migration

Migrating content into Drupal is an extremely useful skill for most Drupal developers. Often, the most difficult step in learning to do migrations is the first one - that of getting everything set up and running your first migration to ensure that everything is working as expected. Most Drupal migration-related blog posts and documentation that I've seen either completely ignore the setup process or gloss over it before diving into the details of writing migrations. I like to ensure, both here, and when working with participants in our Professional Module Development course , that we ensure a solid understanding of

Waaaaay back in 2013, I wrote a blog post about importing and mapping over 5,000 points of interest in 45 minutes using (mainly) the Feeds and Geofield modules. Before that, I had also done Drupal 6 demos of importing and displaying earthquake data. With the recent release of Drupal 9, I figured it was time for a modern take on the idea - this time using the Drupal migration system as well as (still!) Geofield. This time, for the source data, I found a .csv file of 814 lighthouses in the United States that I downloaded from POI Factory (which

Note: This blog post is based on Drupal 8.0.x. While the concepts will remain the same in 8.1.x, the code examples will no longer be valid because migrations will become plugins in 8.1.x. See the updated blog post here. Even if you're only casually acquainted with Drupal 8, you probably know that the core upgrade path to Drupal 8 has been completely rewritten from the ground-up, using many of the concepts of the Migrate and Drupal-to-Drupal migration modules. Using the Migrate upgrade module, it is possible to migrate much of a Drupal 6 (or Drupal 7) site to Drupal 8