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We store static translation data in Rails in en-US. How can we make sure things don’t need to be duplicated for all the en variations like en-GB, en-CA etc.?
One solution could be to define a virtual root locale which would equal to en-US.
Then for en-GB we’d have a fallback route like:
en-GB » en » root (en-US)
This also should work for en-US itself:
en-US » en
… as everything defined in en-US would already be found in the original locale root could be omitted in this case.
So, the algorithm could be:
fallbacks = locale.parents << root
… with locale.parents returning an array of the locale itself and all parents of the locale.