Has_many relationship in Gem

Hello,

I am creating a gem in which I need to add a new has_many
relationships:


included do |base|
base.has_many :foos
end

def some_method
self.foos #
end

Here Foo is a model I created and it is places in app/models/Foo.rb

I wonder if I can use syntax like the line marked with #?

If yes, I got NoMethodError for using “self.foos” when writing rspec
testing, is there any reason like forgeting to include some file of
raising such an error?

Thanks!

T