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• Declarative authorization and the if_attribute not working...

  - by ro

  I've been having almost the same issues as Victor Martin (you can see the questions asked here). I've got declarative authorization working for just about everything that doesn't involve using conditionals. E.g. has_permission_on :users, :to => [:edit, :update, :destroy] do if_attribute :user => is { current_user } end Are there any common pitfalls with Declarative Authorization? I'm using authlogic and I'm suspicious the 'current_user' method in the application controller might be the source of the problem.

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• github url style

  - by Alex Le

  Hi all, I wanted to have users within my website to have their own URL like http://mysite.com/username (similar to GitHub, e.g. my account is http:// github. com/sr3d). This would help with SEO since every profile is under the same domain, as apposed to the sub-domain approach. My site is running on Rails and Nginx/Passenger. Currently I have a solution using a bunch of rewrite in the nginx.conf file, and hard-coded controller names (with namespace support as well). I can share include the nginx.conf here if you guys want to take a look. I wanted to know if there's a better way of making the URL pretty like that. (If you suggest a better place to post this question then please let me know) Cheers, Alex

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• will paginate, nested routes, ruby, rails

  - by Sam

  I'm trying to get will paginate to link to my nested route instead of the regular posts variable. I know I'm supposed to pass some params to paginate but I don't know how to pass them. Basically there is an array stored in @posts and the other param paginate has access to is category_id. The nested route is /category/1/posts but hitting next and previous on will paginate returns a url like this posts?page=1&category_id=7. <%= will_paginate @most_recent_posts "What do I do here?" %> This is the result of Yannis's answer: In your controller you can do: @posts = @category.posts.paginate And in your view: <%= will_paginate(@post) %> Doing this comes up with the following URL posts?page=2&post_category_id=athlete_management routes.rb #there are more routes but these are the relevant ones map.resources :posts map.resources :post_categories, :has_many => :posts solution map.resources :post_categories do |post_category| post_category.resources :posts end map.resources :posts Had to declare the resource after the block Thanks stephen!

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• iPhone in-App email

  - by varunwg

  Hi, I am using iPhone in-App email feature to send email thru my app. The email goes fine but I am having hard time trying to figure out how to retrive email addresses to which the email was sent. MFMailComposeViewController *picker = [[MFMailComposeViewController alloc] init]; picker.mailComposeDelegate = self; [picker setSubject:@"Test"]; // Fill out the email body text NSString *emailBody = [NSString stringWithFormat:@"This is a test data"]; [picker setMessageBody:emailBody isHTML:YES]; picker.navigationBar.barStyle = UIBarStyleBlack; [self presentModalViewController:picker animated:YES]; [picker release]; Is there any way to retrive those email addresses from this function: - (void)mailComposeController:(MFMailComposeViewController*)controller didFinishWithResult:(MFMailComposeResult)result error:(NSError*)error Thanks!

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• Continual crashing in MKMapView annotationContainer:viewForAnnotation

  - by Oscar Goldman

  I've looked at other reports on this, and none seems to apply. Our app is being crippled by frequent (but not reliably reproducible) crashes like this: Reports of this turn up a lot on the Web, but many seem to go unsolved. I'm not doing anything crazy, just showing the user position and one marker on the map. I followed the examples I could find, and I've looked at the code for goofs but can't find any. Here's how my MapView delegate handles viewForAnnotation: The crash appears to be associated with a change in the user's location, but once the user-location marker is added, I don't mess with it. When I need to refresh the one other map marker, I skip the user marker when removing the other one: The delegate is the controller for the whole screen, so it's not being deallocated; the crash occurs while the screen is up. Not that it matters, but the map display looks like this: Any guesses or insight would be much appreciated! This is on iOS 5.0.1.

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• How to determine UINavigationBar custom view text/shadow color for different styles in UISplitViewCo

  - by Cal

  I have a splitview with a pop over master view using UINavigationController. The problem is I have some custom text views in the header of the nav controller and when it switches to the pop-over view the style of the nav bar changes. This makes the colors of the text clash since they are no longer using the correct settings for the new navbar style. How do you determine the proper default text colors for a given navigation bar (style)? The issue is because I'm using a split view in the iPad but you should be able to determine the proper colors for an iPhone nav bar too.

