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[6.x] Let to_json output null for null values #15847

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mynetx wants to merge 2 commits into from
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[6.x] Let to_json output null for null values #15847

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db490a2
Let to_json output null for null values
mynetx Nov 11, 2026
15ff97e
Cover more to_json null cases
mynetx Nov 11, 2026
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2 changes: 2 additions & 0 deletions src/View/Antlers/Language/Runtime/ModifierManager.php
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Original file line number Diff line number Diff line change
Expand Up @@ -27,6 +27,8 @@ class ModifierManager
*/
protected static $nullAwareModifiers = [
'bool_string',
'json',
'to_json',
];

public static function isModifier(ParameterNode $node)
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17 changes: 17 additions & 0 deletions tests/Antlers/Runtime/CoreModifiersTest.php
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Expand Up @@ -623,6 +623,23 @@ public function test_bool_string_outputs_false_for_null()
$this->assertSame('FALSE', $this->renderString('{{ empty_field | bool_string | upper }}', $data, true));
$this->assertSame('true', $this->renderString('{{ filled_field | bool_string }}', $data, true));
}

public function test_to_json_outputs_null_for_null()
{
$data = [
'bare' => null,
'empty_field' => new Value(null, 'empty_field', new Text),
'filled_field' => new Value('yes', 'filled_field', new Text),
];

$this->assertSame('null', $this->renderString('{{ bare | to_json }}', $data, true));
$this->assertSame('null', $this->renderString('{{ empty_field | to_json }}', $data, true));
$this->assertSame('null', $this->renderString('{{ empty_field | json }}', $data, true));
$this->assertSame('null', $this->renderString('{{ missing | to_json }}', $data, true));
$this->assertSame('null', $this->renderString("{{ empty_field | to_json('pretty') }}", $data, true));
$this->assertSame('NULL', $this->renderString('{{ empty_field | to_json | upper }}', $data, true));
$this->assertSame('"yes"', $this->renderString('{{ filled_field | to_json }}', $data, true));
}
}

class SimpleEntryObject implements Arrayable
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