Dan Barry

Joey's implementation O(n^3 / m) where n is the number of elements in the array and m is the number of unique values. I came up with a different implementation ...

I realize that Column#type and Object#class are different: that's why the patch checks if it's a column and uses #type if it is.

I get a deprecation warning on ...

XmlSerializer uses Object#type, which is deprecated.

Ah, good catch. I'll have to update the tests and figure that out.

Actually, this does make 2 * 1.day return a duration. I don't know exactly why it works, but there's a test for it (test_multiplication_associativity).

AnchoredDuration sounds like a great idea. It could have built in #years, #months, etc., and also allow division by a Duration. So, you could do

ActiveSuppor...

The numbering on my comments should 1, 2, 4, 5, 6, but the markdown interpreter converted them to an ol and they got reordered 1, 2, 3, 4, 1. So, my 3rd respons...

@Geoff

1. I'm not sure if this should return negative or absolute values. To me, "between two dates" sounds like it would be absolute, but "between the start dat...

I've attached the corresponding patch for error_message_on.

Also tested that Inge's patch still applies cleanly, and it does.

I've added * and / to duration, so I was able to optimize these calculations. A new patch has been attached with the optimizations.