c58f935fdc
The example (and related documentation at redis.io) was not updated for 5 years. Redis had no sorted sets and hashes when the original code was written (!). An update was really needed. We also use a modern PHP client now: Predis. A copy is shipped within this repository to make life easier to newcomers trying Redis for the first time via this example.
93 lines
2.2 KiB
PHP
93 lines
2.2 KiB
PHP
<?php
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/*
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* This file is part of the Predis package.
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*
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* (c) Daniele Alessandri <suppakilla@gmail.com>
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*
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* For the full copyright and license information, please view the LICENSE
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* file that was distributed with this source code.
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*/
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namespace Predis\Command;
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/**
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* @link http://redis.io/commands/zunionstore
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* @author Daniele Alessandri <suppakilla@gmail.com>
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*/
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class ZSetUnionStore extends PrefixableCommand
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{
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/**
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* {@inheritdoc}
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*/
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public function getId()
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{
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return 'ZUNIONSTORE';
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}
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/**
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* {@inheritdoc}
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*/
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protected function filterArguments(Array $arguments)
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{
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$options = array();
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$argc = count($arguments);
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if ($argc > 2 && is_array($arguments[$argc - 1])) {
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$options = $this->prepareOptions(array_pop($arguments));
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}
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if (is_array($arguments[1])) {
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$arguments = array_merge(
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array($arguments[0], count($arguments[1])),
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$arguments[1]
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);
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}
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return array_merge($arguments, $options);
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}
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/**
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* Returns a list of options and modifiers compatible with Redis.
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*
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* @param array $options List of options.
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* @return array
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*/
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private function prepareOptions($options)
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{
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$opts = array_change_key_case($options, CASE_UPPER);
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$finalizedOpts = array();
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if (isset($opts['WEIGHTS']) && is_array($opts['WEIGHTS'])) {
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$finalizedOpts[] = 'WEIGHTS';
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foreach ($opts['WEIGHTS'] as $weight) {
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$finalizedOpts[] = $weight;
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}
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}
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if (isset($opts['AGGREGATE'])) {
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$finalizedOpts[] = 'AGGREGATE';
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$finalizedOpts[] = $opts['AGGREGATE'];
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}
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return $finalizedOpts;
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}
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/**
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* {@inheritdoc}
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*/
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public function prefixKeys($prefix)
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{
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if ($arguments = $this->getArguments()) {
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$arguments[0] = "$prefix{$arguments[0]}";
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$length = ((int) $arguments[1]) + 2;
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for ($i = 2; $i < $length; $i++) {
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$arguments[$i] = "$prefix{$arguments[$i]}";
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}
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$this->setRawArguments($arguments);
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}
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}
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}
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