module WillPaginate::ViewHelpers

def page_entries_info(collection, options = {})

The default output contains HTML. Use ":html => false" for plain text.

#-> Displaying posts 6 - 12 of 26 in total
<%= page_entries_info @posts %>

Renders a message containing number of displayed vs. total entries. 
def page_entries_info(collection, options = {})
  model = options[:model]
  model = collection.first.class unless model or collection.empty?
  model ||= 'entry'
  model_key = if model.respond_to? :model_name
                model.model_name.i18n_key  # ActiveModel::Naming
              else
                model.to_s.underscore
              end
  if options.fetch(:html, true)
    b, eb = '<b>', '</b>'
    sp = '&nbsp;'
    html_key = '_html'
  else
    b = eb = html_key = ''
    sp = ' '
  end
  model_count = collection.total_pages > 1 ? 5 : collection.size
  defaults = ["models.#{model_key}"]
  defaults << Proc.new { |_, opts|
    if model.respond_to? :model_name
      model.model_name.human(:count => opts[:count])
    else
      name = model_key.to_s.tr('_', ' ')
      raise "can't pluralize model name: #{model.inspect}" unless name.respond_to? :pluralize
      opts[:count] == 1 ? name : name.pluralize
    end
  }
  model_name = will_paginate_translate defaults, :count => model_count
  if collection.total_pages < 2
    i18n_key = :"page_entries_info.single_page#{html_key}"
    keys = [:"#{model_key}.#{i18n_key}", i18n_key]
    will_paginate_translate keys, :count => collection.total_entries, :model => model_name do |_, opts|
      case opts[:count]
      when 0; "No #{opts[:model]} found"
      when 1; "Displaying #{b}1#{eb} #{opts[:model]}"
      else    "Displaying #{b}all#{sp}#{opts[:count]}#{eb} #{opts[:model]}"
      end
    end
  else
    i18n_key = :"page_entries_info.multi_page#{html_key}"
    keys = [:"#{model_key}.#{i18n_key}", i18n_key]
    params = {
      :model => model_name, :count => collection.total_entries,
      :from => collection.offset + 1, :to => collection.offset + collection.length
    }
    will_paginate_translate keys, params do |_, opts|
      %{Displaying %s #{b}%d#{sp}-#{sp}%d#{eb} of #{b}%d#{eb} in total} %
        [ opts[:model], opts[:from], opts[:to], opts[:count] ]
    end
  end
end

def will_paginate(collection, options = {})




will result in:

<%= will_paginate @posts, :style => 'color:blue' %>

element for pagination links (the DIV). For example:
All options not recognized by will_paginate will become HTML attributes on the container

false only when you are rendering your own pagination markup (default: true)
* :container -- toggles rendering of the DIV container for pagination links, set to
* :page_links -- when false, only previous/next links are rendered (default: true)
WillPaginate::ActionView::LinkRenderer)
* :renderer -- class name, class or instance of a link renderer (default in Rails:
(eg. :controller => "foo", :action => nil)
* :params -- additional parameters when generating pagination links
* :param_name -- parameter name for page number in URLs (default: :page)
* :link_separator -- string separator for page HTML elements (default: single space)
* :outer_window -- how many links are around the first and the last page (default: 1)
* :inner_window -- how many links are shown around the current page (default: 4)
* :next_label -- default: "Next »"
* :previous_label -- default: "« Previous"
* :class -- CSS class name for the generated DIV (default: "pagination")
==== Options

In case there is no more than one page in total, nil is returned.
Returns HTML representing page links for a WillPaginate::Collection-like object. 
def will_paginate(collection, options = {})
  # early exit if there is nothing to render
  return nil unless collection.total_pages > 1
  options = WillPaginate::ViewHelpers.pagination_options.merge(options)
  options[:previous_label] ||= will_paginate_translate(:previous_label) { '&#8592; Previous' }
  options[:next_label]     ||= will_paginate_translate(:next_label) { 'Next &#8594;' }
  # get the renderer instance
  renderer = case options[:renderer]
  when nil
    raise ArgumentError, ":renderer not specified"
  when String
    klass = if options[:renderer].respond_to? :constantize then options[:renderer].constantize
      else Object.const_get(options[:renderer]) # poor man's constantize
      end
    klass.new
  when Class then options[:renderer].new
  else options[:renderer]
  end
  # render HTML for pagination
  renderer.prepare collection, options, self
  output = renderer.to_html
  output = output.html_safe if output.respond_to?(:html_safe)
  output
end