Drupal: Views Aggregation

Johan Falk erklärt das Aggregation Feature in Views.

If you don’t want to watch screencasts, here’s short-short version (spoiler alert!):

  • Aggregation makes Views not return items from the database, but groups of items.
  • You find the aggregation setting in the advanced section in Views.
  • Add any fields you want to use for grouping, in aggregation mode “group similar results”.
  • Add any fields you want to do calculations on – sums, averages, counts, etc.
  • Make sure you don’t, for example, have sorting on publish date – it will make your aggregation more or less meaningless.