1

当我打开我的 rails 控制台，运行 ./script/console (script folder contains a console file) 时，我在控制台中输入 Users.find(:all) 并收到此消息

'NameError: uninitialized constant User
    from (irb):1
'

每次在控制台中运行命令时，我都会收到类似的消息（知道我没有通过 irb 连接）。我用谷歌搜索了一下，看到堆栈上有一些类似的问题，但我没有得到任何满意的答案。有人有想法吗？

Eidt 1：我不知道它是否有用，但这里建议发布用户模型类

require "digest/sha1"
require_dependency "event"

class User < ActiveRecord::Base
  include UrlLinting
  include Gitorious::Authorization

  has_many :projects
  has_many :memberships, :dependent => :destroy
  has_many :groups, :through => :memberships
  has_many :repositories, :as => :owner, :conditions => ["kind != ?", Repository::KIND_WIKI],
    :dependent => :destroy
  has_many :cloneable_repositories, :class_name => "Repository",
     :conditions => ["kind != ?", Repository::KIND_TRACKING_REPO]
  has_many :committerships, :as => :committer, :dependent => :destroy
  has_many :commit_repositories, :through => :committerships, :source => :repository,
  :conditions => ["repositories.kind NOT IN (?)", Repository::KINDS_INTERNAL_REPO]
  has_many :ssh_keys, :order => "id desc", :dependent => :destroy
  has_many :comments
  has_many :email_aliases, :class_name => "Email", :dependent => :destroy
  has_many :events, :order => "events.created_at asc", :dependent => :destroy
  has_many :events_as_target, :class_name => "Event", :as => :target
  has_many :favorites, :dependent => :destroy
  has_many :feed_items, :foreign_key => "watcher_id"
  has_many :content_memberships, :as => :member

  # Virtual attribute for the unencrypted password
  attr_accessor :password, :current_password

  attr_protected :login, :is_admin, :password, :current_password

  # For new users we are a little more strict than for existing ones.
  USERNAME_FORMAT = /[a-z0-9\-_\.]+/i.freeze
  USERNAME_FORMAT_ON_CREATE = /[a-z0-9\-]+/.freeze
  validates_presence_of     :login, :email,               :if => :password_required?
  validates_format_of       :login, :with => /^#{USERNAME_FORMAT_ON_CREATE}$/i, :on => :create
  validates_format_of       :login, :with => /^#{USERNAME_FORMAT}$/i, :on => :update
  validates_format_of       :email, :with => Email::FORMAT
  validates_presence_of     :password,                   :if => :password_required?
  validates_presence_of     :password_confirmation,      :if => :password_required?
  validates_length_of       :password, :within => 4..40, :if => :password_required?
  validates_confirmation_of :password,                   :if => :password_required?
  validates_length_of       :login,    :within => 3..40
  validates_length_of       :email,    :within => 3..100
  validates_uniqueness_of   :login, :email, :case_sensitive => false
  validates_acceptance_of :terms_of_use, :on => :create, :allow_nil => false
  validates_format_of     :avatar_file_name, :with => /\.(jpe?g|gif|png|bmp|svg|ico)$/i, :allow_blank => true

  before_save :encrypt_password
  before_create :make_activation_code
  before_validation :lint_identity_url, :downcase_login
  after_save :expire_avatar_email_caches_if_avatar_was_changed
  after_destroy :expire_avatar_email_caches

  state_machine :aasm_state, :initial => :pending do
    state :terms_accepted

    event :accept_terms do
      transition :pending => :terms_accepted
    end

  end

编辑 2：当我运行控制台时，我省略了一些错误消息（但控制台加载）

 /var/www/gitorious/config/environment.rb:25:RuntimeError: Your config/gitorious.yml does not have an entry for your current Rails environment. Please consult config/gitorious.sample.yml for instructions.
/usr/lib/ruby/gems/1.8/gems/rails-2.3.14/lib/rails/backtrace_cleaner.rb:2:NameError: uninitialized constant ActiveSupport::BacktraceCleaner
/usr/lib/ruby/gems/1.8/gems/rails-2.3.14/lib/console_with_helpers.rb:5:NameError: uninitialized constant ApplicationController
4

3 回答 3

3

从错误中，我可以看到您从irb. 如果您想从 rails 控制台访问表，irb则应在命令行中键入：

rails console

其次，如果你想从 users 表中获取所有记录，你应该使用：

User.all
于 2017-02-03T19:42:07.357 回答
1

假设您的User模型定义如下： app/models/user.rb

class User < ActiveRecord::Base
  #Your things
end

User不使用型号名称（即）Users：

User.find(:all) or User.all  # This will display all user records
于 2013-02-17T16:24:16.820 回答
1

这就是诀窍：我没有运行./script/console，而是运行

export RAILS_ENV=production && ./script/console
于 2013-02-17T18:42:54.933 回答