view db/migrate/20100313132032_add_issues_nested_sets_columns.rb @ 307:c7d3b58bd01c feature_117

Produce a single en.yml which contains British texts but describes itself as just English.
The difference between en and en-GB is minimal for this application, apart from date formats, and the pain in maintaining both is significant. See #117 and #58.

class AddIssuesNestedSetsColumns < ActiveRecord::Migration
  def self.up
    add_column :issues, :parent_id, :integer, :default => nil
    add_column :issues, :root_id, :integer, :default => nil
    add_column :issues, :lft, :integer, :default => nil
    add_column :issues, :rgt, :integer, :default => nil
    
    Issue.update_all("parent_id = NULL, root_id = id, lft = 1, rgt = 2")
  end

  def self.down
    remove_column :issues, :parent_id
    remove_column :issues, :root_id
    remove_column :issues, :lft
    remove_column :issues, :rgt
  end
end