Question

在我的ruby 2.3.1中，我收到此错误：

 => Booting WEBrick
=> Rails 4.2.6 application starting in development on http://localhost:3000
=> Run `rails server -h` for more startup options
=> Ctrl-C to shutdown server
Exiting
/root/.rbenv/versions/2.3.1/lib/ruby/gems/2.3.0/gems/will_paginate-3.0.pre2/lib/will_paginate/railtie.rb:15:in `block in <class:Railtie>': uninitialized constant WillPaginate::Railtie::Forbidden (NameError)
        from /root/.rbenv/versions/2.3.1/lib/ruby/gems/2.3.0/gems/railties-4.2.6/lib/rails/initializable.rb:30:in `instance_exec'
        from /root/.rbenv/versions/2.3.1/lib/ruby/gems/2.3.0/gems/railties-4.2.6/lib/rails/initializable.rb:30:in `run'
        from /root/.rbenv/versions/2.3.1/lib/ruby/gems/2.3.0/gems/railties-4.2.6/lib/rails/initializable.rb:55:in `block in run_initializers'
        from /root/.rbenv/versions/2.3.1/lib/ruby/2.3.0/tsort.rb:228:in `block in tsort_each'
        from /root/.rbenv/versions/2.3.1/lib/ruby/2.3.0/tsort.rb:350:in `block (2 levels) in each_strongly_connected_component'
        from /root/.rbenv/versions/2.3.1/lib/ruby/2.3.0/tsort.rb:431:in `each_strongly_connected_component_from'
        from /root/.rbenv/versions/2.3.1/lib/ruby/2.3.0/tsort.rb:349:in `block in each_strongly_connected_component'
        from /root/.rbenv/versions/2.3.1/lib/ruby/2.3.0/tsort.rb:347:in `each'
        from /root/.rbenv/versions/2.3.1/lib/ruby/2.3.0/tsort.rb:347:in `call'
        from /root/.rbenv/versions/2.3.1/lib/ruby/2.3.0/tsort.rb:347:in `each_strongly_connected_component'
        from /root/.rbenv/versions/2.3.1/lib/ruby/2.3.0/tsort.rb:226:in `tsort_each'
        from /root/.rbenv/versions/2.3.1/lib/ruby/2.3.0/tsort.rb:205:in `tsort_each'
        from /root/.rbenv/versions/2.3.1/lib/ruby/gems/2.3.0/gems/railties-4.2.6/lib/rails/initializable.rb:54:in `run_initializers'
        from /root/.rbenv/versions/2.3.1/lib/ruby/gems/2.3.0/gems/railties-4.2.6/lib/rails/application.rb:352:in `initialize!'
        from /home/bistipweb/config/environment.rb:5:in `<top (required)>'
        from /root/.rbenv/versions/2.3.1/lib/ruby/gems/2.3.0/gems/polyglot-0.3.1/lib/polyglot.rb:64:in `require'
        from /root/.rbenv/versions/2.3.1/lib/ruby/gems/2.3.0/gems/polyglot-0.3.1/lib/polyglot.rb:64:in `require'
        from /home/bistipweb/config.ru:3:in `block in <main>'
        from /root/.rbenv/versions/2.3.1/lib/ruby/gems/2.3.0/gems/rack-1.6.0/lib/rack/builder.rb:55:in `instance_eval'
        from /root/.rbenv/versions/2.3.1/lib/ruby/gems/2.3.0/gems/rack-1.6.0/lib/rack/builder.rb:55:in `initialize'
        from /home/bistipweb/config.ru:in `new'
        from /home/bistipweb/config.ru:in `<main>'
        from /root/.rbenv/versions/2.3.1/lib/ruby/gems/2.3.0/gems/rack-1.6.0/lib/rack/builder.rb:49:in `eval'
        from /root/.rbenv/versions/2.3.1/lib/ruby/gems/2.3.0/gems/rack-1.6.0/lib/rack/builder.rb:49:in `new_from_string'
        from /root/.rbenv/versions/2.3.1/lib/ruby/gems/2.3.0/gems/rack-1.6.0/lib/rack/builder.rb:40:in `parse_file'
        from /root/.rbenv/versions/2.3.1/lib/ruby/gems/2.3.0/gems/rack-1.6.0/lib/rack/server.rb:299:in `build_app_and_options_from_config'
        from /root/.rbenv/versions/2.3.1/lib/ruby/gems/2.3.0/gems/rack-1.6.0/lib/rack/server.rb:208:in `app'
        from /root/.rbenv/versions/2.3.1/lib/ruby/gems/2.3.0/gems/railties-4.2.6/lib/rails/commands/server.rb:61:in `app'
        from /root/.rbenv/versions/2.3.1/lib/ruby/gems/2.3.0/gems/rack-1.6.0/lib/rack/server.rb:336:in `wrapped_app'
        from /root/.rbenv/versions/2.3.1/lib/ruby/gems/2.3.0/gems/railties-4.2.6/lib/rails/commands/server.rb:139:in `log_to_stdout'
        from /root/.rbenv/versions/2.3.1/lib/ruby/gems/2.3.0/gems/railties-4.2.6/lib/rails/commands/server.rb:78:in `start'
        from /root/.rbenv/versions/2.3.1/lib/ruby/gems/2.3.0/gems/railties-4.2.6/lib/rails/commands/commands_tasks.rb:80:in `block in server'
        from /root/.rbenv/versions/2.3.1/lib/ruby/gems/2.3.0/gems/railties-4.2.6/lib/rails/commands/commands_tasks.rb:75:in `tap'
        from /root/.rbenv/versions/2.3.1/lib/ruby/gems/2.3.0/gems/railties-4.2.6/lib/rails/commands/commands_tasks.rb:75:in `server'
        from /root/.rbenv/versions/2.3.1/lib/ruby/gems/2.3.0/gems/railties-4.2.6/lib/rails/commands/commands_tasks.rb:39:in `run_command!'
        from /root/.rbenv/versions/2.3.1/lib/ruby/gems/2.3.0/gems/railties-4.2.6/lib/rails/commands.rb:17:in `<top (required)>'
        from bin/rails:4:in `require'
        from bin/rails:4:in `<main>'

