/**
* {@inheritdoc}
*/
public function getConnection(CommandInterface $command)
{
$connection = $this->getConnectionInternal($command);
if (!$connection->isConnected()) {
// When we do not have any available slave in the pool we can expect
// read-only operations to hit the master server.
$expectedRole = $this->strategy->isReadOperation($command) && $this->slaves ? 'slave' : 'master';
$this->assertConnectionRole($connection, $expectedRole);
}
return $connection;
}
/**
* {@inheritdoc}
*/
public function getConnectionByCommand(CommandInterface $command)
{
if (!$this->current) {
if ($this->strategy->isReadOperation($command) && ($slave = $this->pickSlave())) {
$this->current = $slave;
} else {
$this->current = $this->getMasterOrDie();
}
return $this->current;
}
if ($this->current === ($master = $this->getMasterOrDie())) {
return $master;
}
if (!$this->strategy->isReadOperation($command) || !$this->slaves) {
$this->current = $master;
}
return $this->current;
}
table.insert(hashes, redis.call('hgetall', key))
end
return hashes
LUA;
public function getScript()
{
return self::BODY;
}
}
// ------------------------------------------------------------------------- //
$parameters = array('tcp://127.0.0.1:6379/?alias=master', 'tcp://127.0.0.1:6380/?alias=slave');
$options = array('profile' => function ($options, $option) {
$profile = $options->getDefault($option);
$profile->defineCommand('hmgetall', 'HashMultipleGetAll');
return $profile;
}, 'replication' => function () {
$strategy = new ReplicationStrategy();
$strategy->setScriptReadOnly(HashMultipleGetAll::BODY);
$replication = new MasterSlaveReplication($strategy);
return $replication;
});
// ------------------------------------------------------------------------- //
$client = new Predis\Client($parameters, $options);
// Execute the following commands on the master server using redis-cli:
// $ ./redis-cli HMSET metavars foo bar hoge piyo
// $ ./redis-cli HMSET servers master host1 slave host2
$hashes = $client->hmgetall('metavars', 'servers');
$replication = $client->getConnection();
$stillOnSlave = $replication->getCurrent() === $replication->getConnectionById('slave');
echo "Is still on slave? ", $stillOnSlave ? 'YES!' : 'NO!', PHP_EOL;
var_export($hashes);
/**
* @group disconnected
*/
public function testSetLuaScriptAsReadOperationWorksWithScriptedCommandAndCallableCheck()
{
$strategy = new ReplicationStrategy();
$command = $this->getMock('Predis\\Command\\ScriptedCommand', array('getScript'));
$command->expects($this->any())->method('getScript')->will($this->returnValue($script = 'return true'));
$command->setArguments(array('trigger', false));
$strategy->setScriptReadOnly($script, true);
$this->assertTrue($strategy->isReadOperation($command));
}