/**
* Stores multiple items in the persistent cache.
*
* @param array $items
* An array of cache items, keyed by cid.
*
* @see \Drupal\Core\Cache\CacheBackendInterface::setMultiple()
*/
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();
}
/**
* {@inheritdoc}
*/
public function setMultiple(array $items)
{
$values = array();
foreach ($items as $cid => $item) {
// All items should have expiration data and initialized tags value.
$item += array('expire' => CacheBackendInterface::CACHE_PERMANENT, 'tags' => array());
assert('\\Drupal\\Component\\Assertion\\Inspector::assertAllStrings($item[\'tags\'])', 'Cache Tags must be strings.');
// Organize tags.
$item['tags'] = array_unique($item['tags']);
sort($item['tags']);
// Create a new object which will be passed to the memcached server for
// storage.
$value = new \stdClass();
$value->cid = $cid;
$value->expire = $item['expire'];
$value->created = round(microtime(TRUE), 3);
$value->tags = $item['tags'];
$value->checksum = $this->checksumProvider->getCurrentChecksum($item['tags']);
$value->data = $item['data'];
$values[] = $value;
}
if (empty($values)) {
return TRUE;
}
// Handover set operation to DrupalMemcache(d) object.
return $this->memcached->setMulti($values, $this->bin);
}
/**
* {@inheritdoc}
*/
public function setMultiple(array $items)
{
// Use a transaction so that the database can write the changes in a single
// commit.
$transaction = $this->connection->startTransaction();
try {
// Delete all items first so we can do one insert. Rather than multiple
// merge queries.
$this->deleteMultiple(array_keys($items));
$query = $this->connection->insert($this->bin)->fields(array('cid', 'data', 'expire', 'created', 'serialized', 'tags', 'checksum'));
foreach ($items as $cid => $item) {
$item += array('expire' => CacheBackendInterface::CACHE_PERMANENT, 'tags' => array());
Cache::validateTags($item['tags']);
$item['tags'] = array_unique($item['tags']);
// Sort the cache tags so that they are stored consistently in the DB.
sort($item['tags']);
$fields = array('cid' => $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;
}
$query->values($fields);
}
$query->execute();
} catch (\Exception $e) {
$transaction->rollback();
// @todo Log something here or just re throw?
throw $e;
}
}
/**
* {@inheritdoc}
*/
public function set($cid, $data, $expire = CacheBackendInterface::CACHE_PERMANENT, array $tags = array())
{
assert('\\Drupal\\Component\\Assertion\\Inspector::assertAllStrings($tags)', 'Cache tags must be strings.');
$tags = array_unique($tags);
$cache = new \stdClass();
$cache->cid = $cid;
$cache->created = round(microtime(TRUE), 3);
$cache->expire = $expire;
$cache->tags = implode(' ', $tags);
$cache->checksum = $this->checksumProvider->getCurrentChecksum($tags);
// APCu serializes/unserializes any structure itself.
$cache->serialized = 0;
$cache->data = $data;
// Expiration is handled by our own prepareItem(), not APCu.
apcu_store($this->getApcuKey($cid), $cache);
}
/**
* {@inheritdoc}
*/
public function setMultiple(array $items)
{
$values = array();
foreach ($items as $cid => $item) {
$item += array('expire' => CacheBackendInterface::CACHE_PERMANENT, 'tags' => array());
Cache::validateTags($item['tags']);
$item['tags'] = array_unique($item['tags']);
// Sort the cache tags so that they are stored consistently in the DB.
sort($item['tags']);
$fields = array('cid' => $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 a transaction so that the database can write the changes in a single
// commit. The transaction is started after calculating the tag checksums
// since that can create a table and this causes an exception when using
// PostgreSQL.
$transaction = $this->connection->startTransaction();
try {
// Delete all items first so we can do one insert. Rather than multiple
// merge queries.
$this->deleteMultiple(array_keys($items));
$query = $this->connection->insert($this->bin)->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();
} catch (\Exception $e) {
$transaction->rollback();
// @todo Log something here or just re throw?
throw $e;
}
}
/**
* {@inheritdoc}
*/
public function set($cid, $data, $expire = CacheBackendInterface::CACHE_PERMANENT, array $tags = array())
{
assert('\\Drupal\\Component\\Assertion\\Inspector::assertAllStrings($tags)', 'Cache tags must be strings.');
$tags = array_unique($tags);
$cache = new \stdClass();
$cache->cid = $cid;
$cache->created = round(microtime(TRUE), 3);
$cache->expire = $expire;
$cache->tags = implode(' ', $tags);
$cache->checksum = $this->checksumProvider->getCurrentChecksum($tags);
// APC serializes/unserializes any structure itself.
$cache->serialized = 0;
$cache->data = $data;
// apc_store()'s $ttl argument can be omitted but also set to 0 (zero),
// in which case the value will persist until it's removed from the cache or
// until the next cache clear, restart, etc. This is what we want to do
// when $expire equals CacheBackendInterface::CACHE_PERMANENT.
if ($expire === CacheBackendInterface::CACHE_PERMANENT) {
$expire = 0;
}
apc_store($this->getApcuKey($cid), $cache, $expire);
}
/**
* {@inheritdoc}
*/
public function set($cid, $data, $expire = Cache::PERMANENT, array $tags = array())
{
assert('\\Drupal\\Component\\Assertion\\Inspector::assertAllStrings($tags)', 'Cache Tags must be strings.');
$item = (object) array('cid' => $cid, 'data' => $data, 'created' => round(microtime(TRUE), 3), 'expire' => $expire, 'tags' => array_unique($tags), 'checksum' => $this->checksumProvider->getCurrentChecksum($tags));
$this->writeItem($this->normalizeCid($cid), $item);
}
/**
* {@inheritdoc}
*/
public function set($cid, $data, $expire = Cache::PERMANENT, array $tags = array())
{
Cache::validateTags($tags);
$item = (object) array('cid' => $cid, 'data' => $data, 'created' => round(microtime(TRUE), 3), 'expire' => $expire, 'tags' => array_unique($tags), 'checksum' => $this->checksumProvider->getCurrentChecksum($tags));
$this->writeItem($this->normalizeCid($cid), $item);
}
