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<?php
namespace Studip\Forms;
abstract class Part
{
protected $parent = null;
protected $contextobject = null;
protected $parts = [];
public $if = null;
/**
* Constructor of this Part. Can take one or more Part objects or Input objects or arrays representing an Input object.
* @param ...$parts
*/
public function __construct(...$parts)
{
foreach ($parts as $part) {
if (is_subclass_of($part, Part::class)) {
$this->addPart($part);
} else {
if (!is_array($part)) {
$part->setParent($this);
}
$this->parts[] = $part;
}
}
}
/**
* Sets the context-object which is most likely a SimpleORMap object
* @param $object
* @return $this
*/
public function setContextObject($object)
{
$this->contextobject = $object;
return $this;
}
/**
* Returns the context object of this Part if there is any. If there is none it tries to return the context-object
* of a parent object.
* @return void|null
*/
public function getContextObject()
{
if ($this->contextobject) {
return $this->contextobject;
} elseif ($this->parent) {
return $this->parent->getContextObject();
}
}
/**
* Adds a Part object on the next layer.
* @param Part $part
* @return $this
*/
public function addPart(Part $part)
{
$part->setParent($this);
$this->parts[] = $part;
return $this;
}
/**
* Adds an Input to this Part.
* @param Input $input
* @return Input
*/
public function addInput(Input $input)
{
$input->setParent($this);
$this->parts[] = $input;
return $input;
}
/**
* Renders this Part object. This could be a section or any other HTML element with child-elements.
* @return string
*/
public function render()
{
return '';
}
/**
* Renders the Part element with a condition.
* @return string
*/
public function renderWithCondition()
{
$html = $this->render();
if (!trim($html)) {
return '';
}
if ($this->if !== null) {
$html = '<template v-if="' . htmlReady($this->if) . '">' . $html . '</template>';
}
return $html;
}
/**
* Recursively returns all Input elements attached to this Part object or any child Parts.
* @return array
*/
public function getAllInputs()
{
$inputs = [];
foreach ($this->parts as $part) {
if (is_subclass_of($part, Input::class) && $part->permission) {
$inputs[] = $part;
} elseif(is_subclass_of($part, Part::class)) {
$inputs = array_merge($inputs, $part->getAllInputs());
}
}
return $inputs;
}
/**
* Sets the parent object of this Part. Usually this is done automatically.
* @param Part $parent
* @return $this
* @throws \Exception
*/
public function setParent(Part $parent)
{
$this->parent = $parent;
//Inputs aktualisieren?
foreach ($this->parts as $i => $part) {
if (is_array($part)) {
$input = $this->getInputFromArray($part);
$input->setParent($this);
$this->parts[$i] = $input;
}
}
return $this;
}
/**
* Sets a condition to display this Part. The condition is a javascript condition which is used by vue to
* hide the input if the condition is not satisfies.
* @param string $if
* @return $this
*/
public function setIfCondition($if)
{
$this->if = $if;
return $this;
}
/**
* Returns an Input element from an array.
* @param array $data
* @return array|mixed
* @throws \Exception
*/
public function getInputFromArray(array $data)
{
$context = $this->getContextObject();
if ($context && method_exists($context, 'getTableMetadata')) {
$metadata = $context->getTableMetadata();
$meta = $metadata['fields'][$data['name']];
if (!isset($data['type'])) {
if ($meta) {
$data = array_merge(Input::getFielddataFromMeta($meta, $context), $data);
} else {
$data['type'] = 'text';
}
}
}
if (!isset($data['label'])) {
$data['label'] = $data['name'];
}
if (!isset($data['value']) && $context && method_exists($context, 'isField')) {
if ($context->isField($data['name'])) {
$data['value'] = $context[$data['name']];
}
}
if (!$data['type']) {
return $data;
}
$classname = "\\Studip\\Forms\\".ucfirst($data['type'])."Input";
$attributes = $data;
unset($attributes['name']);
unset($attributes['label']);
unset($attributes['value']);
unset($attributes['type']);
unset($attributes['mapper']);
unset($attributes['store']);
unset($attributes['if']);
unset($attributes['permission']);
unset($attributes['required']);
unset($attributes['attributes']);
$attributes = array_merge($attributes, (array) $data['attributes']);
if (class_exists($classname)) {
$input = new $classname($data['name'], $data['label'], $data['value'], $attributes);
} elseif (class_exists($data['type'])) {
$classname = $data['type'];
$input = new $classname($data['name'], $data['label'], $data['value'], $attributes);
} else {
//this should not happen:
throw new \Exception(sprintf(_("Klasse %s oder %s existiert nicht."), $classname, $data['type']));
}
if ($data['mapper'] && is_callable($data['mapper'])) {
$input->mapper = $data['mapper'];
}
if ($data['store'] && is_callable($data['store'])) {
$input->store = $data['store'];
}
if ($data['if']) {
$input->if = $data['if'];
}
if (isset($data['permission'])) {
$input->permission = $data['permission'];
}
if ($data['required']) {
$input->required = true;
}
return $input;
}
}
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