Description

Migrations must implement this.

Migration files must be contained in their own directory. The default directory is migrations/default/

Migration files must be named <SEQUENCE>.php, where SEQUENCE is a non-zero ascending identifier. The file must return an instance of this interface (e.g. an anonymous class).

Good practice is to have file names start with an ISO/UTC datetime, followed by a description of what they do.

Migrations are given the Schema helper, but can directly execute SQL if needed.

Each migration is performed within a transaction savepoint.

See the test migrations in test/migrations/default/, and the migration helper script in bin/

See also: DB::getMigrator(); Migrator::glob(); Schema::getDb()

Public Methods
void	down ($schema)

void	up ($schema)

Methods

◆ down()

void down ( $schema )

Parameters

Schema $schema

Returns: void

◆ up()

void up ( $schema )