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paper-trail-gem--paper_trail/lib/generators/paper_trail/install_generator.rb

38 lines
1.3 KiB
Ruby

require 'rails/generators'
require 'rails/generators/active_record'
module PaperTrail
class InstallGenerator < ::Rails::Generators::Base
include ::Rails::Generators::Migration
source_root File.expand_path('../templates', __FILE__)
class_option :with_changes, :type => :boolean, :default => false,
:desc => "Store changeset (diff) with each version"
class_option :with_associations, :type => :boolean, :default => false,
:desc => "Store transactional IDs to support association restoration"
desc 'Generates (but does not run) a migration to add a versions table.'
def create_migration_file
add_paper_trail_migration('create_versions')
add_paper_trail_migration('add_object_changes_to_versions') if options.with_changes?
if options.with_associations?
add_paper_trail_migration('create_version_associations')
add_paper_trail_migration('add_transaction_id_column_to_versions')
end
end
def self.next_migration_number(dirname)
::ActiveRecord::Generators::Base.next_migration_number(dirname)
end
protected
def add_paper_trail_migration(template)
migration_dir = File.expand_path('db/migrate')
if !self.class.migration_exists?(migration_dir, template)
migration_template "#{template}.rb", "db/migrate/#{template}.rb"
end
end
end
end