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95 lines
2.8 KiB
PHP
95 lines
2.8 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) 2005-2014 Zend Technologies USA Inc. (http://www.zend.com)
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* @version $Id$
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* @license http://framework.zend.com/license/new-bsd New BSD License
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*/
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/** Zend_View_Helper_Abstract.php */
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/**
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* Helper for declaring default values of template variables
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*
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* @package Zend_View
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* @subpackage Helper
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* @copyright Copyright (c) 2005-2014 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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class Zend_View_Helper_DeclareVars extends Zend_View_Helper_Abstract
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{
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/**
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* The view object that created this helper object.
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* @var Zend_View
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*/
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public $view;
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/**
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* Declare template vars to set default values and avoid notices when using strictVars
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*
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* Primarily for use when using {@link Zend_View_Abstract::strictVars() Zend_View strictVars()},
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* this helper can be used to declare template variables that may or may
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* not already be set in the view object, as well as to set default values.
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* Arrays passed as arguments to the method will be used to set default
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* values; otherwise, if the variable does not exist, it is set to an empty
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* string.
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*
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* Usage:
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* <code>
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* $this->declareVars(
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* 'varName1',
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* 'varName2',
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* array('varName3' => 'defaultValue',
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* 'varName4' => array()
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* )
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* );
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* </code>
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*
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* @param string|array variable number of arguments, all string names of variables to test
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* @return void
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*/
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public function declareVars()
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{
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$args = func_get_args();
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foreach($args as $key) {
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if (is_array($key)) {
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foreach ($key as $name => $value) {
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$this->_declareVar($name, $value);
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}
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} else if (!isset($view->$key)) {
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$this->_declareVar($key);
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}
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}
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}
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/**
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* Set a view variable
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*
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* Checks to see if a $key is set in the view object; if not, sets it to $value.
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*
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* @param string $key
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* @param string $value Defaults to an empty string
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* @return void
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*/
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protected function _declareVar($key, $value = '')
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{
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if (!isset($this->view->$key)) {
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$this->view->$key = $value;
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}
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}
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}
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