. I'm making changes to the Flex code using Flex Builder 3, but I just can't get the changes to show up when I refresh the page on my client. Server and client are separate physical machines, I've even re-started the server hardware. One curious thing, even when I re-started the server I didn't have to re-login to the Tomcat manager page - I didn't restart my client, I guess it remembers my session? TIA, getting frustrated - like my flex page is 'write once'.

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  • Creating notes on facebook through FBConnect in iPhone application

    - by Vin
    Hi All, I have tried FBConnect for iPhone and am able to create/manage sessions and upload pictures successfully. What I can't sort out is, how to create and edit notes. The Facebook documentation says that notes.create query takes three arguments:title, content and uid. It seems I am unable to form the right request for the required query. Please help me on this. Thanks in advance.

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  • how to use Facebook.showPermissionDialog(‘publish_stream,read_stream’) in asp.net application for th

    - by ibrahimkhan
    Hi All, I am using Facebook.showPermissionDialog("publish_stream,read_stream"). It is displaying dialog in pageload. In facebook wikipage they are showing ex: Facebook.showPermissionDialog('publish_stream,read_stream', ondone, enableProfileSelector, [1234,2345]); Can any one explain me here : what is - ondone, enableProfileSelector, [1234,2345]);?? i know these[1234,2345] are pageids. How to display these things to pageadmin only.?? Pls help me regarding this. Thanks in advance, Ibrahim.

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  • IIS7 folder permissions for web application

    - by Andrew
    I am using windows authentication without impersonation on my company's intranet website with IIS7. Under IIS7, what account is used to access the folder which contains my web app using these settings? Would it be IIS_IUSRS? Or NETWORK SERVICE? Or another I don't know about?

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  • IoC and dataContext disposing in asp.net mvc 2 application

    - by zerkms
    I have the Global.asax like the code below: public class MvcApplication : System.Web.HttpApplication { public static void RegisterRoutes(RouteCollection routes) { // .... } protected void Application_Start() { AreaRegistration.RegisterAllAreas(); RegisterRoutes(RouteTable.Routes); ControllerBuilder.Current.SetControllerFactory(typeof(IOCControllerFactory)); } } public class IOCControllerFactory : DefaultControllerFactory { private readonly IKernel kernel; public IOCControllerFactory() { kernel = new StandardKernel(new NanocrmContainer()); } protected override IController GetControllerInstance(RequestContext requestContext, Type controllerType) { if (controllerType == null) return base.GetControllerInstance(requestContext, controllerType); var controller = kernel.TryGet(controllerType) as IController; if (controller == null) return base.GetControllerInstance(requestContext, controllerType); var standartController = controller as Controller; if (standartController is IIoCController) ((IIoCController)standartController).SetIoc(kernel); return standartController; } class NanocrmContainer : Ninject.Modules.NinjectModule { public override void Load() { // ... Bind<DomainModel.Entities.db>().ToSelf().InRequestScope().WithConstructorArgument("connection", "Data Source=lims;Initial Catalog=nanocrm;Persist Security Info=True;User ID=***;Password=***"); } } } In this case if somewhere it is the class, defined like: public class UserRepository : IUserRepository { private db dataContext; private IUserGroupRepository userGroupRepository; public UserRepository(db dataContext, IUserGroupRepository userGroupRepository) { this.dataContext = dataContext; this.userGroupRepository = userGroupRepository; } } then the dataContext instance is created (if no one was created in this request scope) by Ninject. So the trouble now is - where to invoke dataContext method .Dispose()?

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  • Windows forms application blocks after station lock

    - by Silviu
    We're having a serious issue at work. We've discovered that after the station where the client was running is locked/unlocked the client is blocked. No repaint. So the UI thread is blocked with something. Looking at the callstack of the UI thread (thread 0) using windbg we see that a UserPreferenceChanged event gets raised. It is marshalled through a WindowsFormsSynchronizationContext using it's controlToSend field to the UI. It gets blocked by a call to the marshalling control. The method called is MarshaledInvoke it builds a ThreadMethodEntry entry = new ThreadMethodEntry(caller, method, args, synchronous, executionContext); This entry is supposed to do the magic. The call is a synchronous call and because of that (still in the MarshaledInvoke of the Control class) the wait call is reached: if (!entry.IsCompleted) { this.WaitForWaitHandle(entry.AsyncWaitHandle); } The last thing that i can see on the stack is the WaitOne called on the previously mentioned AsyncWaitHandle. This is very annoying because having just the callstack of the runtime and not one of our methods being invoked we cannot really point to a bug in our code. I might be wrong, but I'm guessing that the marshaling control is not "marshaling" to the ui thread. But another one...i don't really know which one because the other threads are being used by us and are blocked...maybe this is the issue. But none of the other threads are running a message loop. This is very annoying. We had some issues in the past with marshaling controls to the right ui thread. That is because the first form that is constructed is a splash form. Which is not the main form. We used to use the main form to marshal call to the ui thread. But from time to time some calls would go to a non ui thread and some grids would broke with a big red X on them. I fixed this by creating a specific class: public class WindowsFormsSynchronizer { private static readonly WindowsFormsSynchronizationContext = new WindowsFormsSynchronizationContext(); //Methods are following that would build the same interface of the synchronization context. } This class gets build as one of the first objects in the first form being constructed. We've noticed some other strange thing. Looking at the heap there are 7 WindowsFormsSynchronizationContext objects. 6 of these have the same instance of controlToSend, and the other one has some different instance of controlToSend. This last one is the one that should marshal the calls to the UI. I don't have any other idea...maybe some of you guys had this same issue?

