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darin.kelkhoff
2025-06-12 16:52:20 -05:00
parent e11a23ccc0
commit 97883b3e43
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88
qqq-backend-core/src/main/java/com/kingsrook/qqq/backend/core/actions/customizers/OldRecordHelper.java Normal file
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/*
* QQQ - Low-code Application Framework for Engineers.
* Copyright (C) 2021-2025. Kingsrook, LLC
* 651 N Broad St Ste 205 # 6917 | Middletown DE 19709 | United States
* contact@kingsrook.com
* https://github.com/Kingsrook/
*
* This program is free software: you can redistribute it and/or modify
* it under the terms of the GNU Affero General Public License as
* published by the Free Software Foundation, either version 3 of the
* License, or (at your option) any later version.
*
* This program is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU Affero General Public License for more details.
*
* You should have received a copy of the GNU Affero General Public License
* along with this program. If not, see <https://www.gnu.org/licenses/>.
*/
package com.kingsrook.qqq.backend.core.actions.customizers;
import java.io.Serializable;
import java.util.Collections;
import java.util.List;
import java.util.Map;
import java.util.Optional;
import com.kingsrook.qqq.backend.core.context.QContext;
import com.kingsrook.qqq.backend.core.model.data.QRecord;
import com.kingsrook.qqq.backend.core.model.metadata.fields.QFieldType;
import com.kingsrook.qqq.backend.core.utils.collections.TypeTolerantKeyMap;
/*******************************************************************************
** utility class to help table customizers working with the oldRecordList.
** Usage is just 2 lines:
** outside of loop-over-records:
** - OldRecordHelper oldRecordHelper = new OldRecordHelper(updateInput.getTableName(), oldRecordList);
** then inside the record loop:
** - Optional<QRecord> oldRecord = oldRecordHelper.getOldRecord(record);
*******************************************************************************/
public class OldRecordHelper
{
private String primaryKeyField;
private QFieldType primaryKeyType;
private Optional<List<QRecord>> oldRecordList;
private Map<Serializable, QRecord> oldRecordMap;
/*******************************************************************************
** Constructor
**
*******************************************************************************/
public OldRecordHelper(String tableName, Optional<List<QRecord>> oldRecordList)
{
this.primaryKeyField = QContext.getQInstance().getTable(tableName).getPrimaryKeyField();
this.primaryKeyType = QContext.getQInstance().getTable(tableName).getField(primaryKeyField).getType();
this.oldRecordList = oldRecordList;
}
/***************************************************************************
**
***************************************************************************/
public Optional<QRecord> getOldRecord(QRecord record)
{
if(oldRecordMap == null)
{
if(oldRecordList.isPresent())
{
oldRecordMap = new TypeTolerantKeyMap<>(primaryKeyType);
oldRecordList.get().forEach(r -> oldRecordMap.put(r.getValue(primaryKeyField), r));
}
else
{
oldRecordMap = Collections.emptyMap();
}
}
return (Optional.ofNullable(oldRecordMap.get(record.getValue(primaryKeyField))));
}
}

70
qqq-backend-core/src/test/java/com/kingsrook/qqq/backend/core/actions/customizers/OldRecordHelperTest.java Normal file
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/*
* QQQ - Low-code Application Framework for Engineers.
* Copyright (C) 2021-2025. Kingsrook, LLC
* 651 N Broad St Ste 205 # 6917 | Middletown DE 19709 | United States
* contact@kingsrook.com
* https://github.com/Kingsrook/
*
* This program is free software: you can redistribute it and/or modify
* it under the terms of the GNU Affero General Public License as
* published by the Free Software Foundation, either version 3 of the
* License, or (at your option) any later version.
*
* This program is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU Affero General Public License for more details.
*
* You should have received a copy of the GNU Affero General Public License
* along with this program. If not, see <https://www.gnu.org/licenses/>.
*/
package com.kingsrook.qqq.backend.core.actions.customizers;
import java.util.List;
import java.util.Optional;
import com.kingsrook.qqq.backend.core.BaseTest;
import com.kingsrook.qqq.backend.core.model.data.QRecord;
import com.kingsrook.qqq.backend.core.utils.TestUtils;
import org.junit.jupiter.api.Test;
import static org.junit.jupiter.api.Assertions.assertFalse;
import static org.junit.jupiter.api.Assertions.assertTrue;
/*******************************************************************************
** Unit test for OldRecordHelper
*******************************************************************************/
class OldRecordHelperTest extends BaseTest
{
/*******************************************************************************
**
*******************************************************************************/
@Test
void test()
{
OldRecordHelper oldRecordHelper = new OldRecordHelper(TestUtils.TABLE_NAME_PERSON_MEMORY, Optional.of(List.of(
new QRecord().withValue("id", 1)
)));
assertTrue(oldRecordHelper.getOldRecord(new QRecord().withValue("id", 1)).isPresent());
assertTrue(oldRecordHelper.getOldRecord(new QRecord().withValue("id", "1")).isPresent());
assertFalse(oldRecordHelper.getOldRecord(new QRecord().withValue("id", 2)).isPresent());
}
/*******************************************************************************
**
*******************************************************************************/
@Test
void testEmptyOldRecords()
{
OldRecordHelper oldRecordHelper = new OldRecordHelper(TestUtils.TABLE_NAME_PERSON_MEMORY, Optional.empty());
assertFalse(oldRecordHelper.getOldRecord(new QRecord().withValue("id", 1)).isPresent());
assertFalse(oldRecordHelper.getOldRecord(new QRecord().withValue("id", "1")).isPresent());
assertFalse(oldRecordHelper.getOldRecord(new QRecord().withValue("id", 2)).isPresent());
}
}