On Apr 6, 2011, at 11:18 AM, Robert Pankowecki wrote: > ruby-1.9.2-p136 :080 > Rails.version > "3.0.6" > > ruby-1.9.2-p136 :081 > (Date.today - Date.today).class > Rational < Numeric > > Why is the difference Rational ?
This is actually a feature of the built-in date library; I get the same result on 1.8 in vanilla irb (after doing "require 'date'"). It's intended (AFAIK) to enable sensible operations between Date and DateTime objects, since subtracting Dates gives a value which should be read as "number of days" and DateTimes can mix fractions in: require 'date' d = Date.civil(2011,4,6) d2 = DateTime.civil(2011,4,6,12,0,0) d2 - d # returns Rational(1,2) - in other words, "half a day" since the docs say Date objects are considered to have a time of midnight --Matt Jones -- You received this message because you are subscribed to the Google Groups "Ruby on Rails: Core" group. To post to this group, send email to rubyonrails-core@googlegroups.com. To unsubscribe from this group, send email to rubyonrails-core+unsubscr...@googlegroups.com. For more options, visit this group at http://groups.google.com/group/rubyonrails-core?hl=en.
