Added test for bug 187 (#206)

Author: EdaCZ

tests/Database/Table/bugs/bug187.phpt

@@ -0,0 +1,40 @@
+<?php
+
+/**
+ * Test: bug 187
+ * @dataProvider? ../../databases.ini mysql
+ */
+
+declare(strict_types=1);
+
+use Nette\Database\Table\ActiveRow;
+use Tester\Assert;
+
+require __DIR__ . '/../../connect.inc.php';
+
+Nette\Database\Helpers::loadFromFile($connection, __DIR__ . "/../../files/{$driverName}-nette_test5.sql");
+
+foreach ([true, false] as $published) {
+	if ($published) {
+		$where = '(:PhotoNonPublic.number IS NULL)';
+	} else {
+		$where = '(:PhotoNonPublic.number IS NOT NULL)';
+	}
+
+	$result = $context->table('Photo')->where($where);
+
+	foreach ($result as $photoRow) {
+		/** @var ActiveRow $photoRow */
+		$related = $photoRow->related('PhotoNonPublic');
+
+		if ($related->count() != 0) {
+			$related->fetch()->toArray();
+		}
+	}
+
+	// destructing -> saveCacheState
+	$result->__destruct();
+	$related->__destruct();
+}
+
+Assert::true(true);

tests/Database/files/mysql-nette_test5.sql

@@ -0,0 +1,18 @@
+DROP DATABASE IF EXISTS nette_test;
+CREATE DATABASE nette_test;
+USE nette_test;
+
+CREATE TABLE `Photo` (
+  `number` int(4) unsigned NOT NULL AUTO_INCREMENT,
+  PRIMARY KEY (`number`)
+) ENGINE=InnoDB DEFAULT CHARSET=utf8mb4 COLLATE=utf8mb4_czech_ci;
+
+INSERT INTO `Photo` (`number`) VALUES (1), (2), (3);
+
+CREATE TABLE `PhotoNonPublic` (
+  `number` int(4) unsigned NOT NULL AUTO_INCREMENT,
+  PRIMARY KEY (`number`),
+  CONSTRAINT `PhotoNonPublic_ibfk_1` FOREIGN KEY (`number`) REFERENCES `Photo` (`number`) ON DELETE CASCADE ON UPDATE CASCADE
+) ENGINE=InnoDB DEFAULT CHARSET=utf8mb4 COLLATE=utf8mb4_czech_ci;
+
+INSERT INTO `PhotoNonPublic` (`number`) VALUES (2), (3);