A demo module created by Mauricio Dinarte (@dinarcon) to explain migrations concepts in Drupal 8/9.

You can read the series online at https://understanddrupal.com/31-days-of-migrations or buy it as an eBook at https://udrupal.com/31-days-of-migrations-book There is also a companion video course that goes in depth on many of the topics. It also covers migrating media entities, multi-value and nested paragraphs, URL aliases and metatags, custom process plugins, HTML parsing, updates to migrated data, API credentials handling, recommendations to debug migrations, and more. You can purchase the video course at https://understanddrupal.com/migrations

1. Drupal migrations: Understanding the ETL process
2. Writing your first Drupal migration
3. Using process plugins for data transformation in Drupal migrations
4. Migrating data into Drupal subfields
5. Using constants and pseudofields as data placeholders in the Drupal migration process pipeline
6. Tips for writing Drupal migrations and understanding their workflow
7. Migrating files and images into Drupal
8. Introduction to migration dependencies in Drupal
9. Migrating taxonomy terms and multivalue fields into Drupal
10. Migrating users into Drupal - Part 1
11. Migrating users into Drupal - Part 2
12. Migrating dates into Drupal
13. Migrating addresses into Drupal
14. Introduction to paragraphs migrations in Drupal
15. Migrating CSV files into Drupal
16. Migrating JSON files into Drupal
17. Migrating XML files into Drupal
18. Adding HTTP Request Headers and Authentication to remote JSON and XML in Drupal migrations
19. Migrating Google Sheets into Drupal
20. Migrating Microsoft Excel and LibreOffice Calc files into Drupal
21. Defining Drupal migrations as configuration entities with the Migrate Plus module
22. Workflows and benefits of managing Drupal migrations as configuration entities
23. Using migration groups to share configuration among Drupal migrations
24. What is the difference between migration tags and migration groups in Drupal?
25. Executing Drupal migrations from the user interface with Migrate Tools
26. Understanding the entity_lookup and entity_generate process plugins from Migrate Tools
27. How to debug Drupal migrations? - Part 1
28. How to debug Drupal migrations? - Part 2
29. How to configure XDebug, PHPStorm, and DrupalVM to debug Drupal migrations via Drush commands and the browser?
30. List of migration related Drupal modules
31. Introduction to Drupal 8 upgrades

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