Securing Rails ApplicationsThis guide describes common security problems in web applications and how to avoid them with Rails.After reading this guide, you will know: How to use the built-in authentication generator. All countermeasures that are highlighted. The concept of sessions in Rails, what to put in there and popular attack methods. How just visiting a site can be a security problem (with CSRF). What you have to pay attention to when working with files or providing an administration in...| Ruby on Rails Guides
Active Storage OverviewThis guide covers how to attach files to your Active Record models.After reading this guide, you will know: How to attach one or many files to a record. How to delete an attached file. How to link to an attached file. How to use variants to transform images. How to generate an image representation of a non-image file, such as a PDF or a video. How to send file uploads directly from browsers to a storage service, bypassing your application servers. How to clean up files ...| Ruby on Rails Guides
Active Record AssociationsThis guide covers the association features of Active Record.After reading this guide, you will know how to: Declare associations between Active Record models. Understand the various types of Active Record associations. Use the methods added to your models by creating associations.| Ruby on Rails Guides