Ruby On Rails Paginate

A guide to paginating with Ruby on Rails, with an example of adding page navigation to a blog.

Ruby On Rails Paginate

Pagination in Rails is a great way to allow a user to navigate through a website and quickly access the data they are looking for. By using pagination, a user can quickly and easily move through a long list of items. Pagination also allows the user to view more items at once, as opposed to scrolling through a long page of items.

In order to implement pagination in Ruby on Rails, we first need to include the ‘will_paginate’ gem in our Gemfile:

gem 'will_paginate', '~> 3.1.6'

Once the gem is added, we can add the following code in our controller to enable pagination:

@users = User.paginate(:page => params[:page], :per_page => 10)

This code will fetch 10 users from the database and show them in a paginated format with 10 users per page. The code also passes the ‘page’ parameter to the controller, which tells the controller which page number of results it should return.

In our view, we can then iterate over the @users variable and display the results:

<% @users.each do |user| %>
  <%= link_to user.name, user %>
<% end %>

<%= will_paginate @users %>

The ‘will_paginate’ method will add the necessary HTML code for the pagination links to be displayed in the page. The pagination links will be displayed at the bottom of the page, and a user can simply click on the link of the page they want to view. The ‘will_paginate’ gem also allows us to customize the pagination links, such as the number of links displayed, the labels and styling of the links, etc.

By following these steps, you can easily add pagination in your Ruby on Rails application. Pagination is a great way to improve the user experience of your website and make it easier to navigate through large amounts of data.