apply method

@override Future<void> apply(Migration migration)

Applies the migration and records its version.

Implementation

@override
Future<void> apply(Migration migration) async {
  await _init();
  await _db.transaction((ctx) async {
    await ctx.insert(_table, {
      'version': migration.version,
      'created_at': DateTime.now().toIso8601String()
    });
    await ctx.execute(migration.statement);
  });
}