compatibility for customers that already configured lazy laod

Author: Bohdan Berezhniy

Setup/Patch/Data/SaveDefaultLazyLoadMethod.php

@@ -0,0 +1,95 @@
+<?php
+/**
+ * Copyright © Magefan ([email protected]). All rights reserved.
+ * Please visit Magefan.com for license details (https://magefan.com/end-user-license-agreement).
+ *
+ * Glory to Ukraine! Glory to the heroes!
+ */
+
+declare(strict_types = 1);
+
+namespace Magefan\LazyLoad\Setup\Patch\Data;
+
+use Magento\Framework\Setup\Patch\DataPatchInterface;
+use Magento\Framework\Setup\ModuleDataSetupInterface;
+use Magefan\LazyLoad\Model\Config as Config;
+use Magento\Framework\App\Config\Storage\WriterInterface;
+use Magento\Framework\App\Config\ScopeConfigInterface;
+use Magefan\LazyLoad\Model\Config\Source\Method as LazyLoadMethod;
+use Magefan\LazyLoad\Model\Config\Source\BlocksToLazyLoad;
+
+class SaveDefaultLazyLoadMethod implements DataPatchInterface
+{
+    /**
+     * @var ModuleDataSetupInterface
+     */
+    private $moduleDataSetup;
+
+    /**
+     * @var Config
+     */
+    private $config;
+
+    /**
+     * @var WriterInterface
+     */
+    private $configWriter;
+
+    /**
+     * @param ModuleDataSetupInterface $moduleDataSetup
+     * @param Config $config
+     * @param WriterInterface $configWriter
+     */
+    public function __construct(
+        ModuleDataSetupInterface $moduleDataSetup,
+        Config $config,
+        WriterInterface $configWriter
+    ) {
+        $this->moduleDataSetup = $moduleDataSetup;
+        $this->config = $config;
+        $this->configWriter = $configWriter;
+    }
+
+    /**
+     * Set Default Lazy Load Method as JS to keep existing lazy load config for customers that configured lazy laod.
+     *
+     * @return void
+     */
+    public function apply()
+    {
+        $this->moduleDataSetup->startSetup();
+
+        $connection = $this->moduleDataSetup->getConnection();
+        $tableName = $this->moduleDataSetup->getTable('core_config_data');
+
+        if ($this->config->getBlocksInfo()) {
+            $query = $connection->select()
+                ->from($tableName, ['config_id', 'value'])
+                ->where('path = ?', Config::XML_PATH_LAZY_METHOD);
+
+            // if lazy load was installed previusly and lazy laod method not set yet, set js lazy load as a default method
+            if (!$connection->fetchAll($query)) {
+                $this->configWriter->save(Config::XML_PATH_LAZY_METHOD, LazyLoadMethod::JAVASCRIPT);
+                $this->configWriter->save(Config::XML_PATH_LAZY_BLOCKS_TO_LAZY_LOAD, BlocksToLazyLoad::SELECTED);
+            }
+        }
+
+        $this->moduleDataSetup->endSetup();
+    }
+
+    /**
+     * @return array|string[]
+     */
+    public static function getDependencies()
+    {
+        return [];
+    }
+
+    /**
+     * @return array|string[]
+     */
+    public function getAliases()
+    {
+        return [];
+    }
+}

composer.json

@@ -9,7 +9,7 @@
         "magefan/module-rocketjavascript": "Install Rocket JavaScript to optimize JS loading."
     },
     "type": "magento2-module",
-    "version": "2.0.23.1",
+    "version": "2.1.0",
     "authors": [
         {
             "name": "Magefan",