Rules: added removeRule()

Author: dg

src/Forms/Rules.php

@@ -92,6 +92,26 @@ public function addRule($validator, $errorMessage = null, $arg = null)
 	}
 
 
+	/**
+	 * Removes a validation rule for the current control.
+	 * @param  callable|string  $validator
+	 * @return static
+	 */
+	public function removeRule($validator)
+	{
+		if ($validator === Form::REQUIRED) {
+			$this->required = null;
+		} else {
+			foreach ($this->rules as $i => $rule) {
+				if (!$rule->branch && $rule->validator === $validator) {
+					unset($this->rules[$i]);
+				}
+			}
+		}
+		return $this;
+	}
+
+
 	/**
 	 * Adds a validation condition and returns new branch.
 	 * @return static       new branch

tests/Forms/Rules.removeRule.phpt

@@ -0,0 +1,57 @@
+<?php
+
+declare(strict_types=1);
+
+use Nette\Forms\Form;
+use Tester\Assert;
+
+
+require __DIR__ . '/../bootstrap.php';
+
+
+test(function () {
+	$form = new Form;
+	$input = $form->addText('text1');
+	$input->setRequired();
+	$input->addRule($form::EMAIL);
+
+	$rules = iterator_to_array($input->getRules());
+	Assert::count(2, $rules);
+	Assert::same($form::REQUIRED, $rules[0]->validator);
+	Assert::same($form::EMAIL, $rules[1]->validator);
+
+	$input->getRules()->removeRule($form::EMAIL);
+
+	$rules = iterator_to_array($input->getRules());
+	Assert::count(1, $rules);
+	Assert::same($form::REQUIRED, $rules[0]->validator);
+
+	$input->getRules()->removeRule($form::REQUIRED);
+
+	$rules = iterator_to_array($input->getRules());
+	Assert::count(0, $rules);
+});
+
+
+test(function () {
+	$form = new Form;
+	$input = $form->addText('text');
+	$input->setRequired();
+
+	Assert::count(1, iterator_to_array($input->getRules()));
+	$input->getRules()->removeRule($form::EMAIL);
+
+	Assert::count(1, iterator_to_array($input->getRules()));
+});
+
+
+test(function () {
+	$form = new Form;
+	$input = $form->addText('text');
+	$input->addCondition($form::EMAIL);
+
+	Assert::count(1, iterator_to_array($input->getRules()));
+	$input->getRules()->removeRule($form::EMAIL);
+
+	Assert::count(1, iterator_to_array($input->getRules()));
+});