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88 lines
1.8 KiB
88 lines
1.8 KiB
<?php
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/*
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* This file is part of php-cache organization.
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*
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* (c) 2015 Aaron Scherer <aequasi@gmail.com>, Tobias Nyholm <tobias.nyholm@gmail.com>
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*
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* This source file is subject to the MIT license that is bundled
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* with this source code in the file LICENSE.
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*/
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namespace Cache\Adapter\Common;
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/**
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* This trait could be used by adapters that do not have a native support for lists.
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*
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* @author Tobias Nyholm <tobias.nyholm@gmail.com>
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*/
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trait TagSupportWithArray
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{
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/**
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* Get a value from the storage.
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*
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* @param string $name
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*
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* @return mixed
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*/
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abstract public function getDirectValue($name);
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/**
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* Set a value to the storage.
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*
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* @param string $name
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* @param mixed $value
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*/
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abstract public function setDirectValue($name, $value);
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/**
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* {@inheritdoc}
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*/
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protected function appendListItem($name, $value)
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{
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$data = $this->getDirectValue($name);
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if (!is_array($data)) {
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$data = [];
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}
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$data[] = $value;
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$this->setDirectValue($name, $data);
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}
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/**
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* {@inheritdoc}
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*/
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protected function getList($name)
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{
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$data = $this->getDirectValue($name);
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if (!is_array($data)) {
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$data = [];
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}
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return $data;
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}
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/**
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* {@inheritdoc}
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*/
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protected function removeList($name)
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{
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$this->setDirectValue($name, []);
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return true;
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}
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/**
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* {@inheritdoc}
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*/
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protected function removeListItem($name, $key)
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{
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$data = $this->getList($name);
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foreach ($data as $i => $value) {
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if ($key === $value) {
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unset($data[$i]);
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}
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}
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return $this->setDirectValue($name, $data);
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}
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}
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