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class Article < ActiveRecord::Base
  # ...
  
  define_index do
    #los indexes tienen que ser datos del tipo string
    indexes title, :sortable => true
    indexes entry
    indexes author.name, :as => :author, :sortable => true
    
    #los atributos pueden ser integer, boolean o datetime

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WillPaginate::ViewHelpers.pagination_options[:renderer] = 'PaginationListLinkRenderer'

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<%= will_paginate(@users, :renderer => PaginationListLinkRenderer) %>

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<%= will_paginate(@users, :renderer => PaginationListLinkRenderer) %>

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class VbsLinkRenderer < WillPaginate::LinkRenderer

  def to_html

    links = @options[:page_links] ? windowed_links : []

    links.unshift(page_link_or_span(@collection.previous_page, 'prev', @options[:previous_label]))
    links.push(page_link_or_span(@collection.next_page, 'next', @options[:next_label]))

    html = links.join(@options[:separator])

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<ul class="pagination">
  <li class="previous"><a href="/users?page=1">« Previous</a></li>
  <li><a href="/users?page=1">1</a></li>
  <li class="current">2</li>
  <li><a href="/users?page=3">3</a></li>
  <li class="next"><a href="/users?page=3">Next »</a></li>
</ul>

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<ul class="pagination">
  <li class="previous"><a href="/users?page=1">« Previous</a></li>
  <li><a href="/users?page=1">1</a></li>
  <li class="current">2</li>
  <li><a href="/users?page=3">3</a></li>
  <li class="next"><a href="/users?page=3">Next »</a></li>
</ul>

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.pagination {
padding: 3px;
margin: 3px;
}
.pagination a {
padding: 2px 5px 2px 5px;
margin: 2px;
border: 1px solid #aaaadd;
text-decoration: none;
color: #666;

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<div class="pagination"><span class="disabled prev_page">« Previous</span> <span class="current">1</span> <a href="/users?page=2" rel="next">2</a> <a href="/users?page=3">3</a> <a href="/users?page=2" class="next_page" rel="next">Next »</a></div>

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# En el controlador
@users = User.paginate(:page => params[:page])

# En la vista
<%= will_paginate(@users) %>