Hi!

Some time ago, I opened the issue 27645
<https://github.com/rails/rails/issues/27645> where I suggested we improve
the code and docs regards representing money. Currently, it seems that
floats are encouraged (see the examples in the docs
<http://api.rubyonrails.org/classes/ActionView/Helpers/NumberHelper.html#method-i-number_to_currency>)
which is a bad practice. Please see my comment on the issue
<https://github.com/rails/rails/issues/27645#issuecomment-303894475> to
understand why it leads to problems.

Someone experienced in working with financial systems knows to avoid this
pitfall but newcomers are likely to build a buggy system. I'm happy to
contribute patches to both the code and docs but first I wanted to ask:

How do we want Rails to handle this?

Best regards
Greg Navis

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