date time comparison

rubyonrails-talk
1

Hi there

in RoR i can convert a Time into a Date object

t = Time.new => Thu Jun 14 14:00:46 BST 2007 d = Date.new(2007,06,03) #<Date: 4908509/2,0,2299161> t.to_date => #<Date: 4908531/2,0,2299161> d.to_time => Sun Jun 03 00:00:00 BST 2007

But I can not compare Date and Time object

t > d

ArgumentError: comparison of Time with Date failed

Now, am I shooting myself in the foot if I do something like

class Date   alias oldcmp <=>   def <=>(other)     if other.respond_to? :to_date       oldcmp(other.to_date)     else       oldcmp(other)     end   end end

class Time   alias oldcmp <=>   def <=>(other)     if other.respond_to? :to_time       oldcmp(other.to_time)     else       oldcmp(other)     end   end end

To allow comparison among Date and Time objects?

Thanks

Paolo