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108 lines (91 loc) · 3.08 KB
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/***************************************************************************
*
* Project _____ __ ____ _ _
* ( _ ) /__\ (_ _)_| |_ _| |_
* )(_)( /(__)\ )( (_ _)(_ _)
* (_____)(__)(__)(__) |_| |_|
*
*
* Copyright 2018-present, Leonid Stryzhevskyi <lganzzzo@gmail.com>
*
* Licensed under the Apache License, Version 2.0 (the "License");
* you may not use this file except in compliance with the License.
* You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*
***************************************************************************/
#include "QueryResult.hpp"
namespace oatpp { namespace postgresql {
QueryResult::QueryResult(PGresult* dbResult,
const provider::ResourceHandle<orm::Connection>& connection,
const std::shared_ptr<mapping::ResultMapper>& resultMapper,
const std::shared_ptr<const data::mapping::TypeResolver>& typeResolver)
: m_dbResult(dbResult)
, m_connection(connection)
, m_resultMapper(resultMapper)
, m_resultData(dbResult, typeResolver)
{
auto status = PQresultStatus(m_dbResult);
switch(status) {
case PGRES_SINGLE_TUPLE: {
throw std::runtime_error("[oatpp::postgresql::QueryResult::QueryResult()]: Error. Single-row mode is not supported!");
}
case PGRES_TUPLES_OK: {
m_success = true;
m_type = TYPE_TUPLES;
break;
}
case PGRES_COMMAND_OK: {
m_success = true;
m_type = TYPE_COMMAND;
break;
}
default: {
m_success = false;
m_type = TYPE_ERROR;
if(status == PGRES_FATAL_ERROR) {
connection.invalidator->invalidate(connection.object);
}
}
}
}
QueryResult::~QueryResult() {
PQclear(m_dbResult);
}
provider::ResourceHandle<orm::Connection> QueryResult::getConnection() const {
return provider::ResourceHandle<orm::Connection>(m_connection.object, m_connection.invalidator);
}
bool QueryResult::isSuccess() const {
return m_success;
}
oatpp::String QueryResult::getErrorMessage() const {
if(!m_success) {
auto pgConnection = std::static_pointer_cast<postgresql::Connection>(m_connection.object);
return PQerrorMessage(pgConnection->getHandle());
}
return nullptr;
}
v_int64 QueryResult::getPosition() const {
return m_resultData.rowIndex;
}
v_int64 QueryResult::getKnownCount() const {
switch(m_type) {
case TYPE_TUPLES: return m_resultData.rowCount;
// case TYPE_COMMAND: return 0;
}
return 0;
}
bool QueryResult::hasMoreToFetch() const {
return getKnownCount() > 0;
}
oatpp::Void QueryResult::fetch(const oatpp::Type* const resultType, v_int64 count) {
return m_resultMapper->readRows(&m_resultData, resultType, count);
}
}}