Ruby on Rails：will_paginate无法正常工作

Question

If I click the next or previous link it doesn't go to the next or previous page.

All posts are on same page, but there are links next, previous at bottom.

In PostsController:

@posts = Post.paginate(:per_page => 15, :page => params[:page], :order => 'created_at DESC')

in posts/index:

<%= will_paginate @posts%>

Where is the problem with will_paginate?

Answer 1

您必须先定购才能进行分页，因此将其更改为

@posts = Post.order('created_at DESC').paginate(:per_page => 15, :page => params[:page])

Answer 2

更新为will_paginate , '3.1.7'解决了我的问题

Answer 3

Not sure if this is causing your error, but ordering should be done outside of will_paginate.

@posts = Post.paginate(:per_page => 15, :page => params[:page]).order('created_at DESC')

This is how it should be done in Rails 3.

I've also had trouble setting the per_page parameter within the controller. You could try setting it in the model instead.

class Post
  self.per_page = 10
end