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• Instance variables vs. class variables in Python

  - by deamon

  I have Python classes, of which I need only one instance at runtime, so it would be sufficient to have the attributes only once per class and not per instance. If there would be more than one instance (what won't happen), all instance should have the same configuration. I wonder which of the following options would be better or more "idiomatic"…

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• Wicket and SVG - any components exist?

  - by Ondra Žižka

  SVG DOM can be controlled with JavaScript, so it can be AJAX-enabled... I wonder if there are some SVG components for Wicket yet. And if Wicket can have pure xml/svg as the output format. Quick googling shows only a question at Code Ranch.

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• Is it good practice to generally make heavyweight classes non-copyable?

  - by Emile Cormier

  I have a Shape class containing potentially many vertices, and I was contemplating making copy-constructor/copy-assignment private to prevent accidental needless copying of my heavyweight class (for example, passing by value instead of by reference). To make a copy of Shape, one would have to deliberately call a "clone" or "duplicate" method. …

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• AdvancedDataGrid does not displays object properties

  - by chary1112004

  I read your matter and I wonder did you resolve it? If you found out, let me know and give mail for me. My mail is chary1112004@gmail.com. Thanks much! http://stackoverflow.com/questions/2298908/advanceddatagrid-does-not-displays-object-properties

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• GUI softwares/netbeans-plugins for creating branches/tags in svn?

  - by ajsie

  hi i wonder if there are some GUI softwares to administrate a svn repo? or do you actually have to log into the ubuntu server with ssh and use all the svn commands to copy the trunk to a branch, merge the data back and forth, copy to a tag, delete and so on. im using netbeans in mac. i think it's only handling the communication between a…

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• Event OnLoad on Telerik's grid (client selection)

  - by Kira

  Hi! I'm using Grid with "Client Selection" (http://demos.telerik.com/aspnet-mvc-beta/grid/selectionclientside) of Telerik, and my page loads with one of the lines already marked. I wonder how it could activate the event OnRowSelected (on the marked line) when the page loads. Thanks everyone!

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• "find" files under current directory but skipping some specific sub-directories

  - by Tim

  I wonder how to specify to the command "find" for searching files under current directory but skipping some specific sub-directories. For example, I would like to skip sub-directories that match "./dir1/*.1/" Thanks and regards!

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• Front-end design first, or back-end development first? For Ruby on Rails site

  - by Victor

  I am doing everything on my own: front-end and back-end. I am proficient with HTML and CSS, but a noob in Ruby on Rails. Now that I want to develop the site, I wonder if I should start from front-end first, or back-end. Cos what I am doing for front-end now are all static. I am afraid that I have to change a lot of my front-end coding when…

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• When does post-update get called (GIT)

  - by Michael

  My git setup was working beautifully, then stopped cooperating today. Right now, I can git-pull, git commit just fine from my local machine. When I git push, the push goes through, but the server files don't actually get updated. Now I wonder, is my post-update file even getting called anymore? I've checked the permissions, and they…

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• Recalculate Counter Cache of 120k Records [Rails / ActiveRecord]

  - by Sebastian

  The following situation: I have a poi model, which has many pictures (1:n). I want to recalculate the counter_cache column, because the values are inconsistent. I've tried to iterate within ruby over each record, but this takes much too long and quits sometimes with some "segmentation fault" bugs. So i wonder, if its possible to do…

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• CQRS - Should a Command try to create a "complex" master-detail entity?

  - by Simon Crabtree

  I've been reading Greg Young and Udi Dahan's thoughts on Command Query Responsibilty Separation and a lot of what I read strikes a chord with me. My domain (we track vehicles which are doing deliveries) has the concept of a Route which contains one or more Stops. I need my customers to be able to set these up in our system by…

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• read past bandswitch

  - by user262325

  Hello everyone I know there is no public api to read 3g/wifi bandswitch. But I wonder how this app can do this? http://itunes.apple.com/ca/app/download-meter-for-wi-fi-gprs/id327227530?mt=8 Thanks interdev

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• What compromises Scala made to run on JVM?

