This template implements the final phase of internal processing for template {{Allbooks category}}. On entry here, we already know the subject page exists and is correctly formatted for extraction of its parameters.



There are three parameters, assumed to be specified (even if blank).

  • parent — the name of a parent subject, or blank.
  • parent2 — the name of a parent subject, or blank.
  • subject — the name of the subject associated with this allbooks category; just the name of this category without the "/all books" suffix.

This template attempts to add this allbooks category to the allbooks categories associated with the parent subjects, via {{Allbooks category/parent}}, and provides a notice that this allbooks category should be populated automatically.