ruby​​ on rails rake db：種子未定義的方法

Question

我想設置一個基本的用戶身份驗證 - 我有用戶登錄的東西排序，並且需要爲用戶添加角色。

基本上我想我的用戶有很多角色，這使他們能夠訪問權限。

我寫了一些種子數據，但不斷收到錯誤：

rake aborted! 
undefined method `roles' for #<Array:0x007f8c0581ba80> 

我的種子數據是這樣的：

#user 
user = User.create!([{ email: 'admin@admin.com', first_name: 'Admin', last_name: 'Test', password: 'admin', password_confirmation: 'admin'}]) 
user.roles << admins = Role.create!(:name => "Admin") 

#user roles 
create = Right.create!(:resource => "users", :operation => "CREATE") 
read = Right.create!(:resource => "users", :operation => "READ") 
update = Right.create!(:resource => "users", :operation => "UPDATE") 
delete = Right.create!(:resource => "users", :operation => "DELETE") 

#add the roles to the admin 
admins.rights << read 
admins.rights << create 
admins.rights << update 
admins.rights << delete 

耙分貝：遷移工作正常，所有表列是因爲我希望他們至。正當我運行rake db：seed時，它會中止上述錯誤。我明白錯誤在說什麼 - 我只是不知道我在哪裏定義has_many角色。

我已經經歷了模型非常密切，但似乎無法找到我錯過了什麼。

和我的模型文件看起來是這樣的：

class User < ActiveRecord::Base 
    has_secure_password 

    has_many :assignments 
    has_many :roles, :through => :assignments 

    attr_accessible :email, :first_name, :last_name, :password, :password_confirmation 

    validates_presence_of :email, :on => :create 
    validates :password, :confirmation => true 
    validates :password_confirmation, :presence => true 
    validates_uniqueness_of :email 

    #will be using this later to check if the user has access to resources/actions 
    # def can?(action, resource) 
    # roles.includes(:rights).for(action, resource).any? 
    # end 
end 

class Role < ActiveRecord::Base 
    has_many :grants 
    has_many :assignments 
    has_many :users, :through => :assignments 
    has_many :rights, :through => :grants 
    scope :for, lambda{|action, resource| 
      where("rights.operation = ? AND rights.resource = ?", 
        Right::OPERATION_MAPPINGS[action], resource 
       ) 
      } 
end 

class Right < ActiveRecord::Base 
    attr_accessible :operation, :resource 
    has_many :grants 
    has_many :roles, :through => :grants 
    OPERATION_MAPPINGS = { 
     "new" => "CREATE", 
     "create" => "CREATE", 
     "edit" => "UPDATE", 
     "update" => "UPDATE", 
     "destroy" => "DELETE", 
     "show" => "READ", 
     "index" => "READ" 
    } 
end 

class Grant < ActiveRecord::Base 
    attr_accessible :right_id, :role_id 
    belongs_to :role 
    belongs_to :right 
end 

class Assignment < ActiveRecord::Base 
    belongs_to :user 
    belongs_to :role 
    attr_accessible :role_id, :user_id 
end 

任何幫助，將不勝感激。

Answer 1

只需溝[]的和{}的第一線，如：！

user = User.create!(email: 'admin@admin.com', first_name: 'Admin', last_name: 'Test', password: 'admin', password_confirmation: 'admin') 

Answer 2

您不應將一個用戶創建爲用戶數組。嘗試刪除的方括號User.create（）

user = User.create!({email: 'admin@admin.com', first_name: 'Admin', last_name: 'Test', password: 'admin', password_confirmation: 'admin'})