Migrate initiative signatures to HexaPDF (decidim#13691)

decidim-core/lib/decidim/exporters/pdf.rb

@@ -10,6 +10,9 @@ module Exporters
     # the desired template, layout and orientation.
     #
     class PDF < Exporter
+      include Decidim::TranslatableAttributes
+      include Decidim::SanitizeHelper
+
       # Public: Exports a PDF version of the collection by rendering
       # the template into html and then converting it to PDF.
       #
@@ -43,6 +46,10 @@ def composer
         @composer ||= ::HexaPDF::Composer.new
       end
 
+      def page_size = :A4
+
+      def page_orientation = :portrait
+
       def add_data!
         raise NotImplementedError
       end

decidim-forms/lib/decidim/exporters/form_pdf.rb

@@ -7,9 +7,6 @@ module Exporters
     #
     class FormPDF < PDF
       # i18n-tasks-use t('decidim.admin.exports.formats.FormPDF')
-
-      include Decidim::TranslatableAttributes
-      include Decidim::SanitizeHelper
       include ActionView::Helpers::NumberHelper
       include Decidim::Forms::Admin::QuestionnaireAnswersHelper
 

decidim-initiatives/app/controllers/decidim/initiatives/admin/initiatives_controller.rb

@@ -172,19 +172,14 @@ def export_pdf_signatures
 
           @votes = current_initiative.votes
 
-          output = render_to_string(
-            pdf: "votes_#{current_initiative.id}",
-            layout: "decidim/admin/initiatives_votes",
-            template: "decidim/initiatives/admin/initiatives/export_pdf_signatures",
-            format: [:pdf]
-          )
-          output = pdf_signature_service.new(pdf: output).signed_pdf if pdf_signature_service
+          serializer = Decidim::Forms::UserAnswersSerializer
+          output = Decidim::Exporters::InitiativeVotesPDF.new(@votes, current_initiative, serializer).export
+          output = pdf_signature_service.new(pdf: output.read).signed_pdf if pdf_signature_service
 
           respond_to do |format|
             format.pdf do
               send_data(output, filename: "votes_#{current_initiative.id}.pdf", type: "application/pdf")
             end
-            format.html
           end
         end
 

decidim-initiatives/app/services/decidim/initiatives/pdf_signature_example.rb

@@ -50,8 +50,6 @@ def signed_pdf
       private
 
       def signature_widget(doc)
-        doc.pages.add.document
-
         form = doc.acro_form(create: true)
         form.signature_flag(:append_only)
 

decidim-initiatives/config/assets.rb

@@ -5,6 +5,5 @@
 Decidim::Webpacker.register_path("#{base_path}/app/packs")
 Decidim::Webpacker.register_entrypoints(
   decidim_initiatives: "#{base_path}/app/packs/entrypoints/decidim_initiatives.js",
-  decidim_initiatives_admin: "#{base_path}/app/packs/entrypoints/decidim_initiatives_admin.js",
-  decidim_initiatives_initiatives_votes: "#{base_path}/app/packs/entrypoints/decidim_initiatives_initiatives_votes.js"
+  decidim_initiatives_admin: "#{base_path}/app/packs/entrypoints/decidim_initiatives_admin.js"
 )