ruby-on-rails - rails 3，加入更多三个表

Question

我想在 rails 3 中加入更多的三个表

我的代码

class offer < ActiveRecord::Base

归属地:用户
has_many :usercomments, :dependent => :destroy
has_many :comments, :through => :usercomments, :dependent => :destroy

结尾

类用户 < ActiveRecord::Base

has_many :usercomments, :dependent =>:destroy
has_many :comments,:through => :usercomments, :dependent => :destroy
has_many :offers, :dependent => :destroy

结尾

类 Usercomment < ActiveRecord::Base

归属地:用户
归属地:评论
归属地:提供

结尾

class Comment < ActiveRecord::Base

has_one :usercomment, :dependent => :destroy
has_one :offer, :through => :usercomments
has_one :user, :through => :usercomments

结尾

模式

create_table "offers", :force => true do |t|
t.整数“step_id”
t.integer "user_id"
t.date "offerdate"
结尾

create_table "users", :force => true do |t|
t.string "firstname", :limit => 100, :default => ""
t.string "lastname", :limit => 100, :default => ""
t.string "email", :limit => 100
结尾

create_table "usercomments", :force => true do |t|
t.integer "user_id"
t.integer "airoffer_id"
t.integer "comment_id"
t.boolean “共享”
结尾

create_table "comments", :force => true do |t|
t.string "评论"
t.datetime "created_at"
t.datetime "updated_at"
结尾

index.html.erb

<% airoffers.each do |airoffer| %>

？？？

<%结束%>

在我的 html.erb 页面中，我想找到对报价 (offer_id) 和用户 (user_id) 的评论。

你可以帮帮我吗 ？谢谢你，对不起我的英语表达，我是法国人。

Answer 1

在我看来，您想要的是:

class User < ActiveRecord::Base
   has_many :comments
   has_many :offers
end

class Offer < ActiveRecord::Base
   has_many :comments
   belongs_to :user
end

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

如果您想要属于特定用户和特定优惠的所有评论，只需执行 Comment.where(:user_id => # :offer_id => #)并传入您想要的用户和优惠。

这有帮助吗？