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<?php
declare(strict_types=1);
/**
* SPDX-FileCopyrightText: 2023 Nextcloud GmbH and Nextcloud contributors
* SPDX-License-Identifier: AGPL-3.0-or-later
*/
namespace OCP\DB\Events;
/**
* Event to allow apps to register information about missing database indices
*
* This event will be dispatched for checking on the admin settings and when running
* occ db:add-missing-indices which will then create those indices
*
* @since 28.0.0
*/
class AddMissingIndicesEvent extends \OCP\EventDispatcher\Event {
/** @var array<array-key, array{tableName: string, indexName: string, columns: string[], options: array{}, dropUnnamedIndex: bool, uniqueIndex: bool}> */
private array $missingIndices = [];
/** @var array<array-key, array{tableName: string, oldIndexNames: array, newIndexName: string, columns: string[], uniqueIndex: bool, options: array{}}> */
private array $toReplaceIndices = [];
/**
* @param string[] $columns
* @since 28.0.0
*/
public function addMissingIndex(string $tableName, string $indexName, array $columns, array $options = [], bool $dropUnnamedIndex = false): void {
$this->missingIndices[] = [
'tableName' => $tableName,
'indexName' => $indexName,
'columns' => $columns,
'options' => $options,
'dropUnnamedIndex' => $dropUnnamedIndex,
'uniqueIndex' => false,
];
}
/**
* @param string[] $columns
* @since 28.0.0
*/
public function addMissingUniqueIndex(string $tableName, string $indexName, array $columns, array $options = [], bool $dropUnnamedIndex = false): void {
$this->missingIndices[] = [
'tableName' => $tableName,
'indexName' => $indexName,
'columns' => $columns,
'options' => $options,
'dropUnnamedIndex' => $dropUnnamedIndex,
'uniqueIndex' => true,
];
}
/**
* @since 28.0.0
* @return array<array-key, array{tableName: string, indexName: string, columns: string[], options: array{}, dropUnnamedIndex: bool, uniqueIndex: bool}>
*/
public function getMissingIndices(): array {
return $this->missingIndices;
}
/**
* Replace one or more existing indices with a new one. Can be used to make an index unique afterwards or merge two indices into a multicolumn index.
*
* Note: Make sure to not use the same index name for the new index as for old indices.
*
* Example:
*
* <code>
* $event->replaceIndex(
* 'my_table',
* ['old_index_col_a', 'old_index_col_b'],
* 'new_index_col_a_b',
* ['column_a', 'column_b'],
* false
* );
* </code>
*
* @since 29.0.0
*/
public function replaceIndex(string $tableName, array $oldIndexNames, string $newIndexName, array $columns, bool $unique, array $options = []): void {
$this->toReplaceIndices[] = [
'tableName' => $tableName,
'oldIndexNames' => $oldIndexNames,
'newIndexName' => $newIndexName,
'columns' => $columns,
'uniqueIndex' => $unique,
'options' => $options,
];
}
/**
* @since 29.0.0
* @return array<array-key, array{tableName: string, oldIndexNames: array, newIndexName: string, columns: string[], uniqueIndex: bool, options: array{}}>
*/
public function getIndicesToReplace(): array {
return $this->toReplaceIndices;
}
}
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