Circular References in Ruby

[grande]

I have a question about circular references. How would I accomplish this?

I want to make a Category that can have any number of sub-categories.

Would it just be like this?

class Category < ActiveRecord::Base

    belongs_to :category, has_many :category, :class_name => "Category", :foreign_key => "parent_id"

end

Any help would be greatly appreciated.
(I apologise, I'm pretty new at this)

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Call me barely Impressive Captain.

 

[azimuth0]

Just like that

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