Migrate attestation files to active_storage

app/views/admin/attestation_templates/edit.html.haml

@@ -17,11 +17,11 @@
       celle-ci est également disponible au téléchargement depuis l’espace personnel de l’usager.
 
     .image-upload
-      - if @attestation_template.logo.present?
-        = image_tag @attestation_template.logo.url, class: 'thumbnail'
+      - if @attestation_template.logo?
+        = image_tag @attestation_template.logo_url, class: 'thumbnail'
       .form-group
         = f.label :logo, "Logo de l'attestation"
-        - if @attestation_template.logo.present?
+        - if @attestation_template.logo?
           = link_to 'Supprimer le logo', admin_procedure_attestation_template_logo_path(@procedure), method: :delete
         = f.file_field :logo, accept: 'image/png, image/jpg, image/jpeg'
         %p.help-block
@@ -54,11 +54,11 @@
                 = tag[:description]
 
     .image-upload
-      - if @attestation_template.signature.present?
-        = image_tag @attestation_template.signature.url, class: 'thumbnail'
+      - if @attestation_template.signature?
+        = image_tag @attestation_template.signature_url, class: 'thumbnail'
       .form-group
         = f.label :signature, "Tampon de l'attestation"
-        - if @attestation_template.signature.present?
+        - if @attestation_template.signature?
           = link_to 'Supprimer le tampon', admin_procedure_attestation_template_signature_path(@procedure), method: :delete
         = f.file_field :signature, accept: 'image/png, image/jpg, image/jpeg'
         %p.help-block

app/views/admin/attestation_templates/show.pdf.prawn

@@ -30,7 +30,12 @@ prawn_document(margin: [top_margin, right_margin, bottom_margin, left_margin], p
 
   pdf.bounding_box([0, pdf.cursor], width: body_width, height: body_height) do
     if @logo.present?
-      pdf.image StringIO.new(@logo.read), fit: [max_logo_width , max_logo_height], position: :center
+      logo_file = if @logo.is_a?(ActiveStorage::Attached::One)
+        @logo.download
+      else
+        @logo.read
+      end
+      pdf.image StringIO.new(logo_file), fit: [max_logo_width , max_logo_height], position: :center
     end
 
     pdf.fill_color grey
@@ -44,7 +49,12 @@ prawn_document(margin: [top_margin, right_margin, bottom_margin, left_margin], p
 
     if @signature.present?
       pdf.pad_top(40) do
-        pdf.image StringIO.new(@signature.read), fit: [max_signature_size , max_signature_size], position: :right
+        signature_file = if @signature.is_a?(ActiveStorage::Attached::One)
+          @signature.download
+        else
+          @signature.read
+        end
+        pdf.image StringIO.new(signature_file), fit: [max_signature_size , max_signature_size], position: :right
       end
     end
   end