protected DatabaseBackend::doSetMultiple(array $items)
Stores multiple items in the persistent cache.
Parameters
array $items: An array of cache items, keyed by cid.
See also
\Drupal\Core\Cache\CacheBackendInterface::setMultiple()
File
- core/lib/Drupal/Core/Cache/DatabaseBackend.php, line 188
Class
- DatabaseBackend
- Defines a default cache implementation.
Namespace
Drupal\Core\Cache
Code
1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 | protected function doSetMultiple(array $items) { $values = array(); foreach ($items as $cid => $item) { $item += array( 'expire' => CacheBackendInterface::CACHE_PERMANENT, 'tags' => array(), ); assert('\Drupal\Component\Assertion\Inspector::assertAllStrings($item[\'tags\'])', 'Cache Tags must be strings.'); $item['tags'] = array_unique($item['tags']); // Sort the cache tags so that they are stored consistently in the DB. sort($item['tags']); $fields = array( 'cid' => $this->normalizeCid($cid), 'expire' => $item['expire'], 'created' => round(microtime(TRUE), 3), 'tags' => implode(' ', $item['tags']), 'checksum' => $this->checksumProvider->getCurrentChecksum($item['tags']), ); if (!is_string($item['data'])) { $fields['data'] = serialize($item['data']); $fields['serialized'] = 1; } else { $fields['data'] = $item['data']; $fields['serialized'] = 0; } $values[] = $fields; } // Use an upsert query which is atomic and optimized for multiple-row // merges. $query = $this->connection ->upsert($this->bin) ->key('cid') ->fields(array('cid', 'expire', 'created', 'tags', 'checksum', 'data', 'serialized')); foreach ($values as $fields) { // Only pass the values since the order of $fields matches the order of // the insert fields. This is a performance optimization to avoid // unnecessary loops within the method. $query->values(array_values($fields)); } $query->execute();} |
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