view db/migrate/20100313132032_add_issues_nested_sets_columns.rb @ 947:be4106d14a35 bibplugin_bibtex

Parses a pasted bibtex entry and correctly adds its fields *except* the author names/institutions. Todo: Parse the author names/institutions and show the errors (flashing on the top of the page).

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