In a previous blog, we discussed Function1’s latest Drupal project: migrating a Jive system running on PostgreSQL database to Drupal.  The target Drupal site was using the Organic Groups module to organize content (the usual node types: blog, story, page, discussion, etc.) in Spaces (the Organic Group lingo for a “Group”). In migrating content to Drupal we used the migrate module. Adding space/group memberships was a...