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• Is there a way to undo Mocha stubbing of any_instance in Test::Unit

  - by Craig Walker

  Much like this question, I too am using Ryan Bates's nifty_scaffold. It has the desirable aspect of using Mocha's any_instance method to force an "invalid" state in model objects buried behind the controller. Unlike the question I linked to, I'm not using RSpec, but Test::Unit. That means that the two RSpec-centric solutions there won't work for me. Is there a general (ie: works with Test::Unit) way to remove the any_instance stubbing? I believe that it's causing a bug in my tests, and I'd like to verify that.

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• strang asp.net mvc behavior

  - by ooo

  i have a controlled called AppController. i have 2 actions: Details and Delete both pass in int id as the parameter to the action WHen i go to: mysite/App/Details/100 I can catch it in the controller details action but when i go to mysite/App/Delete/100 The breakpoint never hits and i get this in the browser: Server Error in '/' Application. The resource cannot be found. Description: HTTP 404. The resource you are looking for (or one of its dependencies) could have been removed, had its name changed, or is temporarily unavailable. Please review the following URL and make sure that it is spelled correctly. any idea what might be happening?

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• NSPredicate acting strange in NSFetchedResultsController

  - by Scott Langendyk

  I feel as if this should be very simple, but it's behaving strangely. I have 3 entities, with a relationship as such Entity A <-- Entity B <<-- Entity C I have an NSFetchedResults controller and I'm trying to filter the results of Entity A using the following predicate. [NSPredicate predicateWithFormat:@"NONE entityB.entityC == %@", self.entityC]; When I try and run the app, the output shows no results. I can alter the predicate slightly to: [NSPredicate predicateWithFormat:@"ANY entityB.entityC == %@", self.entityC]; And it shows me only the results that I want it to filter out. Why is this happening?

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• Parsing atom/rss feed containing multiple <link> tags with Haml on RoR

  - by fenderplayer

  So, firstly, heres an atom feed snippet which i am trying to parse: // http://somelink.com/atom <feed xmlns="http://www.w3.org/2005/Atom"> <entry> <title>Title Here</title> <link href="http://somelink.com/link1&amp;amp;ref=rss" rel="alternate" /> <link href="http://somelink.com/link2&amp;amp;ref=rss" rel="tag:somelink.com/apply_url"/> ... </entry> i pull the atom feed like so, // In controller index method @rss = SimpleRSS.parse open('http://somelink.com/atom') Then i output the response in the view, which i am writing using haml, as follows: - @rss.entries.each do |item| .title-div = item.title .title-link = item.link //outputs the first link I could run a second loop for the links but is there a way to get the second link without it? Like reading the "rel" attribute and outputting the correct link? How do i do this in haml/rails?

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• Extend LDAP Membership to append a prefix/sufix to the username

  - by Romias

  Our web applications are using LDAP Membership Provider to authenticate and register users in Active Directory. In order to allow users to provide usernames that exist in other applications, we need to add a prefix in its username and it should be as transparent and painless as possible. What I need is a way to extend the LDAP Membership Provider to be able to add (concatenate) a prefix to the username just before Membership authenticate or register it. For example, if user input is "JohnS" in application 1... I want to authenticate: "App1_JohnS". How could I extend the membership to accomplish this? Any idea what is triggered just before authenticate and register (create user)? Update: Each web app has an "OU" in AD where create users to and authenticate from. But as it is just ONE Active Directory Controller the usernames must be unique. We need to solve this issue using Membership providers and not adding more ADs.

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• How to add request validation errors to ModelStateDictionary in ASP.NET MVC?

  - by Morten Christiansen

  Investigating the security of a system I'm building with ASP.NET MVC 2 led me to discover the request validation feature of ASP.NET - a very neat feature, indeed. But obviously I don't just want to present the users with the Yellow Screen of Death when they enter data with HTML in, so I'm out to find a better solution. My idea is to find all the fields that have invalid data and add them to the ModelStateDictionary before invoking the action such that they automatically appear in the UI as error messages. After googling this a bit it appears that no one have implemented this before which I find puzzling since it seems so obvious. Does anyone here have a suggestion on how to do this? My own idea is to supply a custom ControllerActionInvoker to the controller, as described here, that somehow checks for this and modifies the ModelStateDictionary but I'm stuck on how to do this last bit. Just catching HttpRequestValidationException exceptions does not seem a useful approach since it does not actually contain all the information I need.

