Attr writter added

app/controllers/case_logs_controller.rb

@@ -26,7 +26,7 @@ class CaseLogsController < ApplicationController
     previous_page = params[:case_log][:previous_page]
     questions_for_page = form.questions_for_page(previous_page).keys
     answers_for_page = page_params(questions_for_page).select { |k, _v| questions_for_page.include?(k) }
-    @case_log.previous_page(previous_page)
+    @case_log.previous_page = previous_page
     if @case_log.update(answers_for_page)
       redirect_path = form.next_page_redirect_path(previous_page)
       redirect_to(send(redirect_path, @case_log))

app/models/case_log.rb

@@ -28,13 +28,9 @@ end
 
 class CaseLog < ApplicationRecord 
   validate :instance_validations
-  @previous_page
+  attr_writer :previous_page
   enum status: { "in progress" => 0, "submitted" => 1 }
 
-  def previous_page(value)
-    @previous_page = value
-  end
-
   def instance_validations
     validates_with CaseLogValidator, ({ previous_page: @previous_page } || {})
   end