When a migration is run the Migrate API creates a mapping table that keeps track of what source record was used to create which destination record. A record is automatically added for each successfully migrated row. This mapping table can be used later to:
- See if a row was previously imported
- Look up the ID of the entity created for the row
- Tracking if a source record has changed and needs to be re-imported.
In this tutorial we'll learn:
- What migration map tables are
- Why they exist, and what the Migrate API does with them
By the end of this tutorial you should be able to explain the use case for map tables and describe the data they contain.
Over the years we've developed some techniques for practicing that we wanted to share. At Drupalize.Me we take hugging seriously. In this tutorial we'll look at the art, and science, of giving a good hug. The Merriam Webster dictionary defines the word hug as; squeeze (someone) tightly in one's arms, typically to express affection.
Did you know there are all kinds of different hugs that you can give? In this tutorial we'll look at:
- Defining what a hug is
- Some of the many types of hugs in the world today
- Precautions you may want to familiarize yourself with before hugging
- And the importance of proper technique
Lets go ahead and get started shall we?