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<?php
/*
* This file is part of the Predis package.
*
* (c) Daniele Alessandri <suppakilla@gmail.com>
*
* For the full copyright and license information, please view the LICENSE
* file that was distributed with this source code.
*/
namespace Predis\Command;
/**
* @link http://redis.io/commands/zunionstore
*
* @author Daniele Alessandri <suppakilla@gmail.com>
*/
class ZSetUnionStore extends Command
{
/**
* {@inheritdoc}
*/
public function getId()
{
return 'ZUNIONSTORE';
}
/**
* {@inheritdoc}
*/
protected function filterArguments(array $arguments)
{
$options = array();
$argc = count($arguments);
if ($argc > 2 && is_array($arguments[$argc - 1])) {
$options = $this->prepareOptions(array_pop($arguments));
}
if (is_array($arguments[1])) {
$arguments = array_merge(
array($arguments[0], count($arguments[1])),
$arguments[1]
);
}
return array_merge($arguments, $options);
}
/**
* Returns a list of options and modifiers compatible with Redis.
*
* @param array $options List of options.
*
* @return array
*/
private function prepareOptions($options)
{
$opts = array_change_key_case($options, CASE_UPPER);
$finalizedOpts = array();
if (isset($opts['WEIGHTS']) && is_array($opts['WEIGHTS'])) {
$finalizedOpts[] = 'WEIGHTS';
foreach ($opts['WEIGHTS'] as $weight) {
$finalizedOpts[] = $weight;
}
}
if (isset($opts['AGGREGATE'])) {
$finalizedOpts[] = 'AGGREGATE';
$finalizedOpts[] = $opts['AGGREGATE'];
}
return $finalizedOpts;
}
}