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• Getting users latest tweet with Django

  - by Hanpan

  I want to create a function which grabs every users latest tweet from a specific group. So, if a user is in the 'authors' group, I want to grab their latest tweet and then finally cache the result for the day so we only do the crazy leg work once. def latest_tweets(self): g = Group.objects.get(name='author') users = [] for u in g.user_set.all(): acc = u.get_profile().twitter_account users.append('http://twitter.com/statuses/user_timeline/'+acc+'.rss') return users Is where I am at so far, but I'm at a complete loose end as to how I parse the RSS to get there latest tweet. Can anyone help me out here? If there is a better way to do this, any suggestions are welcome! I'm sure someone will suggest using django-twitter or other such libraries, but I'd like to do this manually if possible. Cheers

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• IOS restkit error

  - by user1302602

  I am sending a Post with object loader and getting this error in output window. FYI, My didFailWithError: delegate never got hit. Not sure why. `objectLoader:didFailWithError:]:` unrecognized selector `sent to class 0x123608` How did i find out what is 0x123608? I set the router in AppDelegate class and Mapping in AppDelegate too. here is a method in my class which inherit RKObjectLoaderDelegate. I am using shared singleton. [[RKObjectManager sharedManager] postObject:review usingBlock:^(RKObjectLoader *loader){ // loader.params=params, loader.objectMapping = [[RKObjectManager sharedManager].mappingProvider objectMappingForClass:[myclass class]]; loader.serializationMIMEType = RKMIMETypeJSON; // We want to send this request as JSON loader.method = RKRequestMethodPOST; loader.serializationMapping = [RKObjectMapping serializationMappingUsingBlock:^(RKObjectMapping* mapping) { [mapping mapAttributes:@"field1", @"field2",@"field3",nil]; }]; loader.targetObject = nil; loader.delegate = self; }]; }

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• Controlling symbol generation in Clojure macros

  - by mikera

  I'm trying (as a self-learning exercise) to create a Clojure macro that will generate code to apply a function to a sequence of integers and sum the result, e.g. f(0) + f(1) + f(2) + f(3) This is my attempt: (defmacro testsum [func n] `(fn [x#] (+ ~@( map (fn [i] `(~func x#)) (range n))))) However something seems to go wrong with the x# gensym and I end up with two different versions of x and hence the function doesn't work: (macroexpand '(testsum inc 3)) gives: (fn* ([x__809__auto__] (clojure.core/+ (inc x__808__auto__) (inc x__808__auto__) (inc x__808__auto__)))) This is pretty much exactly what I want apart from the different 809 and 808 versions of x..... What am I doing wrong? I thought that the auto gensym was meant to create a single unique symbol for exactly this kind of purpose? Is there a better way of doing this?

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• When to release a class with delegates

  - by Stefan Mayr

  A quick question to delegates. Lets say, CLASSA has a delegate defined: @protocol MyDelegate -(void) didFinishUploading; @end In CLASSB I create an instance of CLASS A -(void) doPost { CLASSA *uploader = [[CLASSA alloc] init]; uploader.delegate = self; // this means CLASSB has to implement the delegate uploader.post; } and also in CLASSB: -(void)didFinishUploding { } So when do I have to release the uploader? Because when I release it in doPost, it is not valid anymore in didFinishUploading. Thanks

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• Generate xml containing animation information from ms ppt 2003/07 file

  - by Ravisha

  I am planning to write an application which has UI from MS ppt.Here is where all the animation will be configured. My application will just read xmls containing animation configuration and run it on a target device(Cannot mention details w.r.t device right now ,apologies for that) Not necessary that i want xmls it self but if there is a way to get animation details directly from the ppt file i will be more than happy. I will be going ahead with C#.Net 3.0 with windows XP as my OS.MY office will be either 2003 or 07.Can switch to any of these versions Please give suggestions as what will be the starting point for the same.Thanks in advance Please Let me know if any more details are needed

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• Closing a window when it's "no longer needed".

  - by Mason Blier

  This is kind of a hard question to describe, and I've searched for about an hour now to no avail. Essentially, picture a small 'flyout' window like the Windows 7 Wireless Control or the Volume Slider from the system tray(notification area). When you click on the icon, the application pops up with focus, and if you click off of it, the window destroys itself. I thought it woudl be easily solved by simply having my window destroy it self when it loses focus (I've been listening for WM_KILLFOCUS), but the problem is, if the icon is clicked, my window does not always get focus. Since this isn't the case, if the user clicks my icon, and then clicks away because it was a mistake (on the desktop say), then how can I set my app to close? I've tried messing with SPY++ but checking the volume control / wireless control apps are proving difficult as they disappear when I try to get their window/process handles. Thanks!

