1. Sending and receiving files

This chapter examines how to handle file uploads to Rails and file downloads to a user.

Sections in this chapter:

• Getting a file to Rails – Howto build the right form to upload a file to Rails.
• Saving an uploaded file to the filesystem
  • The simplest thing that could possibly work – a barebones example of saving an uploaded file.
  • Saving the filename and content-type – covers reading the content-type and getting a clean filename.
  • Conditional file save – saving the file only when the record is valid.