adjust signature prefill

app/controllers/submit_form_controller.rb

@@ -8,7 +8,6 @@ class SubmitFormController < ApplicationController
   skip_authorization_check
 
   CONFIG_KEYS = [].freeze
-  PRELOAD_ALL_PAGES_AMOUNT = 200
 
   def show
     @submitter = Submitter.find_by!(slug: params[:slug])
@@ -16,20 +15,7 @@ class SubmitFormController < ApplicationController
     return redirect_to submit_form_completed_path(@submitter.slug) if @submitter.completed_at?
     return render :archived if @submitter.submission.template.archived_at? || @submitter.submission.archived_at?
 
-    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
+    Submitters.preload_with_pages(@submitter)
 
     Submitters::MaybeUpdateDefaultValues.call(@submitter, current_user)
 
@@ -40,7 +26,15 @@ class SubmitFormController < ApplicationController
 
     return unless @form_configs[:prefill_signature]
 
-    @signature_attachment =
+    if (user_signature = UserConfigs.load_signature(current_user))
+      @signature_attachment = ActiveStorage::Attachment.find_or_create_by!(
+        blob_id: user_signature.blob_id,
+        name: 'attachments',
+        record: @submitter
+      )
+    end
+
+    @signature_attachment ||=
       Submitters::MaybeAssignDefaultBrowserSignature.call(@submitter, params, cookies, @attachments_index.values)
 
     @attachments_index[@signature_attachment.uuid] = @signature_attachment if @signature_attachment