From a0c69efac61f815a4226d7742076a5215daaf14b Mon Sep 17 00:00:00 2001
From: Tigrov <rrr-r@ya.ru>
Date: Sun, 17 Dec 2023 09:50:44 +0700
Subject: [PATCH] Refactor `BaseActiveRecord::getDirtyAttributes()`

---
 src/BaseActiveRecord.php   | 42 ++++++++++--------------------
 tests/ActiveRecordTest.php | 52 ++++++++++++++++++++++++++++++++++++++
 2 files changed, 66 insertions(+), 28 deletions(-)

diff --git a/src/BaseActiveRecord.php b/src/BaseActiveRecord.php
index 7e7e2a91b..8452f7fb2 100644
--- a/src/BaseActiveRecord.php
+++ b/src/BaseActiveRecord.php
@@ -23,8 +23,10 @@
 
 use function array_combine;
 use function array_diff;
+use function array_diff_key;
 use function array_flip;
 use function array_intersect;
+use function array_intersect_key;
 use function array_key_exists;
 use function array_keys;
 use function array_map;
@@ -181,40 +183,24 @@ public function getOldAttribute(string $name): mixed
     public function getDirtyAttributes(array $names = null): array
     {
         if ($names === null) {
-            $names = $this->attributes();
+            $attributes = $this->attributes;
+        } else {
+            $attributes = array_intersect_key($this->attributes, array_flip($names));
         }
 
-        $names = array_flip($names);
-        $attributes = [];
-
         if ($this->oldAttributes === null) {
-            /**
-             * @var string $name
-             * @var mixed $value
-             */
-            foreach ($this->attributes as $name => $value) {
-                if (isset($names[$name])) {
-                    /** @psalm-var mixed */
-                    $attributes[$name] = $value;
-                }
-            }
-        } else {
-            /**
-             * @var string $name
-             * @var mixed $value
-             */
-            foreach ($this->attributes as $name => $value) {
-                if (
-                    isset($names[$name])
-                    && (!array_key_exists($name, $this->oldAttributes) || $value !== $this->oldAttributes[$name])
-                ) {
-                    /** @psalm-var mixed */
-                    $attributes[$name] = $value;
-                }
+            return $attributes;
+        }
+
+        $result = array_diff_key($attributes, $this->oldAttributes);
+
+        foreach (array_diff_key($attributes, $result) as $name => $value) {
+            if ($value !== $this->oldAttributes[$name]) {
+                $result[$name] = $value;
             }
         }
 
-        return $attributes;
+        return $result;
     }
 
     public function getOldAttributes(): array
diff --git a/tests/ActiveRecordTest.php b/tests/ActiveRecordTest.php
index 903ee53ce..a85d2bbcf 100644
--- a/tests/ActiveRecordTest.php
+++ b/tests/ActiveRecordTest.php
@@ -836,4 +836,56 @@ public function testToArrayForArrayable(): void
             ]),
         );
     }
+
+    public function testGetDirtyAttributesOnNewRecord(): void
+    {
+        $this->checkFixture($this->db, 'customer');
+
+        $customer = new Customer($this->db);
+
+        $this->assertSame([], $customer->getDirtyAttributes());
+
+        $customer->setAttribute('name', 'Adam');
+        $customer->setAttribute('email', 'adam@example.com');
+        $customer->setAttribute('address', null);
+
+        $this->assertEquals(
+            ['name' => 'Adam', 'email' => 'adam@example.com', 'address' => null],
+            $customer->getDirtyAttributes()
+        );
+        $this->assertEquals(
+            ['email' => 'adam@example.com', 'address' => null],
+            $customer->getDirtyAttributes(['id', 'email', 'address', 'status']),
+        );
+
+        $this->assertTrue($customer->save());
+        $this->assertSame([], $customer->getDirtyAttributes());
+
+        $customer->setAttribute('address', '');
+
+        $this->assertSame(['address' => ''], $customer->getDirtyAttributes());
+    }
+
+    public function testGetDirtyAttributesAfterFind(): void
+    {
+        $this->checkFixture($this->db, 'customer');
+
+        $customerQuery = new ActiveQuery(Customer::class, $this->db);
+        $customer = $customerQuery->findOne(1);
+
+        $this->assertSame([], $customer->getDirtyAttributes());
+
+        $customer->setAttribute('name', 'Adam');
+        $customer->setAttribute('email', 'adam@example.com');
+        $customer->setAttribute('address', null);
+
+        $this->assertEquals(
+            ['name' => 'Adam', 'email' => 'adam@example.com', 'address' => null],
+            $customer->getDirtyAttributes(),
+        );
+        $this->assertEquals(
+            ['email' => 'adam@example.com', 'address' => null],
+            $customer->getDirtyAttributes(['id', 'email', 'address', 'status']),
+        );
+    }
 }