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cakephp2-php8/cake/libs/view/view.php
nate 6535c4936c Fixing code formatting in View 
git-svn-id: https://svn.cakephp.org/repo/branches/1.2.x.x@3416 3807eeeb-6ff5-0310-8944-8be069107fe0
2006-08-20 22:21:22 +00:00

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<?php
/* SVN FILE: $Id$ */
/**
* Methods for displaying presentation data in the view.
*
*
* PHP versions 4 and 5
*
* CakePHP : Rapid Development Framework <http://www.cakephp.org/>
* Copyright (c) 2006, Cake Software Foundation, Inc.
* 1785 E. Sahara Avenue, Suite 490-204
* Las Vegas, Nevada 89104
*
* Licensed under The MIT License
* Redistributions of files must retain the above copyright notice.
*
* @filesource
* @copyright Copyright (c) 2006, Cake Software Foundation, Inc.
* @link http://www.cakefoundation.org/projects/info/cakephp CakePHP Project
* @package cake
* @subpackage cake.cake.libs.view
* @since CakePHP v 0.10.0.1076
* @version $Revision$
* @modifiedby $LastChangedBy$
* @lastmodified $Date$
* @license http://www.opensource.org/licenses/mit-license.php The MIT License
*/
/**
* Included libraries.
*/
uses (DS . 'view' . DS . 'helper');
/**
* View, the V in the MVC triad.
*
* Class holding methods for displaying presentation data.
*
* @package cake
* @subpackage cake.cake.libs.view
*/
class View extends Object{
/**
* Name of the controller.
*
* @var string Name of controller
* @access public
*/
var $name = null;
/**
* Stores the current URL (for links etc.)
*
* @var string Current URL
*/
var $here = null;
/**
* Not used. 2006-09
*
* @var unknown_type
* @access public
*/
var $parent = null;
/**
* Action to be performed.
*
* @var string Name of action
* @access public
*/
var $action = null;
/**
* An array of names of models the particular controller wants to use.
*
* @var mixed A single name as a string or a list of names as an array.
* @access protected
*/
var $uses = false;
/**
* An array of names of built-in helpers to include.
*
* @var mixed A single name as a string or a list of names as an array.
* @access protected
*/
var $helpers = array('Html');
/**
* Path to View.
*
* @var string Path to View
*/
var $viewPath;
/**
* Path to Layout.
*
* @var string Path to Layout
*/
var $layoutPath = '';
/**
* Variables for the view
*
* @var array
* @access private
*/
var $_viewVars = array();
/**
* Title HTML element of this View.
*
* @var boolean
* @access private
*/
var $pageTitle = false;
/**
* An array of model objects.
*
* @var array Array of model objects.
* @access public
*/
var $models = array();
/**
* Path parts for creating links in views.
*
* @var string Base URL
* @access public
*/
var $base = null;
/**
* Name of layout to use with this View.
*
* @var string
* @access public
*/
var $layout = 'default';
/**
* Turns on or off Cake's conventional mode of rendering views. On by default.
*
* @var boolean
* @access public
*/
var $autoRender = true;
/**
* Turns on or off Cake's conventional mode of finding layout files. On by default.
*
* @var boolean
* @access public
*/
var $autoLayout = true;
/**
* Array of parameter data
*
* @var array Parameter data
*/
var $params;
/**
* True when the view has been rendered.
*
* @var boolean
*/
var $hasRendered = null;
/**
* Reference to the Controller for this view.
*
* @var Controller
*/
var $controller = null;
/**
* Array of loaded view helpers.
*
* @var array
*/
var $loaded = array();
/**
* File extension. Defaults to Cake's conventional ".thtml".
*
* @var array
*/
var $ext = '.thtml';
/**
* Sub-directory for this view file.
*
* @var string
*/
var $subDir = null;
/**
* Enter description here... Themes. New in Cake RC4.
*
* @var array
*/
var $themeWeb = null;
/**
* Plugin name. A Plugin is a sub-application. New in Cake RC4.
