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view db/migrate/20100313132032_add_issues_nested_sets_columns.rb @ 699:2b665b7e67f4 feature_36

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Bug #297 - Simplified JS; no more need to have BibtexEntryType.all_fields; solves the "Please Select" bug in New Publication view.
author luisf <luis.figueira@eecs.qmul.ac.uk>
date Mon, 19 Sep 2011 16:44:12 +0100
parents 513646585e45
children cbb26bc654de
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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