BaseControl: supports setHtmlAttribute('name')

Author: dg

src/Forms/Controls/BaseControl.php

@@ -147,7 +147,7 @@ protected function getHttpData($type, string $htmlTail = null)
 	 */
 	public function getHtmlName(): string
 	{
-		return Nette\Forms\Helpers::generateHtmlName($this->lookupPath(Form::class));
+		return $this->control->name ?? Nette\Forms\Helpers::generateHtmlName($this->lookupPath(Form::class));
 	}
 
 
@@ -347,6 +347,9 @@ public function getHtmlId()
 	public function setHtmlAttribute(string $name, $value = true)
 	{
 		$this->control->$name = $value;
+		if ($name === 'name' && ($form = $this->getForm(false)) && !$this->isDisabled() && $form->isAnchored() && $form->isSubmitted()) {
+			$this->loadHttpData();
+		}
 		return $this;
 	}
 

tests/Forms/Controls.BaseControl.phpt

@@ -179,3 +179,17 @@ test(function () {
 	Assert::match('<label for="frm-list2">list</label>', (string) $input->getLabel());
 	Assert::same(['"list" field is required.'], $input->getErrors());
 });
+
+
+test(function () { // change HTML name
+	$_POST = ['b' => '123', 'send' => ''];
+	$form = new Form;
+	$form->addSubmit('send', 'Send');
+	$input = $form->addText('a');
+
+	Assert::same('', $input->getValue());
+	$input->setHtmlAttribute('name', 'b');
+	Assert::same('123', $input->getValue());
+
+	Assert::match('<input type="text" name="b" id="frm-a" value="123">', (string) $input->getControl());
+});