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  • Book Overview & Buying Drupal 7 First Look
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Drupal 7 First Look

Drupal 7 First Look

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Drupal 7 First Look

Drupal 7 First Look

4.5 (4)

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)
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Drupal 7 First Look
Credits
About the Author
About the Reviewer
Preface
1
Index

Cron changes


The cron system in Drupal has been modified to accommodate tasks that need to be run regularly, but that may not complete within a normal page load. This is accomplished using the hook_cron_queue_info hook. Cron also now ensures that cron is not canceled if the PHP time limit is reached while cron is executing.

hook_cron_queue_info

hook_cron_queue_info()

This hook allows you to define processes that need to be executed by Drupal in the background rather than being executed immediately during the cron run. To define these processes, you will create and return an associative array with the following values:

  • worker callback—the callback that should be executed when the queue is run

  • time—the maximum amount of time that should be spent executing the callback per cron run

The callback will receive an item definition that includes a unique item_id, the time the item was created, an expire key indicating the time when the item expires, and optionally, user data that can be added to the...

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Drupal 7 First Look
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