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• Injecting relationships in DBIx::Class

  - by Carl

  I have a handful of DBIx::Class::Core objects that model various database tables. For some of those models (those that have a 'queue' column), I have another class inject subs (basically, to 'move' the model object along it's queue states). I'd like to also have that class inject has_many relationships ala class($name)->has_many('queue_history','MySchema::Result::QueueHistory', { 'foreign.record_id'=>'self.id' }, { where => { type => $name }} ); but I can't seem to get the relationships to register properly (keep getting "No Such Relationship" errors - however, when calling the relationship method on the sources provides back the relationship). Any clues as to what's wrong?

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• UIPickerview is not visible in additionally added view

  - by MaheshBabu

  Hi folks, i created an additional IBOutlet UIView. at the same time i place the IBOutlet UIPicker view in additional view. Give connections and add Addtional view as subview to main view. As [self.view addsubview:addtionalview]; I write this code in one button click event. Unfortunatly i got additional view in button click but it did n't show UIPicker. whats the wrong. I already have Two UIPicker view in main view. How can i add UIPicker view in added view. Thank u in advnace.

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• Why is TreeSet<T> an internal type in .NET?

  - by Justin Niessner

  So, I was just digging around Reflector trying to find the implementation details of HashSet (out of sheer curiosity based on the answer to another question here) and noticed the following: internal class TreeSet<T> : ICollection<T>, IEnumerable<T>, ICollection, IEnumerable, ISerializable, IDeserializationCallback Without looking too deep into the details, it looks like a Self-Balancing Binary Search Tree. My question is, is there anybody out there with the insight as to why this class is internal? Is it simply because the other collection types use it internally and hide the complexities of a BST from the general masses...or am I way off base?

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• Sharing a database connection with included classes in a Sinatra application

  - by imightbeinatree

  I'm converting a part of a rails application to its own sinatra application. It has some beefy work to do and rather than have a million helps in app.rb, I've separated some of it out into classes. Without access to rails I'm rewriting finder several methods and needing access to the database inside of my class. What's the best way to share a database connection between your application and a class? Or would you recommend pushing all database work into its own class and only having the connection established there? Here is what I have in in app.rb require 'lib/myclass' configure :production do MysqlDB = Sequel.connect('mysql://user:password@host:port/db_name') end I want to access it in lib/myclass.rb class Myclass def self.find_by_domain_and_stub(domain, stub) # want to do a query here end end I've tried several things but nothing that seems to work well enough to even include as an example.

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• Why does UITableViewCell have a contentView property?

  - by mystify

  What's the point of this contentView property? I mean: Why aren't all the subviews just added to self? Let me get that right: Every cell is a view (UITabvleViewCell is a UIView subclass). And this fat view has another fat view with same bounds sitting on top of it, called contentView. That contentView then carries all those other subviews. Now why didn't they save that extra chunk of memory? Is there any genius logic behind this decision? Would love to understand the reason for this.

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• UIScrollView Custom View rotation problem

  - by Markus

  I have a ScrollView with a Custom View. Now i have the problem with the rotation, the view has after the rotation not the correct frame pos / size. How can i call the CustomView after rotation for a reposition and resize the frame and content?! - (void)setupPage { NSUInteger nimages = 0; CGFloat cx = 0; for (; ; nimages++) { if (nimages == list.count) { break; } CustomStepView *stepView = [[CustomStepView alloc] initWithFrame:CGRectZero]; stepView.tag = nimages; if([[UIDevice currentDevice] orientation] == UIDeviceOrientationPortrait || [[UIDevice currentDevice] orientation] == UIDeviceOrientationPortraitUpsideDown) { stepView.frame = CGRectMake(cx, 0.0 , 768.0f, 926.0f); cx += 768.0; } else { stepView.frame = CGRectMake(cx, 0.0 , 1024.0f, 670.0f); cx += 1024.0; } [scrollView addSubview:stepView]; [stepView release]; } self.pageControl.numberOfPages = nimages; }

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• In ASP.NET MVC Should A Form Post To Itself Or Another Action?

