Last updated January 13, 2016. Created on August 22, 2008.
Edited by tenten71, dkhill, rootwork, myglobaldata_gil. Log in to edit this page.

Rules are reconfigurable micro-programs that can run at the click of a button or as a reaction upon any detected situation. Site builders and module developers can configure various actions and control sequences that will then be fired in simple or complex sequences.

Rules can react immediately or be scheduled to run in the future. Large operations and those that make sense to background can also be queued using the Rules Scheduler. Another existing approach is to use Views Bulk Operations' Queue API integrations.

The Rules project includes:

  • A rule-based, event-driven, action evaluation engine
  • Extensible data type support and data lists support
  • Wrappers for Drupal's hooks as actions, conditions, and events
  • A general configuration interface, the Rules Admin UI
  • An API for building forms by exposing user-configured/controlled rules

Configuring Rules through the UI

If the Rules UI module is enabled, you can configure the rules at:
(Drupal 7) Admin > Configuration > Workflow > Rules (/admin/config/workflow/rules).
(Drupal 6) Admin > Rules (/admin/rules).
If you've just installed Rules UI and don't see it there, be sure to clear your caches.

Looking for support? Visit the Drupal.org forums, or join #drupal-support in IRC.

Comments

NPC’s picture

Is the full list of rules and actions available out of the box available somewhere?

kriskhaira’s picture

This page should mention that there are examples a few pages away under Share your rules! (Import/Export) as well as examples of actions in Writing actions. That should be sufficient because those links contain many examples.