Question

无法弄清楚为什么这不起作用。首次使用：has_many =＆gt; ：通过

继续获取uninitialized constant User::Employmentship

class User < ActiveRecord::Base
  has_many :employmentships
  has_many :companies, :through => :employmentships
  accepts_nested_attributes_for :employmentships, :allow_destroy => true, :reject_if => proc { |obj| obj.blank? }
  attr_accessible :email, :password, :password_confirmation, :firstname, :lastname, :username,  :role, :company_ids
end

class Company < ActiveRecord::Base
  has_many :employmentships
  has_many :users, :through => :employmentships
end


/views/users/_form.html.erb
<p>
   <%= for company in Company.all do %>
     <%= check_box_tag "user[company_ids][]", company.id, @user.companies.include?(company) %>
     <%= company.name%>
   <% end %>
</p>

编辑 - 如果我将@ user.companies.include？（公司）更改为false，我会收到表单，但没有更新。

编辑2 -

class Employmentship < ActiveRecord::Base
  belongs_to :company
  belongs_to :user
  attr_accessor :company_id, :user_id
end

Answer 1

您的就业模式在哪里？ has_many通过是通过另一个模型。

Rails 3 has_many：通过Form

1 个答案: