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Rails - Validate Presence Of Association?

... B. I have a business requirement that an insert into A requires at least 1 associated record to B. Is there a method I can call to make sure this is true, or do I need to write a custom validation? ...
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REST API - why use PUT DELETE POST GET?

... 201 The idea of REpresentational State Transfer is not about accessing data in the simplest way poss...
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What does “rc” mean in dot files

... | edited May 13 at 5:02 answered Jun 14 '12 at 9:50 ...
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How do I parse a string into a number with Dart?

I would like to parse strings like "1" or "32.23" into integers and doubles. How can I do this with Dart? 5 Answers ...
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adb update a non-market apk?

... answered Mar 10 '10 at 8:17 Vidar VestnesVidar Vestnes 40.6k2727 gold badges8181 silver badges9696 bronze badges ...
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Python Write bytes to file

... answered Aug 23 '12 at 13:22 Ignacio Vazquez-AbramsIgnacio Vazquez-Abrams 667k127127 gold badges11911191 silver badges12501250 bronze badges ...
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Can I create links with 'target=“_blank”' in Markdown?

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How set background drawable programmatically in Android

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gitignore does not ignore folder

... 361 I'm guessing this folder has been checked into git before? Run git rm -r --cached <folder&g...
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Generating HTML email body in C#

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