To clarify...
Node is a self-referential object. Here is the class for the Node
object.
class Node < ActiveRecord::Base
belongs_to :category
belongs_to :status
has_one :parents,
:class_name => "NodeGroup",
:foreign_key => "child_id"
has_one :parent, :through => :parents
has_many :children,
:class_name => "NodeGroup",
:foreign_key => "parent_id"
end
And here is the class for the NodeGroup.
class NodeGroup < ActiveRecord::Base
belongs_to :parent, :class_name => "Node"
belongs_to :child, :class_name => "Node"
end
The relationship is that Node can have one parent or many children.
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