silverstripe-framework/view/ArrayData.php

110 lines
2.4 KiB
PHP

<?php
/**
* Lets you wrap a bunch of array data, or object members, into a {@link ViewableData} object.
*
* <code>
* new ArrayData(array(
* "ClassName" => "Page",
* "AddAction" => "Add a new Page page",
* ));
* </code>
*
* @package sapphire
* @subpackage view
*/
class ArrayData extends ViewableData {
/**
* @var array
* @see ArrayData::_construct()
*/
protected $array;
/**
* @param object|array $value An associative array, or an object with simple properties.
* Converts object properties to keys of an associative array.
*/
public function __construct($value) {
if (is_object($value)) {
$this->array = get_object_vars($value);
} elseif (ArrayLib::is_associative($value)) {
$this->array = $value;
} elseif (is_array($value) && count($value) === 0) {
$this->array = array();
} else {
$message = 'Parameter to ArrayData constructor needs to be an object or associative array';
throw new InvalidArgumentException($message);
}
parent::__construct();
}
/**
* Get the source array
*
* @return array
*/
public function getArray() {
return $this->array;
}
/**
* Gets a field from this object.
*
* @param string $field
*
* If the value is an object but not an instance of
* ViewableData, it will be converted recursively to an
* ArrayData.
*
* If the value is an associative array, it will likewise be
* converted recursively to an ArrayData.
*/
public function getField($f) {
$value = $this->array[$f];
if (is_object($value) && !$value instanceof ViewableData) {
return new ArrayData($value);
} elseif (ArrayLib::is_associative($value)) {
return new ArrayData($value);
} else {
return $value;
}
}
/**
* Add or set a field on this object.
*
* @param string $field
* @param mixed $value
*/
public function setField($field, $value) {
$this->array[$field] = $value;
}
/**
* Check array to see if field isset
*
* @param string Field Key
* @return bool
*/
public function hasField($f) {
return isset($this->array[$f]);
}
/**
* Converts an associative array to a simple object
*
* @param array
* @return obj $obj
*/
public static function array_to_object($arr = null) {
$obj = new stdClass();
if ($arr) foreach($arr as $name => $value) $obj->$name = $value;
return $obj;
}
/**
* This is pretty crude, but it helps diagnose error situations
*/
function forTemplate() {
return var_export($this->array, true);
}
}