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42198541d3
git-svn-id: https://svn.cakephp.org/repo/branches/1.2.x.x@4152 3807eeeb-6ff5-0310-8944-8be069107fe0
427 lines
No EOL
10 KiB
PHP
427 lines
No EOL
10 KiB
PHP
<?php
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/* SVN FILE: $Id$ */
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/**
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* Backend for helpers.
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*
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* Internal methods for the Helpers.
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*
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* PHP versions 4 and 5
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*
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* CakePHP : Rapid Development Framework <http://www.cakephp.org/>
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* Copyright (c) 2006, Cake Software Foundation, Inc.
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* 1785 E. Sahara Avenue, Suite 490-204
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* Las Vegas, Nevada 89104
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*
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* Licensed under The MIT License
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* Redistributions of files must retain the above copyright notice.
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*
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* @filesource
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* @copyright Copyright (c) 2006, Cake Software Foundation, Inc.
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* @link http://www.cakefoundation.org/projects/info/cakephp CakePHP Project
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* @package cake
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* @subpackage cake.cake.libs.view
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* @since CakePHP v 0.2.9
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* @version $Revision$
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* @modifiedby $LastChangedBy$
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* @lastmodified $Date$
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* @license http://www.opensource.org/licenses/mit-license.php The MIT License
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*/
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/**
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* Included libs
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*/
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uses('overloadable');
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/**
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* Backend for helpers.
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*
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* Long description for class
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*
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* @package cake
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* @subpackage cake.cake.libs.view
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*/
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class Helper extends Overloadable {
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/**
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* List of helpers used by this helper
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*
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* @var array
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*/
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var $helpers = null;
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/**
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* Base URL
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*
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* @var string
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*/
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var $base = null;
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/**
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* Webroot path
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*
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* @var string
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*/
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var $webroot = null;
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/**
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* Theme name
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*
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* @var string
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*/
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var $themeWeb = null;
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/**
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* URL to current action.
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*
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* @var string
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*/
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var $here = null;
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/**
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* Parameter array.
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*
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* @var array
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*/
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var $params = array();
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/**
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* Current action.
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*
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* @var string
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*/
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var $action = null;
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/**
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* Plugin path
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*
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* @var string
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*/
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var $plugin = null;
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/**
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* POST data for models
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*
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* @var array
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*/
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var $data = null;
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/**
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* List of named arguments
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*
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* @var array
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*/
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var $namedArgs = null;
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/**
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* URL argument separator character
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*
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* @var string
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*/
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var $argSeparator = null;
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/**
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* Contains model validation errors of form post-backs
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*
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* @access public
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* @var array
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*/
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var $validationErrors = null;
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/**
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* Holds tag templates.
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*
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* @access public
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* @var array
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*/
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var $tags = array();
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/**
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* Default overload methods
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*
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* @access protected
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*/
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function get__($name) {}
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function set__($name, $value) {}
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function __call__($method, $params) {
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trigger_error(sprintf(__('Method %1$s::%2$s does not exist', true), get_class($this), $method), E_USER_ERROR);
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}
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/**
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* Parses tag templates into $this->tags.
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*
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* @return void
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*/
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function loadConfig() {
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if (file_exists(APP . 'config' . DS . 'tags.php')) {
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require(APP . 'config' . DS . 'tags.php');
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$this->tags = am($this->tags, $tags);
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}
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return $this->tags;
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}
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/**
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* Finds URL for specified action.
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*
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* Returns an URL pointing to a combination of controller and action. Param
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* $url can be:
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* + Empty - the method will find adress to actuall controller/action.
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* + '/' - the method will find base URL of application.
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* + A combination of controller/action - the method will find url for it.
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*
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* @param mixed $url Cake-relative URL, like "/products/edit/92" or "/presidents/elect/4"
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* or an array specifying any of the following: 'controller', 'action',
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* and/or 'plugin', in addition to named arguments (keyed array elements),
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* and standard URL arguments (indexed array elements)
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* @param boolean $full If true, the full base URL will be prepended to the result
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* @return string Full translated URL with base path.
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*/
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function url($url = null, $full = false) {
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return Router::url($url, $full);
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}
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/**
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* Returns a space-delimited string with items of the $options array. If a
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* key of $options array happens to be one of:
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* + 'compact'
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* + 'checked'
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* + 'declare'
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* + 'readonly'
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* + 'disabled'
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* + 'selected'
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* + 'defer'
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* + 'ismap'
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* + 'nohref'
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* + 'noshade'
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* + 'nowrap'
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* + 'multiple'
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* + 'noresize'
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*
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* And its value is one of:
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* + 1
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* + true
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* + 'true'
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*
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* Then the value will be reset to be identical with key's name.
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* If the value is not one of these 3, the parameter is not output.
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*
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* @param array $options Array of options.
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* @param array $exclude Array of options to be excluded.
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* @param string $insertBefore String to be inserted before options.
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* @param string $insertAfter String to be inserted ater options.
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* @return string
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*/
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function _parseAttributes($options, $exclude = null, $insertBefore = ' ', $insertAfter = null) {
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$minimizedAttributes = array('compact', 'checked', 'declare', 'readonly', 'disabled', 'selected', 'defer', 'ismap', 'nohref', 'noshade', 'nowrap', 'multiple', 'noresize');
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if (!is_array($exclude)) {
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$exclude = array();
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}
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if (is_array($options)) {
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$out = array();
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foreach($options as $key => $value) {
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if (!in_array($key, $exclude)) {
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if (in_array($key, $minimizedAttributes) && ($value === 1 || $value === true || $value === 'true' || in_array($value, $minimizedAttributes))) {
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$value = $key;
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} elseif(in_array($key, $minimizedAttributes)) {
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continue;
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}
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$out[] = "{$key}=\"{$value}\"";
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}
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}
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$out = join(' ', $out);
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return $out ? $insertBefore . $out . $insertAfter : null;
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} else {
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return $options ? $insertBefore . $options . $insertAfter : null;
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}
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}
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/**
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* @deprecated Name changed to '_parseAttributes'. Version 0.9.2.
