[Rails] Re: Re: Re: Modelling Foreign Keys

[Arch Stanton]

Steve Koppelman wrote:
> The point of telling Rails about the relationships between models is not 
> because Rails will magically create scaffolding for you but because 
> you'll be able to access you data through the relations.
> 
> For instance, once you've set up those two relationships in your models, 
> you can do things like
> 
> @advisor = Advisor.find(1)
> @students = @advisor.students
> 
> and conversely, if you have a student selected into @student, you can 
> get the advisor's name simply via @student.advisor.name
> 
> Or if you're updating a student's attributes in a controller action, if 
> you set some of @student.advisor's attributes, the changes to the 
> advisor will also get saved when you simply call @student.save
> 
> and all sorts of stuff like that.
> 

Thanks for the reply.  I cleaned up my typos and tried calling 
@test.test_type.id and it works.  That is cool.

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