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Author: phpnut Date: 8:13:45 PM, Friday, October 28, 2005 Message: adding version text file [1257] Author: phpnut Date: 8:03:24 PM, Friday, October 28, 2005 Message: small typo in last commit [1256] Author: phpnut Date: 7:16:50 PM, Friday, October 28, 2005 Message: Added fix for a self join of 1 to 1 associations. This is automatic and adds Child_ to the joined class for hasOne or belongsTo. Scaffold is updated to work with this change. You will have to consider the Child_ prefix when working with self joins. [1253] Author: phpnut Date: 4:07:55 PM, Friday, October 28, 2005 Message: Fixed problem with session cookies being set for each path in the URL. Added char to switch in Controller::generateFieldNames() [1252] Author: phpnut Date: 1:59:49 PM, Friday, October 28, 2005 Message: Updated routes.php.default with change to route case. Removed debug code I had added to Model::findAll [1251] Author: phpnut Date: 1:51:00 PM, Friday, October 28, 2005 Message: Added a fix for class already defined error. Updated core.php docblock with level 3 setting for DEBUG. Change instances of AppController to Controller for loading error messages. Updated 404 errors to use default layout [1250] Author: phpnut Date: 1:34:08 PM, Friday, October 28, 2005 Message: renaming error or error404 [1249] Author: phpnut Date: 1:32:51 PM, Friday, October 28, 2005 Message: moving error.thtml to errors directory git-svn-id: https://svn.cakephp.org/repo/trunk/cake@1259 3807eeeb-6ff5-0310-8944-8be069107fe0
642 lines
No EOL
17 KiB
PHP
642 lines
No EOL
17 KiB
PHP
<?php
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/* SVN FILE: $Id$ */
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/**
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* Methods for displaying presentation data
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*
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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) 2005, CakePHP Authors/Developers
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*
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* Author(s): Michal Tatarynowicz aka Pies <tatarynowicz@gmail.com>
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* Larry E. Masters aka PhpNut <nut@phpnut.com>
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* Kamil Dzielinski aka Brego <brego.dk@gmail.com>
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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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* @author CakePHP Authors/Developers
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* @copyright Copyright (c) 2005, CakePHP Authors/Developers
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* @link https://trac.cakephp.org/wiki/Authors Authors/Developers
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* @package cake
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* @subpackage cake.cake.libs.view
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* @since CakePHP v 0.10.0.1076
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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 libraries.
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*/
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uses('object', DS.'view'.DS.'helper');
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/**
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* View, the V in the MVC triad.
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*
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* Class holding methods for displaying presentation data.
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*
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* @package cake
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* @subpackage cake.cake.libs.view
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* @since CakePHP v 0.10.0.1076
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*/
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class View extends Object
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{
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/**
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* Name of the controller.
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*
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* @var string Name of controller
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* @access public
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*/
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var $name = null;
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/**
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* Stores the current URL (for links etc.)
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*
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* @var string Current URL
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*/
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var $here = null;
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/**
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* Not used. 2005-09
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*
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* @var unknown_type
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* @access public
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*/
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var $parent = null;
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/**
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* Action to be performed.
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*
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* @var string Name of action
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* @access public
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*/
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var $action = null;
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/**
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* An array of names of models the particular controller wants to use.
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*
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* @var mixed A single name as a string or a list of names as an array.
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* @access protected
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*/
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var $uses = false;
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/**
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* An array of names of built-in helpers to include.
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*
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* @var mixed A single name as a string or a list of names as an array.
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* @access protected
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*/
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var $helpers = array('Html');
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/**
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* Path to View.
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*
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* @var string Path to View
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*/
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var $viewPath;
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/**
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* Variables for the view
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*
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* @var array
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* @access private
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*/
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var $_viewVars = array();
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/**
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* Title HTML element of this View.
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*
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* @var boolean
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* @access private
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*/
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var $pageTitle = false;
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/**
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* An array of model objects.
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*
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* @var array Array of model objects.
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* @access public
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*/
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var $models = array();
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/**
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* Path parts for creating links in views.
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*
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* @var string Base URL
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* @access public
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*/
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var $base = null;
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/**
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* Name of layout to use with this View.
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*
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* @var string
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* @access public
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*/
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var $layout = 'default';
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/**
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* Turns on or off Cake's conventional mode of rendering views. On by default.
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*
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* @var boolean
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* @access public
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*/
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var $autoRender = true;
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/**
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* Turns on or off Cake's conventional mode of finding layout files. On by default.
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*
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* @var boolean
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* @access public
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*/
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var $autoLayout = true;
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/**
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* Array of parameter data
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*
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* @var array Parameter data
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*/
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var $params;
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/**
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* True when the view has been rendered.
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*
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* @var boolean
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*/
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var $hasRendered = null;
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/**
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* Enter description here...
