/**
* Pre-process form: set id if needed and and set
*/
private function preProcessForm()
{
$xpath = new DOMXPath($this->document);
$elements = $xpath->query('//input | //textarea | //div[@data-input-name]');
/** @var DOMElement $element */
foreach ($elements as $element) {
// Set some basic vars
$name = $element->getAttribute('name');
if (!$name) {
$name = $element->getAttribute('data-input-name');
}
if (!$name) {
// At least a name is needed to submit a value.
// Silently continue, might be a submit button.
continue;
}
// Create an id if needed, this speeds up finding the element again
$id = $element->getAttribute('id');
if (!$id) {
$id = md5(spl_object_hash($element));
$element->setAttribute('id', $id);
}
$this->nameIdXref[$name] = $id;
// Detect element type
$type = $element->getAttribute('type');
if ($element->tagName == 'textarea') {
$type = 'textarea';
}
// Add validation
if (isset($this->formElements[$type])) {
$validator = new $this->formElements[$type]();
} else {
// Create a default validator
$validator = new $this->formElements['text']();
}
if ($this->inputFilter->has($name)) {
$input = $this->inputFilter->get($name);
} else {
// No input found for element, create a new one
$input = new Input($name);
// Enforce properties so the NotEmpty validator is automatically added,
// we'll take care of this later.
$input->setRequired(false);
$input->setAllowEmpty(true);
$this->inputFilter->add($input);
}
// Process element and attach filters and validators
$validator($element, $input);
}
}
