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OO Design in Rails: Where to put stuff

I'm really enjoying Rails (even though I'm generally RESTless), and I enjoy Ruby being very OO. Still, the tendency to make huge ActiveRecord subclasses and huge controllers is quite natural (even if you do use a controller per resource). If you were to create deeper object worlds, where would you p...
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Which one will execute faster, if (flag==0) or if (0==flag)?

...n :) The answer is: What is flag's type? In the case where flag actually is a user-defined type. Then it depends on which overload of operator== is selected. Of course it can seem stupid that they would not be symmetric, but it's certainly allowed, and I have seen other abuses already. If fl...
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How do I create a comma-separated list from an array in PHP?

...me. For example, maybe you want to quote each fruit and then separate them all by commas: $prefix = $fruitList = ''; foreach ($fruits as $fruit) { $fruitList .= $prefix . '"' . $fruit . '"'; $prefix = ', '; } Also, if you just do it the "normal" way of appending a comma after each item (l...
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How to tell which version of a gem a rails app is using

...gating a rails app - the prod server has two version of a specific gem installed, how can I tell which version the prod app is using? ...
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Get key by value in dictionary

...oes not imply that it was not intended to be used as such. Not helpful at all. – Tropicalrambler Jan 8 at 17:52 Would...
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Flatten an irregular list of lists

...een covered before ( here , here , here , here ), but as far as I know, all solutions, except for one, fail on a list like this: ...
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Git: list only “untracked” files (also, custom commands)

...he alias line, or where is that documented? – We Are All Monica Sep 27 '10 at 6:31 @takeshin How to get only parent di...
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Using build types in Gradle to run same app that uses ContentProvider on one device

...fied me, however Liberty was close. So this is how am I doing it. First of all at the moment I am working with: Android Studio Beta 0.8.2 Gradle plugin 0.12.+ Gradle 1.12 My goal is to run Debug version along with Release version on the same device using the same ContentProvider. In build.gradle ...
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What's the best way to put a c-struct in an NSArray?

... @Joe Blow @Catfish_Man It actually copies the structure p, not a pointer to it. The @encode directive provides all the information necessary about how big the structure is. When you release the NSValue (or when the array does), its copy of the structure i...
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How to namespace Twitter Bootstrap so styles don't conflict

...ap, but only on specific elements, so I need to figure out a way to prefix all Twitter Bootstrap classes with my prefix, or use the less mixins. I'm not experienced with this yet so I don't quite understand how to do this. Here's an example of the HTML that I'm trying to style: ...