Contents

class NestedSet < ActiveRecord::Migration

	def NestedSet.nested_set_construction(e)
		e.children.each { |c|
			e.add_child c
			nested_set_construction c
		}
	end

  def self.up
		add_column :elts, :lft, :integer
		add_column :elts, :rgt, :integer

		e = Elt.find 'ROOT'
		NestedSet.nested_set_construction e
  end

  def self.down
		remove_column :elts, :lft
		remove_column :elts, :rgt
  end
end

Version data entries

10 entries across 10 versions & 1 rubygems

Version	Path
parlement-0.10	db/migrate/002_nested_set.rb
parlement-0.11	db/migrate/002_nested_set.rb
parlement-0.12	db/migrate/002_nested_set.rb
parlement-0.13	db/migrate/002_nested_set.rb
parlement-0.14	db/migrate/002_nested_set.rb
parlement-0.17	db/migrate/002_nested_set.rb
parlement-0.6	db/migrate/002_nested_set.rb
parlement-0.7	db/migrate/002_nested_set.rb
parlement-0.8	db/migrate/002_nested_set.rb
parlement-0.9	db/migrate/002_nested_set.rb