Question

这是一个错误，但我调用了一些模型Test（因为它实际上是一个测试）。现在它回滚它并给模型另一个名称已经很晚了，因为这样我需要在更改模型名称时检查很多代码。问题。当我在控制台中调用关于Test的任何内容时，都会导致错误。

>> User.last
  #<User id: 44, email: nil, password_digest: nil, created_at: "2013-05-08 11:26:04", updated_at: "2013-05-08 11:26:04", guest: true>

User Load (4.0ms)  SELECT "users".* FROM "users" ORDER BY "users"."id" DESC LIMIT 1

>> @test=Test.last
NoMethodError: undefined method `last' for Test:Module
    from (irb):7
    from C:/Ruby193/lib/ruby/gems/1.9.1/gems/railties-3.2.11/lib/rails/commands/console.rb:47:in `start'
    from C:/Ruby193/lib/ruby/gems/1.9.1/gems/railties-3.2.11/lib/rails/commands/console.rb:8:in `start'
    from C:/Ruby193/lib/ruby/gems/1.9.1/gems/railties-3.2.11/lib/rails/commands.rb:41:in `<top (required)>'
    from C:/Users/HP/study/script/rails:6:in `require'
    from C:/Users/HP/study/script/rails:6:in `<top (required)>'
    from -e:1:in `load'
    from -e:1:in `<main>'

我该怎么办？

Answer 1

您可以重命名模型rails g migration rename_test。然后像这样编辑迁移

class RenameTest < ActiveRecord::Migration
  def self.up
    rename_table :test, :my_test
  end

 def self.down
    rename_table :my_test, :test
 end
end

Rails：测试模块和模型冲突

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