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有什么问题，我该如何解决？

当我在rails控制台中运行时page.editors

并得到以下语法错误：

...simple_cms/app/models/admin_user.rb:8: syntax error, unexpected ':', expecting keyword_end
  scope: named, lambda {|first,last| ...
        ^
...simple_cms/app/models/admin_user.rb:8: syntax error, unexpected '\n', expecting :: or '[' or '.'

这是我的代码...

admin_user.rb

class AdminUser < ActiveRecord::Base
  attr_accessible :title, :body, :username, :first_name, :last_name
  # To configure a different table name
  # set_table_name("admin_users")

  has_and_belongs_to_many :pages

  scope: named, lambda {|first,last| where(:first_name => first, :last_name => last)}

end

页面.rb

class Page < ActiveRecord::Base
  attr_accessible :title, :body, :name, :permalink, :position

  belongs_to :subject
  has_many :sections
  has_and_belongs_to_many :editors, :class_name => "AdminUser"
end

alter_users.rb

class AlterUsers < ActiveRecord::Migration
  def up
    rename_table("users", "admin_users")
    add_column("admin_users", "username", :string, :limit => 25)
    change_column("admin_users", "email", :string, :limit => 100)
    rename_column("admin_users", "password", "hashed_password")
      add_column("admin_users", "salt", :string, :limit => 40)
      puts "*** About to add an index ***"
      add_index("admin_users", "username")
  end

  def down
    remove_index("admin_users", "username")
    remove_column("admin_users", "salt")
    rename_column("admin_users", "hashed_password", "password")
    change_column("admin_users", "email", :string, :default => "", :null => false)
    remove_column("admin_users", "username")
    rename_table("admin_users", "users")
  end
end

create_admin_users_pages_join.rb

class CreateAdminUsersPagesJoin < ActiveRecord::Migration
  def up
    create_table :admin_users_pages, :id => false do |t|
        t.integer "admin_user_id"
        t.integer "page_id"
    end
    add_index :admin_users_pages, ["admin_user_id", "page_id"]
  end

  def down
    drop_table :admin_users_pages
  end
end

不要在这行下面阅读：Stack Overflow 想让我添加更多文本，因为这个问题有很多代码。但我认为拥有代码会帮助那些想帮助我的人:)

4

1 回答 1

1

删除范围上的冒号，并将其放在命名之前： 

scope: named, lambda {|first,last| ...
scope :named, lambda {|first,last| ...
于 2013-05-02T20:24:33.233 回答