99 lines
2.5 KiB
PHP
99 lines
2.5 KiB
PHP
<?php
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namespace Kirby\Content;
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use Kirby\Cache\MemoryCache;
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use Kirby\Cms\Language;
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use Kirby\Cms\ModelWithContent;
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/**
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* @package Kirby Content
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* @author Bastian Allgeier <bastian@getkirby.com>
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* @link https://getkirby.com
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* @copyright Bastian Allgeier
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* @license https://getkirby.com/license
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*/
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class MemoryStorage extends Storage
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{
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/**
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* Cache instance, used to store content in memory
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*/
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protected MemoryCache $cache;
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/**
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* Sets up the cache instance
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*/
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public function __construct(protected ModelWithContent $model)
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{
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parent::__construct($model);
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$this->cache = new MemoryCache();
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}
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/**
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* Returns a unique id for a combination
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* of the version id, the language code and the model id
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*/
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protected function cacheId(VersionId $versionId, Language $language): string
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{
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return $versionId->value() . '/' . $language->code() . '/' . $this->model->id() . '/' . spl_object_hash($this->model);
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}
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/**
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* Deletes an existing version in an idempotent way if it was already deleted
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*/
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public function delete(VersionId $versionId, Language $language): void
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{
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$this->cache->remove($this->cacheId($versionId, $language));
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}
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/**
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* Checks if a version exists
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*/
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public function exists(VersionId $versionId, Language $language): bool
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{
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return $this->cache->exists($this->cacheId($versionId, $language));
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}
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/**
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* Returns the modification timestamp of a version if it exists
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*/
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public function modified(VersionId $versionId, Language $language): int|null
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{
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if ($this->exists($versionId, $language) === false) {
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return null;
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}
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return $this->cache->modified($this->cacheId($versionId, $language));
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}
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/**
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* Returns the stored content fields
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*
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* @return array<string, string>
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*/
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public function read(VersionId $versionId, Language $language): array
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{
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return $this->cache->get($this->cacheId($versionId, $language)) ?? [];
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}
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/**
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* Updates the modification timestamp of an existing version
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*
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* @throws \Kirby\Exception\NotFoundException If the version does not exist
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*/
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public function touch(VersionId $versionId, Language $language): void
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{
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$fields = $this->read($versionId, $language);
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$this->write($versionId, $language, $fields);
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}
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/**
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* Writes the content fields of an existing version
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*
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* @param array<string, string> $fields Content fields
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*/
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protected function write(VersionId $versionId, Language $language, array $fields): void
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{
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$this->cache->set($this->cacheId($versionId, $language), $fields);
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}
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}
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