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• accepts_nested_attributes_for ignore blank values

  - by Mike

  i have class Profile has_many :favorite_books, :dependent => :destroy has_many :favorite_quotes, :dependent => :destroy accepts_nested_attributes_for :favorite_books, :allow_destroy => true accepts_nested_attributes_for :favorite_quotes, :allow_destroy => true end I have a dynamic form where you press '+' to add new textareas for creating new favorites. What i want to do is ignore the blank ones, I find this harder to sort through in the update controller than a non nested attribute. What i have temporarily is a hack in the after_save callback deleting the empty records. Whats the most rails way to ignore these blank objects? I dont want validation and errors, just a silent deletion/ignore.

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• ASP.NET MVC 2.0: How to read querystring value

  - by Shyju

  I am trying to build a small ASP.NET MVC 2 application.I have a controller class with the below method in it public ActionResult Index() { TestMvc.Models.PersonalInformation objPerson = new TestMvc.Models.PersonalInformation(); objPerson.FirstName = "Shyju"; objPerson.LastName = "K"; objPerson.EmailId="[email protected]"; return View(objPerson); } And when the page (View) being called, i can see this data there as my view has these data's displaying. Now i want to know how can i pass a query string in the url and use that id to build the PersonalInformation object.Hoe can i read the querystring value ? Where to read ? I want the quesrtstring to be like http://www.sitename/user/4234 where 4234 is the user id

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• multiple partial views mvc 2

  - by nik1

  Hello World! Hi guys, I have a master page with two partial viewson it both of which submit to the AccountController. When I click Submit on either of the partial views the following happens: If I declare the partial views like Html.BeginForm("PartialAction1","Account") it redirects to that partial view on clicking submit instead bringing back the default HomeContoller Index view with validation errors. If I declare the partial view forms as Html.BeginForm() then it returns to the default index view of the home controller. But it actually fires both partial view actions inside the AccountController and thus returns validation errors for both partial views simultaneously. What I want is version 2 above with only one action firing instead of two. Am I missing, hopefully, something very simple? I hoping someone can help me or point me in the right direction. Here's the code from my master page for the partial views Html.Action("Login1","Account") Html.Action("Login2", "Account") Many Thanks!

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• angular js scope property is undefined

  - by user2071301

  why is $scope.orderBy undefined? Shouldnt it be "test" ? http://jsfiddle.net/XB4QA/4/ var app = angular.module("Foo", []); app.directive("two", function () { return { scope: { orderBy: '@' }, restrict: 'E', transclude: true, controller: function ($scope, $element, $attrs) { console.log($scope.orderBy); // is undefined, why? }, template: '<div></div>', replace: true }; }); <div ng-app="Foo"> <two order-by="test">test</two> </div>

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• What does this error states in asp.net-mvc?

  - by Pandiya Chendur

  I have repository class in asp.net mvc which has this, public Material GetMaterial(int id) { return db.Materials.SingleOrDefault(m => m.Mat_id == id); } And my controller has this for details action result, ConstructionRepository consRepository = new ConstructionRepository(); public ActionResult Details(int id) { Material material = consRepository.GetMaterial(id); return View(); } But why i get this error, The parameters dictionary contains a null entry for parameter 'id' of non-nullable type 'System.Int32' for method 'System.Web.Mvc.ActionResult Details(Int32)' in 'CrMVC.Controllers.MaterialsController'. To make a parameter optional its type should be either a reference type or a Nullable type. Parameter name: parameters Any suggestion...

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• Why is IHttpAsyncHandler being called over IHttpHandler?

  - by Tim Hardy

  I made a custom handler that derives from MvcHandler. I have my routes using a custom RouteHandler that returns my new handler for GetHttpHandler(), and I override ProcessRequest() in my custom handler. The call to GetHttpHandler is triggering a breakpoint and my handler's constructor is definitely being called, but BeginProcessRequest() is being called on the base MvcHandler instead of ProcessRequest(). Why are the async methods being called when I haven't done anything to call them? I don't want asynchronous handling, and I certainly didn't do anything explicit to get it. My controllers all derive from Controller, not AsyncController. I don't have the source code with me right now, but I can add it later if needed. I was hoping someone might know some of the reasons why BeginProcessRequest might be called when it's not wanted.

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• How can I make named_scope in Rails return one value instead of an array?

  - by sameera207

  I want to write a [named scope] to get a record from its id. For example, I have a model called Event, and I want to simulate Event.find(id) with use of named_scope for future flexibility. I used this code in my model: named_scope :from_id, lambda { |id| {:conditions => ['id= ?', id] } } and I call it from my controller like Event.from_id(id). But my problem is that it returns an array of Event objects instead of just one object. Thus if I want to get event name, I have to write event = Event.from_id(id) event[0].name while what I want is event = Event.from_id(id) event.name Am I doing something wrong here?