  - by Sohnee

  Which of these two scenario's is best practice in ASP.NET MVC? 1 Post to self In the view you use using (Html.BeginForm) { ... } And in the controller you have [HttpGet] public ActionResult Edit(int id) [HttpPost] public ActionResult Edit(EditModel model) 2 Post from Edit to Save In the view you use using (Html.BeginForm("Save", "ControllerName")) { And in the controller you have [HttpGet] public ActionResult Edit(int id) [HttpPost] public ActionResult Save(EditModel model) Summary I can see the benefits of each of these, the former gives you a more restful style, with the same address being used in conjunction with the correct HTTP verb (GET, POST, PUT, DELETE and so on). The latter has a URL schema that makes each address very specific. Which is the correct way to do this?

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• How to programmatically generate WSDL from WCF service (Integration Testing)

  - by David Christiansen

  Hi All, I am looking to write some integration tests to compare the WSDL generated by WCF services against previous (and published) versions. This is to ensure the service contracts don't differ from time of release. I would like my tests to be self contained and not rely on any external resources such as hosting on IIS. I am thinking that I could recreate my IIS hosting environment within the test with something like... using (ServiceHost host = new ServiceHost(typeof(NSTest.HelloNS), new Uri("http://localhost:8000/Omega"))) { host.AddServiceEndpoint(typeof(NSTest.IMy_NS), new BasicHttpBinding(), "Primary"); ServiceMetadataBehavior behavior = new ServiceMetadataBehavior(); behavior.HttpGetEnabled = true; host.Description.Behaviors.Add(behavior); host.AddServiceEndpoint(typeof(IMetadataExchange), MetadataExchangeBindings.CreateMexHttpBinding(), "mex"); host.Open(); } Does anyone else have any better ideas?

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• How to add .Net3.5 dll into .Net2.0 project?

  - by macias

  I have a dll which is based on .net 3.5 -- it uses internally for example Linq, but the exposed API is straightforward, no fancy stuff. Since C# generics are resolved at compile time I assume that for calling party all it counts is API (all public parts). However when I try to use this dll from net2.0 project I get info, that the dll cannot be referenced because the dll or one of its dependencies requires a later version of .net framework. I can install any .net version I want on target computer (when entire app is installed), but I cannot change .net version for the project itself. So: how to solve this? When adding a C dll to this project I had no such problems, so are C# dlls self-contained or not?

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• Why Instruments report a leak?

  - by mike

  Hi, I am developing an iphone app. Instruments reported a leaked object ServiceTypes. Below is the relevant code. Does anyone have any ideas? Thanks a lot for your help. ServiceTypes *serviceTypes = [[ServiceTypes alloc] init]; if ([userConnection getServiceTypes:serviceTypes]) { if ([serviceTypes.types length] 0) { NSArray *array = [[NSArray alloc] initWithArray:[serviceTypes.types componentsSeparatedByString: SERVICE_TYPE_DELIMITOR]]; serviceRequestTypes = [[NSMutableArray alloc] initWithArray:array]; [array release]; } } [[self typesTableView] reloadData]; [serviceTypes release];

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• how to open another window and close the window that calls it

  - by user225269

  I have this code in userpage.php: <script langauge="JavaScript"><!-- function newWindow(fileName,windowName) { msgWindow=window.open(fileName,windowName); } //--></script> <a href="javascript:newWindow('1.html','window1')">Logout</a> And this code at index.php: <script language="JavaScript"><!-- function newWindow(fileName,windowName) { msgWindow=window.open(fileName,windowName); } function replaceURL(fileName) { newWindow(fileName,'window2'); self.close(); } //--></script> What Im trying to do is to call another window that show index.php. Calling it with the userpage.php. But the script doesn't close the window that calls it. Its a logout link. Because when I press back button after logging out. I end up seeing the page which only the user that has logged in can access

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• HA with nginx and cloud environment

  - by gotts

  I have a node in cloud environment which is used now as nginx and mongrels behind it. This is what nginx config looks like: upstream mongrel { server 127.0.0.1:8000; server 127.0.0.1:8001; server 127.0.0.1:8002; } I want to achieve the following: add another node nginx has to know about this new node automatically without stopping him, changing config(manually adding new node's mongrels) and starting it again. How can I make my load balancer(nginx) work in the way so it can be self-aware of nodes in cloud?

