相关疑难解决方法(0)

我想建立一个多态关系accepts_nested_attributes_for.这是代码:

class Contact <ActiveRecord::Base
  has_many :jobs, :as=>:client
end

class Job <ActiveRecord::Base
  belongs_to :client, :polymorphic=>:true
  accepts_nested_attributes_for :client
end

当我试图访问Job.create(..., :client_attributes=>{...}给我NameError: uninitialized constant Job::Client

我确实发现了一些关于Rails关联的问题,这些关联有点像我的问题,但对于我的生活,我似乎无法理解如何使用belongs_to多个模型.

这是我打算拥有的表结构:

User
 id

Post
 id
 user_id #foreign key; a post belongs to a User aka "Who created this post"

Comment
 id
 user_id #foreign key; a comment belongs to a User aka "Who made this comment"
 post_id #foreign key; a comment belongs to a Post aka "What post this comment is for"

而协会:

User
 has_many :posts
 has_many :comments

Post
 belongs_to :user
 has_many :comments

Comment
 belongs_to :user
 belongs_to :post

这是正确的方法吗？