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• How can I test helpers blocks in Sinatra, using Rspec ?

  - by julien

  I'm writing a sinatra app and testing it with rspec and rack/test (as described on sinatrarb.com). It's been great so far, until I moved some rather procedural code from my domain objects to sinatra helpers. Since then, I've been trying to figure out how to test these in isolation ?

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• (re)mounting the SD card on android emulator

  - by Lo'oris

  On the emulator, I can unmount the SD card from the Settings. On OSX, I can then mount it using hdiutil, then unmount it normally. I haven't been able to figure out how to re-mount it then on the emulator (without rebooting it). hints: the adb command remount is unrelated: it's about /system the emulator command is unrelated: it's only about starting the emulator mounting the SD card on OSX without unmounting it from the emulator causes horrible pain to the emulator

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• Is Odersky serious with "bills !*&^%~ code!" ?

  - by stacker

  In his book programming in scala (Chapter 5 Section 5.9 Pg 93) Odersky mentioned this expression "bills !*&^%~ code! In the footnote on same page: "By now you should be able to figure out that given this code,the Scala compiler would invoke (bills.!*&^%~(code)).!()." That's a bit to cryptic for me, could someone explain what's going on here?

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• Can I Do a Foreach on a TimeSpan by Timespan Type?

  - by IPX Ares

  I have a requirement that regardless of the start and dates that I need to loop through that timespan and calculate figures at the month level. I cannot seem to figure it out, and maybe it is not possible, but I would like to do something like: FOREACH Month As TimeSpan in ContractRange.Months Do Calculations (Month.Start, Month.End) NEXT Is this possible or do I need to calculate the number of months, and just iterate through the amount of months and calculate the start/end of that month based on my index?

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• Linq2SQL InfoMessage

  - by Paul Oakham

  Hi, is it possible to access the InfoMessage event handler in a Linq2SQL data context? All of our code uses these messages to display useful information to the end user and since moving to Linq2SQL I cannot figure out how to show these messages. I have checked the connection object of the data context as well as the classes properties with no luck so I'm wondering if it is possible. Thanks in advance.

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• Best tutorials or sites for Actionscript 3.

  - by befall

  This is semi-redudant, but the other entries on here didn't yield anything. I know a bit of AS3, but only from copying segments and attempting to figure it out. Is there any online resources for going through from the beginning and UNDERSTANDING everything, allowing me to more creatively interpret and learn it? Anything is appreciated, thanks.

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• jqTouch - why does the transition has no animation?

  - by teepusink

  Hi, I'm using jqTouch. Trying to figure out why when the scene / div change, it just change abruptly without the slide animation? Here is the setting that I have now: var jQT = new $.jQTouch({ slideSelector: '.link', useAnimations: true }); Again the scene change works just fine, just that I don't see the slide animation. What am I missing? Thanks, Tee

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• How does web applications handle multiple browser window

  - by Jeeyoung Kim

  Hello, I have a very basic knowledge of the web programming, and I couldn't figure out the answer to this question. Typically, a cookie is used to identify a session in web applications. However, as far as I know, multiple browser windows share cookies. In that case, how does web applications distinguish between the tabs?

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• How can you tell if an activities state is stored?

  - by Joren

  I have an activity which pulls some JSON from my server, and then uses it to draw a list. That list launches further activities. My problem is that I can't figure out a way to tell if the activity is still alive when you go back to it, so I end up re-querying my JSON from the server and redrawing the list every time the user goes back to the activity. How can I tell if my activity is still alive so I can skip the redraw?

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• What was the single byte change to port WordStar from CP/M to DOS?

  - by amarillion

  I was re-reading Joel's Strategy Letter II: Chicken and Egg problems and came across this fun quote: In fact, WordStar was ported to DOS by changing one single byte in the code. (Real Programmers can tell you what that byte was, I've long since forgotten). I couldn't find any other references to this with a quick Google search. Is this true or just a figure of speech? In the interest of my quest to become a "Real Programmer", what was the single byte change?

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• Compiling DLL with Version Information

  - by adk

  What steps are needed to compile Version Information inside a windows DLL from the command line. I have been looking at VersionInfo files, but could not figure out how to link them to the DLL. Thank you

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• Adding Items to an Inner (Nested) ListView

  - by Corey O.

  I have 2 asp:ListView controls, one embedded in the other (OuterListView and InnerListView respectively). I am trying to add an asp:linkbutton in the InnerListView layout that will allow the user to add an item to the InnerListView. Unfortunately, when I handle the OnClick event in the linkbutton control, I can't figure out how to get a handle on the asp:linkbutton's parent ListView from within the codebehind handler. Obviously, there is no global handle since there are multiple inner listviews. I can link code if necessary.

