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我正在尝试通过 Rails 控制台将一个值插入数据库，但它不起作用。

第一个命令是
u=users.create(:name=>"bob",:address=>"Dublin")

这是我运行第一个命令后的输出

 u=Users.create(:name=>"Ben",:address=>"Dublin")
   (0.2ms)  BEGIN
  SQL (0.3ms)  INSERT INTO `users` (`address`, `created_at`, `email`, `name`, `password`, `updated_at`) VALUES ('Dublin', '2012-04-16 23:15:48', NULL, 'Ben', NULL, '2012-04-16 23:15:48')
   (9.1ms)  COMMIT
=> #<Users id: 2, name: "Ben", password: nil, email: nil, address: "Dublin", created_at: "2012-04-16 23:15:48", updated_at: "2012-04-16 23:15:48">

这是第二个命令
t=tweets.create(:status=>"I am a tweet from bob",:user=>u)

NameError: undefined local variable or method `tweets' for main:Object
    from (irb):4
    from /opt/bitnami/ruby/lib/ruby/gems/1.9.1/gems/railties-3.2.1/lib/rails/commands/console.rb:47:in `start'
    from /opt/bitnami/ruby/lib/ruby/gems/1.9.1/gems/railties-3.2.1/lib/rails/commands/console.rb:8:in `start'
    from /opt/bitnami/ruby/lib/ruby/gems/1.9.1/gems/railties-3.2.1/lib/rails/commands.rb:41:in `<top (required)>'
    from script/rails:6:in `require'
    from script/rails:6:in `<main>'
4

1 回答 1

1

假设你有一个Tweet模型，你想要

u = User.first
t = Tweet.create(:status => "I am a tweet from bob", :user => u)
于 2012-04-16T22:29:57.637 回答