Book Image

Drupal 7 First Look

Book Image

Drupal 7 First Look

Overview of this book

Drupal 7 contains features for which site administrators have been clamoring for years, including support for fields, an improved administration interface, better database support, improved theming, and more. You could of course make a laborious search on sites, blogs, and many online tutorials that would promise to update you about every new feature, but there's an even better way to know all about Drupal 7's new features: Drupal 7 First Look is the first and only book that covers all of the fantastic new features in Drupal 7 in depth and covers the process of upgrading your Drupal 6 site to Drupal 7. If you've used Drupal 6 and want to use Drupal 7, you need this book.Drupal 7 First Look takes an in-depth look into all of the major new features in Drupal 7 so you can quickly take full advantage of Drupal 7. It also assists you in upgrading your site to Drupal 7. Some of the new features in Drupal 7 include: Fields API, based on Drupal 6 CCK, which allows you to easily build your own content types Improved user interface for administering your website Built-in support for working with images and files Improved security for the site and users of the site Completely rewritten database layer DBTNG to make working with the database easier and more secure. Improved API for custom module development and user interface theming
Table of Contents (13 chapters)
Drupal 7 First Look
Credits
About the Author
About the Reviewer
Preface
Index

File handling system


Let's move on now to the file handling system. As we have seen in previous chapters, the user interface for the file handling system was changed significantly. For example, a Drupal 7 site can now use both private and public files within the same site. We can also now add files to our site using file fields in addition to the file uploads that were provided in previous versions of Drupal. To enable these changes, the APIs related to file handling were significantly revised.

New file hooks

Let's start by looking at the new hooks that your modules may want to implement in Drupal 7.

hook_file_copy

hook_file_copy($file, $source)

This hook is called after a file has been copied in the system. You can use this hook to update related information or add new information to the database.

hook_file_delete

hook_file_delete($file)

This hook is called when a file has been deleted. You can use this to clean up associated information in the database.

hook_file_insert

hook_file_insert(&$file...