Can't pass Set class into import

[camallen]

I'm using a set to create a uniq list of AR records to upsert into my database.

It appears that there is a direct test for Array in

activerecord-import/lib/activerecord-import/import.rb

Line 142 in a0d612b

if args.last.is_a?( Array ) && args.last.first.is_a?(ActiveRecord::Base)

Would you be open to a PR to allow duck type objects that behave like arrays?

[jkowens]

Hi @camallen, I haven't been spending much time with this code base lately so I can't think of any potential roadblocks off the top of my head. I would be open to a PR if you find that it is feasable.

Thanks!