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852 lines
27 KiB
PHP
852 lines
27 KiB
PHP
<?php
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/**
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* Zend Framework
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*
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* LICENSE
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*
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* This source file is subject to the new BSD license that is bundled
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* with this package in the file LICENSE.txt.
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* It is also available through the world-wide-web at this URL:
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* http://framework.zend.com/license/new-bsd
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* If you did not receive a copy of the license and are unable to
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* obtain it through the world-wide-web, please send an email
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* to license@zend.com so we can send you a copy immediately.
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*
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* @category Zend
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* @package Zend_View
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* @subpackage Helper
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* @copyright Copyright (c) 2005-2009 Zend Technologies USA Inc. (http://www.zend.com)
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* @license http://framework.zend.com/license/new-bsd New BSD License
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* @version $Id: HelperAbstract.php 16971 2009-07-22 18:05:45Z mikaelkael $
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*/
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/**
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* @see Zend_View_Helper_Navigation_Helper
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*/
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require_once 'Zend/View/Helper/Navigation/Helper.php';
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/**
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* @see Zend_View_Helper_HtmlElement
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*/
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require_once 'Zend/View/Helper/HtmlElement.php';
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/**
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* Base class for navigational helpers
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*
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* @category Zend
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* @package Zend_View
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* @subpackage Helper
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* @copyright Copyright (c) 2005-2009 Zend Technologies USA Inc. (http://www.zend.com)
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* @license http://framework.zend.com/license/new-bsd New BSD License
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*/
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abstract class Zend_View_Helper_Navigation_HelperAbstract
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extends Zend_View_Helper_HtmlElement
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implements Zend_View_Helper_Navigation_Helper
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{
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/**
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* Container to operate on by default
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*
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* @var Zend_Navigation_Container
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*/
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protected $_container;
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/**
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* The minimum depth a page must have to be included when rendering
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*
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* @var int
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*/
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protected $_minDepth;
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/**
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* The maximum depth a page can have to be included when rendering
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*
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* @var int
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*/
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protected $_maxDepth;
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/**
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* Indentation string
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*
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* @var string
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*/
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protected $_indent = '';
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/**
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* Translator
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*
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* @var Zend_Translate_Adapter
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*/
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protected $_translator;
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/**
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* ACL to use when iterating pages
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*
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* @var Zend_Acl
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*/
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protected $_acl;
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/**
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* Wheter invisible items should be rendered by this helper
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*
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* @var bool
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*/
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protected $_renderInvisible = false;
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/**
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* ACL role to use when iterating pages
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*
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* @var string|Zend_Acl_Role_Interface
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*/
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protected $_role;
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/**
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* Whether translator should be used for page labels and titles
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*
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* @var bool
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*/
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protected $_useTranslator = true;
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/**
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* Whether ACL should be used for filtering out pages
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*
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* @var bool
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*/
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protected $_useAcl = true;
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/**
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* Default ACL to use when iterating pages if not explicitly set in the
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* instance by calling {@link setAcl()}
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*
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* @var Zend_Acl
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*/
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protected static $_defaultAcl;
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/**
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* Default ACL role to use when iterating pages if not explicitly set in the
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* instance by calling {@link setRole()}
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*
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* @var string|Zend_Acl_Role_Interface
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*/
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protected static $_defaultRole;
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// Accessors:
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/**
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* Sets navigation container the helper operates on by default
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*
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* Implements {@link Zend_View_Helper_Navigation_Interface::setContainer()}.
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*
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* @param Zend_Navigation_Container $container [optional] container
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* to operate on.
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* Default is null,
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* meaning container
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* will be reset.
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* @return Zend_View_Helper_Navigation_HelperAbstract fluent interface,
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* returns self
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*/
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public function setContainer(Zend_Navigation_Container $container = null)
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{
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$this->_container = $container;
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return $this;
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}
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/**
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* Returns the navigation container helper operates on by default
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*
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* Implements {@link Zend_View_Helper_Navigation_Interface::getContainer()}.
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*
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* If a helper is not explicitly set in this helper instance by calling
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* {@link setContainer()} or by passing it through the helper entry point,
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* this method will look in {@link Zend_Registry} for a container by using
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* the key 'Zend_Navigation'.
