This quick start guide will help you get ready to use the Migrations plugin with your application.
Run Console/cake Migrations.migration run all -p Migrations to initialize the schema_migrations table.
The first step to adding migrations to an existing database is to import the database's structure into a format the Migrations plugin can work with. Namely, a migration file. To create your first migration file run the following command:
cake Migrations.migration generate
Follow the script and answer the questions. This will generate a new file containing a database structure snapshot using the internal Migrations plugin syntax. If you want to import all of your tables, regardless if it has a model or not, you can use -f (force) parameter while running the command.
cake Migrations.migration generate -f
After generating or being supplied with a set of migrations, you can process them to change the state of your database.
This is the crux of the Migrations plugin, allowing the migration of schemas up and down the migration chain, offering flexibility and easy management of your schema and data states.
This will run the next not yet applied migration:
cake Migrations.migration run up
This will revert the last applied migration:
cake Migrations.migration run down
This will run all migrations that are found:
cake Migrations.migration run all