127 lines
4.1 KiB
PHP
127 lines
4.1 KiB
PHP
<?php
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declare(strict_types=1);
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/**
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* @copyright Copyright (c) 2023 Varun Patil <radialapps@gmail.com>
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* @author Varun Patil <radialapps@gmail.com>
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* @license GNU AGPL version 3 or any later version
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*
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* This program is free software: you can redistribute it and/or modify
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* it under the terms of the GNU Affero General Public License as
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* published by the Free Software Foundation, either version 3 of the
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* License, or (at your option) any later version.
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*
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* This program is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU Affero General Public License for more details.
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*
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* You should have received a copy of the GNU Affero General Public License
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* along with this program. If not, see <http://www.gnu.org/licenses/>.
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*/
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namespace OCA\Memories\Migration;
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use OCP\DB\ISchemaWrapper;
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use OCP\DB\Types;
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use OCP\IDBConnection;
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use OCP\Migration\IOutput;
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use OCP\Migration\SimpleMigrationStep;
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/**
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* Auto-generated migration step: Please modify to your needs!
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*/
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class Version505000Date20230821044807 extends SimpleMigrationStep
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{
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/** @var IDBConnection */
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private $dbc;
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public function __construct(IDBConnection $dbc)
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{
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$this->dbc = $dbc;
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}
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/**
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* @param \Closure(): ISchemaWrapper $schemaClosure
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*/
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public function preSchemaChange(IOutput $output, \Closure $schemaClosure, array $options): void {}
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/**
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* @param \Closure(): ISchemaWrapper $schemaClosure
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*/
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public function changeSchema(IOutput $output, \Closure $schemaClosure, array $options): ?ISchemaWrapper
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{
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/** @var ISchemaWrapper $schema */
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$schema = $schemaClosure();
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$table = $schema->getTable('memories');
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$table->addColumn('epoch', Types::BIGINT, [
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'notnull' => true,
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'default' => 0,
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]);
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return $schema;
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}
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/**
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* @param \Closure(): ISchemaWrapper $schemaClosure
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*/
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public function postSchemaChange(IOutput $output, \Closure $schemaClosure, array $options): void
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{
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// extracts the epoch value from the EXIF json and stores it in the epoch column
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try {
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// get the required records
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$result = $this->dbc->getQueryBuilder()
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->select('m.id', 'm.exif')
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->from('memories', 'm')
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->executeQuery()
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;
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$count = 0;
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// iterate the memories table and update the epoch column
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$this->dbc->beginTransaction();
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while ($row = $result->fetch()) {
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try {
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// get the epoch from the exif data
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$exif = json_decode($row['exif'], true);
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if (!\is_array($exif) || !\array_key_exists('DateTimeEpoch', $exif)) {
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continue;
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}
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// get epoch from exif if available
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if ($epoch = (int) $exif['DateTimeEpoch']) {
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// update the epoch column
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$query = $this->dbc->getQueryBuilder();
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$query->update('memories')
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->set('epoch', $query->createNamedParameter($epoch))
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->where($query->expr()->eq('id', $query->createNamedParameter((int) $row['id'], \PDO::PARAM_INT)))
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->executeStatement()
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;
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// increment the counter
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++$count;
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}
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} catch (\Exception $e) {
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continue;
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}
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// commit every 50 rows
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if (0 === $count % 50) {
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$this->dbc->commit();
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$this->dbc->beginTransaction();
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}
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}
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// commit the remaining rows
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$this->dbc->commit();
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// close the cursor
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$result->closeCursor();
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} catch (\Exception $e) {
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error_log('Automatic migration failed: '.$e->getMessage());
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error_log('Please run occ memories:index -f');
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}
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}
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}
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