/**
* Validates the given data against this constraint. If the constraint was
* already triggered before, then it will return the last result.
*
* @param mixed $data The data
*
* @return boolean
*/
public function validate(Field $field, $data)
{
if (true === $this->checked) {
return;
}
$this->checked = true;
if (true === $this->check($data)) {
return;
}
$field->addError(new Error($field->getInternalName(), $this->getMessage()));
}
