Question

我按照本指南创建了用户模型授权： authentication-with-devise-and-cancancan

但是在用户模型中使用admin boolean列而不是角色表。以这种方式更改管理方法（用户模型）

def assign_role
 self.admin = false if self.admin.nil?
end

def admin?
 self.admin == true
end

一切正常。现在我创建了一个客户模型，然后又重复了同样的教程。当我尝试注册时，我会收到未定义的方法`name＆＃39;对于current_customer错误。有什么想法吗？

编辑：这是命令行中的代码：

rails g scaffold user name:string
rails g devise User
bundle exec rake db:migrate

rails g scaffold customer name:string
rails g devise Customer
bundle exec rake db:migrate

所以我有客户模型：

class Customer < ActiveRecord::Base

devise :database_authenticatable, :registerable,
     :recoverable, :rememberable, :trackable, :validatable
end

并在架构中：

create_table "customers", force: :cascade do |t|
t.string   "name"
t.string   "surname"
t.string   "nickname"
t.datetime "created_at",                          null: false
t.datetime "updated_at",                          null: false
t.string   "email",                  default: "", null: false
t.string   "encrypted_password",     default: "", null: false
t.string   "reset_password_token"
t.datetime "reset_password_sent_at"
t.datetime "remember_created_at"
t.integer  "sign_in_count",          default: 0,  null: false
t.datetime "current_sign_in_at"
t.datetime "last_sign_in_at"
t.inet     "current_sign_in_ip"
t.inet     "last_sign_in_ip"
end

 add_index "customers", ["email"], name: "index_customers_on_email", unique: true, using: :btree
 add_index "customers", ["reset_password_token"], name: "index_customers_on_reset_password_token", unique: true, using: :btree

与用户模型的唯一区别是：

validates_presence_of :name
before_save :assign_role

def assign_role
 self.admin = false if self.admin.nil?
end

def admin?
 self.admin == true
end

和布尔字段＆＃34; admin＆＃34;在用户中添加。使用Devise来验证两种不同的模型存在冲突吗？错误发生在第6行的应用程序布局中：

<div class='container'>

<%= yield %>

<% if customer_signed_in? %>
Signed in as <%= current_customer.name %>. Not you?
<%= link_to "Edit profile", edit_customer_registration_path %>
<%= link_to "Sign out", destroy_customer_session_path, :method => :delete    %>
<% else %>
<%= link_to "Sign up", new_customer_registration_path %> or <%= link_to    "sign in", new_customer_session_path %>
<% end %>

<% flash.each do |name, msg| %>

<%= content_tag :div, msg, id: "flash_#{name}" %>
<% end %>
</div>

Answer 1

确保您的模型Customer“具有名为”name“的属性。如果没有，请运行以下rake命令：

$ rails g migration AddNameToCustomer name:string
$ rake db:migrate

Rails使用Devise验证不同的模型

1 个答案: