A Scope & Engine based clean and powerful and customizable and sophisticated paginator for Rails 3
Does not globally pollute Array, Hash, Object or AR::Base.
Easy to use
Just bundle the gem, then your models are ready to be paginated. No configuration. Don't have to define anything in your models or helpers.
Scope based simple API
Everything is method chainable with less Hasheritis. You know, that's the Rails 3 way. No special collection class or something for the paginated values but uses a general AR::Relation instance. So, of course you can chain any other conditions before or after the paginator scope.
Engine based customizable helper
As the whole pagination helper is basically just a collection of links and non-links, Kaminari renders each of them through its own partial template inside the Engine. So, you can easily modify their behaviour or style or whatever by overriding partial templates.
The pagination helper outputs the HTML5 <nav> tag by default. Plus, the helper supports the Rails 3 unobtrusive Ajax.
3.0.x and 3.1
Put this line in your Gemfile:
Fetch the 7th page of the users (per_page = 25 by default)
Show a lot more users per each page (change the per_page value)
Typically, your controller code will look like this:
@users = User.order(:name).page params[:page]
Just call the “paginate” helper
<%= paginate @users %>
This will render several “?page=N” pagination links surrounded by an HTML5 <nav> tag.
Specifing the “inner window” size (4 by default)
<%= paginate @users, :window => 3 %>
Specifing the “outer window” size (1 by default)
<%= paginate @users, :outer_window => 3 %>
outer window can be separetely specified by “left”, “right” (1 by default)
<%= paginate @users, :left => 0, :right => 2 %>
Ajax links (crazy simple, but works perfectly!)
<%= paginate @users, :remote => true %>
Customizing the pagination helper
Kaminari includes a handy template generator.
The default generator
% rails g kaminari:views default
Then edit the partials in your app's app/views/kaminari/ directory.
For Haml users
Haml templates generator is also available by adding “-e haml” option (this would actually be automatically invoked while the default template_engine is set to Haml).
% rails g kaminari:views default -e haml
Kaminari is shipped with template themes in addition to the “default” one, which will help you creating a nice looking paginator.
% rails g kaminari:views THEME
To see the full list of avaliable themes, just hit the generator without specifying THEME argument.
% rails g kaminari:views
Feel free to message me on Github (amatsuda) or Twitter (@a_matsuda) :)
Contributing to Kaminari
Fork, fix, then send me a pull request.
Copyright © 2011 Akira Matsuda. See LICENSE.txt for further details.