  - by Lukasz Lew

  Scala is a wonderful language, but I wonder how could be improved if it had it's own runtime? I.e. what design choices were made because of JVM choice?

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• doctrine reference?

  - by ajsie

  i've found one cheat sheet for doctrine: cheat sheet but it doesn't list all methods for Doctrine_Record, Doctrine_Core, Doctrine_Query etc. i wonder if there is a such reference? Would be very helpful.

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• Dump UIImage on iPhone

  - by Leon

  I wonder how to save the UIImage object from UIImagePickerController into the App Document directory. I tried to use UIImageJPEGRepresentation() method and UIImagePNGRepresentation(), but it seemed the image data was changed. Is there any method to keep the original image content without any compression?

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• Servlet xxx is not available

  - by hguser

  In the web.xml of my web app I have configed the server as following: The web.xml However when I request this servlet ,I got a error which tells me "Servlet SOS is not available",but I am sure this servlet do exist in the WEB-INFO/lib/sos.jar. And I have seen the initialization work under the servelt from the logs. I wonder…

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• How to enforce unique-field validation in MVC

  - by xandy

  I am in the way building some MVC Application and I really love the Data Annotations support in MVC. The build in support is good enough to enforce simple validation checkup. I wonder, how to implement unique-field validation using custom data-annotation ? For example, I have a view model that need the user to register a new…

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• how to pass querystring in friendly url in asp.net mvc

  - by frosty

  I have the following action. I can hit this with /basket/address?addressId=123 However i wonder how i can hit it with /basket/address/123 public ActionResult Address(int addressId) { return RedirectToAction("Index"); } my routes routes.MapRoute( "Default", …

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• Help for server down.

  - by SpawnCxy

  Hi all, I wonder what the follow command does,but I was warned not to run it if I'm not an expert.But I have run it,and my Linux down. :() { :|:& }; : What does the code exactly do?Hope someone give an explaintion of it.And what should I do now? Thanks.

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• C++ copy constructor function question

  - by Tim

  Hi, I wonder if there is something wrong with the copy constructor function below? class A { private: int m; public: A(A a){m=a.m} } Thanks and regards!

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• How many ways a java Program can end ?

  - by Frank

  I know use System.exit(0) can end a java program, for instance, if I have a JFrame window, it will close and end the program, but I wonder how many other ways, can it be closed and the program be ended ? Including when an error occurs, will the program be shut down and the JFrame be closed ?

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• Is there any application for checking 'what's loading onto the website right now' kindof ?

  - by Camran

  I am developing a website and sometimes the browsers keeps loading, and I would like to know exactly what's making it load for so long. It gets stuck kindof. So I wonder if there is any application or way to check what is getting loaded onto the page, so I can see what element or object it gets stuck on? The website uses…

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• django: How to make copy of one of the objects in the db

  - by Oleg Tarasenko

  Hi, I wonder if there is a way to make a copy of one db item? e.g. I have a model class Category(models.Model): slug = models.CharField(max_length=200) name = models.CharField(max_length = 200) So if I added one item, how can i clone it 100 times for testing?

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• Does the type in this KVC validation method matter?

  - by dontWatchMyProfile

  For example, in the docs a KVC-style validation method is implemented like this: -(BOOL)validateAge:(id *)ioValue error:(NSError **)outError They used id* as the type for ioValue. Since that's not part of the method signature, I wonder if it would hurt to do something like: -(BOOL)validateAge:(NSNumber *)ioValue…

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• Why is there no string interpolation in Scala?

  - by Alex R

  This is not just an idle quip... I wonder if anybody knows if there's an actual design reason why Scala does not support interpolation similar to Groovy and other "syntactically better Javas"? e.g. var str1 = "World"; var str2 = "Hello, ${str1}";

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