silverstripe-userforms/code/formfields/UserFormsFieldList.php
2016-08-09 17:05:22 +12:00

48 lines
1.0 KiB
PHP

<?php
/**
* A list of formfields which allows for iterative processing of nested composite fields
*/
class UserFormsFieldList extends FieldList implements UserFormsFieldContainer
{
public function processNext(EditableFormField $field)
{
$formField = $field->getFormField();
if (!$formField) {
return $this;
}
$this->push($formField);
if ($formField instanceof UserFormsFieldContainer) {
return $formField->setParent($this);
}
return $this;
}
public function getParent()
{
// Field list does not have a parent
return null;
}
public function setParent(UserFormsFieldContainer $parent)
{
return $this;
}
/**
* Remove all empty steps
*/
public function clearEmptySteps()
{
foreach ($this as $field) {
if ($field instanceof UserFormsStepField && count($field->getChildren()) === 0) {
$this->remove($field);
}
}
}
}