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How to display unique records <em>fem>rom a has_many through relationship?

I'm wondering what is the best way to display unique records <em>fem>rom a has_many, through relationship in Rails3. 4 Answers ...
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Modi<em>fem>ying a query string without reloading the page

I am creating a photo gallery, and would like to be able to change the query string and title when the photos are browsed. ...
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Percentage Height HTML 5/CSS

I am trying to set a &lt;div&gt; to a certain percentage height in CSS, but it just remains the same size as the content inside it. When I remove the HTML 5 &lt;!DOCTYTPE html&gt; however, it works, the &lt;div&gt; taking up the whole page as desired. I want the page to validate, so what shoul...
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What's the (hidden) cost o<em>fem> Scala's lazy val?

One handy <em>fem>eature o<em>fem> Scala is lazy val , where the evaluation o<em>fem> a val is delayed until it's necessary (at <em>fem>irst access). ...
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Set a persistent environment variable <em>fem>rom cmd.exe

I have to set environment variables on di<em>fem><em>fem>erent windows machines, but I don't want to be bothered changing them manually by getting on the properties screen o<em>fem> "My Computer" ...
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How do I programmatically shut down an instance o<em>fem> ExpressJS <em>fem>or testing?

I'm trying to <em>fem>igure out how to shut down an instance o<em>fem> Express. Basically, I want the inverse o<em>fem> the .listen(port) call - how do I get an Express server to STOP listening, release the port, and shutdown cleanly? ...
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Remote Connections Mysql Ubuntu

<em>Fem>or some reason, I've been unable to connect remotely to my MySQL server. I've tried everything and I'm still getting errors. ...
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Separation o<em>fem> JUnit classes into special test package?

I am learning the concepts o<em>fem> Test-Driven Development through reading the Cra<em>fem>tsman articles (click Cra<em>fem>tsman under By Topic ) recommended in an answer to my previous question, "Sample project <em>fem>or learning JUnit and proper so<em>fem>tware engineering" . I love it so <em>fem>ar! ...
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How can I override inline styles with external CSS?

I have markup that uses inline styles, but I don't have access to change this markup. How do I override inline styles in a document using only CSS? I don't want to use jQuery or JavaScript. ...
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How do I append text to a <em>fem>ile?

What is the easiest way to append text to a <em>fem>ile in Linux? 4 Answers 4 ...