box-o-sand/php-practice/web-cake/html/cake/libs/view/helpers/xml.php

175 lines
4.5 KiB
PHP

<?php
/**
* XML Helper class file.
*
* Simplifies the output of XML documents.
*
* CakePHP(tm) : Rapid Development Framework (http://cakephp.org)
* Copyright 2005-2010, Cake Software Foundation, Inc. (http://cakefoundation.org)
*
* Licensed under The MIT License
* Redistributions of files must retain the above copyright notice.
*
* @copyright Copyright 2005-2010, Cake Software Foundation, Inc. (http://cakefoundation.org)
* @link http://cakephp.org CakePHP(tm) Project
* @package cake
* @subpackage cake.cake.libs.view.helpers
* @since CakePHP(tm) v 1.2
* @license MIT License (http://www.opensource.org/licenses/mit-license.php)
*/
App::import('Core', array('Xml', 'Set'));
/**
* XML Helper class for easy output of XML structures.
*
* XmlHelper encloses all methods needed while working with XML documents.
*
* @package cake
* @subpackage cake.cake.libs.view.helpers
* @link http://book.cakephp.org/view/1473/XML
*/
class XmlHelper extends AppHelper {
/**
* Default document encoding
*
* @access public
* @var string
*/
var $encoding = 'UTF-8';
/**
* Constructor
*
* @return void
*/
function __construct() {
parent::__construct();
$this->Xml =& new Xml();
$this->Xml->options(array('verifyNs' => false));
}
/**
* Returns an XML document header
*
* @param array $attrib Header tag attributes
* @return string XML header
* @access public
* @link http://book.cakephp.org/view/1476/header
*/
function header($attrib = array()) {
if (Configure::read('App.encoding') !== null) {
$this->encoding = Configure::read('App.encoding');
}
if (is_array($attrib)) {
$attrib = array_merge(array('encoding' => $this->encoding), $attrib);
}
if (is_string($attrib) && strpos($attrib, 'xml') !== 0) {
$attrib = 'xml ' . $attrib;
}
return $this->Xml->header($attrib);
}
/**
* Adds a namespace to any documents generated
*
* @param string $name The namespace name
* @param string $url The namespace URI; can be empty if in the default namespace map
* @return boolean False if no URL is specified, and the namespace does not exist
* default namespace map, otherwise true
* @deprecated
* @see Xml::addNs()
*/
function addNs($name, $url = null) {
return $this->Xml->addNamespace($name, $url);
}
/**
* Removes a namespace added in addNs()
*
* @param string $name The namespace name or URI
* @deprecated
* @see Xml::removeNs()
* @access public
*/
function removeNs($name) {
return $this->Xml->removeGlobalNamespace($name);
}
/**
* Generates an XML element
*
* @param string $name The name of the XML element
* @param array $attrib The attributes of the XML element
* @param mixed $content XML element content
* @param boolean $endTag Whether the end tag of the element should be printed
* @return string XML
* @access public
* @link http://book.cakephp.org/view/1475/elem
*/
function elem($name, $attrib = array(), $content = null, $endTag = true) {
$namespace = null;
if (isset($attrib['namespace'])) {
$namespace = $attrib['namespace'];
unset($attrib['namespace']);
}
$cdata = false;
if (is_array($content) && isset($content['cdata'])) {
$cdata = true;
unset($content['cdata']);
}
if (is_array($content) && array_key_exists('value', $content)) {
$content = $content['value'];
}
$children = array();
if (is_array($content)) {
$children = $content;
$content = null;
}
$elem =& $this->Xml->createElement($name, $content, $attrib, $namespace);
foreach ($children as $child) {
$elem->createElement($child);
}
$out = $elem->toString(array('cdata' => $cdata, 'leaveOpen' => !$endTag));
if (!$endTag) {
$this->Xml =& $elem;
}
return $out;
}
/**
* Create closing tag for current element
*
* @return string
* @access public
*/
function closeElem() {
$name = $this->Xml->name();
if ($parent =& $this->Xml->parent()) {
$this->Xml =& $parent;
}
return '</' . $name . '>';
}
/**
* Serializes a model resultset into XML
*
* @param mixed $data The content to be converted to XML
* @param array $options The data formatting options. For a list of valid options, see
* Xml::__construct().
* @return string A copy of $data in XML format
* @see Xml::__construct()
* @access public
* @link http://book.cakephp.org/view/1474/serialize
*/
function serialize($data, $options = array()) {
$options += array('attributes' => false, 'format' => 'attributes');
$data =& new Xml($data, $options);
return $data->toString($options + array('header' => false));
}
}