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  • Suggestions for Single-Page Web Application Design?

    - by DaveDev
    My view is that unless you need to change the basic structure of the user interface, you should not have to reload the page at all for any user interactions. I'd like to approach my next ASP.NET MVC project with this in mind. Can anyone suggest any principles, patterns or practices* I should consider? Excellent book, btw. Still trying to wrap my head around some of the concepts though. I thought a question like this would help link the theory to a practical design. Thanks

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  • Heroku and Refinerycms: Application failed to start ~ attachment_fu problem

    - by John Deely
    Ok so I'm trying to get Refinerycms working with Heroku, and I'm new at all of this. I've set up an amazon s3 account and added keys and ids to the amazon_s3.yml files. When launched on Heroku at gart.heroku.com I get the following error: App failed to start /disk1/home/slugs/141557_e8490b3_d5eb/mnt/vendor/plugins/attachment_fu/lib/technoweenie/attachment_fu/backends/s3_backend.rb:187:in read': No such file or directory - /disk1/home/slugs/141557_e8490b3_d5eb/mnt/config/amazon_s3.yml (Errno::ENOENT) from /disk1/home/slugs/141557_e8490b3_d5eb/mnt/vendor/plugins/attachment_fu/lib/technoweenie/attachment_fu/backends/s3_backend.rb:187:inincluded' from /disk1/home/slugs/141557_e8490b3_d5eb/mnt/vendor/plugins/attachment_fu/lib/technoweenie/attachment_fu.rb:123:in include' from /disk1/home/slugs/141557_e8490b3_d5eb/mnt/vendor/plugins/attachment_fu/lib/technoweenie/attachment_fu.rb:123:inhas_attachment' from /disk1/home/slugs/141557_e8490b3_d5eb/mnt/app/models/image.rb:13 from /usr/local/lib/ruby/site_ruby/1.8/rubygems/custom_require.rb:31:in gem_original_require' from /usr/local/lib/ruby/site_ruby/1.8/rubygems/custom_require.rb:31:inrequire' from /usr/local/lib/ruby/gems/1.8/gems/activesupport-2.3.5/lib/active_support/dependencies.rb:158:in require' from /usr/local/lib/ruby/gems/1.8/gems/activesupport-2.3.5/lib/active_support/dependencies.rb:265:inrequire_or_load' ... 42 levels... from /usr/local/lib/ruby/gems/1.8/gems/rack-1.0.1/lib/rack/builder.rb:29:in instance_eval' from /usr/local/lib/ruby/gems/1.8/gems/rack-1.0.1/lib/rack/builder.rb:29:ininitialize' from /home/heroku_rack/heroku.ru:1:in `new' from /home/heroku_rack/heroku.ru:1 The s3_backend.rb line 187 contains: @@s3_config = @@s3_config = YAML.load(ERB.new(File.read(@@s3_config_path)).result)[RAILS_ENV].symbolize_keys Any help would be great!

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  • Dynamic where clause using Linq to SQL in a join query in a MVC application

    - by jhoefnagels
    Dear .Net Linq experts, I am looking for a way to query for products in a catalog using filters on properties which have been assigned to the product based on the category to which the product belongs. So I have the following entities involved: Products -Id -CategoryId Categories [Id] Properties [Id, CategoryId] PropertyValues [Id, PropertyId] ProductProperties [ProductId, PropertyValueId] When I ad a product to the catalog, multiple ProductProperties will be added based on the category and I would like to be able to filter all products from a category by selecting values for one or more properties. I will gather all filters, which I will hold in a list, by reading the URL. Now it is time to actually get the products based on multiple properties and I have been trying to find the right strategy but untill now it does not really work. Is there a way to make this work without writing SQL? I was trying something like this: productsInCategory = ProductRepository.Where(p => p.Category.Name == category); foreach (PropertyFilter pf in filterList) { productsInCategory = (from product in productsInCategory join pp in ProductPropertyRepository on product.Id equals pp.ProductId where pp.PropertyValueId == pf.ValueId select product); }

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  • .NET and 64-bit application

    - by user54064
    I want to make existing .NET applications (WinForms and WebForms) run on 64-bit machines, optimized to take advantage of more memory available on 64-bit machines. What do I need to do to the applications to take advantage of the memory? Do I just select the target CPU as 64-bit? What is the advantage of selecting the target versus just compiling the app for All CPUs and have the .NET optimize the app locally? Will Crystal Reports (in VS 2008) run optimized for 64-bit and take advantage of the upper memory?

