Upgrading when using deprecated dependencies
LA Drupal - Nov 2021
Why
Something new comes along
Maintainer goes away
Mambo -> Joomla
Drupal 6 -> 7 -> 8
Drush -> Drupal Console -> Drush
Ubercart -> Commerce
Relation -> Field Collections -> Paragraphs
Goal
One D8 site
Uses lightning distribution
Can gripe about this one another time
Need to move to D9
FC to Paragraphs is primary blocker
No new maintainer
Options
Update code to be D9 compatible
Become maintainer?
Move on
Figure out migration path
Migrate module?
SQL?
Drush command?
Combination of the above??
Write a D9 compatible version of the module
Go through the code
Try and port it over
Could put it up as a patch so others can use it
The code might also be very complex so it could take a lot of time
Write a migration
Migrate module is very nice
Rollbacks, errors, logging all managed
Also a bit complex (yml + query + processing)
FC to Paragraphs migration module exists in beta
https://www.drupal.org/project/field_collection_to_paragraphs
Only works with node and taxonomy terms
Demo
Initial thoughts
It does a lot
Creates fields, settings, view modes, etc
Even if it won't bring over content due to field existing for different entity
It works decently well
Initial migration has to be via the migrate gui
Just craps out otherwise
Works with drush after initial setup and migration
Write a drush script
When in a bind
Write all the niceties that migrate provides
Or maybe you don't need it if its one time
Drush is relatively simple
Demo
Thanks!