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*
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* If no container is set, and nothing is found in Zend_Registry, a new
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* container will be instantiated and stored in the helper.
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*
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* @return Zend_Navigation_Container navigation container
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*/
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public function getContainer()
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{
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if (null === $this->_container) {
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// try to fetch from registry first
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require_once 'Zend/Registry.php';
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if (Zend_Registry::isRegistered('Zend_Navigation')) {
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$nav = Zend_Registry::get('Zend_Navigation');
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if ($nav instanceof Zend_Navigation_Container) {
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return $this->_container = $nav;
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}
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}
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// nothing found in registry, create new container
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require_once 'Zend/Navigation.php';
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$this->_container = new Zend_Navigation();
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}
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return $this->_container;
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}
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/**
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* Sets the minimum depth a page must have to be included when rendering
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*
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* @param int $minDepth [optional] minimum
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* depth. Default is
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* null, which sets
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* no minimum depth.
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* @return Zend_View_Helper_Navigation_HelperAbstract fluent interface,
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* returns self
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*/
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public function setMinDepth($minDepth = null)
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{
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if (null === $minDepth || is_int($minDepth)) {
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$this->_minDepth = $minDepth;
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} else {
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$this->_minDepth = (int) $minDepth;
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}
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return $this;
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}
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/**
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* Returns minimum depth a page must have to be included when rendering
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*
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* @return int|null minimum depth or null
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*/
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public function getMinDepth()
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{
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if (!is_int($this->_minDepth) || $this->_minDepth < 0) {
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return 0;
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}
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return $this->_minDepth;
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}
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/**
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* Sets the maximum depth a page can have to be included when rendering
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*
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* @param int $maxDepth [optional] maximum
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* depth. Default is
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* null, which sets no
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* maximum depth.
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* @return Zend_View_Helper_Navigation_HelperAbstract fluent interface,
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* returns self
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*/
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public function setMaxDepth($maxDepth = null)
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{
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if (null === $maxDepth || is_int($maxDepth)) {
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$this->_maxDepth = $maxDepth;
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} else {
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$this->_maxDepth = (int) $maxDepth;
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}
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return $this;
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}
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/**
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* Returns maximum depth a page can have to be included when rendering
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*
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* @return int|null maximum depth or null
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*/
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public function getMaxDepth()
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{
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return $this->_maxDepth;
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}
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/**
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* Set the indentation string for using in {@link render()}, optionally a
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* number of spaces to indent with
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*
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* @param string|int $indent indentation string or
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* number of spaces
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* @return Zend_View_Helper_Navigation_HelperAbstract fluent interface,
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* returns self
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*/
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public function setIndent($indent)
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{
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$this->_indent = $this->_getWhitespace($indent);
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return $this;
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}
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/**
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* Returns indentation
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*
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* @return string
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*/
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public function getIndent()
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{
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return $this->_indent;
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}
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/**
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* Sets translator to use in helper
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*
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* Implements {@link Zend_View_Helper_Navigation_Helper::setTranslator()}.
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*
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* @param mixed $translator [optional] translator.
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* Expects an object of
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* type
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* {@link Zend_Translate_Adapter}
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* or {@link Zend_Translate},
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* or null. Default is
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* null, which sets no
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* translator.
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* @return Zend_View_Helper_Navigation_HelperAbstract fluent interface,
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* returns self
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*/
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public function setTranslator($translator = null)
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{
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if (null == $translator ||
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$translator instanceof Zend_Translate_Adapter) {
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$this->_translator = $translator;
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} elseif ($translator instanceof Zend_Translate) {
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$this->_translator = $translator->getAdapter();
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}
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return $this;
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}
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/**
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* Returns translator used in helper
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*
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* Implements {@link Zend_View_Helper_Navigation_Helper::getTranslator()}.