我的railtie.rb是：

require 'will_paginate'
require 'will_paginate/collection'

module WillPaginate
        class Railtie < Rails::Railtie
                initializer "will_paginate.active_record" do |app|
                        if defined? ::ActiveRecord
                                require 'will_paginate/finders/active_record'
                                WillPaginate::Finders::ActiveRecord.enable!
                        end
                end

                initializer "will_paginate.action_dispatch" do |app|
                        if defined?(ActionController::Base)
                                config.action_dispatch.rescue_responses.update('ActionController::Forbidden'=>Forbidden)
                        end
                 end

                initializer "will_paginate.action_view" do |app|
                        require 'will_paginate/view_helpers/action_view'
                        ActionView::Base.send(:include, WillPaginate::ViewHelpers::ActionView)
                end
         end
end

我该如何解决？

Answer 1

如果您使用的是最近的will_paginate版本，则无需添加任何初始化程序代码即可将will_paginate挂钩到Rails项目中。

我看到你正在使用3.0.pre2版本，将其更新为Gemfile中的3.0.7，bundle update will_paginate并删除您在railtie.rb中添加的所有代码，我认为一切都会好的。

Answer 2

尝试：

initializer "will_paginate.action_dispatch" do |app|
  if defined?(ActionController::Base)
    config.action_dispatch.rescue_responses.update('ActionController::Forbidden'=>Forbidden)
  end
end

Answer 3

我没有找到任何理由让您添加railtie.rb文件。我相信只需添加宝石并在视图中使用它就可以了。

ActionDispatch :: ShowExceptions的未定义方法`rescue_responses'：Class（NoMethodError）

3 个答案: