ユーザー/新しいページにネストされたフォームを作成しようとしています。このフォームでは、ユーザー属性と会社属性も受け入れられます。フォームを送信する場合：
エラーメッセージの内容は次のとおりです。
ActiveModel::MassAssignmentSecurity::Error in UsersController#create
Can't mass-assign protected attributes: companies
app/controllers/users_controller.rb:12:in `create'
これが私のフォームのコードです：
<%= form_for @user do |f| %>
<%= render 'shared/error_messages', object: f.object %>
<%= f.fields_for :companies do |c| %>
<%= c.label :name, "Company Name"%>
<%= c.text_field :name %>
<% end %>
<%= f.label :name %>
<%= f.text_field :name %>
<%= f.label :email %>
<%= f.text_field :email %>
<%= f.label :password %>
<%= f.password_field :password %>
<%= f.label :password_confirmation %>
<%= f.password_field :password_confirmation %>
<br>
<% if current_page?(signup_path) %>
<%= f.submit "Sign Up", class: "btn btn-large btn-primary" %> Or, <%= link_to "Login", login_path %>
<% else %>
<%= f.submit "Update User", class: "btn btn-large btn-primary" %>
<% end %>
<% end %>
ユーザーコントローラー：
class UsersController < ApplicationController
def index
@user = User.all
end
def new
@user = User.new
end
def create
@user = User.create(params[:user])
if @user.save
session[:user_id] = @user.id #once user account has been created, a session is not automatically created. This fixes that by setting their session id. This could be put into Controller action to clean up duplication.
flash[:success] = "Your account has been created!"
redirect_to tasks_path
else
render 'new'
end
end
def show
@user = User.find(params[:id])
@tasks = @user.tasks
end
def edit
@user = User.find(params[:id])
end
def update
@user = User.find(params[:id])
if @user.update_attributes(params[:user])
flash[:success] = @user.name.possessive + " profile has been updated"
redirect_to @user
else
render 'edit'
end
#if @task.update_attributes params[:task]
#redirect_to users_path
#flash[:success] = "User was successfully updated."
#end
end
def destroy
@user = User.find(params[:id])
unless current_user == @user
@user.destroy
flash[:success] = "The User has been deleted."
end
redirect_to users_path
flash[:error] = "Error. You can't delete yourself!"
end
end
会社のコントローラー
class CompaniesController < ApplicationController
def index
@companies = Company.all
end
def new
@company = Company.new
end
def edit
@company = Company.find(params[:id])
end
def create
@company = Company.create(params[:company])
#if @company.save
#session[:user_id] = @user.id #once user account has been created, a session is not automatically created. This fixes that by setting their session id. This could be put into Controller action to clean up duplication.
#flash[:success] = "Your account has been created!"
#redirect_to tasks_path
#else
#render 'new'
#end
end
def show
@comnpany = Company.find(params[:id])
end
end
ユーザーモデル
class User < ActiveRecord::Base
has_secure_password
attr_accessible :name, :email, :password, :password_confirmation
has_many :tasks, dependent: :destroy
belongs_to :company
accepts_nested_attributes_for :company
validates :name, presence: true, length: { maximum: 50 }
VALID_EMAIL_REGEX = /\A[\w+\-.]+@[a-z\d\-.]+\.[a-z]+\z/i
validates :email, presence: true,
format: { with: VALID_EMAIL_REGEX },
uniqueness: { case_sensitive: false }
validates :password, length: { minimum: 6 }
#below not needed anymore, due to has_secure_password
#validates :password_confirmation, presence: true
end
会社モデル
class Company < ActiveRecord::Base
attr_accessible :name
has_and_belongs_to_many :users
end