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*
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* @var boolean
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*/
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var $controller = null;
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/**
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* Constructor
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*
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* @return View
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*/
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function View(&$controller)
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{
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$this->controller =& $controller;
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$this->_viewVars =& $this->controller->_viewVars;
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$this->action =& $this->controller->action;
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$this->autoLayout =& $this->controller->autoLayout;
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$this->autoRender =& $this->controller->autoRender;
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$this->base =& $this->controller->base;
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$this->webroot =& $this->controller->webroot;
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$this->helpers =& $this->controller->helpers;
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$this->here =& $this->controller->here;
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$this->layout =& $this->controller->layout;
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$this->modelNames =& $this->controller->modelNames;
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$this->name =& $this->controller->name;
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$this->pageTitle =& $this->controller->pageTitle;
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$this->parent =& $this->controller->parent;
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$this->viewPath =& $this->controller->viewPath;
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$this->params =& $this->controller->params;
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$this->data =& $this->controller->data;
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$this->displayFields =& $this->controller->displayFields;
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}
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/**
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* Returns a view instance (singleton)
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*
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* @return object
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*/
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function getInstance()
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{
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static $instance;
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if (!isset($instance))
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{
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$instance[0] =& new View();
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}
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return $instance[0];
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}
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/**
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* Renders view for given action and layout. If $file is given, that is used
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* for a view filename (e.g. customFunkyView.thtml).
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*
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* @param string $action Name of action to render for
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* @param string $layout Layout to use
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* @param string $file Custom filename for view
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*/
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function render($action=null, $layout=null, $file=null)
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{
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if (isset($this->hasRendered) && $this->hasRendered)
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{
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return true;
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}
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else
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{
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$this->hasRendered = false;
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}
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$this->autoRender = false;
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if (!$action)
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{
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$action = $this->action;
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}
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if ($layout)
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{
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$this->setLayout($layout);
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}
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$viewFileName = $file? $file: $this->_getViewFileName($action);
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if (!is_file($viewFileName))
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{
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if (strtolower(get_class($this)) == 'template')
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{
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return array('action' => $action, 'layout' => $layout, 'viewFn' => $viewFileName);
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}
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// check to see if the missing view is due to a custom missingAction
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if (strpos($action, 'missingAction') !== false)
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{
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$errorAction = 'missingAction';
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}
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else
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{
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$errorAction = 'missingView';
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}
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// check for controller-level view handler
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foreach(array($this->name, 'errors') as $viewDir)
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{
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$errorAction =Inflector::underscore($errorAction);
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if(file_exists(VIEWS.$viewDir.DS.$errorAction.'.thtml'))
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{
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$missingViewFileName = VIEWS.$viewDir.DS.$errorAction.'.thtml';
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}
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elseif(file_exists(LIBS.'view'.DS.'templates'.DS.$viewDir.DS.$errorAction.'.thtml'))
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{
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$missingViewFileName = LIBS.'view'.DS.'templates'.DS.$viewDir.DS.$errorAction.'.thtml';
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}
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else
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{
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$missingViewFileName = false;
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}
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$missingViewExists = is_file($missingViewFileName);
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if ($missingViewExists)
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{
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break;
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}
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}
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if (strpos($action, 'missingView') === false)
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{
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$controller = $this;
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$controller->missingView = $viewFileName;
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$controller->action = $action;
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call_user_func_array(array(&$controller, 'missingView'), empty($params['pass'])? null: $params['pass']);
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$isFatal = isset($this->isFatal) ? $this->isFatal : false;
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if (!$isFatal)
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{
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$viewFileName = $missingViewFileName;
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}
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}
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else
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{
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$missingViewExists = false;
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}
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if (!$missingViewExists || $isFatal)
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{
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// app/view/errors/missing_view.thtml view is missing!
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if (DEBUG)
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{
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trigger_error(sprintf(ERROR_NO_VIEW, $action, $viewFileName), E_USER_ERROR);
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}
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else
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{
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$this->error('404', 'Not found', sprintf(ERROR_404, '', "missing view \"{$action}\""));
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}
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die();
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}
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}
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if ($viewFileName && !$this->hasRendered)
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{
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$out = $this->_render($viewFileName, $this->_viewVars, 0);
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if ($out !== false)
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{
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if ($this->layout && $this->autoLayout)
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{
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$out = $this->renderLayout($out);
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}
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print $out;
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$this->hasRendered = true;
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}
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else
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{
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$out = $this->_render($viewFileName, $this->_viewVars, false);
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trigger_error(sprintf(ERROR_IN_VIEW, $viewFileName, $out), E_USER_ERROR);
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}
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return true;
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}
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}
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/**
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* Renders a piece of PHP with provided parameters and returns HTML, XML, or any other string.
