Validator::formatMessage() Fixed using label placeholder in validation rule with Html label (#235)

Author: JanMikes

src/Forms/Validator.php

@@ -69,9 +69,12 @@ public static function formatMessage(Rule $rule, bool $withValue = true)
 			static $i = -1;
 			switch ($m[1]) {
 				case 'name': return $rule->control->getName();
-				case 'label': return $rule->control instanceof Controls\BaseControl
-					? rtrim($rule->control->translate($rule->control->getCaption()), ':')
-					: null;
+				case 'label':
+					if ($rule->control instanceof Controls\BaseControl) {
+						$caption = $rule->control->translate($rule->control->getCaption());
+						return rtrim($caption instanceof Nette\Utils\Html ? $caption->getText() : $caption, ':');
+					}
+					return '';
 				case 'value': return $withValue ? $rule->control->getValue() : $m[0];
 				default:
 					$args = is_array($rule->arg) ? $rule->arg : [$rule->arg];

tests/Forms/Controls.TextInput.render.phpt

@@ -62,6 +62,18 @@ test(function () { // Html with translator
 });
 
 
+test(function () { // Html with label placeholder in validation rule message
+	$form = new Form;
+	$input = $form->addText('text', Html::el('b', 'Label:'))
+		->addRule(Form::REQUIRED, 'Please fill in %label');
+
+	Assert::same('<label for="frm-text"><b>Label:</b></label>', (string) $input->getLabel());
+	Assert::same('<label for="frm-text"><b>Another label</b></label>', (string) $input->getLabel(Html::el('b', 'Another label')));
+	Assert::type(Html::class, $input->getControl());
+	Assert::same('<input type="text" name="text" id="frm-text" required data-nette-rules=\'[{"op":":filled","msg":"Please fill in Label"}]\'>', (string) $input->getControl());
+});
+
+
 test(function () { // password
 	$form = new Form;
 	$input = $form->addPassword('password')