*
* @link http://wiki.cakephp.org/docs:plugins
* @var string
*/
var $plugin = null;
/**
* Controller URL-generation data
*
* @var mixed
*/
var $namedArgs = null;
/**
* Controller URL-generation data
*
* @var string
*/
var $argSeparator = null;
/**
* List of variables to collect from the associated controller
*
* @var array
* @access protected
*/
var $__passedVars = array('_viewVars', 'action', 'autoLayout', 'autoRender', 'ext', 'base', 'webroot', 'helpers', 'here', 'layout', 'modelNames', 'name', 'pageTitle', 'layoutPath', 'viewPath', 'params', 'data', 'webservices', 'plugin', 'namedArgs', 'argSeparator');
/**
* Constructor
*
* @return View
*/
function __construct(&$controller) {
if(is_object($controller)) {
$this->controller =& $controller;
$c = count($this->__passedVars);
for ($j = 0; $j < $c; $j++) {
$var = $this->__passedVars[$j];
$this->{$var} = $controller->{$var};
}
}
parent::__construct();
}
/**
* Renders view for given action and layout. If $file is given, that is used
* for a view filename (e.g. customFunkyView.thtml).
*
* @param string $action Name of action to render for
* @param string $layout Layout to use
* @param string $file Custom filename for view
*/
function render($action = null, $layout = null, $file = null) {
if (isset($this->hasRendered) && $this->hasRendered) {
return true;
} else {
$this->hasRendered = false;
}
if (!$action) {
$action = $this->action;
}
if ($layout) {
$this->layout = $layout;
}
if ($file) {
$viewFileName = $file;
} else {
$viewFileName = $this->_getViewFileName($action);
}
if (!is_null($this->plugin) && is_null($file)) {
return $this->pluginView($action, $layout);
}
if (!is_file($viewFileName) && !fileExistsInPath($viewFileName) || $viewFileName === '/' || $viewFileName === '\\') {
if (strpos($action, 'missingAction') !== false) {
$errorAction = 'missingAction';
} else {
$errorAction = 'missingView';
}
foreach(array($this->name, 'errors') as $viewDir) {
$errorAction = Inflector::underscore($errorAction);
if (file_exists(VIEWS . $viewDir . DS . $errorAction . $this->ext)) {
$missingViewFileName = VIEWS . $viewDir . DS . $errorAction . $this->ext;
} elseif($missingViewFileName = fileExistsInPath(LIBS . 'view' . DS . 'templates' . DS . $viewDir . DS . $errorAction . '.thtml')) {
} else {
$missingViewFileName = false;
}
$missingViewExists = is_file($missingViewFileName);
if ($missingViewExists) {
break;
}
}
if (strpos($action, 'missingView') === false) {
return $this->cakeError('missingView', array(array('className' => $this->controller->name,
'action' => $action,
'file' => $viewFileName,
'base' => $this->base
)));
$isFatal = isset($this->isFatal) ? $this->isFatal : false;
if (!$isFatal) {
$viewFileName = $missingViewFileName;
}
} else {
$missingViewExists = false;
}
if (!$missingViewExists || $isFatal) {
if (DEBUG) {
trigger_error(sprintf(__("No template file for view %s (expected %s), create it first'"), $action, $viewFileName), E_USER_ERROR);
} else {
$this->error('404', 'Not found', sprintf("The requested address %s was not found on this server.", '', "missing view \"{$action}\""));
}
die();
}
}
if ($viewFileName && !$this->hasRendered) {
if (substr($viewFileName, -5) === 'thtml') {
$out = View::_render($viewFileName, $this->_viewVars);
} else {
$out = $this->_render($viewFileName, $this->_viewVars);
}
if ($out !== false) {
if ($this->layout && $this->autoLayout) {
$out = $this->renderLayout($out);
}
print $out;
$this->hasRendered = true;
} else {
$out = $this->_render($viewFileName, $this->_viewVars);
trigger_error(sprintf(__("Error in view %s, got: <blockquote>%s</blockquote>"), $viewFileName, $out), E_USER_ERROR);
}
return true;
}
}
/**
* Renders a piece of PHP with provided parameters and returns HTML, XML, or any other string.
