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Convert Time from one time zone to another in Rails

...ious reply it's suggested to use a before_filter to set the timezone temporally. You should never, ever do that because Time.zone stores the information in the thread, and it will probably leak to the next request handled by that thread. Instead you should use an around_filter to make sure that t...
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C#: Abstract classes need to implement interfaces?

... In C#, a class that implements an interface is required to define all members of that interface. In the case of an abstract class, you simply define those members with the abstract keyword: interface IFoo { void Bar(); } abstract class Foo : IFoo { public abstract void Bar(); } ...
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What is the difference between JDK dynamic proxy and CGLib?

...n using frameworks that rely on this. That would stop these libraries from allowing to subclass your class and override your methods. share | improve this answer | follow ...
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SQL: deleting tables with prefix

How to delete my tables who all have the prefix myprefix_ ? 10 Answers 10 ...
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How can I open multiple files using “with open” in Python?

I want to change a couple of files at one time, iff I can write to all of them. I'm wondering if I somehow can combine the multiple open calls with the with statement: ...
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How to vertically align into the center of the content of a div with defined width/height?

What would be the correct method to vertically center any content in a defined width/height div . 4 Answers ...
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How do I set up a basic Ruby project?

I want to create a small Ruby project with 10 ~ 20 classes/files. I need some gems and I want to use RSpec as test framework. ...
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What are transparent comparators?

..., not by default. The new member function template overloads of find etc. allow you to use a type that is comparable with the container's key, instead of using the key type itself. See N3465 by Joaquín Mª López Muñoz for rationale and a detailed, carefully written proposal to add this feature....
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Why does Ruby 1.9.2 remove “.” from LOAD_PATH, and what's the alternative?

... LOAD_PATH , so this broke them (they reported "no such file to load" for all require statements that based off the project path). Was there a particular justification for doing this? ...
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What is “android.R.layout.simple_list_item_1”?

...id/platform_frameworks_base/tree/master/core/res/res/layout ) You can actually view the code for the layouts. share | improve this answer | follow | ...