public static async Task BulkInsertAsync <TEntity>(this DbContext context, IEnumerable <TEntity> items, Action <BulkOptionsBuilder> bulkOptions = null, CancellationToken token = default(CancellationToken))
{
GetBulkInfrstructure <TEntity>(context, out var sp, out var entity, out var relationalConnection);
IDbContextTransaction target = null;
if (relationalConnection.CurrentTransaction == null)
{
target = await relationalConnection.BeginTransactionAsync(token);
}
using (var transaction = target.NullDisposable())
{
var builder = new BulkOptionsBuilder();
bulkOptions?.Invoke(builder);
var options = builder.Options;
var insertProcessor = new InsertBulkProcessor <TEntity>(new EntityMetadataColumnSetupProvider(entity, EntityState.Added, options), options.GetSqlBulkOptions(EntityState.Added), options.Setup);
await insertProcessor.ProcessAsync(relationalConnection, items, token);
transaction.Target?.Commit();
}
}
