Contents

class AddSubtasks < ActiveRecord::Migration
  def self.up
    add_column :tasks, :parent_id, :integer, :references => :tasks
    add_column :backlogs, :enable_subtasks, :boolean, :null => false, :default => false
  end

  def self.down
    Task.find(:all).each do |task|
      task.period_id = task.root_task.period_id
      task.save!
    end
    remove_column :tasks, :parent_id
    remove_column :backlogs, :enable_subtasks
  end
end

class Task < ActiveRecord::Base
  acts_as_tree :order => 'position'
  
  def root_task
    if parent
      parent.root_task
    else
      self
    end
  end

end

Version data entries

7 entries across 7 versions & 1 rubygems

Version	Path
backlog-0.0.0	db/migrate/009_add_subtasks.rb
backlog-0.0.1	db/migrate/009_add_subtasks.rb
backlog-0.0.2	db/migrate/009_add_subtasks.rb
backlog-0.0.4	db/migrate/009_add_subtasks.rb
backlog-0.0.5	db/migrate/009_add_subtasks.rb
backlog-0.1.0	db/migrate/009_add_subtasks.rb
backlog-0.1.1	db/migrate/009_add_subtasks.rb