![]() For example, field collections may have been used, but for Drupal 9 we would want to use the Paragraphs module. Migration plugins are small pieces of code that define the relationships between the existing Drupal 6 or Drupal 7 structures and the new Drupal 9 migrated structures. However, this may not be the case, and it's possible a better fit is available. Don't worry, this is on a copy of the website, not the live one! Create the Drupal 9 migration pluginsĭrupal out-the-box is quite good at migrating most of the content and entities if there are equivalent modules in Drupal 9. Are they all required? Anything that is not necessary is removed. The same is done with things like Views, etc. We also remove any modules and uninstall if they are no longer required - this is quite often the case as previous developers try and test modules. This ensures then when the migration plugins run, they are reading values from a database structure that is expected. ![]() The first action to take when migrating to Drupal 9 is to get a local copy of the current website up to date with Drupal core and all the contributed modules. Upgrade the Drupal 6 or Drupal 7 site and clean up So part of the migration strategy is to identify any better modules to manage the data, and ensure there is an upgrade and migration path to get the data into a more suitable format in Drupal 9. In Drupal 9 there are many modules to choose from, and probably there will be some things developed on the Drupal 6 or Drupal 7 site that are not following best practice. We look at all the fields used by these entities. This could be pages (nodes), users, taxonomy terms, commerce orders, etc. Existing Drupal entity analysisĮntities are the blocks of data that the website holds. Having upgraded and migrated many Drupal 7 sites to Drupal 9, we are going to be familiar with most of the gotchas.įrom a combination of the status report, and manual checking, a migration report is written detailing the plan for the Drupal upgrade. "Upgrade status" will check the current site and build a report stating which modules are available for Drupal 9, as well as listing any issues we need to be aware of. There is a very handy module that can help do a lot of this heavy lifting. Your custom modules and themes are checked so we can understand what they are for, and how they are responsible for behaviours on the Drupal website. We need to check what modules are being used and why they were chosen. The first step is to audit the existing website. Generally, our Drupal 9 migration service following this process: - Audit the existing site prior to the Drupal 9 migration HOWEVER, there are a lot of well maintained migration modules that can help make this process much quicker and easier than you may think, and it's probably not as big a job as it sounds. ![]() So this is a good thing, but in terms of migrating a Drupal 6 or Drupal 7 site to Drupal 9 it means essentially rebuilding the website. Building Drupal 9 sites and migrations is more stable, and gives us access to millions of lines of efficient and secure code from outside the Drupal world. This is what open-source is all about and represents a huge step in the right direction. And of course, we can take advantage of thousands more components from the Symfony world created by those developers. Drupal 9 is built on top of a stable, well used code base that invites participation from thousands of other developers outside of the Drupal world. Drupal 6 and Drupal 7 migration to Drupal 9ĭrupal 9 is a complete rewrite of the platform, bringing in all the advantages of the Symfony framework.
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