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theotherzach/gist:3750269

Created September 19, 2012 15:29
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gistfile1.rb
class Comment < ActiveRecord::Base
attr_accessible :subject, :body, :category, :reply_to
belongs_to :user
has_many :replies, :class_name => 'Comment',
:foreign_key => 'reply_to'
has_many :tags
scope :root, -> { where("reply_to = ?", 0 }
end
# Edited to rename Post to Comment
@theotherzach
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theotherzach commented Sep 19, 2012

I feel pretty OK about child posts going away after the parent is deleted. I can't think of any commenting system off the top of my head that does anything else with orphans.

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