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  • Connecting to a SQL Server Compact Edition (.sdf) from an MFC application

    - by Hazerd
    Hey ! I'm building an MFC app in Visual Studio 2008 which classifies textures and I need some sort of lightweight database to hold the characteristics (just some doubles and strings) which can be: -carried around with the app on different computers; -be able to perform queries on it from the app (searches , updates ,inserts ,etc); Currently I'm looking into SQL compact edition because it was very easy to create from Visual Studio ( I also need only one table) but I having a hard time connecting and updating the db from C++. This is what I've found on msdn regarding C++ and SQLCE: public: void createSqlCeConnection(){ SqlCeConnection* myConnection = new SqlCeConnection(); myConnection->ConnectionString = "DataSource = blabla.sdf"; MessageBox::Show(String::Format( S"Connection State: {0}", __box(myConnection->State))); } Unfortunately my experience with .net apps is pretty limited. Hopefully you bright minds could tell me if I'm on the right path and what links and includes should I add for this to work with an C++ MFC projects. Thanks !

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  • SQL Query slow in .NET application but instantaneous in SQL Server Management Studio

    - by user203882
    Here is the SQL SELECT tal.TrustAccountValue FROM TrustAccountLog AS tal INNER JOIN TrustAccount ta ON ta.TrustAccountID = tal.TrustAccountID INNER JOIN Users usr ON usr.UserID = ta.UserID WHERE usr.UserID = 70402 AND ta.TrustAccountID = 117249 AND tal.trustaccountlogid = ( SELECT MAX (tal.trustaccountlogid) FROM TrustAccountLog AS tal INNER JOIN TrustAccount ta ON ta.TrustAccountID = tal.TrustAccountID INNER JOIN Users usr ON usr.UserID = ta.UserID WHERE usr.UserID = 70402 AND ta.TrustAccountID = 117249 AND tal.TrustAccountLogDate < '3/1/2010 12:00:00 AM' ) Basicaly there is a Users table a TrustAccount table and a TrustAccountLog table. Users: Contains users and their details TrustAccount: A User can have multiple TrustAccounts. TrustAccountLog: Contains an audit of all TrustAccount "movements". A TrustAccount is associated with multiple TrustAccountLog entries. Now this query executes in milliseconds inside SQL Server Management Studio, but for some strange reason it takes forever in my C# app and even timesout (120s) sometimes. Here is the code in a nutshell. It gets called multiple times in a loop and the statement gets prepared. cmd.CommandTimeout = Configuration.DBTimeout; cmd.CommandText = "SELECT tal.TrustAccountValue FROM TrustAccountLog AS tal INNER JOIN TrustAccount ta ON ta.TrustAccountID = tal.TrustAccountID INNER JOIN Users usr ON usr.UserID = ta.UserID WHERE usr.UserID = @UserID1 AND ta.TrustAccountID = @TrustAccountID1 AND tal.trustaccountlogid = (SELECT MAX (tal.trustaccountlogid) FROM TrustAccountLog AS tal INNER JOIN TrustAccount ta ON ta.TrustAccountID = tal.TrustAccountID INNER JOIN Users usr ON usr.UserID = ta.UserID WHERE usr.UserID = @UserID2 AND ta.TrustAccountID = @TrustAccountID2 AND tal.TrustAccountLogDate < @TrustAccountLogDate2 ))"; cmd.Parameters.Add("@TrustAccountID1", SqlDbType.Int).Value = trustAccountId; cmd.Parameters.Add("@UserID1", SqlDbType.Int).Value = userId; cmd.Parameters.Add("@TrustAccountID2", SqlDbType.Int).Value = trustAccountId; cmd.Parameters.Add("@UserID2", SqlDbType.Int).Value = userId; cmd.Parameters.Add("@TrustAccountLogDate2", SqlDbType.DateTime).Value =TrustAccountLogDate; // And then... reader = cmd.ExecuteReader(); if (reader.Read()) { double value = (double)reader.GetValue(0); if (System.Double.IsNaN(value)) return 0; else return value; } else return 0;

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  • REST application, Transactions, Cache drop

