From caf8b7bd5ab71fd009459fa34f5ddd19c0139e56 Mon Sep 17 00:00:00 2001
From: Johannes Meyer <johannes.meyer@icinga.com>
Date: Thu, 22 Feb 2024 16:50:14 +0100
Subject: [PATCH] wip

---
 src/Compat/FilterProcessor.php |  7 +++++--
 tests/FilterProcessorTest.php  | 38 ++++++++++++++++++++++++++++++++++
 2 files changed, 43 insertions(+), 2 deletions(-)

diff --git a/src/Compat/FilterProcessor.php b/src/Compat/FilterProcessor.php
index 7956898..0759c24 100644
--- a/src/Compat/FilterProcessor.php
+++ b/src/Compat/FilterProcessor.php
@@ -258,8 +258,11 @@ protected function requireAndResolveFilterColumns(Filter\Rule $filter, Query $qu
                     }
                 }
 
-                if (! empty($baseFilters) || ! empty($generalRules)) {
-                    $subQueryFilters[] = [$baseFilters ?: $generalRules, $count, false];
+                if (! empty($baseFilters)) {
+                    $subQueryFilters[] = [$baseFilters, $count, false];
+                } elseif (! empty($generalRules) && empty($subQueryFilters)) {
+                    $subQueryFilters[] = [$generalRules, null, false];
+                    $generalRules = [];
                 }
 
                 foreach ($subQueryFilters as list($filters, $count, $negate)) {
diff --git a/tests/FilterProcessorTest.php b/tests/FilterProcessorTest.php
index c80c0c1..a3b56df 100644
--- a/tests/FilterProcessorTest.php
+++ b/tests/FilterProcessorTest.php
@@ -4,10 +4,14 @@
 
 use ipl\Orm\Compat\FilterProcessor;
 use ipl\Orm\Query;
+use ipl\Sql\Connection;
 use ipl\Stdlib\Filter;
+use ipl\Tests\Orm\Lib\DataProviders;
 
 class FilterProcessorTest extends \PHPUnit\Framework\TestCase
 {
+    use DataProviders;
+
     public function testUnequalDoesNotOverrideUnlike()
     {
         $query = new Query();
@@ -62,4 +66,38 @@ public function testUnequalDoesNotOverrideUnlike()
             $where[1][0][1][1][1]['(car.id NOT IN (?) OR car.id IS NULL)']->getWhere()
         );
     }
+
+    /**
+     * @dataProvider databases
+     */
+    public function testUnequalTargetingAToManyRelationProducesResults(Connection $db)
+    {
+        $db->insert('car', ['id' => 1, 'model_name' => 'foo', 'manufacturer' => 'bar']);
+        $db->insert('passenger', ['id' => 1, 'car_id' => 1, 'name' => 'foo', 'sex' => 'bar']);
+        $db->insert('passenger', ['id' => 2, 'car_id' => 1, 'name' => 'bar', 'sex' => 'foo']);
+        $db->insert('car', ['id' => 2, 'model_name' => 'bar', 'manufacturer' => 'foo']);
+        $db->insert('passenger', ['id' => 3, 'car_id' => 2, 'name' => 'foo', 'sex' => 'oof']);
+
+        $car = Car::on($db);
+        $car->columns(['car.model_name']);
+        $car->filter(Filter::all(
+            Filter::equal('passenger.name', 'bar'),
+            Filter::unequal('passenger.sex', 'foo')
+        ));
+
+        $this->assertSame(1, $car->count());
+        $this->assertSame('bar', $car->first()->model_name);
+    }
+
+    protected function createSchema(Connection $db, string $driver): void
+    {
+        $db->exec('CREATE TABLE car (id INT PRIMARY KEY, model_name VARCHAR(255), manufacturer VARCHAR(255))');
+        $db->exec('CREATE TABLE passenger (id INT PRIMARY KEY, car_id INT, name VARCHAR(255), sex VARCHAR(255))');
+    }
+
+    protected function dropSchema(Connection $db, string $driver): void
+    {
+        $db->exec('DROP TABLE IF EXISTS passenger');
+        $db->exec('DROP TABLE IF EXISTS car');
+    }
 }