74 lines
2.7 KiB
PHP
74 lines
2.7 KiB
PHP
<?php
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namespace OCA\Memories\Db;
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use OC\DB\SchemaWrapper;
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use OCP\Migration\IOutput;
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class AddMissingIndices
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{
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/**
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* Add missing indices to the database schema.
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*/
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public static function run(IOutput $output): SchemaWrapper
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{
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$connection = \OC::$server->get(\OC\DB\Connection::class);
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$schema = new SchemaWrapper($connection);
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// Should migrate at end
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$ops = [];
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// Speed up CTE lookup for subdirectories
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if ($schema->hasTable('filecache')) {
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$table = $schema->getTable('filecache');
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if (!$table->hasIndex('memories_parent_mimetype')) {
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$table->addIndex(['parent', 'mimetype'], 'memories_parent_mimetype');
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$ops[] = 'filecache::memories_parent_mimetype';
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}
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}
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// Add index on systemtag_object_mapping to speed up the query
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if ($schema->hasTable('systemtag_object_mapping')) {
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$table = $schema->getTable('systemtag_object_mapping');
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if (!$table->hasIndex('memories_type_tagid')) {
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$table->addIndex(['objecttype', 'systemtagid'], 'memories_type_tagid');
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$ops[] = 'systemtag_object_mapping::memories_type_tagid';
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}
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}
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// Add index on recognize detections for file id to speed up joins
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if ($schema->hasTable('recognize_face_detections')) {
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$table = $schema->getTable('recognize_face_detections');
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// Starting at some version, recognize ships an index on file_id
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// In that case, we *remove* the memories index if it exists
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$hasOwn = $table->hasIndex('recognize_facedet_file');
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$hasOur = $table->hasIndex('memories_file_id');
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if (!$hasOwn && !$hasOur) {
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// Add our index because none exists
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$table->addIndex(['file_id'], 'memories_file_id');
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$ops[] = 'recognize_face_detections::memories_file_id';
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} elseif ($hasOwn && $hasOur) {
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// Remove our index because recognize has one
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$table->dropIndex('memories_file_id');
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$ops[] = '-recognize_face_detections::memories_file_id';
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}
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}
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// Migrate
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if (\count($ops) > 0 && null !== $connection) {
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$output->info('Updating external table schema: '.implode(', ', $ops));
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$connection->migrateToSchema($schema->getWrappedSchema());
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} elseif (null === $connection) {
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$output->warning('No database connection, skipping external table schema update');
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} else {
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$output->info('External table schema seem up to date');
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}
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return $schema;
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}
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}
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