Ruby on rails 具有并属于多个模型变量名

因此，我使用rails 4成功地将我的用户链接到了我的Products表，具体操作如下：

users.rb

  has_and_belongs_to_many :products
  accepts_nested_attributes_for :products
  # Setup accessible (or protected) attributes for your model
  attr_accessible :email, :password, :password_confirmation, :remember_me, :role_ids, :product_ids

products.rb

has_and_belongs_to_many :users

view/userse/_form.html.erb

<%= simple_form_for(@user) do |f| %>
<%= f.association :products, label: "Product Release Email", value_method: :id, :as => :check_boxes %>

但是我得到了错误“uninitialized constant User:：product”。所以我想我的一些参考资料是错的。

大写：

class_name: "Product"

class_name: "Product"