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Where should Rails 3 custom validators be stored?

I've seen docs/websites show that custom validators should go in a /lib or /lib/validators directory of a project. I've found (by reading an answer to another post) that they only seem to work in config/initializers . Does anyone know, or have a pointer to official documentation that shows wher...
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What is the difference between Directory.EnumerateFiles vs Directory.GetFiles?

What is the difference between Directory.EnumerateFiles vs GetFiles ? 3 Answers 3 ...
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Can we have multiple “WITH AS” in single sql - Oracle SQL

I had a very simple question: Does oracle allow multiple "WITH AS" in a single sql statement. 4 Answers ...
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How do I use CMake?

I am trying to use CMake in order to compile opencv. 4 Answers 4 ...
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Is it possible to use getters/setters in interface definition?

At the moment, TypeScript does not allow use get/set methods(accessors) in interfaces. For example: 4 Answers ...
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How do I remove a project configuration in Visual Studio 2008?

I have a Visual Studio 2008 solution into which I have imported a number of pre-existing projects. The projects are mixed-language sample code (C#, VB, C++/CLI). They currently have multiple configurations, but I want each project only to have only a single "Debug" configuration. ...
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What is Prefix.pch file in Xcode?

So many developers are adding various convenience macros to the Prefix.pch . But my question is what is that Prefix.pch file. ...
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Getting value of public static final field/property of a class in Java via reflection

Say I have a class: 3 Answers 3 ...
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MySQL: how to get the difference between two timestamps in seconds

Is there a way I can make a query in MySQL that will give me the difference between two timestamps in seconds, or would I need to do that in PHP? And if so, how would I go about doing that? ...
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Right way to initialize an OrderedDict using its constructor such that it retains order of initial d

What's the correct way to initialize an ordered dictionary (OD) so that it retains the order of initial data? 2 Answers ...