![]() However, the way you implement them may not be the same as some refactoring might be required to get feature parity when you migrate to Drupal 8. Some of the things you previously needed to do via contributed modules in Drupal 7 are now included in Drupal 8 core. The Drupal 7 to Drupal 8 upgrade involves some pretty significant changes. In the meantime, you can do the heavy lift of the Drupal 7 to Drupal 8 migration now, and the simpler Drupal 8 to Drupal 9 upgrade later, when everything you need is ready. But, there could be some outliers that will take more time. The Drupal 8 to Drupal 9 upgrade path for many modules and themes should be relatively trivial, so many of them should be ready soon. You might find that the essential modules or themes you need are ready for Drupal 8 but not yet available for Drupal 9. Migrating to Drupal 8 is still a good option for Drupal 7 sites, even though Drupal 9 is now out. Sites that jumped on the Drupal 8 bandwagon before Drupal 9.0 was released could benefit from the simple upgrade path from Drupal 8 to Drupal 9.0 instead of another big migration project. The big selling point in Drupal 9's evolution is that updating from a late version of Drupal 8 to Drupal 9.0 is more like an incremental upgrade than the massive replatforming effort that the older Drupal migrations used to entail. What does the major lift look like to jump ahead two Drupal versions? How is this different than if you'd upgraded to Drupal 8 sometime in the last few years? And how long will it be before you have to do it again? Upgrading via Drupal 8īefore the release of Drupal 9, the best path for Drupal 7 sites to upgrade to Drupal 9 was to upgrade to Drupal 8. If you're one of the 70% of Drupal sites that are still on Drupal 7 at the time of this writing, you may be wondering what the upgrade path looks like to go from Drupal 7 to Drupal 9. Make the adaptations for your new content model, implement hooks, process plugins. Pick the needed templates and copy them into the config/install directory of your custom module. We didn't copied the config files into the install directory to allow a selection of the needed templates. We will then export the configuration in a /tmp directory and copy it into our custom module.ĭrush config:export -destination=/tmp/migrate cp /tmp/migrate/migrate_plus.migration.* /tmp/migrate/migrate_plus.migration_group.migrate_*.yml /web/modules/custom/my_migration/tmp Select the migration templates ![]() Migrate Upgrade Install composer require drupal/migrate_upgradeĭrush en migrate_upgrade Extract the configurationĭrush migrate:upgrade -legacy-db-key drupal7 -legacy-root sites/default/files -configure-only In this case, configuration templates might be copied later on. If they have a migration path, they will be included while exporting the configuration with Migrate Upgrade. Install in Drupal 8 all the contributed modules that should be included in the migration. ![]() 'namespace' => 'Drupal\\Core\\Database\\Driver\\mysql', The Drupal 7 database connection details. In the settings file, add a reference to the Drupal 7 database. Prepare the Drupal 8 environment Reference the Drupal 7 database While migration templates can be generated for configuration and content, we will mainly focus on the content templates here, then tweak them for the new content model. Most migration templates can be generated by the Migrate Upgrade module. In most cases the content model will change in Drupal 8 so we will need a partial migration, assuming that the site building is done manually on the Drupal 8 site. We will assume here a content migration without the configuration and see how to generate most of our migration templates.
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