Migration class

Single schema migration from from to to.

Constructors

Migration({required int from, required int to, required MigrationFn migrate})
Creates a migration definition.
Migration.withContext({required int from, required int to, required MigrationFnWithContext migrate})
Creates a migration definition that uses MigrationContext.

Properties

from int
Source schema version.
final
hashCode int
The hash code for this object.
no setterinherited
migrate MigrationFn
Migration callback for transforming payloads.
final
runtimeType Type
A representation of the runtime type of the object.
no setterinherited
to int
Target schema version.
final

Methods

apply(Map<String, dynamic> payload, MigrationContext context) Map<String, dynamic>
Applies the migration using context.
noSuchMethod(Invocation invocation) → dynamic
Invoked when a nonexistent method or property is accessed.
inherited
toString() String
A string representation of this object.
inherited

Operators

operator ==(Object other) bool
The equality operator.
inherited