Question

This question has probably been asked before, but I was wondering if there was a mechanism that allows me to to the opposite of :before_save?

eg

class MyObject < ActiveRecord::Base

    before_return :split_tags

    def split_tags
        self.tags = self.tags.split(',')
    end

end

I am saving tags of MyObject into a database, separated by commas. When asking for the MyObject back from the database, I’d like the tags to become an array.

Answer 1

Just change the getter:

def tags
  self["tags"] ? self["tags"].split(',') : []
end