I've built a view (Drupal 6.x, Views 2.x). I'd like to be able to add a summary row at the end of this view — total up several columns and include the totals in the summary row.
How can I do this? Is there some Views data-altering hook I can implement, to change the constructed data (before it gets themed)?
(Note that I can't use views_calc
because some of the data in this view is coming from Views Relationships, which views_calc
doesn't support at the time of writing.)