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Where should Rails 3 custom validators be stored?

I've seen docs/websites show that custom validators should go in a /lib or /lib/validators directory of a project. I've found (by reading an answer to another post) that they only seem to work in config/initializers . Does anyone know, or have a pointer to official documentation that shows wher...
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emacs zoom in/zoom out

Is there a way to zoom in and out (dynamically change the font size, quite smoothly) on emacs? 3 Answers ...
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Can we have multiple “WITH AS” in single sql - Oracle SQL

I had a very simple question: Does oracle allow multiple "WITH AS" in a single sql statement. 4 Answers ...
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How to get a enum value from string in C#?

I have an enum: 6 Answers 6 ...
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MySQL: how to get the difference between two timestamps in seconds

Is there a way I can make a query in MySQL that will give me the difference between two timestamps in seconds, or would I need to do that in PHP? And if so, how would I go about doing that? ...
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How to stop IntelliJ truncating output when I run a build?

When I run our build from IntelliJ it pumps out a lot of debugging. 6 Answers 6 ...
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Format number to 2 decimal places

I would like to know how can I output a number with 2 decimal places, without rounding the original number. 6 Answers ...
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How do I convert an integer to string as part of a PostgreSQL query?

How do I convert an integer to string as part of a PostgreSQL query? 3 Answers 3 ...
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How can I find out a file's MIME type (Content-Type)?

Is there a way to find out the MIME type (or is it called "Content-Type"?) of a file in a Linux bash script? 5 Answers ...
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svn : how to create a branch from certain revision of trunk

...following action will only create a branch from the head revision of the trunk. How do I create a branch from a specific revision? Thanks. ...