Grokking Drupal : the feed aggregator

Submitted by Frederic Marand on Sat, 2005-09-17 16:12

UML class diagram thumbnail for Drupal aggregator 4.6.3The feed aggregator is a powerful feature in Drupal. Here is a UML model of how it stores its data:

As of Drupal 4.6.3 and HEAD today, aggregator.module uses a fairly simple and optimized set of five tables. This UML diagram shows how they are logically related together.

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2005-11-28 - Update : this page, as well as other in the Grokking Drupal series of my blog, is now available on The version on will probably be updated with time, whereas this one probably won't be.