Migrator class

Runs and rolls back Migrations, recording each in a repository table the way Laravel's migrations table does. Every migration runs inside its own transaction, so a failing up() leaves neither its tables nor its repository row behind. On MySQL, DDL statements commit implicitly, so a migration that fails halfway may leave tables behind; the repository row is still not written, so fixing and re-running is safe once you drop what was created. Laravel has the same limitation.

Constructors

Migrator(Connection connection, List<Migration> migrations, {String table = 'migrations', void log(String message)?})

Properties

connection → Connection

final

grammar → SchemaGrammar

final

hashCode → int

The hash code for this object.

no setter, inherited

log → void Function(String message)?

Receives one progress line per migration run or rolled back.

final

migrations → List<Migration>

final

runtimeType → Type

A representation of the runtime type of the object.

no setter, inherited

table → String

final

Methods

noSuchMethod(Invocation invocation) → dynamic

Invoked when a nonexistent method or property is accessed.

inherited

refresh() → Future<List<String>>

reset then run. Returns the names that ran.

reset() → Future<List<String>>

Rolls back every migration that has run.

rollback({int steps = 1}) → Future<List<String>>

Rolls back the last steps batches, newest migration first.

run() → Future<List<String>>

Runs every pending migration in order as one new batch. Returns the names that ran.

status() → Future<List<MigrationStatus>>

toString() → String

A string representation of this object.

inherited

Operators

operator ==(Object other) → bool

The equality operator.

inherited