will_paginate宝石问题

Question

所以我尝试使用 will_paginate-rails3，但它不起作用，这是我控制器中的内容：

  def index
    @posts = Post.paginate(:page => params[:page], :per_page => 2 )

    respond_to do |format|
    format.html # index.html.erb
    format.xml  { render :xml => @posts }
  end
end

Gemfile: gem "will_paginate-rails3", '~>; 3.0.pre'

posts/index.html.erb: <%= will_paginate @posts %>

NoMethodError: NoMethodError (undefined method `paginate' for #<Class:0x12c3438>):
  app/controllers/posts_controller.rb:5:in `index'

Rendered C:/Ruby/lib/ruby/gems/1.9.1/gems/actionpack-3.0.3/lib/action_dispatch/middleware/templates/rescues/_trace.erb (0.0ms)
Rendered C:/Ruby/lib/ruby/gems/1.9.1/gems/actionpack-3.0.3/lib/action_dispatch/middleware/templates/rescues/_request_and_response.erb (0.0ms)
Rendered C:/Ruby/lib/ruby/gems/1.9.1/gems/actionpack-3.0.3/lib/action_dispatch/middleware/templates/rescues/diagnostics.erb within rescues/layout (15.6ms)

捆绑包安装说 gem 就在那里：

有人知道我在哪里犯了错误吗？谢谢，

马特

Answer 1

尝试使用

def index
    @posts = Post.all.paginate(:page => params[:page], :per_page => 2 )

    respond_to do |format|
    format.html # index.html.erb
    format.xml  { render :xml => @posts }
  end
end

Answer 2

我只

gem 'will_paginate'

在 Gemfile 中使用并且它有效

Answer 3

尝试将其放入您的 Gemfile 中：

gem "will_paginate", "~> 3.0.pre2"

Answer 4

尝试删除“全部”。我遇到了同样的问题，因为我删除了“全部”，所以现在可以了。
我的代码曾经是这样的：
.all.paginate :per_page => events_per_page, :page =>;参数[:页]
删除分页前的“全部”。希望它对你有用。 :)