gistfile1.builder

# extract_fixtures.rake
# by Paul Schreiber <paulschreiber at gmail.com>
# 15 June 2010
#
# I got this from Peter Gulezian <http://metoca.net/>
# Looks like another version is here 
# <http://redmine.rubyforge.org/svn/trunk/lib/tasks/extract_fixtures.rake>
#
# This is the inverse of the built-in rake db:fixtures:load
#
# Usage: rake db:fixtures:extract
#        rake db:fixtures:extract FIXTURES=foo
#        rake db:fixtures:extract FIXTURES=foo,bar
#

desc 'Create YAML test fixtures from data in an existing database.  
Defaults to development database. Set RAILS_ENV to override.'

namespace :db do
  namespace :fixtures do
    task :extract => :environment do
      sql  = "SELECT * FROM %s"
      skip_tables = ["schema_migrations"]
      ActiveRecord::Base.establish_connection

      if ENV["FIXTURES"]
        tables = ENV["FIXTURES"].split(",")
      else
        tables = (ActiveRecord::Base.connection.tables - skip_tables)
      end

      tables.each do |table_name|
        i = "000"
        File.open("#{RAILS_ROOT}/test/fixtures/#{table_name}.yml", 'w') do |file|
          data = ActiveRecord::Base.connection.select_all(sql % table_name)
          file.write data.inject({}) { |hash, record|
            hash["#{table_name}_#{i.succ!}"] = record
            hash
          }.to_yaml
        end
      end
    end
  end
end