private DbKeysInt<T> CreateBulkDeleteKeys<KeyType>()
{
if (Info.DeleteKeyColumns.Count == 0) {
// NoDeletesAttribute
return (connection, keys, transaction, commandTimeout) => {
return 0;
};
}
string deleteCmd = DeleteCmd();
string keyName = EqualityColumns[0].ColumnName;
return (connection, keys, transaction, commandTimeout) => {
int count = 0;
string bulkDeleteCmd = $"{deleteCmd}WHERE \t{keyName} in @Keys";
foreach (IEnumerable<KeyType> Keys in ExtraUtil.Partition(keys.Select(k => (KeyType) k), 2000)) {
try {
int deleted = connection.Execute(bulkDeleteCmd, new { Keys }, transaction, commandTimeout);
count += deleted;
}
catch (Exception ex) {
throw new InvalidOperationException(ex.Message + "\n" + bulkDeleteCmd);
}
}
return count;
};
}
private DbKeysList<T> CreateBulkGetKeys<KeyType>()
{
string paramsSelectFromTableBulk = ParamsSelectFromTableBulk();
string keyName = EqualityColumns[0].ColumnName;
return (connection, keys, transaction, commandTimeout) => {
List<T> result = new List<T>();
string bulkGetKeysQuery = $"SELECT {paramsSelectFromTableBulk}WHERE \t{keyName} in @Keys";
foreach (IEnumerable<KeyType> Keys in ExtraUtil.Partition(keys.Select(k => (KeyType) k), 2000)) {
try {
IEnumerable<T> list = connection.Query<T>(bulkGetKeysQuery, new { Keys }, transaction, true, commandTimeout);
result.AddRange(list);
}
catch (Exception ex) {
throw new InvalidOperationException(ex.Message + "\n" + bulkGetKeysQuery);
}
}
return result;
};
}
