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Case-insensitive search in Rails model

...ot's comment does not apply to strings from user input. "#$$" is a little-known shortcut for escaping global variables with Ruby string interpolation. It's equivalent to "#{$$}". But string interpolation doesn't happen to user-input strings. Try these in Irb to see the difference: "$##" and '$##'. T...
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How can I deploy an iPhone application from Xcode to a real iPhone device?

...or this change to take effect. And if you're on iOS 5, that's it! Try it now! It may not allow debugging, but the app will be there! I was very surprised by this because, as you should know, I've got no idea on what all those hackings are all about! All I did was improving a little bit what I fou...
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glVertexAttribPointer clarification

...fore you render, you need to enable it with glEnableVertexAttribArray(0);. Now that an attribute is enabled, you need to define the data it's going to use. In order to do so you need to bind your VBO - glBindBuffer(GL_ARRAY_BUFFER, myBuffer);. And now we can define the attribute - glVertexAttribPoin...
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Conda: Installing / upgrading directly from github

... There's better support for this now through conda-env. You can, for example, now do: name: sample_env channels: dependencies: - requests - bokeh>=0.10.0 - pip: - "--editable=git+https://github.com/pythonforfacebook/facebook-sdk.git@8c0d34...
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How exactly do Django content types work?

...d you can do better. High five! Enter the Content Types framework! Well, now we're going to take a close look at our models and rework them to be more "reusable" and intuitive. Let's start by getting rid of the two foreign keys on our Comment model and replace them with a GenericForeignKey. # ou...
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PowerShell script to return versions of .NET Framework on a machine?

...0 ... EDIT: For .Net 4.5 and up, this changed slightly again, so there's now a nice MSDN article here explaining how to convert the Release value to a .Net version number, it's a total train wreck :-( This looks right to me (note that it outputs separate version numbers for WCF & WPF on 3.0. ...
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How to get 30 days prior to current date?

... Get next 30 days from today let now = new Date() console.log('Today: ' + now.toUTCString()) let next30days = new Date(now.setDate(now.getDate() + 30)) console.log('Next 30th day: ' + next30days.toUTCString()) Get last 30 days form today let n...
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How do you detect/avoid Memory leaks in your (Unmanaged) code? [closed]

... Valgrind also now works on OS X, so linux is not your only option. – Michael Anderson Oct 12 '10 at 3:01 1 ...
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How do I time a method's execution in Java?

...ited Jul 8 '16 at 21:49 michaelsnowden 5,33022 gold badges2727 silver badges6767 bronze badges answered Oct 7 '08 at 20:16 ...
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how to implement a pop up dialog box in iOS

...isplay a pop up or alert box conveying a message to the user. Does anyone know where I can find more information about this? ...