Primo rilascio

backend/vendor/doctrine/dbal/src/SQL/Builder/DefaultSelectSQLBuilder.php

@@ -0,0 +1,94 @@
+<?php
+
+declare(strict_types=1);
+
+namespace Doctrine\DBAL\SQL\Builder;
+
+use Doctrine\DBAL\Exception;
+use Doctrine\DBAL\Platforms\AbstractPlatform;
+use Doctrine\DBAL\Platforms\Exception\NotSupported;
+use Doctrine\DBAL\Query\ForUpdate\ConflictResolutionMode;
+use Doctrine\DBAL\Query\SelectQuery;
+
+use function count;
+use function implode;
+
+final class DefaultSelectSQLBuilder implements SelectSQLBuilder
+{
+    /** @internal The SQL builder should be instantiated only by database platforms. */
+    public function __construct(
+        private readonly AbstractPlatform $platform,
+        private readonly ?string $forUpdateSQL,
+        private readonly ?string $skipLockedSQL,
+    ) {
+    }
+
+    /** @throws Exception */
+    public function buildSQL(SelectQuery $query): string
+    {
+        $parts = ['SELECT'];
+
+        if ($query->isDistinct()) {
+            $parts[] = 'DISTINCT';
+        }
+
+        $parts[] = implode(', ', $query->getColumns());
+
+        $from = $query->getFrom();
+
+        if (count($from) > 0) {
+            $parts[] = 'FROM ' . implode(', ', $from);
+        }
+
+        $where = $query->getWhere();
+
+        if ($where !== null) {
+            $parts[] = 'WHERE ' . $where;
+        }
+
+        $groupBy = $query->getGroupBy();
+
+        if (count($groupBy) > 0) {
+            $parts[] = 'GROUP BY ' . implode(', ', $groupBy);
+        }
+
+        $having = $query->getHaving();
+
+        if ($having !== null) {
+            $parts[] = 'HAVING ' . $having;
+        }
+
+        $orderBy = $query->getOrderBy();
+
+        if (count($orderBy) > 0) {
+            $parts[] = 'ORDER BY ' . implode(', ', $orderBy);
+        }
+
+        $sql   = implode(' ', $parts);
+        $limit = $query->getLimit();
+
+        if ($limit->isDefined()) {
+            $sql = $this->platform->modifyLimitQuery($sql, $limit->getMaxResults(), $limit->getFirstResult());
+        }
+
+        $forUpdate = $query->getForUpdate();
+
+        if ($forUpdate !== null) {
+            if ($this->forUpdateSQL === null) {
+                throw NotSupported::new('FOR UPDATE');
+            }
+
+            $sql .= ' ' . $this->forUpdateSQL;
+
+            if ($forUpdate->getConflictResolutionMode() === ConflictResolutionMode::SKIP_LOCKED) {
+                if ($this->skipLockedSQL === null) {
+                    throw NotSupported::new('SKIP LOCKED');
+                }
+
+                $sql .= ' ' . $this->skipLockedSQL;
+            }
+        }
+
+        return $sql;
+    }
+}