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*
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* @return Zend_Translate_Adapter|null translator or null
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*/
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public function getTranslator()
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{
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if (null === $this->_translator) {
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require_once 'Zend/Registry.php';
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if (Zend_Registry::isRegistered('Zend_Translate')) {
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$this->setTranslator(Zend_Registry::get('Zend_Translate'));
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}
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}
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return $this->_translator;
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}
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/**
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* Sets ACL to use when iterating pages
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*
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* Implements {@link Zend_View_Helper_Navigation_Helper::setAcl()}.
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*
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* @param Zend_Acl $acl [optional] ACL object.
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* Default is null.
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* @return Zend_View_Helper_Navigation_HelperAbstract fluent interface,
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* returns self
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*/
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public function setAcl(Zend_Acl $acl = null)
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{
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$this->_acl = $acl;
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return $this;
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}
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/**
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* Returns ACL or null if it isn't set using {@link setAcl()} or
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* {@link setDefaultAcl()}
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*
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* Implements {@link Zend_View_Helper_Navigation_Helper::getAcl()}.
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*
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* @return Zend_Acl|null ACL object or null
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*/
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public function getAcl()
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{
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if ($this->_acl === null && self::$_defaultAcl !== null) {
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return self::$_defaultAcl;
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}
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return $this->_acl;
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}
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/**
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* Sets ACL role(s) to use when iterating pages
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*
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* Implements {@link Zend_View_Helper_Navigation_Helper::setRole()}.
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*
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* @param mixed $role [optional] role to
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* set. Expects a string,
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* an instance of type
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* {@link Zend_Acl_Role_Interface},
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* or null. Default is
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* null, which will set
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* no role.
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* @throws Zend_View_Exception if $role is invalid
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* @return Zend_View_Helper_Navigation_HelperAbstract fluent interface,
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* returns self
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*/
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public function setRole($role = null)
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{
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if (null === $role || is_string($role) ||
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$role instanceof Zend_Acl_Role_Interface) {
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$this->_role = $role;
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} else {
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require_once 'Zend/View/Exception.php';
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throw new Zend_View_Exception(sprintf(
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'$role must be a string, null, or an instance of ' .
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'Zend_Acl_Role_Interface; %s given',
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gettype($role)));
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}
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return $this;
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}
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/**
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* Returns ACL role to use when iterating pages, or null if it isn't set
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* using {@link setRole()} or {@link setDefaultRole()}
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*
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* Implements {@link Zend_View_Helper_Navigation_Helper::getRole()}.
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*
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* @return string|Zend_Acl_Role_Interface|null role or null
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*/
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public function getRole()
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{
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if ($this->_role === null && self::$_defaultRole !== null) {
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return self::$_defaultRole;
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}
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return $this->_role;
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}
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/**
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* Sets whether ACL should be used
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*
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* Implements {@link Zend_View_Helper_Navigation_Helper::setUseAcl()}.
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*
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* @param bool $useAcl [optional] whether ACL
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* should be used.
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* Default is true.
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* @return Zend_View_Helper_Navigation_HelperAbstract fluent interface,
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* returns self
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*/
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public function setUseAcl($useAcl = true)
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{
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$this->_useAcl = (bool) $useAcl;
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return $this;
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}
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/**
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* Returns whether ACL should be used
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*
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* Implements {@link Zend_View_Helper_Navigation_Helper::getUseAcl()}.
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*
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* @return bool whether ACL should be used
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*/
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public function getUseAcl()
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{
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return $this->_useAcl;
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}
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/**
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* Return renderInvisible flag
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*
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* @return bool
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*/
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public function getRenderInvisible()
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{
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return $this->_renderInvisible;
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}
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/**
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* Render invisible items?
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*
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* @param bool $renderInvisible [optional] boolean flag
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* @return Zend_View_Helper_Navigation_HelperAbstract fluent interface
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* returns self
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*/
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public function setRenderInvisible($renderInvisible = true)
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{
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$this->_renderInvisible = (bool) $renderInvisible;
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return $this;
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}
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/**
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* Sets whether translator should be used
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*
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* Implements {@link Zend_View_Helper_Navigation_Helper::setUseTranslator()}.
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*
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* @param bool $useTranslator [optional] whether
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* translator should be
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* used. Default is true.
