Rails - Jul 2008 - pagination

I want to do pagination in my project.For that i  installed
gem install mislav-will_paginate --source http://gems.github.com/ .
then i wrote require ''will_paginate'' in my enviornment.rb
file.
anything else required?
Then am i able to use it for my application?
how can i call it from my controller.I tried to call paginate..but
error is showing that undefined method paginate..
can anybody help me?



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> then i wrote require ''will_paginate'' in my enviornment.rb
file.
> anything else required?
that''s all to it. if you can start script/server and get no errors for
it, it should be ok so far.

to actually paginate something do this (example for model named
Product):

@products = Product.paginate(:all, :order => "products.created_at
DESC",
                                  :page =>
params[:page].to_i, :per_page => params[:per_page].to_i)

mind, that params[:page] & params[:per_page] should be initialized
properly
per_page should be 1 for first call and set to other pages for further
calls. but will_paginate will
handle most of it.

in the view you get the pagination links like that:
  <% unless @products.nil? or @products.empty?%>
      <%= will_paginate @products, :inner_window => 2 %>
  <% else %>
   found nothing
  <% end %>

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