ruby-on-rails - 有没有办法在连接表中设置额外的值

Question

好的，所以我在 Rails 中有这种关系：

class Position < ActiveRecord::Base
  belongs_to :company
  belongs_to :user
end

class User < ActiveRecord::Base
  has_many :companies, :through => :positions
  has_many :positions

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

这是职位的架构：

create_table "positions", :force => true do |t|
  t.integer  "company_id"
  t.integer  "user_id"
  t.datetime "created_at",                     :null => false
  t.datetime "updated_at",                     :null => false
  t.boolean  "regular_user", :default => true
end

这regular_user是向管理员和员工发出信号，所以我的问题是如何设置regular_user这些0数据false：

@user = User.find(params[:user_id])
@company = Company.find(params[:company_id])
@user.companies << @company

有一个更好的方法吗？我刚在想：

Position.create(user_id: params[:user_id], company_id: params[:company_id], regular_user: 0)

但是有建立协会的标准吗？

Answer 1

尝试这个：

class User < ActiveRecord::Base
  has_many :positions
  has_many :companies, :through => :positions
  has_many :companies_as_non_regular_user, :through => :positions, 
           :conditions => {:"positions.regular_user" => false}
  ...
end

@user = User.find(params[:user_id])
@company = Company.find(params[:company_id])
@user.companies_as_non_regular_user << @company