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copied!<p>Ahh I finally did it !</p> <p>Thanks for your answer Sean but I was not looking for a better Gem, I was looking for a solution to my issue.</p> <p>For some reason I couldn't use the render_to_string method in my Model... So I created my export_to_pdf method on my model:</p> <pre><code> def export_to_pdf bill = self project = self.project path = "facture_#{self.project.id}_#{self.bill_number}_#{Date.today.strftime('%Y_%m_%d')}.pdf" Plus::BillingItemsController.new._to_pdf(bill.id) if File.exists?(path) return path else return nil end end </code></pre> <p>As you can see I call my Controller in my Model. Here is my _to_pdf method:</p> <pre><code> def _to_pdf(bill_id) @bill = Plus::ProjectBill.find_by_id(bill_id) @project = @bill.project path = "#{RAILS_ROOT}/public/xls/facture_#{@project.id}_#{@bill.bill_number}_#{Date.today.strftime('%Y_%m_%d')}.pdf" av = ActionView::Base.new(Rails::Configuration.new.view_path) av.class_eval do include ApplicationHelper include ActionController::UrlWriter default_url_options[:host] = 'mysite.com' end av.extend ApplicationController.master_helper_module html = av.render(:partial => "/plus/billing_items/bill_for_pdf.haml", :locals => {:bill => @bill}) data = to_pdf(html, false, {:header => '', :headfootsize => 0, :outfile => path}) end </code></pre> <p>My to_pdf function is just doing the PDF::HTMLDoc.new and the set_option of links, logoimage , etc. and return pdf.generate</p> <p>I hope this can help someone someday somewhere !</p>

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