*
* This realizes the concept of Elements, (or "partial layouts")
* and the $params array is used to send data to be used in the
* Element.
*
* @link http://wiki.cakephp.org/docs:view:renderelement
* @param string $name Name of template file in the/app/views/elements/ folder
* @param array $params Array of data to be made available to the for rendered view (i.e. the Element)
* @return string Rendered output
*/
function renderElement($name, $params = array()) {
$fn = ELEMENTS . $name . $this->ext;
if (!is_null($this->plugin)) {
if (file_exists(APP . 'plugins' . DS . $this->plugin . DS . 'views' . DS . 'elements' . DS . $name . $this->ext)) {
$fn = APP . 'plugins' . DS . $this->plugin . DS . 'views' . DS . 'elements' . DS . $name . $this->ext;
$params = array_merge_recursive($params, $this->loaded);
return $this->_render($fn, array_merge($this->_viewVars, $params), false);
}
}
if (!file_exists($fn)) {
return "(Error rendering {$name})";
}
$params=array_merge_recursive($params, $this->loaded);
return $this->_render($fn, array_merge($this->_viewVars, $params), false);
}
function element($name) {
return ELEMENTS . $name . $this->ext;
}
/**
* Renders a layout. Returns output from _render(). Returns false on error.
*
* @param string $content_for_layout Content to render in a view, wrapped by the surrounding layout.
* @return mixed Rendered output, or false on error
*/
function renderLayout($content_for_layout) {
$layout_fn = $this->_getLayoutFileName();
if (DEBUG > 2 && $this->controller != null) {
$debug = View::_render(LIBS . 'view' . DS . 'templates' . DS . 'elements' . DS . 'dump.thtml', array('controller' => $this->controller), false);
} else {
$debug = '';
}
if ($this->pageTitle !== false) {
$pageTitle = $this->pageTitle;
} else {
$pageTitle = Inflector::humanize($this->viewPath);
}
$data_for_layout = array_merge($this->_viewVars,
array(
'title_for_layout' => $pageTitle,
'content_for_layout' => $content_for_layout,
'cakeDebug' => $debug
)
);
if (is_file($layout_fn)) {
if (empty($this->loaded) && !empty($this->helpers)) {
$loadHelpers = true;
} else {
$loadHelpers = false;
$data_for_layout = array_merge($data_for_layout, $this->loaded);
}
if (substr($layout_fn, -5) === 'thtml') {
$out = View::_render($layout_fn, $data_for_layout, $loadHelpers, true);
} else {
$out = $this->_render($layout_fn, $data_for_layout, $loadHelpers);
}
if ($out === false) {
$out = $this->_render($layout_fn, $data_for_layout);
trigger_error(sprintf(__("Error in layout %s, got: <blockquote>%s</blockquote>"), $layout_fn, $out), E_USER_ERROR);
return false;
} else {
return $out;
}
} else {
return $this->cakeError('missingLayout', array(
array(
'layout' => $this->layout,
'file' => $layout_fn,
'base' => $this->base
)
));
}
}
/**
* @deprecated
*/
function setLayout($layout) {
$this->layout = $layout;
}
/**
* Allows a template or element to set a variable that will be available in
* a layout or other element. Analagous to Controller::set.
*
* @param mixed $one A string or an array of data.
* @param mixed $two Value in case $one is a string (which then works as the key).
* Unused if $one is an associative array, otherwise serves as the values to $one's keys.
* @return unknown
*/
function set($one, $two = null) {
$data = null;
if (is_array($one)) {
if (is_array($two)) {
$data = array_combine($one, $two);
} else {
$data = $one;
}
} else {
$data = array($one => $two);
}
if ($data == null) {
return false;
}
foreach($data as $name => $value) {
if ($name == 'title') {
$this->pageTitle = $value;
} else {
$this->_viewVars[$name] = $value;
}
}
}
/**
* Displays an error page to the user. Uses layouts/error.html to render the page.
