silverstripe-framework/forms/gridfield/GridState.php

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<?php
/**
* This class is a snapshot of the current status of a gridfield.
*
* It's main use is to be inserted into a Form as a HiddenField
*
* @see GridField
*
* @package sapphire
* @subpackage fields-relational
*/
class GridState extends HiddenField {
/** @var GridField */
protected $grid;
protected $gridStateData = null;
/**
*
* @param type $d
* @return type
*/
public static function array_to_object($d) {
if(is_array($d)) {
return (object) array_map(array('GridState', 'array_to_object'), $d);
} else {
return $d;
}
}
/**
*
* @param GridField $name
* @param string $data - json encoded string
*/
public function __construct($grid, $value = null) {
$this->grid = $grid;
if ($value) $this->setValue($value);
parent::__construct($grid->getName() . '[GridState]');
}
/**
*
* @param type $value
*/
public function setValue($value) {
if (is_string($value)) {
$this->gridStateData = new GridState_Data(json_decode($value, true));
}
parent::setValue($value);
}
public function getData() {
if(!$this->gridStateData) $this->gridStateData = new GridState_Data;
return $this->gridStateData;
}
/**
*
* @return type
*/
public function getList() {
return $this->grid->getList();
}
/** @return string */
public function Value() {
if(!$this->gridStateData) {
return json_encode(array());
}
return json_encode($this->gridStateData->toArray());
}
/**
*
* @return type
*/
public function dataValue() {
return $this->Value();
}
/**
*
* @return type
*/
public function attrValue() {
return Convert::raw2att($this->Value());
}
/**
*
* @return type
*/
public function __toString() {
return $this->Value();
}
}
/**
* Simple set of data, similar to stdClass, but without the notice-level errors
*/
class GridState_Data {
protected $data;
function __construct($data = array()) {
$this->data = $data;
}
function __get($name) {
if(!isset($this->data[$name])) $this->data[$name] = new GridState_Data;
if(is_array($this->data[$name])) $this->data[$name] = new GridState_Data($this->data[$name]);
return $this->data[$name];
}
function __set($name, $value) {
$this->data[$name] = $value;
}
function __isset($name) {
return isset($this->data[$name]);
}
function __toString() {
if(!$this->data) return "";
else return json_encode($this->toArray());
}
function toArray() {
$output = array();
foreach($this->data as $k => $v) {
$output[$k] = (is_object($v) && method_exists($v, 'toArray')) ? $v->toArray() : $v;
}
return $output;
}
}
class GridState_Component implements GridField_HTMLProvider {
public function getHTMLFragments($gridField) {
$forTemplate = new ArrayData(array());
$forTemplate->Fields = new ArrayList;
return array(
'before' => $gridField->getState(false)->Field()
);
}
}