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* @see HtmlHelper::_parseAttributes()
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* @param array $options Array of options.
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* @param array $exclude Array of options to be excluded.
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* @param string $insertBefore String to be inserted before options.
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* @param string $insertAfter String to be inserted ater options.
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* @return string
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*/
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function parseHtmlOptions($options, $exclude = null, $insertBefore = ' ', $insertAfter = null) {
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if (!is_array($exclude)) {
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$exclude = array();
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}
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if (is_array($options)) {
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$out = array();
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foreach($options as $k => $v) {
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if (!in_array($k, $exclude)) {
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$out[] = "{$k}=\"{$v}\"";
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}
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}
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$out = join(' ', $out);
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return $out ? $insertBefore . $out . $insertAfter : null;
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} else {
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return $options ? $insertBefore . $options . $insertAfter : null;
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}
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}
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/**
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* Sets this helper's model and field properties to the slash-separated value-pair in $tagValue.
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*
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* @param string $tagValue A field name, like "Modelname/fieldname"
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*/
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function setFormTag($tagValue) {
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$view =& ClassRegistry::getObject('view');
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$parts = explode("/", $tagValue);
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if (count($parts) == 1) {
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$view->field = $parts[0];
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} elseif (count($parts) == 2 && is_numeric($parts[0])) {
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$view->modelId = $parts[0];
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$view->field = $parts[1];
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} elseif (count($parts) == 2) {
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$view->model = $parts[0];
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$view->field = $parts[1];
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} elseif (count($parts) == 3) {
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$view->model = $parts[0];
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$view->modelId = $parts[1];
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$view->field = $parts[2];
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}
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}
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/**
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* Gets the currently-used model of the rendering context.
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*
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* @return string
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*/
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function model() {
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$view =& ClassRegistry::getObject('view');
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return $view->model;
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}
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/**
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* Gets the currently-used model field of the rendering context.
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*
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* @return string
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*/
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function field() {
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$view =& ClassRegistry::getObject('view');
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return $view->field;
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}
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/**
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* Returns false if given FORM field has no errors. Otherwise it returns the constant set in the array Model->validationErrors.
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*
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* @param string $model Model name as string
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* @param string $field Fieldname as string
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* @return boolean True on errors.
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*/
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function tagIsInvalid($model = null, $field = null) {
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if ($model == null) {
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$model = $this->model();
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}
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if ($field == null) {
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$field = $this->field();
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}
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return empty($this->validationErrors[$model][$field]) ? 0 : $this->validationErrors[$model][$field];
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}
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/**
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* Generates a DOM ID for the selected element, if one is not set.
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*
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* @param array $options
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* @param string $id
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* @return array
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*/
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function domId($options = array(), $id = 'id') {
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if (is_array($options) && !isset($options[$id])) {
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$options[$id] = $this->model() . Inflector::camelize($this->field());
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}
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return $options;
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}
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/**
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* Gets the data for the current tag
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*
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* @param array $options
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* @param string $key
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* @return array
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*/
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function __value($options = array(), $field = null, $key = 'value') {
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if ($options === null) {
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$options = array();
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} elseif (is_string($options)) {
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$field = $options;
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$options = 0;
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}
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if ($field != null) {
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$this->setFormTag($field);
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}
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if (is_array($options) && isset($options[$key])) {
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return $options;
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}
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$result = null;
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if (isset($this->data[$this->model()][$this->field()])) {
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$result = h($this->data[$this->model()][$this->field()]);
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}
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if (is_array($options)) {
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$options[$key] = $result;
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return $options;
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} else {
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return $result;
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}
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}
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/**
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* Adds the given class to the element options
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*
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* @param array $options
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* @param string $class
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* @param string $key
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* @return array
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*/
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function addClass($options = array(), $class = null, $key = 'class') {
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if (isset($options[$key]) && trim($options[$key]) != '') {
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$options[$key] .= ' ' . $class;
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} else {
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$options[$key] = $class;
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}
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return $options;
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}
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/**
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* Returns a string generated by a helper method
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*
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* This method can be overridden in subclasses to do generalized output post-processing
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*
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* @param string $str String to be output.
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* @return string
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*/
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function output($str) {
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return $str;
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}
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/**
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* Assigns values to tag templates.
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*
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* Finds a tag template by $keyName, and replaces $values's keys with
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* $values's keys.
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*
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* @param string $keyName Name of the key in the tag array.
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* @param array $values Values to be inserted into tag.
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* @return string Tag with inserted values.
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*/
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function assign($keyName, $values) {
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return str_replace('%%' . array_keys($values) . '%%', array_values($values), $this->tags[$keyName]);
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}
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/**
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* Before render callback. Overridden in subclasses.
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*
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* @return void
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*/
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function beforeRender() {
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}
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/**
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* After render callback. Overridden in subclasses.
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*
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* @return void
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*/
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function afterRender() {
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}
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/**
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* Before layout callback. Overridden in subclasses.
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*
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* @return void
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*/
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function beforeLayout() {
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}
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/**
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* After layout callback. Overridden in subclasses.
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*
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* @return void
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*/
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function afterLayout() {
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}
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}
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?>
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