Question

我正在将Rails 2应用程序升级到Rails 3，当我执行rails console时它会抛出这个：

$ rails c production
/usr/lib/ruby/gems/1.8/gems/will_paginate-2.3.12/lib/will_paginate.rb:39:in `enable_activerecord': undefined method `returning' for WillPaginate:Module (NoMethodError)
    from /usr/lib/ruby/gems/1.8/gems/will_paginate-2.3.12/lib/will_paginate.rb:88
    from /usr/lib/ruby/gems/1.8/gems/bundler-1.0.18/lib/bundler/runtime.rb:68:in `require'
    from /usr/lib/ruby/gems/1.8/gems/bundler-1.0.18/lib/bundler/runtime.rb:68:in `require'
    from /usr/lib/ruby/gems/1.8/gems/bundler-1.0.18/lib/bundler/runtime.rb:66:in `each'
    from /usr/lib/ruby/gems/1.8/gems/bundler-1.0.18/lib/bundler/runtime.rb:66:in `require'
    from /usr/lib/ruby/gems/1.8/gems/bundler-1.0.18/lib/bundler/runtime.rb:55:in `each'
    from /usr/lib/ruby/gems/1.8/gems/bundler-1.0.18/lib/bundler/runtime.rb:55:in `require'
    from /usr/lib/ruby/gems/1.8/gems/bundler-1.0.18/lib/bundler.rb:120:in `require'
    from /home/neoriddle/proyectos/interkids/config/application.rb:7
    from /usr/lib/ruby/gems/1.8/gems/railties-3.0.9/lib/rails/commands.rb:21:in `require'
    from /usr/lib/ruby/gems/1.8/gems/railties-3.0.9/lib/rails/commands.rb:21
    from script/rails:6:in `require'
    from script/rails:6

我该如何解决这个问题？

Answer 1

更新will_paginate gem。

方法#returning已弃用，方法#tap。看起来你正在使用的旧版本的will_paginate gem仍然使用这种弃用的方法。

Answer 2

是的，那是真的。

我的详细信息......

我改变了Gemfile这一行：

gem 'will_paginate', '2.3.12'

这一行：

gem 'will_paginate', '>=3.0.pre'

然后我用这个更新Gemfile.lock：

bundle update will_paginate

我明白了：

$ bundle update will_paginate
Fetching source index for http://rubygems.org/
...
Installing will_paginate (3.0.2) 
Updating .gem files in vendor/cache
  * will_paginate-3.0.2.gem
Removing outdated .gem files from vendor/cache
  * will_paginate-2.3.12.gem
Your bundle is updated! Use `bundle show [gemname]` to see where a bundled gem is installed.

并且此错误已解决。

WillPaginate的未定义方法`returns'：Module

2 个答案: