Strict types & hidden field

[lukascellar]

• bug report? no
• feature request? yes
• version: 3.0.0

Description

Currently value of hidden field is always casted to string, even if value is null. I would like to propose to allow null value or cast value to integer/float etc if there are defined validation rules.

forms/src/Forms/Controls/HiddenField.php:

public function setValue($value)
{
	if (!is_scalar($value) && $value !== NULL && !method_exists($value, '__toString')) {
		throw new Nette\InvalidArgumentException(sprintf("Value must be scalar or NULL, %s given in field '%s'.", gettype($value), $this->name));
	}
	if (!$this->persistValue) {
		$this->value = (string) $value;
	}
	return $this;
}

[dg]

What about addRule(Form::INTEGER) on hidden field?

[lukascellar]

Works addRule(Form::INTEGER) with hidden input in 2.4? Tried it now, but in onSuccess callback value of id is still a string.