Hey,
i have- map.resources :courses, :has_many => :pages
now what if i wanted for courses to has_many => :forums as well?
can i just do map.resources :courses, :has_many => :pages, :forums
?? because that doesn’t work. whats the syntax for- has many blank AND
blank…
lol reall noobie i know, but i just don’t know how to do it.
Have you tried?
map.resources :courses, :has_many => [:pages, :forums]
oh the brackets. thanks guys. 
i have- map.resources :courses, :has_many => :pages
now what if i wanted for courses to has_many => :forums as well?
can i just do map.resources :courses, :has_many => :pages, :forums
Nope, it would be:
map.resources :courses, :has_many => [:pages, :forums]
You map it to an array. In Ruby any hash style assignments in a method
call, which this is, but must come at the end to be implicitly converted
to
a hash. In the initial example you are doing this:
map.resources(:courses, {:has_many => :pages})
And that works just as well as the normal version, but it’s not as
readable.
If you did it your way, Ruby wouldn’t be able to make the last
arguments a
hash as you have just a key as the last argument (your :forums looks
like an
additional argument to map.resources not a part of :has_many).
Anyway, answered in the first line of code, hopefully the rest may make
it
slightly clearer.
Cheers,
Andy
oh yeah then what if i wanted–
a has many b, and b has many c, and c has many d
how would i do that in a route? like multiple stacked layers, how
would i write that in my routes.rb?
when I have more than one nested ‘has_many’ resource, i think about
creating a namespace…
http://seanbehan.com/ruby-on-rails/nesting-resources-in-rails-routes-rb-with-namespaces/
…this keeps your other controllers (forums, pages) clean and restful