allow to delegate

app/controllers/submit_form_decline_controller.rb

@@ -4,31 +4,38 @@ class SubmitFormDeclineController < ApplicationController
   skip_before_action :authenticate_user!
   skip_authorization_check
 
-  def create
-    submitter = Submitter.find_by!(slug: params[:submit_form_slug])
+  before_action :load_submitter
 
-    return redirect_to submit_form_path(submitter.slug) if submitter.declined_at? ||
-                                                           submitter.completed_at? ||
-                                                           submitter.submission.archived_at? ||
-                                                           submitter.submission.expired? ||
-                                                           submitter.submission.template&.archived_at? ||
-                                                           !Submitters::AuthorizedForForm.call(submitter, current_user,
-                                                                                               request)
+  def create
+    return redirect_to submit_form_path(@submitter.slug) if @submitter.declined_at? ||
+                                                            @submitter.completed_at? ||
+                                                            @submitter.submission.archived_at? ||
+                                                            @submitter.submission.expired? ||
+                                                            @submitter.submission.template&.archived_at? ||
+                                                            !Submitters::AuthorizedForForm.call(@submitter,
+                                                                                                current_user,
+                                                                                                request)
 
     ApplicationRecord.transaction do
-      submitter.update!(declined_at: Time.current)
+      @submitter.update!(declined_at: Time.current)
 
-      SubmissionEvents.create_with_tracking_data(submitter, 'decline_form', request, { reason: params[:reason] })
+      SubmissionEvents.create_with_tracking_data(@submitter, 'decline_form', request, { reason: params[:reason] })
     end
 
-    user = submitter.submission.created_by_user || submitter.template.author
+    user = @submitter.submission.created_by_user || @submitter.template.author
 
     if user.user_configs.find_by(key: UserConfig::RECEIVE_DECLINED_EMAIL)&.value != false
-      SubmitterMailer.declined_email(submitter, user).deliver_later!
+      SubmitterMailer.declined_email(@submitter, user).deliver_later!
     end
 
-    WebhookUrls.enqueue_events(submitter, 'form.declined')
+    WebhookUrls.enqueue_events(@submitter, 'form.declined')
 
-    redirect_to submit_form_path(submitter.slug)
+    redirect_to submit_form_path(@submitter.slug)
+  end
+
+  private
+
+  def load_submitter
+    @submitter = Submitter.find_by!(slug: params[:submit_form_slug])
   end
 end