Iterate every month with date objects

Question

So I have two ruby Date objects, and I want to iterate them every month. For example if I have Date.new(2008, 12) and Date.new(2009, 3), it would yield me 2008-12, 2009-1, 2009-

Answer 1

I have added following method to Date class:

class Date
  def all_months_until to
    from = self
    from, to = to, from if from > to
    m = Date.new from.year, from.month
    result = []
    while m <= to
      result << m
      m >>= 1
    end

    result
  end
end

You use it like:

>> t = Date.today
=> #
>> t.all_months_until(t+100)   
=> [#, #, #, #]

Ok, so, more rubyish approach IMHO would be something along:

class Month> 1
  end
end

and

>> t = Month.today
=> #
>> (t..t+100).to_a
=> [#, #, #, #]

But you would need to be careful to use first days of month (or implement such logic in Month)...