Trouble of table relations

Rails
1

environment： Ruby 1.9.2 Rails 3.0.9 win7-64 MySQL 5.1.53

HI, I’m working on a project.
It has three tables
and there are those name and relations.

“room_type” 1 to many “guest” 1 to many “reservation”

I need to access data from reservation model.
It works on the rails console by following command.

“res =Reservation.find(1).guest.room_type.name”

but in the page, it says “null” result.

Controller:

def show
@res=Reservation.find(params[:id])
end

Views:
<%= @res.guest.room_type.name %>

Could somebody tell me what’s going on ?

2

On 25 July 2011 12:15, HenrySource [email protected] wrote:

Views:
<%= @res.guest.room_type.name %>

Read the error carefully and work out what it is that is nil. If you
cannot work it out read the Rails Guide on debugging which will show
various ways of finding out what is going on. In particular you can
use ruby-debug to break into your code before the failing line and
inspect the data to see what the problem is. If you still cannot work
it out post the error message and stack trace here.

Colin