Form API Internal Workflow Illustration

Last updated on
14 October 2016

This workflow actually includes some of the nodeapi hooks as well as FAPI workflow to help illustrate the places where form elements can be manipulated.

Drupal 7

Complete FAPI workflow for Drupal 7.x. It's grouped by phases. Rebuild form and AJAX calls flows reference those phases. Click to enlarge.
Drupal 7.x FAPI workflow

Drupal 6 and 5

FAPI workflow