Initial commit: CloudOps infrastructure platform

docker-compose/mautic-setup/mautic-backup-files/docroot/app/bundles/LeadBundle/Field/Helper/IndexHelper.php

@@ -0,0 +1,88 @@
+<?php
+
+declare(strict_types=1);
+
+namespace Mautic\LeadBundle\Field\Helper;
+
+use Doctrine\DBAL\Exception as DBALException;
+use Doctrine\ORM\EntityManager;
+use Mautic\LeadBundle\Entity\Lead;
+
+/**
+ * Helper for getting and counting indexes on lead table.
+ *
+ * @see Lead
+ */
+class IndexHelper
+{
+    public const MAX_COUNT_ALLOWED = 64;
+    /**
+     * @var bool|array<string>
+     */
+    private $indexedColumns = false;
+
+    /**
+     * Can be different from indexed column count when using multiple indexes on same table.
+     */
+    private int $indexCount = 0;
+
+    public function __construct(private EntityManager $entityManager)
+    {
+    }
+
+    /**
+     * @return array<string>|bool
+     */
+    public function getIndexedColumnNames()
+    {
+        $this->getIndexes();
+
+        return $this->indexedColumns;
+    }
+
+    public function getIndexCount(): int
+    {
+        $this->getIndexes();
+
+        return $this->indexCount;
+    }
+
+    public function getMaxCount(): int
+    {
+        return self::MAX_COUNT_ALLOWED;
+    }
+
+    public function isNewIndexAllowed(): bool
+    {
+        return $this->getIndexCount() < $this->getMaxCount();
+    }
+
+    /**
+     * Get indexes created on `leads` table.
+     *
+     * @see Lead
+     *
+     * @throws DBALException
+     */
+    private function getIndexes(): void
+    {
+        if (false !== $this->indexedColumns) {
+            // Query below performed
+            return;
+        }
+
+        $tableName = $this->entityManager->getClassMetadata(Lead::class)->getTableName();
+
+        $sql = "SHOW INDEXES FROM `$tableName`";
+
+        $stmt    = $this->entityManager->getConnection()->prepare($sql);
+        $indexes = $stmt->executeQuery()->fetchAllAssociative();
+
+        $this->indexedColumns = array_map(
+            fn ($index) => $index['Column_name'],
+            $indexes
+        );
+
+        $this->indexCount = count($indexes);
+    }
+}