will_paginate is a pagination library that integrates with Ruby on Rails, Sinatra, Merb, DataMapper and Sequel.


ruby ## Gemfile for Rails 3+, Sinatra, and Merb gem 'will_paginate', '~> 3.1.0'

See installation instructions on the wiki for more info.

Basic will_paginate use

``` ruby ## perform a paginated query: @posts = Post.paginate(:page => params[:page])

or, use an explicit “per page” limit:

Post.paginate(:page => params[:page], :per_page => 30)

<%= will_paginate @posts %> ```

And that’s it! You’re done. You just need to add some CSS styles to make those pagination links prettier.

You can customize the default “per_page” value:

``` ruby # for the Post model class Post self.per_page = 10 end

set per_page globally

WillPaginate.per_page = 10 ```

New in Active Record 3:

``` ruby # paginate in Active Record now returns a Relation Post.where(:published => true).paginate(:page => params[:page]).order(‘id DESC’)

the new, shorter page() method

Post.page(params[:page]).order(‘created_at DESC’) ```

See the wiki for more documentation. Ask on the group if you have usage questions. Report bugs on GitHub.

Happy paginating.