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• UITabViewController hide / make appear a view in code

  - by user3689827

  I am using Xcode 5.1.1. I have a UITabViewController and used Storyboard to add 10 views to it. It works great and I get the "more" and table view all for free. I only want to show some of the tabs at the beginning. Once the user logs in with their Google+ account (I actually got that working), then I want the rest of the tabs to appear, since they are content sensitive to the user logging in. I have found: [[[[self.tabBarController tabBar]items]objectAtIndex:3]setEnabled:FALSE]; But I do not want the items just greyed out, I want them removed completely until they log in. Thanks

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• Audio Player with Custom Buttons

  - by Bryan Wong

  I am developing a website but require help regarding a simple javascript audio player. Currently, I have four divs set up as the "buttons" : previous song; pause; play; and next song. Pretty much self explanatory, each button serves its obvious function, previous song, pause the song, play the song, and next song. With this in mind, I am also hoping to have the music start playing right after the page completes loading. I understand there are numerous javascript solutions that involve the use of third-party "applications" such as jplayer, however, I am not well learned in javascript and would like to request the aid of the general body in this matter. LOL. that was awkwardly formal. Um, but yes. I am looking for a way to use my four divs as the controllers of a multi-track audio player. Thanks,

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• learning and "singing" Ruby with Sinatra

  - by microspino

  Hello I'm trying to improve my ruby knowledge by reading The Ruby Programming Language book. Reading Coders at work I saw that lot of the interviewees suggest to dive into a project source code to learn best practices to be aware of bad habits and of course to take new inspirations for how to do things. I decided to pick a project as more self contained as I could find. My choice was Sinatra since It's 1000 LOC. Is It a good project to learn? Do you suggest another one more simple (i.e. less LOCs)? I've tried to see rails machinery before but I came out scared from It.

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• Why does this TableView code work?

  - by nevan

  I made a typo when creating a UITableViewCell with this code: - (UITableViewCell *)tableView:(UITableView *)tableView cellForRowAtIndexPath:(NSIndexPath *)indexPath { static NSString *CellIdentifier = @"CellIdentifier"; UITableViewCell *cell = [self.tableView dequeueReusableCellWithIdentifier:CellIdentifier]; if (cell == nil) { NSLog(@"Creating cell"); cell = [[[UITableViewCell alloc] initWithStyle:UITableViewStylePlain reuseIdentifier:CellIdentifier] autorelease]; } cell.textLabel.text = @"Hello"; return cell; } The typo is in using UITableViewStylePlain instead of UITableViewCellStyleDefault. The code worked fine, creating new cells. Why?

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• What's the best way to share one Entity Framework 4 data model among multiple applications (meant to

  - by Ivan

  A project (a "solution" to say in VS terms) of mine consists of an ASP.Net 4 Dynamic Data Entities web application, some WinForms applications, some WPF applications, some services. All they are intended to work with one SQL Server database, generated from an Entity Framework 4 model as table-per-type, with lots of inheritance and multiple self-referencing relations. Where do I best put my model? In a separate class library, a copy in every project, in one project, etc. What naming should I best use? Is it good idea to name it MySolution.MyClassLibrary.MySolutionEntities, or just MySolutionEntities or just MySolution? Can you share any useful experience on this subject?

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• Why am I getting the error "undefined local variable or method `assigns'"?

  - by Jason

  I might be missing something basic here, but I'm stumped on this error: model code: class CachedStat < ActiveRecord::Base def self.create_stats_days_ago(days_ago, human_id) d = Date.today - days_ago.day @prs = PageRequest.find(:all, :conditions => [ "owner_type = 'Human' and owner_id = ? and created_at = ?", human_id, d] ) end end spec code: it "should create stats for the specified number of days in the past" do CachedStat.create_stats_days_ago(1, Human.first.id) assigns[:prs].should eql("foo") end The error is: undefined local variable or method `assigns' for #<Spec::Rails::Example::ModelExampleGroup::Subclass_1:0x2fbac28> I feel like I'm overlooking something obvious but it's invisible to me. Any suggestions? Thanks very much! -Jason

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• navigation between screens Iphone programming

  - by Sephy

  Hi, I don't know if my question will be clear or not, but i'm starting basic stuff with iphone programming, and i'm trying to understand how to go from a screen to another. lets say i have a screen with a "next page" button and another page with a "return" button. I have a general idea of how to do this, but I don't know how to put it together. I think I need an IBAction method for each button, and in each method a navigation controller with pushViewController. So far, i've tried the following code, but even if it compiles properly and runs when i push the button, there is no change of screen... -(IBAction) toNext(id)sender{ NSLog(@"before code"); NextViewController *nvc = [[NextViewController alloc] initWithNibName:@"NextView" bundle:nil]; [self.navigationController pushViewController:nvc animated:YES]; [nvc release]; NSLog(@"after code"); } If someone had a nice tuto for me, it could be of some help... thx

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