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• django deployment apache

  - by Uszy Wieloryba

  I would like to create a python script, which will: Create a django project in the current directory. Fix settings.py, urls.py. Do syncdb Install new apache instance listening on specific port (command line argument), with WSGI configured to serve my project. I can't figure out how to do point 3. EDIT: Peter Rowell: I need the solution for both Linux and Windows I have root access This is a dedicated host Apache only

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• will mmap use user cpu instead of whole sys cpu? (solaris)

  - by Daniel

  when use mmap to allocate some anonymous mem, we often set the start address as 0/null so mmap will figure out the starting address by itself. And to get the start address, it will work thought the whole virtual memory space to find a hole which could put the chuck of mem to be allocated. I guess this is calculated as user cpu instead of sys cpu. If the virtual memory is fragmented, then the time to find the starting address will use more user cpu, is my understanding correct

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• How can I find all the possible combinations of a list of lists (in Python)?

  - by Pheter

  I have the following structure in Python: letters = [['a', 'b', 'c'], ['p', 'q', 'r', 's'], ['j', 'k', 'l']] I would like to find all the possible combinations of letters in the order that they currently exist. For the example above this would be: apj apk apl aqj aqk aql ... csk csl This seems like it should be a very simple thing to do but I cannot figure it out.

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• How To Add Custom ModelValidatorProviders To Web API Project?

  - by Mark S.

  I'm moving some MVC code to Web API and I need to update my custom ModelValidatorProviders. It seems as though my validators can stay much the same only they should inherit the System.Web.Http.Validation namespace. What I can't figure out is how to add the provider to Web API. When using MVC I can just add the following to my global.asax: ModelValidatorProviders.Providers.Add(new CustomModelValidatorProvider()); How do I use the custom provider with Web API?

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• Converting string to email-attachment on android

  - by sandis

  So I have som data that I have converted to a string. While I have found how to attach something from the SD-card to a mail, I cant figure out how to directly convert my string to a mail-attachment without involving the SD-card. In case it holds significance, I have read some data from a database, converted it to csv-format, and now wants to attach it as a csv-file. Cheers,

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• In general, how to convert ilasm syntax into Reflection.Emit calls?

  - by Qwertie

  I am writing a special-purpose mini-compiler and I often view disassembled CIL to figure out how to do things. But it's often not obvious how to translate the disassembled code to Reflection.Emit calls. Does a reference manual exist or any other source of information for doing this translation?

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• How to capture each frame of a USB webcam using VB.net?

  - by Kevin Boyd

  While I have got some leads from an older SO post and from this site, I haven't been able to figure out how to capture each frame of a web-cam. What I would like to do is something like this capture a frame then do some image processing on it and display the output and then move on to the next frame. Can I can access to web-cam frame events or is there any efficient way to achieve this?

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• Selecting and Copying a Random File Several Times

  - by user1252778

  [Edit: see below for final code] I have the following code and I'm trying to figure out where to insert the random.choice code to make it select a single file, copy it, and repeat (here 6 times). import os import shutil import random dir_input = str(input("Enter Source Directory: ")) src_files = (os.listdir(dir_input)) for x in range (0,5): print ('This is the %d time' % x) for file_name in src_files: full_file_name = (os.path.join(dir_input, file_name)) if (os.path.isfile(full_file_name)): print ('copying...' + full_file_name) shutil.copy(full_file_name, r'C:\Dir')) else: print ('Finished!')

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• How would you compare jQuery objects?

  - by Kyle

  So I'm trying to figure out how to compare two jQuery objects, to see if the parent element is the body of a page. here's what I got: if ( $(this).parent() === $('body') ) ... I know this is wrong, but if anybody understands what I'm getting at, could they point me towards the correct way of doing this?

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• Amazon Web Services Apache Server

  - by Samnsparky

  I am trying to get a feel for the costs imposed by running apache on AWS continually. Assuming that the service is scarcely used, does anyone know how many cpu hours that would eat up in a month just by sitting there and running? I understand that this is slightly impractical but I am trying to figure out what the cost of entry is to deploy an application on this platform (as compared to GAE). I suspect it to be small but I would like to know.

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• Wordpress display specific sub category of a parent category.

  - by Pennf0lio

  So here's the scenario, I'm building a theme that would display sub category of a parent post for Food: [Food] -Hotdog -Eggs -Fries for Toys: [Toys] -Doll -Car -Drums for People: [People] -Mom -Dad -Uncle now I don't want to display their parent category, just their subcategory (eg Doll, Car, Drums). I've looked list_cats() and wp_list_categories() but I can't figure out how to display it right. Thanks!

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• WCF + Add a Binding Extension via Code

  - by FlySwat

  I'm trying to figure out a way to add a binding extension to an endpoint via code, instead of through configuration files. Ideally I want it to simply be an attribute I place on the service method. So far it seems like the only thing that isn't exposed publicly is the binding extensions.

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• How can I dynamically resize the jQuery Colorbox plugin?

  - by James Skidmore

  The AJAX content loaded in a Colorbox has some JavaScript included that resizes things within the content. Colorbox determines its sizing based on the sizes before all of the AJAX happens. How can I make the Colorbox resize after the content has been loaded? Here is a link where someone said that you can call colorbox() again after it's been loaded, but I can't figure out how to do that: http://groups.google.com/group/colorbox/browse_thread/thread/535d21c69e9006b0

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