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*
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* This realizes the concept of Elements, (or "partial layouts")
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* and the $params array is used to send data to be used in the
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* Element.
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*
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* @param string $name Name of template file in the /app/views/elements/ folder
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* @param array $params Array of data to be made available to the for rendered view (i.e. the Element)
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* @return string Rendered output
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*/
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function renderElement($name, $params=array())
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{
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$fn = ELEMENTS.$name.'.thtml';
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if (!file_exists($fn))
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{
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return "(Error rendering {$name})";
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}
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return $this->_render($fn, array_merge($this->_viewVars, $params));
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}
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/**
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* Renders a layout. Returns output from _render(). Returns false on error.
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*
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* @param string $content_for_layout Content to render in a view, wrapped by the surrounding layout.
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* @return mixed Rendered output, or false on error
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*/
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function renderLayout($content_for_layout)
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{
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$layout_fn = $this->_getLayoutFileName();
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$data_for_layout = array_merge($this->_viewVars, array(
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'title_for_layout'=>$this->pageTitle !== false? $this->pageTitle: Inflector::humanize($this->viewPath),
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'content_for_layout'=>$content_for_layout));
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if (is_file($layout_fn))
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{
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$out = $this->_render($layout_fn, $data_for_layout);
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if ($out === false)
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{
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$out = $this->_render($layout_fn, $data_for_layout, false);
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trigger_error(sprintf(ERROR_IN_LAYOUT, $layout_fn, $out), E_USER_ERROR);
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return false;
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}
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else
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{
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return $out;
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}
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}
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else
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{
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trigger_error(sprintf(ERROR_NO_LAYOUT, $this->layout, $layout_fn), E_USER_ERROR);
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return false;
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}
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}
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/**
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* Sets layout to be used when rendering.
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*
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* @param string $layout
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*/
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function setLayout($layout)
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{
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$this->layout = $layout;
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}
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/**
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* Displays an error page to the user. Uses layouts/error.html to render the page.
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*
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* @param int $code Error code (for instance: 404)
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* @param string $name Name of the error (for instance: Not Found)
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* @param string $message Error message as a web page
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*/
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function error ($code, $name, $message)
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{
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header ("HTTP/1.0 {$code} {$name}");
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print ($this->_render(VIEWS.'layouts/error.thtml', array('code'=>$code,'name'=>$name,'message'=>$message)));
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}
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/**
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* Renders the Missing View web page.
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*
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*/
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function missingView()
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{
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//We are simulating action call below, this is not a filename!
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$this->autoLayout = true;
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$this->missingView = $this->name;
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$this->render('../errors/missingView');
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}
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/**************************************************************************
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* Private methods.
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*************************************************************************/
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/**
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* Returns filename of given action's template file (.thtml) as a string. CamelCased action names will be under_scored! This means that you can have LongActionNames that refer to long_action_names.thtml views.
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*
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* @param string $action Controller action to find template filename for
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* @return string Template filename
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* @access private
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*/
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function _getViewFileName($action)
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{
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$action = Inflector::underscore($action);
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$viewFileName = VIEWS.$this->viewPath.DS.$action.'.thtml';
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if(file_exists(VIEWS.$this->viewPath.DS.$action.'.thtml'))
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{
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$viewFileName = VIEWS.$this->viewPath.DS.$action.'.thtml';
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}
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elseif(file_exists(LIBS.'view'.DS.'templates'.DS.'errors'.DS.$action.'.thtml'))
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{
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$viewFileName = LIBS.'view'.DS.'templates'.DS.'errors'.DS.$action.'.thtml';
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}
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elseif(file_exists(LIBS.'view'.DS.'templates'.DS.$this->viewPath.DS.$action.'.thtml'))
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{
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$viewFileName = LIBS.'view'.DS.'templates'.DS.$this->viewPath.DS.$action.'.thtml';
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}
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$viewPath = explode(DS, $viewFileName);
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$i = array_search('..', $viewPath);
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unset($viewPath[$i-1]);
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unset($viewPath[$i]);
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$return = '/'.implode('/', $viewPath);
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return $return;
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}
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/**
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* Returns layout filename for this template as a string.
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*
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* @return string Filename for layout file (.thtml).
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* @access private
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*/
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function _getLayoutFileName()
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{
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if(file_exists(LAYOUTS."{$this->layout}.thtml"))
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{
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$layoutFileName = LAYOUTS."{$this->layout}.thtml";
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}
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else if(file_exists(LIBS.'view'.DS.'templates'.DS."layouts".DS."{$this->layout}.thtml"))
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{
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$layoutFileName = LIBS.'view'.DS.'templates'.DS."layouts".DS."{$this->layout}.thtml";
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}
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return $layoutFileName;
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}
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/**
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* Renders and returns output for given view filename with its
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* array of data.
