/**
* Returns all sessions which are tagged by the specified tag.
*
* @param string $tag A valid Cache Frontend tag
* @return array A collection of Session objects or an empty array if tag did not match
* @api
*/
public function getSessionsByTag($tag)
{
$taggedSessions = [];
foreach ($this->metaDataCache->getByTag(Session::TAG_PREFIX . $tag) as $sessionIdentifier => $sessionInfo) {
$session = new Session($sessionIdentifier, $sessionInfo['storageIdentifier'], $sessionInfo['lastActivityTimestamp'], $sessionInfo['tags']);
$taggedSessions[] = $session;
}
return $taggedSessions;
}
/**
* @test
* @requires extension igbinary
*/
public function getByTagUsesIgBinaryIfAvailable()
{
$tag = 'sometag';
$identifiers = ['one', 'two'];
$entries = ['one' => 'one value', 'two' => 'two value'];
$backend = $this->prepareDefaultBackend();
$backend->expects($this->once())->method('findIdentifiersByTag')->with($this->equalTo($tag))->will($this->returnValue($identifiers));
$backend->expects($this->exactly(2))->method('get')->will($this->onConsecutiveCalls(igbinary_serialize('one value'), igbinary_serialize('two value')));
$cache = new VariableFrontend('VariableFrontend', $backend);
$cache->initializeObject();
$this->assertEquals($entries, $cache->getByTag($tag), 'Did not receive the expected entries');
}
