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Next And Previous Links In Rails
Posted by Weston Ganger
Sometime you want to add Next or Previous links to your blog posts or whatever model. Its really easy, just add a couple of instance methods to your model
class Post < ActiveRecord::Base def next Post.where("id > ?", id).limit(1).first end def prev Post.where("id < ?", id).limit(1).first end end
Then just call it like so:
<%= link_to "Next Post", @post.next %> <%= link_to "Prev Post", @post.prev %>