This 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 stored during testing. ...| Ruby on Rails Guides
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A web-app framework that includes everything needed to create database-backed web applications according to the Model-View-Controller (MVC) pattern.| Ruby on Rails