Question

解决我的问题，Why do I get “undefined method 'paginate'” error in production?我正在讨论

bundle exec rails runner -e production 'WillPaginate'

服务器上的

就像这个github问题中的建议一样： https://github.com/mislav/will_paginate/issues/308#issuecomment-17167158

问题：如果我没有得到任何输出，是否确认，will_paginate正常运行？

我正在使用：Ruby 2.0.0p247，Rails 4.0.0，Ubuntu 12.10 LTS，Unicorn，Capistrano

Answer 1

你是对的：如果你没有看到输出，这意味着Ruby能够解析常量，这意味着在生产环境中正确加载了will_paginate。

如果不是，您将看到“未初始化的常量”错误，如下所示：

/home/ash/.rbenv/versions/2.1.0-preview1/lib/ruby/gems/2.1.0/gems/railties-4.0.0/lib/rails/commands/runner.rb:53:in `eval': uninitialized constant WillPaginate (NameError)
        from /home/ash/.rbenv/versions/2.1.0-preview1/lib/ruby/gems/2.1.0/gems/railties-4.0.0/lib/rails/commands/runner.rb:53:in `eval'
        from /home/ash/.rbenv/versions/2.1.0-preview1/lib/ruby/gems/2.1.0/gems/railties-4.0.0/lib/rails/commands/runner.rb:53:in `<top (required)>'
        from /home/ash/.rbenv/versions/2.1.0-preview1/lib/ruby/gems/2.1.0/gems/railties-4.0.0/lib/rails/commands.rb:86:in `require'
        from /home/ash/.rbenv/versions/2.1.0-preview1/lib/ruby/gems/2.1.0/gems/railties-4.0.0/lib/rails/commands.rb:86:in `<top (required)>'
        from bin/rails:4:in `require'
        from bin/rails:4:in `<main>'

确认will_paginate已加载

1 个答案: