Fix '0' being seen as empty value bug in AbstractEntity

CHANGELOG.md

@@ -1,5 +1,9 @@
 # Parable PHP ORM
 
+## 0.9.1
+
+- When using typed properties and trying to set a value of '0', untyping it caused it to become a string value. This would end up being seen as an 'empty' value and removed from the value set.
+
 ## 0.9.0
 
 - `Transaction` has been added. Now you can start, commit or roll back a transaction very easily. Simply call `Transaction::begin()`, `Transaction::commit()` or `Transaction::rollback()`.

src/AbstractEntity.php

@@ -105,7 +105,8 @@ public function toArrayWithoutEmptyValues(): array
         $array = $this->toArray();
 
         foreach ($array as $key => $value) {
-            if (empty($value) && $value !== 0) {
+            // We don't want values 0 or '0' to be seen as empty, so we ctype_digit it
+            if (empty($value) && !ctype_digit($value)) {
                 unset($array[$key]);
             }
         }

tests/EntityTest.php

@@ -148,6 +148,20 @@ public function testToArrayWithout(): void
         );
     }
 
+    public function testToArrayWithoutSees0AsNonEmpty(): void
+    {
+        $entity = new TestEntity();
+
+        $entity->setName('0');
+
+        self::assertSame(
+            [
+                'name' => '0',
+            ],
+            $entity->toArrayWithoutEmptyValues()
+        );
+    }
+
     public function testCreateValidEntityAndToArrayWithoutEmptyValues(): void
     {
         $entity = new TestEntity();