I have made a migration module to import the full content from a legacy Drupal 6 site to my new Drupal 7 site, using the migrate d2d module. Everything works fine, but I have just discovered that there are many custom meta tags added manually for both nodes and taxonomy in the legacy site (using the Metatags module). The taxonomy meta tags I can deal with manually, but I really would need to figure out how to add the mapping for metatags in my node migration classes. Do I add code in my general migration class in node.inc
(that extends DrupalNode6Migration)?
Do I use prepareRow() to fetch info from the database and add this to a mapping with a default value in the new site? As far as I can see there are no fields in the legacy site that holds the metatags (I need title, keywords and description).
If anyone knows how to do this, please help.