    - by Julian Davchev
    Hi, I am building REST API in php with memcache layer on top for caching all resources. After some reading experience it turns out it's best when documents are as simple as posible...mainly due to dropping cache sequences. So if there is 'building','room' entities for the 'room' document I would only place the id of the 'building' and not the whole data of it. Then on api client side I would merge data as needed. Problem becomes when I need to update/insert (most cases more than one table). I update one resource but on second update system fails or whatever and there becomes database inconsistancies. I see several solutions: 1. Implement rest transactions which I find wrong and complex as idea is to be stateless and easy. 2. On update/insert actions I pass more complex data (not single entities) so I can force transactions on API level. But this will make it weird that your GET document structure is same as PUT document structure. And again somehow make drop sequences complex. Any pointers are more than welcome. Cheers,

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  • Form generator and data capture PHP application

    - by Tom
    Hi, Does anyone know of a PHP open source which can generate forms to be deployed across your website. These forms will collect and aggregate the data with in on database. There should also be the functionality to search across the forms (to generate reports and newsletter mailing lists) All the services I have found so far have been hosted solutions. Thanks Tom

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  • json problems with making a ruby on rails application

    - by Prince Merdz
    So I'm using Bitnami to learn Ruby on Rails. I have also previously tried the manual installation for ruby and rails and was met by the same problem so I thought I should try first the easy package deal of Bitnami. Anyway my problem with json is that it causes the bundle install to fail. First the auto bundle install that rails new does fails because of an ssl error. Which is easily solved by changing the source in the gemfile which is https to http. However when I try to bundle install it does another error when it tries to install json. C:\RubyStack-3.2.7-0\projects\testing>bundle install Fetching gem metadata from http://rubygems.org/......... Using rake (0.9.2.2) Using i18n (0.6.0) Using multi_json (1.3.6) Installing activesupport (3.2.8) Using builder (3.0.0) Installing activemodel (3.2.8) Using erubis (2.7.0) Using journey (1.0.4) Using rack (1.4.1) Using rack-cache (1.2) Using rack-test (0.6.1) Using hike (1.2.1) Using tilt (1.3.3) Using sprockets (2.1.3) Installing actionpack (3.2.8) Using mime-types (1.19) Using polyglot (0.3.3) Using treetop (1.4.10) Using mail (2.4.4) Installing actionmailer (3.2.8) Using arel (3.0.2) Using tzinfo (0.3.33) Installing activerecord (3.2.8) Installing activeresource (3.2.8) Using bundler (1.1.5) Using coffee-script-source (1.3.3) Using execjs (1.4.0) Using coffee-script (2.2.0) Using rack-ssl (1.3.2) Installing json (1.7.5) with native extensions Gem::Installer::ExtensionBuildError: ERROR: Failed to build gem native extension . C:/RUBYST~1.7-0/ruby/bin/ruby.exe extconf.rb creating Makefile make 0 [main] echo 5244 open_stackdumpfile: Dumping stack trace to echo.exe.sta ckdump make: *** [generator-i386-mingw32.def] Error 5 Gem files will remain installed in C:/RUBYST~1.7-0/ruby/lib/ruby/gems/1.9.1/gems /json-1.7.5 for inspection. Results logged to C:/RUBYST~1.7-0/ruby/lib/ruby/gems/1.9.1/gems/json-1.7.5/ext/j son/ext/generator/gem_make.out An error occured while installing json (1.7.5), and Bundler cannot continue. Make sure that `gem install json -v '1.7.5'` succeeds before bundling. This is the gem_make.out file it produces after trying to install json (btw windows also produces an error that echo.exe has stopped working while running the gem install json) C:/RUBYST~1.7-0/ruby/bin/ruby.exe extconf.rb creating Makefile make 0 [main] echo 5244 open_stackdumpfile: Dumping stack trace to echo.exe.stackdump make: *** [generator-i386-mingw32.def] Error 5 I can't even start learning ror for the setup is already a huge pain. (btw I have no prior experience with web frameworks, just desktop programming). help?

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  • Avoiding deployment when debugging an ASP.NET MVC application

    - by John Kaster
    Once an asp.net MVC project has a web deployment project associated with it, there doesn't seem to be a way to avoid deploying when you build the MVC project. I still want to be able to debug my MVC project locally and avoid deploying new versions of it. How do I configure the web deployment project to skip the deployment step when I'm trying to debug?

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  • All Countries States Cities and Zipcodes in a Application

    - by Rishav Rastogi
    Is there a way getting all countries, states,cities zipcodes/ in one single database. I have been looking all over. I discovered geonames.org, which has I guess all of the content. But there is no way to fetch that data directly. I am using rails. If there any helpers or Plugins, it'd be great. It would be awesome if there is a complete resource in any parsable format which I can use to get this database in place. Please recommend if you any thanks I do have the iso country code list but no States for some countries. Thanks in advance

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