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Xray skeleton with a power drill.

X-ray module gives a look at the skeletal structure of a site to help developers and site builders see how things work.

X-ray Features

  • A technical summary is added to the help above the main administrative sections. For example, blocks, content types, and menus are summarized on Structure; themes on Appearance; etc.
  • A table of permission titles matched to their permission machine names.
  • A table of most* hooks which Drupal invokes (and when they are invoked) and that are available to be implemented.
  • The function and arguments producing each page you visit, displayed on that page.
  • The form ID of every form you see, displayed on the form.

The development of this module is described in 94-page detail in the Module Development chapter of the Definitive Guide to Drupal 7.

Planned features (in the short term)

  • To node pages, add what content type the node is.
  • A report with a technical overview of the site content structure, with relationships between content types. (Ideally, this will be graphical.)
  • A report with explanations of what in Drupal produces each page in the menu structure.

Overall goals

  • Provide visual aids and information to help site builders understand their own sites or ones they've taken over (perhaps as integration with the Site Documentation module).
  • Provide visual aids and information useful for module developers (perhaps move these parts to Devel module).

Other modules

See also

X-ray Background

This module is based on a suggestion submitted to the Contributed Module Ideas group by Zoë Neill-St. Clair. It was built as an example module for the Definitive Guide to Drupal 7.

* Hooks are based on naming convention, and can only all be identified by very careful grepping of the code, which this module does not do; instead, all hooks which use module_invoke() are identified.

Project Information