Bigint support for DataMapper/MySQL

dm-bigint.rb

# Bigint support for DataMapper/MySQL
#
# e.g.)
#   property :value, Bigint

gem 'dm-core', '0.9.11'

require 'dm-core'
require 'dm-core/adapters/mysql_adapter'

module DataMapper
  module Adapters
    class DataObjectsAdapter
      alias property_schema_hash__without_bigint property_schema_hash
    end

    class MysqlAdapter
      alias property_schema_hash__without_bigint property_schema_hash

      def property_schema_hash(repository, property)
        schema = property_schema_hash__without_bigint(repository, property)
        if schema[:primitive] == 'INT' && schema[:size] && schema[:size] > 11
          schema[:primitive] = 'BIGINT'
        end
        schema
      end
    end
  end

  module Types
    class Bigint < DataMapper::Type
      primitive Integer
      size 20
    end
  end
end