Data types principle

data_types.rb

class DataTypes
  def col(name, args)
    puts name
    puts args
  end
end

class Test
   def column_defs(&block)
     yield DataTypes.new
   end
end

test = Test.new

test.column_defs do |q|
  q.col :satu    ,type: :string, length: 10
  q.col :dua     ,type: :integer, length: 5
  q.col :tiga    ,type: :boolean, default: true
end