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  • In Rails, how to speed up machinist tests?

    - by Bryan Shen
    I'm replacing test fixtures with Machinist. But using Machinist to set up test data is very slow, because whenever a test method is run some new data are made by Machinist and saved to database. Is there any way to cache the data in memory so that using Machinist isn't so slow? Thanks, Bryan

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  • Linq to SQL - Invalid attempt to call FieldCount when reader is closed

    - by Justin
    Hey, Has anyone seen this error before when making a Linq to SQL call? Invalid attempt to call FieldCount when reader is closed Here's the code: public static MM GetDeviceConfiguration(long ipAddress) { string sprocName = ConfigurationBL.ReadSproc("ReadDeviceConfiguration"); return db.ExecuteQuery<MM>("exec {0} @IPAddressNumber = {1}", sprocName, ipAddress).FirstOrDefault(); } Thanks, Justin

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  • Find cosine similarity in R

    - by Derek
    I'm wondering if there is a built in function in R that can find the cosine similarity (or cosine distance) between two arrays? Currently, I implemented my own function, but I can't help but think that R should already come with one :) Thanks, Derek

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  • DDD Modeling questions : student, classroom, seats and a favorite seat for a student.

    - by Erik Ashepa
    Hi, i'm not sure how to model this relationship... A classroom contains many seats, every student studies in a classroom and have a favorite seat within it. The way i see it, i have two aggregate roots: classroom and student, seats a are entities aggregatged by classroom... And for a student to have a fovorite seat, it must hold a reference to it (seat isn't an aggregate root). Any suggestions? Thanks in advance, Erik.

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  • Tips/tricks/gotchas for using System.Diagnostics.Process and Process.Start

    - by puffpio
    I've used Process.Start to shell out and call 7zip to archive stuff I've also used it to call ffmpeg to compress video files. That was a while ago..but I rememeber there was some issue about the pcocess stalling if you don't read off the standardoutput/error. I don't remember everything about it. Does anyone have experience using System.Diagnostics.Process for the purposes of initiating a long running process and waiting for it to finish? Thanks

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  • Determining if an XDocument File Exists

    - by tkeE2036
    Hello Everyone, I am using LINQ and I was wondering what is the best way to create an XDocument and then check to make sure that the XDocument actually exists, much like File.Exists? String fileLoc = "path/to/file"; XDocument doc = new XDocument(fileLoc); //Now I want to check to see if this file exists Is there a way to do this? Thanks!

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  • WPF drag distance threshold

    - by justin984
    I have a program with two WPF treeviews that allow dragging and dropping between the two. The problem is, it can be annoying to open / close items on the treeviews because moving the mouse just one pixel while holding the left mouse button triggers the drag / drop functionality. Is there some way to specify how far the mouse should move before it's considered a drag / drop? Thanks!

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  • Detect ANY touch in a view (iPhone SDK)

    - by David
    Hello, I'm currently using ... - (void)touchesBegan:(NSSet *)touches withEvent:(UIEvent *)event { - (void)touchesEnded:(NSSet *)touches withEvent:(UIEvent *)event { - (void)touchesMoved:(NSSet *)touches withEvent:(UIEvent *)event { to detect swipes. I've got everything working. The only problem is if the user touches on top of something (eg a UIButton or something) the - (void)touchesBegan:(NSSet *)touches withEvent:(UIEvent *)event { is not called. Is there something like touchesBegan but will work if I touch ANYWHERE on the view? Thanks in advance, David

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  • NSWindow NSResizableWindowMask resize corner wrong place

    - by Ziggy
    Hello, if i use NSResizableWindowMask flag in my NSWindow the "resize corner glyph" is on the top right. I can resize when pointing on the lower right corner. I use a own created NSView with it, and set it as content view with setContentView method. I ' dont use a bottom bar. Any idea of what i'm doing wrong ? Thanks.

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  • Sample app for Rails 3?

    - by Jonathan
    Can someone point me to a solid sample app that shows how to use the new features and syntax of Rails 3? Its been answered before for earlier versions (http://stackoverflow.com/questions/248371/whats-the-best-open-source-ruby-on-rails-project-to-learn-from), but I have not seen one for Rails 3. Thanks! Jonathan

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  • axAcroPDFLib at closing problem C#

    - by Hector
    Im using a axAcroPDFLib control taken from a Adobe Reader 9 installation to show and print user PDF documents within my C# window forms application. Everything works just fine untill the appication close... It throws the following error: The instruction at "0x0700609c" referenced memory at "0x00000014". The memory could not be read My FormClosing method is quite simple and i think is wrong, but i didn't know how to do it in the right way: private void Form2_FormClosing(object sender, FormClosingEventArgs e) { if (axAcroPDF1 != null) { axAcroPDF1.Dispose(); } } thanks in advance for any idea

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  • Custom Workflow migration to Windows Workflow foundation

    - by ASV
    I have an application that runs workflows custom developed in .Net 3.5. Now we want to build a case (to help customer understand) for migrating these custom workflows to WF. What should be the highlights of such a case? P.N: the customer has not asked for it but we want to build a case and present it to the customer. Thanks in advance ASV

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  • Sharepoint DateTimeControl: set it to null

    - by pistacchio
    Hi, how can I set the selected value of a Sharepoint DateTimeControl to null? When you first load it into a page, there's no value selected (even if the returned value is not properly null but one can check it with IsDateEmpty). How can i programmatically set it back to the initial, empty value? Thanks

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  • Preview colours in Emacs-ESS

    - by aL3xa
    I accidentally managed to get colour names, #HEX, and a colour preview in Emacs-ESS. Don't have a bloody idea how, must've pressed some keybinding or menu item... But, now I can't seem to find where's that feature... I'm quite sure I wasn't hallucinating, so it's gotta be there, under some keystroke that I can't reproduce!!! =) Thanks in advance!

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  • JQuery ajax call default timeout value

    - by Marcus
    I got a bug report that I can't duplicate, but ajax-call timeout is the current best guess. So I'm trying to find out the default value for timeout of a jQuery $.ajax() call. Anybody have an idea? Couldn't find it in jQuery documentation. Thanks in advance, Marcus

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  • Rails: foreign_key that is set with a CASE WHEN mysql statement

    - by user305270
    belongs_to :removed_friend, :class_name => 'Profile', :foreign_key => "(CASE WHEN friendships.profile_id = #{self.id} THEN friendships.friend_id ELSE friendships.profile_id END)" The self.id its not working too :s it should be the id of the profile that is triggered the action. Anyway the main problem is that this foreign_key is not working and i got a mysql error. please help.. thanks

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