Rails Nesting paths, not resources -

i have author model name field - has_many articles.

i have article model name , description fields - belongs_to author , has_many comments.

finally, have comment model, comment_text , article_id fields - belongs_to article,

i looking nesting paths i. e. ,(authors/:id/comments) how nest paths, not resources?

to clarify, don't want use author_id in comment model, when visit authors/:id/comments, should able see articles associated author , comment on them.

author

has_many :articles has_many :comments, :through => :articles (this line give comments author) 

article

belongs_to :author (means has author_id field) has_many :comments 

comment

belongs_to :article 

if above structure there in model, can do:

@author = author.where(:id => some_id) @comments = @author.comments 

you don't need have author_id in comment table.