Add tests

tests/Driver/Pgsql/ActiveRecordTest.php

@@ -7,6 +7,9 @@
 use ArrayAccess;
 use Traversable;
 use Yiisoft\ActiveRecord\ActiveQuery;
+use Yiisoft\ActiveRecord\ArArrayHelper;
+use Yiisoft\ActiveRecord\Tests\Driver\Pgsql\Stubs\Item;
+use Yiisoft\ActiveRecord\Tests\Driver\Pgsql\Stubs\Promotion;
 use Yiisoft\ActiveRecord\Tests\Driver\Pgsql\Stubs\Type;
 use Yiisoft\ActiveRecord\Tests\Stubs\ActiveRecord\ArrayAndJsonTypes;
 use Yiisoft\ActiveRecord\Tests\Stubs\ActiveRecord\Beta;
@@ -441,4 +444,33 @@ public function testToArrayWithClosure(): void
             $customer->toArray(),
         );
     }
+
+    public function testRelationViaArray()
+    {
+        $this->checkFixture($this->db, 'promotion');
+
+        $promotionQuery = new ActiveQuery(Promotion::class, $this->db);
+        /** @var Promotion[] $promotions */
+        $promotions = $promotionQuery->with('items')->all();
+
+        $this->assertSame([1, 2], ArArrayHelper::getColumn($promotions[0]->getItems(), 'id'));
+        $this->assertSame([3, 4, 5], ArArrayHelper::getColumn($promotions[1]->getItems(), 'id'));
+        $this->assertSame([1, 3], ArArrayHelper::getColumn($promotions[2]->getItems(), 'id'));
+        $this->assertCount(0, $promotions[3]->getItems());
+
+        /** Test inverse relation */
+        foreach ($promotions as $promotion) {
+            foreach ($promotion->getItems() as $item) {
+                $this->assertTrue($item->isRelationPopulated('promotions'));
+            }
+        }
+
+        $this->assertSame([1, 3], ArArrayHelper::getColumn($promotions[0]->getItems()[0]->getPromotions(), 'id'));
+        $this->assertSame([1], ArArrayHelper::getColumn($promotions[0]->getItems()[1]->getPromotions(), 'id'));
+        $this->assertSame([2, 3], ArArrayHelper::getColumn($promotions[1]->getItems()[0]->getPromotions(), 'id'));
+        $this->assertSame([2], ArArrayHelper::getColumn($promotions[1]->getItems()[1]->getPromotions(), 'id'));
+        $this->assertSame([2], ArArrayHelper::getColumn($promotions[1]->getItems()[2]->getPromotions(), 'id'));
+        $this->assertSame([1, 3], ArArrayHelper::getColumn($promotions[2]->getItems()[0]->getPromotions(), 'id'));
+        $this->assertSame([2, 3], ArArrayHelper::getColumn($promotions[2]->getItems()[1]->getPromotions(), 'id'));
+    }
 }

tests/Driver/Pgsql/Stubs/Item.php

@@ -0,0 +1,27 @@
+<?php
+
+declare(strict_types=1);
+
+namespace Yiisoft\ActiveRecord\Tests\Driver\Pgsql\Stubs;
+
+use Yiisoft\ActiveRecord\ActiveQueryInterface;
+
+/**
+ * Class Item.
+ */
+final class Item extends \Yiisoft\ActiveRecord\Tests\Stubs\ActiveRecord\Item
+{
+    public function relationQuery(string $name): ActiveQueryInterface
+    {
+        return match ($name) {
+            'promotions' => $this->hasMany(Promotion::class, ['item_ids' => 'id']),
+            default => parent::relationQuery($name),
+        };
+    }
+
+    /** @return Promotion[] */
+    public function getPromotions(): array
+    {
+        return $this->relation('promotions');
+    }
+}

tests/Driver/Pgsql/Stubs/Promotion.php

@@ -0,0 +1,35 @@
+<?php
+
+declare(strict_types=1);
+
+namespace Yiisoft\ActiveRecord\Tests\Driver\Pgsql\Stubs;
+
+use Yiisoft\ActiveRecord\ActiveQueryInterface;
+use Yiisoft\ActiveRecord\ActiveRecord;
+
+final class Promotion extends ActiveRecord
+{
+    public int $id;
+    /** @var int[] $item_ids */
+    public array $item_ids;
+    public string $title;
+
+    public function getTableName(): string
+    {
+        return '{{%promotion}}';
+    }
+
+    public function relationQuery(string $name): ActiveQueryInterface
+    {
+        return match ($name) {
+            'items' => $this->hasMany(Item::class, ['id' => 'item_ids'])->inverseOf('promotions'),
+            default => parent::relationQuery($name),
+        };
+    }
+
+    /** @return Item[] */
+    public function getItems(): array
+    {
+        return $this->relation('items');
+    }
+}

tests/Stubs/ActiveRecord/Item.php

@@ -11,7 +11,7 @@
 /**
  * Class Item.
  */
-final class Item extends ActiveRecord
+class Item extends ActiveRecord
 {
     protected int $id;
     protected string $name;

tests/data/pgsql.sql

@@ -28,6 +28,7 @@ DROP TABLE IF EXISTS "employee" CASCADE;
 DROP TABLE IF EXISTS "department" CASCADE;
 DROP TABLE IF EXISTS "alpha" CASCADE;
 DROP TABLE IF EXISTS "beta" CASCADE;
+DROP TABLE IF EXISTS "promotion" CASCADE;
 DROP VIEW IF EXISTS "animal_view" CASCADE;
 DROP TABLE IF EXISTS "T_constraints_4" CASCADE;
 DROP TABLE IF EXISTS "T_constraints_3" CASCADE;
@@ -224,6 +225,12 @@ CREATE TABLE "beta" (
   PRIMARY KEY (id)
 );
 
+CREATE TABLE "promotion" (
+  id serial primary key,
+  item_ids integer[] not null,
+  title varchar(126) not null
+);
+
 CREATE VIEW "animal_view" AS SELECT * FROM "animal";
 
 INSERT INTO "animal" (type) VALUES ('Yiisoft\ActiveRecord\Tests\Stubs\ActiveRecord\Cat');
@@ -302,6 +309,11 @@ INSERT INTO "beta" (id, alpha_string_identifier) VALUES (6, '2b');
 INSERT INTO "beta" (id, alpha_string_identifier) VALUES (7, '2b');
 INSERT INTO "beta" (id, alpha_string_identifier) VALUES (8, '02');
 
+INSERT INTO "promotion" (item_ids, title) VALUES ('{1,2}', 'Discounted items');
+INSERT INTO "promotion" (item_ids, title) VALUES ('{3,4,5}', 'New arrivals');
+INSERT INTO "promotion" (item_ids, title) VALUES ('{1,3}', 'Free shipping');
+INSERT INTO "promotion" (item_ids, title) VALUES ('{}', 'Free!');
+
 /**
  * (Postgres-)Database Schema for validator tests
  */