fix(query): DateTime params ignore configured timezone

lib/Database/Connection.php

@@ -53,6 +53,11 @@ public function __construct(DatabaseConfig $config)
         $this->queryLogger = null;
     }
 
+    public function getConfig(): DatabaseConfig
+    {
+        return $this->config;
+    }
+
     /**
      * Sets the query logger on this connection instance.
      *

lib/Database/Query.php

@@ -479,7 +479,7 @@ protected function preProcessParam($paramValue)
         if ($paramValue instanceof \DateTime) {
             // Format DateTime to database format / UTC
             $dt = clone $paramValue;
-            $dt->setTimezone(new DateTimeZone('UTC'));
+            $dt->setTimezone(new DateTimeZone($this->connection->getConfig()->timezone));
             return $dt->format(Column::DATE_TIME_FORMAT);
         }
 

tests/Database/TimezoneTest.php

@@ -0,0 +1,109 @@
+<?php
+
+namespace Softwarepunt\Instarecord\Tests\Database;
+
+use PHPUnit\Framework\TestCase;
+use SoftwarePunt\Instarecord\Instarecord;
+use SoftwarePunt\Instarecord\Tests\Samples\User;
+use SoftwarePunt\Instarecord\Tests\Testing\TestDatabaseConfig;
+
+class TimezoneTest extends TestCase
+{
+    /**
+     * @runInSeparateProcess
+     */
+    public function testTimezoneWriteConsistency()
+    {
+        if (!date_default_timezone_set("Europe/Amsterdam"))
+            $this->markTestSkipped('Failed to set default PHP timezone');
+
+        Instarecord::config(new TestDatabaseConfig());
+        Instarecord::config()->timezone = "Europe/Amsterdam";
+
+        $jan1st = new \DateTime("2023-01-01 00:00:00");
+
+        $user = new User();
+        $user->userName = "TimeZoneTest";
+        $user->joinDate = $jan1st;
+        $user->save();
+
+        $userRefetch = User::fetch($user->id);
+
+        $this->assertSame(
+            "2023-01-01 00:00:00",
+            $userRefetch->joinDate->format('Y-m-d H:i:s')
+        );
+    }
+
+    /**
+     * @depends testTimezoneWriteConsistency
+     * @runInSeparateProcess
+     */
+    public function testTimezoneQueryConsistency()
+    {
+        if (!date_default_timezone_set("Europe/Amsterdam"))
+            $this->markTestSkipped('Failed to set default PHP timezone');
+
+        Instarecord::config(new TestDatabaseConfig());
+        Instarecord::config()->timezone = "Europe/Amsterdam";
+
+        $jan1st = new \DateTime("2023-01-01 00:00:00");
+
+        $query = User::query()->where('join_date = ?', $jan1st);
+
+        $queryString = $query->createStatementText();
+        $queryParams = $query->getBoundParametersForGeneratedStatement();
+
+        $this->assertEquals('SELECT * FROM users WHERE (join_date = ?);', $queryString);
+        $this->assertEquals('2023-01-01 00:00:00', $queryParams[0],
+            "Query date/time should automatically adjust to database timezone");
+    }
+
+    /**
+     * @depends testTimezoneWriteConsistency
+     * @runInSeparateProcess
+     */
+    public function testTimezoneQueryInconsistency_Up()
+    {
+        if (!date_default_timezone_set("UTC"))
+            $this->markTestSkipped('Failed to set default PHP timezone');
+
+        Instarecord::config(new TestDatabaseConfig());
+        Instarecord::config()->timezone = "Europe/Amsterdam";
+
+        $jan1st = new \DateTime("2023-01-01 00:00:00");
+
+        $query = User::query()->where('join_date = ?', $jan1st);
+
+        $queryString = $query->createStatementText();
+        $queryParams = $query->getBoundParametersForGeneratedStatement();
+
+        $this->assertEquals('SELECT * FROM users WHERE (join_date = ?);', $queryString);
+        $this->assertEquals('2023-01-01 01:00:00', $queryParams[0],
+            "Query date/time should automatically adjust to database timezone");
+    }
+
+    /**
+     * @depends testTimezoneWriteConsistency
+     * @runInSeparateProcess
+     */
+    public function testTimezoneQueryInconsistency_Down()
+    {
+        if (!date_default_timezone_set("Europe/Amsterdam"))
+            $this->markTestSkipped('Failed to set default PHP timezone');
+
+        Instarecord::config(new TestDatabaseConfig());
+        Instarecord::config()->timezone = "UTC";
+
+        $jan1st = new \DateTime("2023-01-01 00:00:00");
+
+        $query = User::query()->where('join_date = ?', $jan1st);
+
+        $queryString = $query->createStatementText();
+        $queryParams = $query->getBoundParametersForGeneratedStatement();
+
+        $this->assertEquals('SELECT * FROM users WHERE (join_date = ?);', $queryString);
+        $this->assertEquals('2022-12-31 23:00:00', $queryParams[0],
+            "Query date/time should automatically adjust to database timezone");
+    }
+}