gistfile1.ex

defmodule DBT do
  def get_by_key(module,key,value) do
		s = Exquisite.match module,
			where: key == value
		Amnesia.transaction do
			case apply(module,:select,[s]) do
				nil -> []
				res -> res.values		
			end		
		end	
	end
	# add or update
	def aou(module,key,attributes) do
		case get_by_key(module,key,value) do
			[] -> 
				Amnesia.transaction do
					apply(module,:new,[attributes])
				end
			record -> 
				Amnesia.transaction do
					record.update(attributes) 	
				end	
		end
		
	end
end