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* @return Zend_View_Helper_Navigation_HelperAbstract fluent interface,
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* returns self
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*/
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public function setUseTranslator($useTranslator = true)
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{
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$this->_useTranslator = (bool) $useTranslator;
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return $this;
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}
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/**
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* Returns whether translator should be used
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*
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* Implements {@link Zend_View_Helper_Navigation_Helper::getUseTranslator()}.
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*
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* @return bool whether translator should be used
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*/
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public function getUseTranslator()
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{
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return $this->_useTranslator;
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}
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|
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// Magic overloads:
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/**
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* Magic overload: Proxy calls to the navigation container
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*
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* @param string $method method name in container
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* @param array $arguments [optional] arguments to pass
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* @return mixed returns what the container returns
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* @throws Zend_Navigation_Exception if method does not exist in container
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*/
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public function __call($method, array $arguments = array())
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{
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return call_user_func_array(
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array($this->getContainer(), $method),
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$arguments);
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}
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/**
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* Magic overload: Proxy to {@link render()}.
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*
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* This method will trigger an E_USER_ERROR if rendering the helper causes
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* an exception to be thrown.
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*
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* Implements {@link Zend_View_Helper_Navigation_Helper::__toString()}.
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*
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* @return string
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*/
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public function __toString()
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{
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try {
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return $this->render();
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} catch (Exception $e) {
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$msg = get_class($e) . ': ' . $e->getMessage();
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trigger_error($msg, E_USER_ERROR);
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return '';
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}
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}
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|
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// Public methods:
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/**
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* Finds the deepest active page in the given container
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*
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* @param Zend_Navigation_Container $container container to search
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* @param int|null $minDepth [optional] minimum depth
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* required for page to be
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* valid. Default is to use
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* {@link getMinDepth()}. A
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* null value means no minimum
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* depth required.
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|
* @param int|null $minDepth [optional] maximum depth
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|
* a page can have to be
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|
* valid. Default is to use
|
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* {@link getMaxDepth()}. A
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* null value means no maximum
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* depth required.
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* @return array an associative array with
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* the values 'depth' and
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* 'page', or an empty array
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* if not found
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*/
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|
public function findActive(Zend_Navigation_Container $container,
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$minDepth = null,
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$maxDepth = -1)
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{
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if (!is_int($minDepth)) {
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$minDepth = $this->getMinDepth();
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}
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if ((!is_int($maxDepth) || $maxDepth < 0) && null !== $maxDepth) {
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$maxDepth = $this->getMaxDepth();
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}
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$found = null;
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$foundDepth = -1;
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$iterator = new RecursiveIteratorIterator($container,
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RecursiveIteratorIterator::CHILD_FIRST);
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foreach ($iterator as $page) {
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$currDepth = $iterator->getDepth();
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if ($currDepth < $minDepth || !$this->accept($page)) {
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// page is not accepted
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continue;
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}
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if ($page->isActive(false) && $currDepth > $foundDepth) {
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// found an active page at a deeper level than before
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$found = $page;
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$foundDepth = $currDepth;
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}
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}
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if (is_int($maxDepth) && $foundDepth > $maxDepth) {
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while ($foundDepth > $maxDepth) {
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if (--$foundDepth < $minDepth) {
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$found = null;
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break;
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}
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$found = $found->getParent();
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if (!$found instanceof Zend_Navigation_Page) {
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$found = null;
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break;
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}
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}
|
|
}
|
|
|
|
if ($found) {
|
|
return array('page' => $found, 'depth' => $foundDepth);
|
|
} else {
|
|
return array();
|
|
}
|
|
}
|
|
|
|
/**
|
|
* Checks if the helper has a container
|
|
*
|
|
* Implements {@link Zend_View_Helper_Navigation_Helper::hasContainer()}.
|
|
*
|
|
* @return bool whether the helper has a container or not
|
|
*/
|
|
public function hasContainer()
|
|
{
|
|
return null !== $this->_container;
|
|
}
|
|
|
|
/**
|
|
* Checks if the helper has an ACL instance
|
|
*
|
|
* Implements {@link Zend_View_Helper_Navigation_Helper::hasAcl()}.
