/// <summary>
/// Merges a list of <typeparamref name="TEntity"/>.
/// </summary>
/// <typeparam name="TEntity">The entity type.</typeparam>
/// <param name="context">The database context.</param>
/// <param name="entities">The list of entities to merge.</param>
/// <param name="operationType">The operation type.</param>
/// <param name="config">The bulk operation configuration.</param>
public static void BulkMerge <TEntity>(
this DbContext context,
IEnumerable <TEntity> entities,
BulkMergeOperationType operationType,
BulkConfig <TEntity> config = null)
where TEntity : class
{
Core.BulkMerge.New.Execute(
context, entities, operationType, config ?? new BulkConfig <TEntity>());
}
public BulkTableInfo(
DbContext context,
IEnumerable <TEntity> entities,
BulkConfig <TEntity> config,
BulkMergeOperationType operationType)
{
EntityMap = context.Db <TEntity>();
Config = config;
OperationType = operationType;
EntityCount = entities.Count();
TempTableName = string.Format("{0}{1}{2}", TempDBPrefix, EntityMap.TableName, Guid.NewGuid().ToString().Substring(0, 8));
Schema = EntityMap.Schema;
TableName = EntityMap.TableName;
InitIdentifierColumns();
InitOperationIncludedColumns();
InitIdentityColumn();
InitTempTableIncludedColumns();
InitTempOutputTableIncludedColumns();
}
public void Execute <TEntity>(
DbContext context,
IEnumerable <TEntity> entities,
BulkMergeOperationType operationType,
BulkConfig <TEntity> config)
where TEntity : class
{
BulkTableInfo <TEntity> tableInfo = new BulkTableInfo <TEntity>(context, entities, config, operationType);
// Creates inner transaction for the scope of the operation if the context doesn't have one.
var transaction = context.InternalTransaction();
try
{
ExecuteCommand(context, entities, tableInfo);
//Commit if internal transaction exists.
transaction?.Commit();
}
finally
{
transaction?.Dispose();
}
}
