Removing "duplicate objects"

Posted by keruilin on Stack Overflow See other posts from Stack Overflow or by keruilin
Published on 2010-05-07T16:14:40Z Indexed on 2010/05/07 16:18 UTC
Read the original article Hit count: 133

Filed under:

ruby-on-rails

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ruby

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activerecord

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arrays

Let's say I have an array of objects from the same class, with two attributes of concern here: name and created_at.

How do I find objects with the same name (considered dups) in the array, and then delete the duplicate record in the database. The object with the most-recent created_at date, however, is the one that must be deleted.

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