Input
Required If
Rule `required_if`: Requires the field if another field has expected value.
Usage
Conditional requirement based on another field.
$schema = \Lemonade\Framework\Validation\ValidationSchema::create()
->field('field', 'Field')
->requiredIf('department', 'sales')
->end();
$result = $validator->validate($payload, $schema);
Stable rule name
required_if for translations, registry lookup and per-rule messages.
Group
Required / Conditional