[Athena] Add less than filter

src/Parthenon/Athena/Filters/LessThanFilter.php

@@ -0,0 +1,88 @@
+<?php
+
+declare(strict_types=1);
+
+/*
+ * Copyright Humbly Arrogant Software Limited 2020-2023.
+ *
+ * Use of this software is governed by the Business Source License included in the LICENSE file and at https://getparthenon.com/docs/next/license.
+ *
+ * Change Date: 26.06.2026 ( 3 years after 2.2.0 release )
+ *
+ * On the date above, in accordance with the Business Source License, use of this software will be governed by the open source license specified in the LICENSE file.
+ */
+
+namespace App\Parthenon\Athena\Filters;
+
+use Doctrine\ORM\Query;
+use Doctrine\ORM\QueryBuilder;
+use Parthenon\Athena\Filters\DoctrineFilterInterface;
+use Parthenon\Athena\Filters\FilterInterface;
+use Parthenon\Athena\Filters\QueryBuilderTrait;
+
+class LessThanFilter implements DoctrineFilterInterface
+{
+    use QueryBuilderTrait;
+
+    public const NAME = 'less_than';
+
+    protected string $fieldName;
+
+    private $data;
+
+    public function modifyQueryBuilder(QueryBuilder $queryBuilder)
+    {
+        if (!$this->data) {
+            return;
+        }
+        [$alias, $fieldName] = $this->readyQueryBuilderForAliasAndFieldName($queryBuilder);
+        $queryBuilder->andWhere($alias.'.'.$fieldName.' < :'.$this->getSafeFieldName());
+    }
+
+    public function modifyQuery(Query $query)
+    {
+        if (!$this->data) {
+            return;
+        }
+        $query->setParameter(':'.$this->getSafeFieldName(), $this->data);
+    }
+
+    public function getName(): string
+    {
+        return static::NAME;
+    }
+
+    public function setData($data): FilterInterface
+    {
+        $this->data = $data;
+
+        return $this;
+    }
+
+    public function setFieldName(string $fieldName): FilterInterface
+    {
+        $this->fieldName = $fieldName;
+
+        return $this;
+    }
+
+    public function getFieldName(): string
+    {
+        return $this->fieldName;
+    }
+
+    public function getHeaderName(): string
+    {
+        return ucwords(str_replace('_', ' ', $this->fieldName));
+    }
+
+    public function getData()
+    {
+        return $this->data;
+    }
+
+    public function hasData(): bool
+    {
+        return isset($this->data);
+    }
+}