silverstripe-framework/Forms/GridField/GridState_Data.php

<?php

namespace SilverStripe\Forms\GridField;

/**
 * Simple set of data, similar to stdClass, but without the notice-level
 * errors.
 *
 * @see GridState
 */
class GridState_Data
{

	/**
	 * @var array
	 */
	protected $data;

	public function __construct($data = array())
	{
		$this->data = $data;
	}

	public function __get($name)
	{
		return $this->getData($name, new GridState_Data());
	}

	public function __call($name, $arguments)
	{
		// Assume first parameter is default value
		$default = empty($arguments) ? new GridState_Data() : $arguments[0];
		return $this->getData($name, $default);
	}

	/**
	 * Retrieve the value for the given key
	 *
	 * @param string $name The name of the value to retrieve
	 * @param mixed $default Default value to assign if not set
	 * @return mixed The value associated with this key, or the value specified by $default if not set
	 */
	public function getData($name, $default = null)
	{
		if (!isset($this->data[$name])) {
			$this->data[$name] = $default;
		} else {
			if (is_array($this->data[$name])) {
				$this->data[$name] = new GridState_Data($this->data[$name]);
			}
		}

		return $this->data[$name];
	}

	public function __set($name, $value)
	{
		$this->data[$name] = $value;
	}

	public function __isset($name)
	{
		return isset($this->data[$name]);
	}

	public function __unset($name)
	{
		unset($this->data[$name]);
	}

	public function __toString()
	{
		if (!$this->data) {
			return "";
		}

		return json_encode($this->toArray());
	}

	public function toArray()
	{
		$output = array();

		foreach ($this->data as $k => $v) {
			$output[$k] = (is_object($v) && method_exists($v, 'toArray')) ? $v->toArray() : $v;
		}

		return $output;
	}
}