/**
* Validates the values in the $values array and returns a ValidationResult.
*
* @param array $values
* @param string $context
* @return ValidationResult
*/
public function validate(array $values, $context = self::DEFAULT_CONTEXT)
{
$isValid = true;
$messageStack = $this->buildMessageStack($context);
$this->output = new Container();
$input = new Container($values);
foreach ($this->chains[$context] as $chain) {
/** @var Chain $chain */
$isValid = $chain->validate($messageStack, $input, $this->output) && $isValid;
}
return new ValidationResult($isValid, $this->messageStack->getMessages(), $this->output->getArrayCopy());
}
/**
* Determines whether or not the value may be empty.
*
* @param Container $input
* @return bool
*/
protected function allowEmpty(Container $input)
{
if (isset($this->allowEmptyCallback)) {
$this->allowEmpty = call_user_func($this->allowEmptyCallback, $input->getArrayCopy());
}
return $this->allowEmpty;
}
/**
* Validates the value according to this rule, and returns the result as a bool.
*
* @param string $key
* @param Container $input
* @return bool
*/
public function isValid($key, Container $input)
{
$this->values = $input->getArrayCopy();
return parent::isValid($key, $input);
}
/**
* Determines if the value is required.
*
* @param Container $input
* @return bool
*/
protected function isRequired(Container $input)
{
if (isset($this->requiredCallback)) {
$this->required = call_user_func_array($this->requiredCallback, [$input->getArrayCopy()]);
}
return $this->required;
}