Merge pull request #14 from codeigniter4/nulls

Helper Nulls

Author: MGatner

src/Helpers/setting_helper.php

@@ -17,7 +17,7 @@ function setting(?string $key = null, $value = null)
         }
 
         // Getting the value?
-        if ($value === null) {
+        if (count(func_get_args()) === 1) {
             return $setting->get($key);
         }
 

tests/HelperTest.php

@@ -33,6 +33,20 @@ public function testThrowsExceptionWithInvalidField()
         setting('Foobar');
     }
 
+    public function testSetsNull()
+    {
+        setting('Foo.bam', null);
+
+        $this->seeInDatabase($this->table, [
+            'class' => 'Foo',
+            'key'   => 'bam',
+            'value' => null,
+            'type'  => 'NULL',
+        ]);
+
+        $this->assertNull(setting('Foo.bam'));
+    }
+
     public function testReturnsValueDotArray()
     {
         $this->hasInDatabase($this->table, [