|
|
*
|
|
* @return bool whether the helper has a an ACL instance or not
|
|
*/
|
|
public function hasAcl()
|
|
{
|
|
return null !== $this->_acl;
|
|
}
|
|
|
|
/**
|
|
* Checks if the helper has an ACL role
|
|
*
|
|
* Implements {@link Zend_View_Helper_Navigation_Helper::hasRole()}.
|
|
*
|
|
* @return bool whether the helper has a an ACL role or not
|
|
*/
|
|
public function hasRole()
|
|
{
|
|
return null !== $this->_role;
|
|
}
|
|
|
|
/**
|
|
* Checks if the helper has a translator
|
|
*
|
|
* Implements {@link Zend_View_Helper_Navigation_Helper::hasTranslator()}.
|
|
*
|
|
* @return bool whether the helper has a translator or not
|
|
*/
|
|
public function hasTranslator()
|
|
{
|
|
return null !== $this->_translator;
|
|
}
|
|
|
|
/**
|
|
* Returns an HTML string containing an 'a' element for the given page
|
|
*
|
|
* @param Zend_Navigation_Page $page page to generate HTML for
|
|
* @return string HTML string for the given page
|
|
*/
|
|
public function htmlify(Zend_Navigation_Page $page)
|
|
{
|
|
// get label and title for translating
|
|
$label = $page->getLabel();
|
|
$title = $page->getTitle();
|
|
|
|
if ($this->getUseTranslator() && $t = $this->getTranslator()) {
|
|
if (is_string($label) && !empty($label)) {
|
|
$label = $t->translate($label);
|
|
}
|
|
if (is_string($title) && !empty($title)) {
|
|
$title = $t->translate($title);
|
|
}
|
|
}
|
|
|
|
// get attribs for anchor element
|
|
$attribs = array(
|
|
'id' => $page->getId(),
|
|
'title' => $title,
|
|
'class' => $page->getClass(),
|
|
'href' => $page->getHref(),
|
|
'target' => $page->getTarget()
|
|
);
|
|
|
|
return '<a' . $this->_htmlAttribs($attribs) . '>'
|
|
. $this->view->escape($label)
|
|
. '</a>';
|
|
}
|
|
|
|
// Iterator filter methods:
|
|
|
|
/**
|
|
* Determines whether a page should be accepted when iterating
|
|
*
|
|
* Rules:
|
|
* - If a page is not visible it is not accepted, unless RenderInvisible has
|
|
* been set to true.
|
|
* - If helper has no ACL, page is accepted
|
|
* - If helper has ACL, but no role, page is not accepted
|
|
* - If helper has ACL and role:
|
|
* - Page is accepted if it has no resource or privilege
|
|
* - Page is accepted if ACL allows page's resource or privilege
|
|
* - If page is accepted by the rules above and $recursive is true, the page
|
|
* will not be accepted if it is the descendant of a non-accepted page.
|
|
*
|
|
* @param Zend_Navigation_Page $page page to check
|
|
* @param bool $recursive [optional] if true, page will not
|
|
* be accepted if it is the
|
|
* descendant of a page that is not
|
|
* accepted. Default is true.
