遞歸：包含在Rails ActiveRecord中

Question

說我有這些模型

class Project < ActiveRecord::Base
    has_many :comments
end

class Comment < ActiveRecord::Base
    belongs_to :project
    belongs_to :user
end

class User < ActiveRecord::Base
    has_many :comments
end

這樣我才能做到

p = Project.find(1, :include => :comments)
p.comments.collect(&:user).collect(&:name) # this executes select for each user

我怎么說我還想包括評論的用戶？

Answer 1

我相信:include => {:comments => :user}應該可行。