What are GORM migrations and how do I use them?

What are GORM migrations and how do I use them?

GORM migrations are a way to manage database schema changes in Go applications using the GORM ORM. They allow you to create, update, and delete database tables and fields in a structured manner.

Can you show me an example of how to create a migration?

Sure! To create a migration, you can use the AutoMigrate function. For example:

db.AutoMigrate(&User{})

This will create or update the users table based on the User struct.

What if I want to add a new column to an existing table?

You can define the new column in your struct and then call AutoMigrate again. GORM will automatically add the new column to the existing table.

Are there any best practices for managing migrations?

Yes, it's best to version your migrations, keep them in a dedicated directory, and test them in a staging environment before applying to production.