1. interface
  2. Lemonade
  3. \
  4. Framework
  5. \
  6. Database
  7. \
  8. Migration
  9. \
  10. MigrationInterface

MigrationInterface

interface MigrationInterface (View source)

Contract for a one-way database migration.

The identifier gives a migration its stable identity and determines its execution order. The migration applies its schema changes through the existing Schema API.

Methods

static string
identifier()

Returns a stable YYYYMMDDHHMMSS_description identifier.

string
void
up(Schema $schema)

Applies the schema change.

void

Details

identifier

static string identifier()
at line 23

Returns a stable YYYYMMDDHHMMSS_description identifier.

An identifier must not change after the migration has been applied.

Return Value

string

up

void up(Schema $schema)
at line 30

Applies the schema change.

The framework does not provide automatic rollback or guarantee DDL atomicity.

Parameters

Schema $schema

Return Value

void