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How to implement a unique index on two columns in rails

... answered Nov 8 '10 at 12:45 shingarashingara 44k1111 gold badges9494 silver badges103103 bronze badges ...
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Checking if an instance's class implements an interface?

... Tomáš Votruba 16.3k88 gold badges5454 silver badges8181 bronze badges answered Nov 8 '08 at 4:27 user19302user19302 ...
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PhpStorm wrap/surround selection?

... Barna Tekse 2,61577 gold badges2828 silver badges4141 bronze badges answered Apr 14 '14 at 9:47 Steve.NayLinAungSteve...
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Window vs Page vs UserControl for WPF navigation?

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What is the difference between Culture and UICulture?

...are a few examples: var date = new DateTime(2000, 1, 2); var number = 12345.6789; Thread.CurrentThread.CurrentCulture = new CultureInfo("de-DE"); Console.WriteLine(date); // 02.01.2000 00:00:00 Console.WriteLine(number.ToString("C")); // 12.345,68 € Thread.CurrentThread.CurrentCulture = new Cul...
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Pull all commits from a branch, push specified commits to another

... 315 The term I think you're looking for is a 'cherry pick'. That is, take a single commit from the m...
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Why should I implement ICloneable in c#?

... | edited Jul 20 '13 at 5:49 Mark Hurd 9,8891010 gold badges5959 silver badges9292 bronze badges answe...
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Sourcetree - undo unpushed commits

... 351 Right click on the commit you like to reset to (not the one you like to delete!) Select "Reset...
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is not JSON serializable

...| edited Jun 21 '17 at 11:51 cyph3rn3tz 344 bronze badges answered May 28 '13 at 11:04 ...
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What format string do I use for milliseconds in date strings on iPhone?

... answered Jun 23 '11 at 15:53 Simon WhitakerSimon Whitaker 20k33 gold badges5454 silver badges7878 bronze badges ...