checkRequirements, how to secure submittedBy forms handlers

this is my solution, in my own extended Form class,

<?php

	/**
	 * Fires submit/click events.
	 * @return void
	 */
	public function fireEvents()
	{
		$submittedBy = $this->isSubmitted();
		if (!$submittedBy) {
			return;

		}
		elseif ($submittedBy instanceof \Nette\Forms\ISubmitterControl) {
			if (!$submittedBy->getValidationScope() || $this->isValid()) {
				foreach($submittedBy->onClick as $func) {
					if (is_array($func)) {
						$element = new \Nette\Reflection\Method($func[0], $func[1]);
						$this->presenter->checkRequirements($element);
					}
				}
				$submittedBy->click();
				$valid = TRUE;
			}
			else {
				$submittedBy->onInvalidClick($submittedBy);
			}
		}

		if (isset($valid) || $this->isValid()) {
			foreach($this->onSuccess as $func) {
				if (is_array($func)) {
					$element = new \Nette\Reflection\Method($func[0], $func[1]);
					$this->presenter->checkRequirements($element);
				}
			}

			$this->onSuccess($this);
		}
		else {
			$this->onError($this);
			if ($this->onInvalidSubmit) {
				trigger_error(__CLASS__ . '->onInvalidSubmit is deprecated; use onError instead.', E_USER_WARNING);
				$this->onInvalidSubmit($this);
			}
		}

		if ($this->onSuccess) { // back compatibility
			$this->onSubmit($this);
		} elseif ($this->onSubmit) {
			trigger_error(__CLASS__ . '->onSubmit changed its behavior; use onSuccess instead.', E_USER_WARNING);
			if (isset($valid) || $this->isValid()) {
				$this->onSubmit($this);
			}
		}
	}



?>

not so nice, but do you agree with this solution?

yes, if you want to just read, so you need to create form, if you want to control write permission you have to control permission on callback