What is the proper way to specify a path to 'app' in a Rails plugin?

Posted by Brian Deterling on Stack Overflow See other posts from Stack Overflow or by Brian Deterling
Published on 2010-03-19T02:42:52Z Indexed on 2010/03/19 4:01 UTC
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Filed under:

rails

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actionview

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cells

This question came about because the cells gem specifies template directories using File.join('app','cells'). That works fine until you run Rails as a daemon (scripts/server -d). The daemon switches directories to / which leaves the cells template paths pointing to the wrong absolute path.

My solution was to set the default paths to File.join(RAILS_ROOT, 'app', 'cells'). This works in Rails, but the unit tests for the plugin fail because RAILS_ROOT isn't defined. Using File.join(File.dirname(__FILE__),'..' ... also works but requires about 6 levels of '..' which seems wrong.

So my question is what is the proper way to specify the path to a directory under 'app' in a Rails plugin? Or is there something else wrong that would cause daemonizing Rails to fail to find the relative paths?

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