|
|
* @return bool whether page should be accepted
|
|
*/
|
|
public function accept(Zend_Navigation_Page $page, $recursive = true)
|
|
{
|
|
// accept by default
|
|
$accept = true;
|
|
|
|
if (!$page->isVisible(false) && !$this->getRenderInvisible()) {
|
|
// don't accept invisible pages
|
|
$accept = false;
|
|
} elseif ($this->getUseAcl() && !$this->_acceptAcl($page)) {
|
|
// acl is not amused
|
|
$accept = false;
|
|
}
|
|
|
|
if ($accept && $recursive) {
|
|
$parent = $page->getParent();
|
|
if ($parent instanceof Zend_Navigation_Page) {
|
|
$accept = $this->accept($parent, true);
|
|
}
|
|
}
|
|
|
|
return $accept;
|
|
}
|
|
|
|
/**
|
|
* Determines whether a page should be accepted by ACL when iterating
|
|
*
|
|
* Rules:
|
|
* - If helper has no ACL, page is accepted
|
|
* - If page has a resource or privilege defined, page is accepted
|
|
* if the ACL allows access to it using the helper's role
|
|
* - If page has no resource or privilege, page is accepted
|
|
*
|
|
* @param Zend_Navigation_Page $page page to check
|
|
* @return bool whether page is accepted by ACL
|
|
*/
|
|
protected function _acceptAcl(Zend_Navigation_Page $page)
|
|
{
|
|
if (!$acl = $this->getAcl()) {
|
|
// no acl registered means don't use acl
|
|
return true;
|
|
}
|
|
|
|
$role = $this->getRole();
|
|
$resource = $page->getResource();
|
|
$privilege = $page->getPrivilege();
|
|
|
|
if ($resource || $privilege) {
|
|
// determine using helper role and page resource/privilege
|
|
return $acl->isAllowed($role, $resource, $privilege);
|
|
}
|
|
|
|
return true;
|
|
}
|
|
|
|
// Util methods:
|
|
|
|
/**
|
|
* Retrieve whitespace representation of $indent
|
|
*
|
|
* @param int|string $indent
|
|
* @return string
|
|
*/
|
|
protected function _getWhitespace($indent)
|
|
{
|
|
if (is_int($indent)) {
|
|
$indent = str_repeat(' ', $indent);
|
|
}
|
|
|
|
return (string) $indent;
|
|
}
|
|
|
|
/**
|
|
* Converts an associative array to a string of tag attributes.
|
|
*
|
|
* Overloads {@link Zend_View_Helper_HtmlElement::_htmlAttribs()}.
|
|
*
|
|
* @param array $attribs an array where each key-value pair is converted
|
|
* to an attribute name and value
|
|
* @return string an attribute string
|
|
*/
|
|
protected function _htmlAttribs($attribs)
|
|
{
|
|
// filter out null values and empty string values
|
|
foreach ($attribs as $key => $value) {
|
|
if ($value === null || (is_string($value) && !strlen($value))) {
|
|
unset($attribs[$key]);
|
|
}
|
|
}
|
|
|
|
return parent::_htmlAttribs($attribs);
|
|
}
|
|
|
|
/**
|
|
* Normalize an ID
|
|
*
|
|
* Overrides {@link Zend_View_Helper_HtmlElement::_normalizeId()}.
|
|
*
|
|
* @param string $value
|
|
* @return string
|
|
*/
|
|
protected function _normalizeId($value)
|
|
{
|
|
$prefix = get_class($this);
|
|
$prefix = strtolower(trim(substr($prefix, strrpos($prefix, '_')), '_'));
|
|
|
|
return $prefix . '-' . $value;
|
|
}
|
|
|
|
// Static methods:
|
|
|
|
/**
|
|
* Sets default ACL to use if another ACL is not explicitly set
|
|
*
|
|
* @param Zend_Acl $acl [optional] ACL object. Default is null, which
|
|
* sets no ACL object.
|
|
* @return void
|
|
*/
|
|
public static function setDefaultAcl(Zend_Acl $acl = null)
|
|
{
|
|
self::$_defaultAcl = $acl;
|
|
}
|
|
|
|
/**
|
|
* Sets default ACL role(s) to use when iterating pages if not explicitly
|
|
* set later with {@link setRole()}
|
|
*
|
|
* @param midex $role [optional] role to set. Expects null,
|
|
* string, or an instance of
|
|
* {@link Zend_Acl_Role_Interface}.
|
|
* Default is null, which sets no default
|
|
* role.
|
|
* @throws Zend_View_Exception if role is invalid
|
|
* @return void
|
|
*/
|
|
public static function setDefaultRole($role = null)
|
|
{
|
|
if (null === $role ||
|
|
is_string($role) ||
|
|
$role instanceof Zend_Acl_Role_Interface) {
|
|
self::$_defaultRole = $role;
|
|
} else {
|
|
require_once 'Zend/View/Exception.php';
|
|
throw new Zend_View_Exception(
|
|
'$role must be null|string|Zend_Acl_Role_Interface');
|
|
}
|
|
}
|
|
}
|