ACP2E-1840: clear cache for pages that contain modified blocks.

Author: alzota

app/code/Magento/Cms/Model/ResourceModel/Page/Query/PageIdsList.php

@@ -0,0 +1,95 @@
+<?php
+/**
+ * Copyright © Magento, Inc. All rights reserved.
+ * See COPYING.txt for license details.
+ */
+declare(strict_types=1);
+
+namespace Magento\Cms\Model\ResourceModel\Page\Query;
+
+use Magento\Framework\App\ResourceConnection;
+use Magento\Framework\DB\Adapter\AdapterInterface;
+
+class PageIdsList
+{
+    /**
+     * @var ResourceConnection
+     */
+    private $resourceConnection;
+
+    /**
+     * @var AdapterInterface
+     */
+    private $connection;
+
+    /**
+     * @param ResourceConnection $resourceConnection
+     */
+    public function __construct(ResourceConnection $resourceConnection)
+    {
+        $this->resourceConnection = $resourceConnection;
+    }
+
+    /**
+     * Returns connection.
+     *
+     * @return AdapterInterface
+     */
+    private function getConnection(): AdapterInterface
+    {
+        if (!$this->connection) {
+            $this->connection = $this->resourceConnection->getConnection();
+        }
+
+        return $this->connection;
+    }
+
+    /**
+     * Get all pages that contain blocks identified by ids or identifiers
+     *
+     * @param array $ids
+     * @return array
+     */
+    public function execute(array $ids = []): array
+    {
+        $select = $this->getConnection()->select()
+            ->from(
+                ['main_table' => $this->resourceConnection->getTableName('cms_page')],
+                ['main_table.page_id']
+            );
+        if (count($ids)) {
+            foreach ($ids as $id) {
+                $select->orWhere(
+                    "MATCH (title, meta_keywords, meta_description, identifier, content) AGAINST ('block_id=\"$id\"')"
+                );
+            }
+            $identifiers = $this->getBlockIdentifiersByIds($ids);
+            foreach ($identifiers as $identifier) {
+                $select->orWhere(
+                    "MATCH (title, meta_keywords, meta_description, identifier, content) AGAINST ('block_id=\"$identifier\"')"
+                );
+            }
+        } else {
+            $select->where("MATCH (title, meta_keywords, meta_description, identifier, content) AGAINST ('block_id=')");
+        }
+
+        return $this->connection->fetchCol($select);
+    }
+
+    /**
+     * Get blocks identifiers based on ids
+     *
+     * @param array $ids
+     * @return array
+     */
+    private function getBlockIdentifiersByIds(array $ids): array
+    {
+        $select = $this->getConnection()->select()
+            ->from(
+                ['main_table' => $this->resourceConnection->getTableName('cms_block')],
+                ['main_table.identifier']
+            )->where('block_id IN (?)', $ids, \Zend_Db::INT_TYPE);
+
+        return $this->connection->fetchCol($select);
+    }
+}