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• Advanced Rails Routing of short URL's and usernames off of root url

  - by Michael Waxman

  I want to have username URL's and Base 58 short URL's to resources both off of the root url like this: http://mydomain.com/username #=> goes to given user http://mydomain.com/a3x9 #=> goes to given story I am aware of the possibilities of a user names conflicting with short urls, and I have a workaround, but what I can't figure out is the best way to set this up in rails. Can I do it in rails routes? Should I do something with a piece of Rack middleware? Should I set up a routing controller? Please let me know the best way to do this. Thanks so much!

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• routing problem in codeigniter

  - by Obay

  I'm new to CodeIgniter and routing. I have a Login controller whose index() loads up a view to enter a username/password. In the view, the form has action="login/authenticate". Login-authenticate() determines if the login is valid or not. If it's valid, redirect('lobby'), if not redirect('login') routes.php: $route['default_controller'] = "login" config.php: $config['base_url'] = "http://localhost/dts/"; $config['index_page'] = "index.php"; The problem is that when i go to http://localhost/dts/ , click login, I am correctly (?) redirected to http://localhost/dts/login/authenticate but the browser says Object not found!. But when I go to http://localhost/dts/index.php/ (with trailing slash), it works correctly (I get redirected to http://localhost/dts/index.php/login/authenticate, and am logged in) I tried removing "index.php" by using a .htaccess: RewriteEngine on RewriteCond $1 !^(index\.php|images|robots\.txt) RewriteRule ^(.*)$ /index.php/$1 [L] and it would no longer open even the http://localhost/dts/ I'm confused.. what's going on?

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• Very Intermittent Orientation on Device & Simulator

  - by Michael Waterfall

  I've noticed that I'm getting very intermittent orientation on my device & the simulator. I have a modal view controller that I present, and that is the only thing in my app which supports rotation. If I launch the app in portrait without moving the device, open the modal VC and then rotate the device, it usually works. However sometimes if I open the app holding the device in landscape, then rotate to portrait, launch the VC and then rotate the device, no rotation occurs. It seems very intermittent. Sometimes if I launch the app in portrait mode and then open the VC and rotate the device, nothing happens, and until I quit and relaunch it no orientation occurs in the app. It's strange because 50% of the time it works! Whenever I launch it through Xcode and set breakpoints in shouldAutorotateToInterfaceOrientation it always works! Anyone ever had this or know what's going on?

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• Opening Another Xib form an Xib

  - by Goods

  Not a Noob as yesterday, but still green. I have been playing around with the code that Elisabeth Robson has put together HERE. I have a UITabbarcontoller and a IUNavigationController they seem to work fine. I have a UITableviewController to which I loads my NSMutable array. The user clicks a cell and didSelectRowAtIndexPath xib is loaded onto the stack. I put a 'Learn More' button on the current xib(BookDetailView). I've tried a few approaches to load a newer xib when the 'Learn More' button is pressed but have failed. Ive Tried IBAction and Pushing the Newer xib to the top. Do I need to create another view controller? Thanks for looking.

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• How do you interface with a USB to Parallel adapter?

  - by Hans

  I'm currently doing a project where I have to interact with a circuit I made through the parallel port of a computer. However, my computer doesn't have a parallel port so I borrowed a Parallel to USB adapter cable. The cable didn't come with any drivers, but it's recognized by the device manager as a "USB Printing Support" controller, under the USB section. It seems that old parallel printers can be plugged in and work properly without any problems. So my question is, if I write a program in Java that tries to interact with a parallel port directly, will it work? And if not, can anyone give me some pointers as to what I need to do to interact with it? Thanks.

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• TFS Build Configuration Vs Test Manager

  - by Ben

  Hi, I have been tasked with setting up TFS 2010 for my company. After setting up TFS and configuring the basics (New collection, project, adding solution to souce control), i thought i would try out some unit testing with it. I configured the Build Controller and Agent for my solution and added in some basic unit tests. These ran ok and did exactly what i would expect (i broke the build then ran the Build Definition, and it showed me where the errors were). My question is, what advantages (apart from the "Black box call stack logger") does Test Manager have over the TFS builds? Is it worth the extra effort of setting that up and configuring it? Only knowing the basics of what Test Manager is, that may be a very naive question to ask, and i appoligise if it is. Thanks

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