def get_current_assignment (user_id)
    @assignments = Assignment.where(:user_id => user_id)
    @assignments = @assignments.where("turned_in = ? OR turned_in = ?", false, nil)
  	@assignments =  @assignments.where("completed_online = ? OR completed_online = ?", false, nil)
  	@assignment = @assignments.where(:due => (Date.today..Date.today + 4)).first
  	return @assignment
  end#get_current_assignment