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*
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* @param string $___viewFn Filename of the view
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* @param array $___data_for_view Data to include in rendered view
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* @param boolean $___play_safe If set to false, the include() of the $__viewFn is done without suppressing output of errors
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* @return string Rendered output
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* @access private
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*/
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function _render($___viewFn, $___data_for_view, $___play_safe = true)
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{
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/**
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* Fetching helpers
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*/
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if ($this->helpers !== false)
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{
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$loadedHelpers = array();
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$loadedHelpers = $this->_loadHelpers($loadedHelpers, $this->helpers);
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foreach(array_keys($loadedHelpers) as $helper)
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{
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$replace = strtolower(substr($helper, 0, 1));
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$camelBackedHelper = preg_replace('/\\w/', $replace, $helper, 1);
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${$camelBackedHelper} =& $loadedHelpers[$helper];
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if(isset(${$camelBackedHelper}->helpers) && is_array(${$camelBackedHelper}->helpers))
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{
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foreach(${$camelBackedHelper}->helpers as $subHelper)
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{
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${$camelBackedHelper}->{$subHelper} =& $loadedHelpers[$subHelper];
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}
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}
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}
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}
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extract($___data_for_view, EXTR_SKIP); # load all view variables
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/**
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* Local template variables.
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*/
|
|
$BASE = $this->base;
|
|
$params = &$this->params;
|
|
$page_title = $this->pageTitle;
|
|
|
|
/**
|
|
* Start caching output (eval outputs directly so we need to cache).
|
|
*/
|
|
ob_start();
|
|
|
|
/**
|
|
* Include the template.
|
|
*/
|
|
$___play_safe? @include($___viewFn): include($___viewFn);
|
|
|
|
$out = ob_get_clean();
|
|
|
|
return $out;
|
|
}
|
|
|
|
/**
|
|
* Loads helpers, with their dependencies.
|
|
*
|
|
* @param array $loaded List of helpers that are already loaded.
|
|
* @param array $helpers List of helpers to load.
|
|
* @return array
|
|
*/
|
|
function &_loadHelpers(&$loaded, $helpers) {
|
|
|
|
foreach ($helpers as $helper)
|
|
{
|
|
if(in_array($helper, array_keys($loaded)) !== true)
|
|
{
|
|
$helperFn = Inflector::underscore($helper).'.php';
|
|
|
|
if(file_exists(HELPERS.$helperFn))
|
|
{
|
|
$helperFn = HELPERS.$helperFn;
|
|
}
|
|
else if(file_exists(LIBS.'view'.DS.'helpers'.DS.$helperFn))
|
|
{
|
|
$helperFn = LIBS.'view'.DS.'helpers'.DS.$helperFn;
|
|
}
|
|
|
|
$helperCn = $helper.'Helper';
|
|
$replace = strtolower(substr($helper, 0, 1));
|
|
$camelBackedHelper = preg_replace('/\\w/', $replace, $helper, 1);
|
|
|
|
if (is_file($helperFn))
|
|
{
|
|
require_once $helperFn;
|
|
if(class_exists($helperCn)===true)
|
|
{
|
|
${$camelBackedHelper} =& new $helperCn;
|
|
${$camelBackedHelper}->base = $this->base;
|
|
${$camelBackedHelper}->webroot = $this->webroot;
|
|
${$camelBackedHelper}->here = $this->here;
|
|
${$camelBackedHelper}->params = $this->params;
|
|
${$camelBackedHelper}->action = $this->action;
|
|
${$camelBackedHelper}->data = $this->data;
|
|
|
|
if(!empty($this->validationErrors))
|
|
{
|
|
${$camelBackedHelper}->validationErrors = $this->validationErrors;
|
|
}
|
|
$loaded[$helper] =& ${$camelBackedHelper};
|
|
|
|
// Find and load helper dependencies
|
|
if (isset(${$camelBackedHelper}->helpers) && is_array(${$camelBackedHelper}->helpers))
|
|
{
|
|
$loaded =& $this->_loadHelpers($loaded, ${$camelBackedHelper}->helpers);
|
|
}
|
|
}
|
|
else
|
|
{
|
|
$error =& new Controller();
|
|
$error->autoLayout = true;
|
|
$error->base = $this->base;
|
|
call_user_func_array(array(&$error, 'missingHelperClass'), $helper);
|
|
exit();
|
|
}
|
|
}
|
|
else
|
|
{
|
|
$error =& new Controller();
|
|
$error->autoLayout = true;
|
|
$error->base = $this->base;
|
|
call_user_func_array(array(&$error, 'missingHelperFile'), Inflector::underscore($helper));
|
|
exit();
|
|
}
|
|
}
|
|
}
|
|
|
|
return $loaded;
|
|
}
|
|
}
|
|
|
|
?>
|