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Phu Hoang
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Init project
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8 files changed

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‎Model/System/Config/RedisHandler.php‎

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<?php
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/**
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* Used in creating options for Redis Fallback Handler config value selection
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*/
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namespace Kodbruket\RedisFallback\Model\System\Config;
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use Magento\Framework\Option\ArrayInterface;
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/**
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* Class RedisHandler
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*/
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class RedisHandler implements ArrayInterface
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{
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const FILES = 'files';
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const DATABASE = 'db';
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/**
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* Options getter
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*
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* @return array
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*/
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public function toOptionArray()
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{
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return [
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[
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'value' => self::FILES,
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'label' => __('Files')
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],
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[
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'value' => self::DATABASE,
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'label' => __('Database')
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]
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];
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}
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/**
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* Get options in "key-value" format
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*
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* @return array
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*/
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public function toArray()
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{
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return [
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self::FILES => __('Files'),
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self::DATABASE => __('Database')
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];
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}
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}

‎Session/SaveHandler.php‎

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<?php
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namespace Kodbruket\RedisFallback\Session;
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use Magento\Framework\Session\SaveHandlerFactory;
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use Magento\Framework\Session\Config\ConfigInterface;
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use Magento\Framework\Exception\SessionException;
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use Magento\Framework\App\Config\ScopeConfigInterface;
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use Magento\Store\Model\ScopeInterface;
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class SaveHandler extends \Magento\Framework\Session\SaveHandler
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{
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const REDIS_FALLBACK_HANDLER_CONFIG_XML = 'system/redis_fallback/handler';
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/**
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* Constructor
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*
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* @param SaveHandlerFactory $saveHandlerFactory
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* @param ConfigInterface $sessionConfig
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* @param string $default
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* @param ScopeConfigInterface $scopeConfig
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*/
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public function __construct(
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SaveHandlerFactory $saveHandlerFactory,
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ConfigInterface $sessionConfig,
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$default = self::DEFAULT_HANDLER,
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ScopeConfigInterface $scopeConfig
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) {
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$fallbackHandler = $scopeConfig->getValue(self::REDIS_FALLBACK_HANDLER_CONFIG_XML, ScopeInterface::SCOPE_STORE);
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if($fallbackHandler){
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$default = $fallbackHandler;
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}
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parent::__construct( $saveHandlerFactory, $sessionConfig, $default);
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}
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}

‎composer.json‎

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{
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"name": "kodbruket/module-redisfallback",
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"description": "Fallback Redis session to Db on failure",
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"type": "magento2-module",
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"license": [
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"proprietary"
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],
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"authors":[
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{
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"name":"Jimmy",
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"email":"phu@kodbruket.se"
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}
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],
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"require": {
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},
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"autoload": {
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"files": [
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"registration.php"
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],
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"psr-4": {
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"Kodbruket\\RedisFallback\\": ""
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}
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}
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}

‎etc/adminhtml/system.xml‎

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<?xml version="1.0"?>
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<!--
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/**
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* Copyright © Magento, Inc. All rights reserved.
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* See COPYING.txt for license details.
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*/
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-->
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<config xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xsi:noNamespaceSchemaLocation="urn:magento:module:Magento_Config:etc/system_file.xsd">
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<system>
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<section id="system">
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<group id="redis_fallback" translate="label" showInDefault="1" showInWebsite="0" showInStore="0" sortOrder="800">
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<label>Redis Fallback</label>
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<field id="handler" translate="label" type="select" sortOrder="0" showInDefault="1" showInWebsite="0" showInStore="0" canRestore="1">
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<label>Fallback Handler</label>
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<source_model>Kodbruket\RedisFallback\Model\System\Config\RedisHandler</source_model>
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</field>
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</group>
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</section>
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</system>
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</config>

‎etc/config.xml‎

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<?xml version="1.0"?>
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<config xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xsi:noNamespaceSchemaLocation="urn:magento:framework:Store/etc/config.xsd">
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<default>
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<system>
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<redis_fallback>
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<handler>db</handler>
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</redis_fallback>
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</system>
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</default>
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</config>

‎etc/di.xml‎

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<config xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xsi:noNamespaceSchemaLocation="urn:magento:framework:ObjectManager/etc/config.xsd">
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<preference for="Magento\Framework\Session\SaveHandler" type="Kodbruket\RedisFallback\Session\SaveHandler" />
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</config>

‎etc/module.xml‎

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<?xml version="1.0"?>
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<config xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xsi:noNamespaceSchemaLocation="urn:magento:framework:Module/etc/module.xsd">
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<module name="Kodbruket_RedisFallback" setup_version="1.0.0">
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<sequence>
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</sequence>
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</module>
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</config>

‎registration.php‎

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<?php
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use \Magento\Framework\Component\ComponentRegistrar;
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ComponentRegistrar::register(
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ComponentRegistrar::MODULE,
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'Kodbruket_RedisFallback',
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__DIR__
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);

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