protected async Task <int> GetNumberUpdatedAsync(DbContext context)
{
var resultParameter = new SqlParameter("@result", SqlDbType.Int)
{
Direction = ParameterDirection.Output
};
string sqlQueryCount = SqlQueryBuilder.SelectCountIsUpdateFromOutputTable(this);
await context.Database.ExecuteSqlCommandAsync($"SET @result = ({sqlQueryCount});", resultParameter);
return((int)resultParameter.Value);
}
// Compiled queries created manually to avoid EF Memory leak bug when using EF with dynamic SQL:
// https://github.com/borisdj/EFCore.BulkExtensions/issues/73
// Once the following Issue gets fixed(expected in EF 3.0) this can be replaced with code segment: DirectQuery
// https://github.com/aspnet/EntityFrameworkCore/issues/12905
#region CompiledQuery
public void LoadOutputData <T>(DbContext context, IList <T> entities) where T : class
{
if (BulkConfig.SetOutputIdentity && HasSinglePrimaryKey)
{
var sqlQuery = SqlQueryBuilder.SelectFromOutputTable(this);
var entitiesWithOutputIdentity = QueryOutputTable <T>(context, sqlQuery).ToList();
UpdateEntitiesIdentity(entities, entitiesWithOutputIdentity);
}
if (!BulkConfig.CalculateStats)
{
return;
}
SqlQueryBuilder.SelectCountIsUpdateFromOutputTable(this);
var numberUpdated = GetNumberUpdated(context);
BulkConfig.StatsInfo = new StatsInfo
{
StatsNumberUpdated = numberUpdated,
StatsNumberInserted = entities.Count - numberUpdated
};
}