adjust signature prefill

lib/submitters.rb

@@ -2,6 +2,7 @@
 
 module Submitters
   TRUE_VALUES = ['1', 'true', true].freeze
+  PRELOAD_ALL_PAGES_AMOUNT = 200
 
   module_function
 
@@ -29,6 +30,25 @@ module Submitters
     end
   end
 
+  def preload_with_pages(submitter)
+    ActiveRecord::Associations::Preloader.new(
+      records: [submitter],
+      associations: [submission: [:template, { template_schema_documents: :blob }]]
+    ).call
+
+    total_pages =
+      submitter.submission.template_schema_documents.sum { |e| e.metadata.dig('pdf', 'number_of_pages').to_i }
+
+    if total_pages < PRELOAD_ALL_PAGES_AMOUNT
+      ActiveRecord::Associations::Preloader.new(
+        records: submitter.submission.template_schema_documents,
+        associations: [:blob, { preview_images_attachments: :blob }]
+      ).call
+    end
+
+    submitter
+  end
+
   def create_attachment!(submitter, params)
     blob =
       if (file = params[:file])