Even though migration has come a long way since D7, there are still numerous opportunities for headaches.
This session is a case study of three issues I faced and how I resolved them:
- Needing a video field type widget, prior to the release of Media, that could be added to any content type on any site.
- Migrating D7 Location field content to D8 address fields
- Populating the value portion of a body field from its D7 counterpart, but the summary portion from a completely separate field
The solutions make use of a field type widget, a migration plugin, and a hooked migration.
Code samples used in the presentation can be found at: https://github.com/jayengreen/migration_migraine