/// <exception cref = "SqlException" />
/// <exception cref = "OperationCanceledException" />
static async ValueTask <MigrationDescriptor?> MbNextDescriptor
(IDbMigrationProvider dbMigrationProvider,
IRwSqlTransaction transaction,
String migrationSchema,
MigrationDescriptorCollection descriptors,
CancellationToken cancellationToken)
{
var mbLastMigration = await
dbMigrationProvider.MaybeLastMigrationInfo(transaction, migrationSchema, cancellationToken);
if (!(mbLastMigration is {} lastMigration))
{
return(descriptors[0]);
}
public DbMigrationService
(DbMigrationState state,
IDbProvider dbProvider,
IDbMigrationProvider dbMigrationProvider,
IDbMigrationPlan migrationPlan,
IHostApplicationLifetime appLifetime,
IServiceProvider serviceProvider,
ILogger <DbMigrationService> logger)
{
this.state = state;
this.dbProvider = dbProvider;
this.dbMigrationProvider = dbMigrationProvider;
this.migrationPlan = migrationPlan;
this.appLifetime = appLifetime;
this.serviceProvider = serviceProvider;
this.logger = logger;
}