Contents

#!/usr/bin/env ruby

#
# Launches an irb session with an in-memory SQLite3 database and Node and Link
# ActiveRecord models.
#

require 'rubygems'
require 'activerecord'

src = File.dirname(__FILE__) + '/../lib/dagnabit.rb'
if File.exists?(src)
  require src
else
  require 'dagnabit'
end

require 'irb'

begin
  require 'sqlite3'
rescue LoadError
  gem 'sqlite3-ruby'
  require 'sqlite3'
end

ActiveRecord::Base.logger = Logger.new("#{File.basename(__FILE__)}.log")
ActiveRecord::Base.establish_connection(:adapter => 'sqlite3', :database => ':memory:')

ActiveRecord::Schema.define do
  [:edges, :edges_transitive_closure_tuples].each do |table|
    create_table table do |t|
      t.integer :ancestor_id
      t.integer :descendant_id
      t.string :ancestor_type
      t.string :descendant_type
    end
  end

  create_table :nodes do |t|
    t.string :data
  end
end

class Edge < ActiveRecord::Base
  acts_as_dag_link
end

class Node < ActiveRecord::Base
  acts_as_dag_node_linked_by 'Edge'
end

IRB.start

Version data entries

1 entries across 1 versions & 1 rubygems

Version	Path
dagnabit-2.2.1	bin/dagnabit-test