MigrationStrategy class

Handles database migrations by delegating work to OnCreate and OnUpgrade methods.

Constructors

MigrationStrategy({OnCreate onCreate = _defaultOnCreate, OnUpgrade onUpgrade = _defaultOnUpdate, OnBeforeOpen? beforeOpen})

Construct a migration strategy from the provided onCreate and onUpgrade methods.

Properties

beforeOpen → OnBeforeOpen?

Executes after the database is ready to be used (ie. it has been opened and all migrations ran), but before any other queries will be sent. This makes it a suitable place to populate data after the database has been created or set sqlite PRAGMAS that you need.

final

hashCode → int

The hash code for this object.

no setter, inherited

onCreate → OnCreate

Executes when the database is opened for the first time.

final

onUpgrade → OnUpgrade

Executes when the database has been opened previously, but the last access happened at a different GeneratedDatabase.schemaVersion. Schema version upgrades and downgrades will both be run here.

final

runtimeType → Type

A representation of the runtime type of the object.

no setter, inherited

Methods

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