我有时间试图让这个嵌套模型工作。我已经尝试了各种复数形式/单数形式，完全删除了 attr_accessible，谁知道还有什么。
餐厅.rb：
# == RESTAURANT MODEL
#
# Table name: restaurants
#
# id :integer not null, primary key
# name :string(255)
# created_at :datetime not null
# updated_at :datetime not null
#
class Restaurant < ActiveRecord::Base
attr_accessible :name, :job_attributes
has_many :jobs
has_many :users, :through => :jobs
has_many :positions
accepts_nested_attributes_for :jobs, :allow_destroy => true
validates :name, presence: true
end
工作.rb：
# == JOB MODEL
#
# Table name: jobs
#
# id :integer not null, primary key
# restaurant_id :integer
# shortname :string(255)
# user_id :integer
# created_at :datetime not null
# updated_at :datetime not null
#
class Job < ActiveRecord::Base
attr_accessible :restaurant_id, :shortname, :user_id
belongs_to :user
belongs_to :restaurant
has_many :shifts
validates :name, presence: false
end
餐厅控制器.rb：
class RestaurantsController < ApplicationController
before_filter :logged_in, only: [:new_restaurant]
def new
@restaurant = Restaurant.new
@user = current_user
end
def create
@restaurant = Restaurant.new(params[:restaurant])
if @restaurant.save
flash[:success] = "Restaurant created."
redirect_to welcome_path
end
end
end
新的.html.erb：
<% provide(:title, 'Restaurant') %>
<%= form_for @restaurant do |f| %>
<%= render 'shared/error_messages' %>
<%= f.label "Restaurant Name" %>
<%= f.text_field :name %>
<%= f.fields_for :job do |child_f| %>
<%= child_f.label "Nickname" %>
<%= child_f.text_field :shortname %>
<% end %>
<%= f.submit "Done", class: "btn btn-large btn-primary" %>
<% end %>
输出参数：
{"utf8"=>"✓",
"authenticity_token"=>"DjYvwkJeUhO06ds7bqshHsctS1M/Dth08rLlP2yQ7O0=",
"restaurant"=>{"name"=>"The Pink Door",
"job"=>{"shortname"=>"PD"}},
"commit"=>"Done"}
我收到的错误是：
ActiveModel::MassAssignmentSecurity::Error in RestaurantsController#create
Cant mass-assign protected attributes: job
Rails.root: /home/johnnyfive/Dropbox/Projects/sa
Application Trace | Framework Trace | Full Trace
app/controllers/restaurants_controller.rb:11:in `new'
app/controllers/restaurants_controller.rb:11:in `create'
任何人都知道如何让它工作？谢谢！