*
* @param int $code HTTP Error code (for instance: 404)
* @param string $name Name of the error (for instance: Not Found)
* @param string $message Error message as a web page
*/
function error($code, $name, $message) {
header ("HTTP/1.0 {$code} {$name}");
print ($this->_render(VIEWS . 'layouts/error.thtml', array('code' => $code,
'name' => $name,
'message' => $message)));
}
/**************************************************************************
* Private methods.
*************************************************************************/
/**
* 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.
*
* @param string $action Controller action to find template filename for
* @return string Template filename
* @access private
*/
function _getViewFileName($action) {
$action = Inflector::underscore($action);
$paths = Configure::getInstance();
if (!is_null($this->webservices)) {
$type = strtolower($this->webservices) . DS;
} else {
$type = null;
}
$position = strpos($action, '..');
if ($position === false) {
} else {
$action = explode('/', $action);
$i = array_search('..', $action);
unset($action[$i - 1]);
unset($action[$i]);
$action='..' . DS . implode(DS, $action);
}
foreach($paths->viewPaths as $path) {
if (file_exists($path . $this->viewPath . DS . $this->subDir . $type . $action . $this->ext)) {
$viewFileName = $path . $this->viewPath . DS . $this->subDir . $type . $action . $this->ext;
return $viewFileName;
}
}
if ($viewFileName = fileExistsInPath(LIBS . 'view' . DS . 'templates' . DS . 'errors' . DS . $type . $action . '.thtml')) {
} elseif($viewFileName = fileExistsInPath(LIBS . 'view' . DS . 'templates' . DS . $this->viewPath . DS . $type . $action . '.thtml')) {
} else {
$viewFileName = VIEWS . $this->viewPath . DS . $this->subDir . $type . $action . $this->ext;
}
return $viewFileName;
}
/**
* Returns layout filename for this template as a string.
*
* @return string Filename for layout file (.thtml).
* @access private
*/
function _getLayoutFileName() {
if (isset($this->webservices) && !is_null($this->webservices)) {
$type = strtolower($this->webservices) . DS;
} else {
$type = null;
}
if (isset($this->plugin) && !is_null($this->plugin)) {
if (file_exists(APP . 'plugins' . DS . $this->plugin . DS . 'views' . DS . 'layouts' . DS . $this->layout . $this->ext)) {
$layoutFileName = APP . 'plugins' . DS . $this->plugin . DS . 'views' . DS . 'layouts' . DS . $this->layout . $this->ext;
return $layoutFileName;
}
}
if (!empty($this->layoutPath)) {
$path = $this->layoutPath . DS;
if (file_exists(LAYOUTS . $this->subDir . $this->layoutPath . $type . "{$this->layout}{$this->ext}")) {
$layoutFileName = LAYOUTS . $this->subDir . $path . $type . "{$this->layout}{$this->ext}";
} elseif (file_exists(LAYOUTS . $this->subDir . $path . $type . "default{$this->ext}")) {
$layoutFileName = LAYOUTS . $this->subDir . $path . $type . "default{$this->ext}";
} elseif ($layoutFileName = fileExistsInPath(LIBS . 'view' . DS . 'templates' . DS . 'layouts' . DS . $path . "default{$this->ext}")) {
} else {
$layoutFileName = LAYOUTS . $this->subDir . $path . $type . "default{$this->ext}";
}
} else {
if (file_exists(LAYOUTS . $this->subDir . $type . "{$this->layout}$this->ext")) {
$layoutFileName = LAYOUTS . $this->subDir . $type . "{$this->layout}$this->ext";
} elseif($layoutFileName = fileExistsInPath(LIBS . 'view' . DS . 'templates' . DS . 'layouts' . DS . $type . "{$this->layout}.thtml")) {
} else {
$layoutFileName = LAYOUTS . $type . "{$this->layout}$this->ext";
}
}
return $layoutFileName;
}
/**
* Renders and returns output for given view filename with its
* array of data.
*
* @param string $___viewFn Filename of the view
* @param array $___dataForView Data to include in rendered view
* @return string Rendered output
* @access private
*/
function _render($___viewFn, $___dataForView, $loadHelpers = true, $cached = false) {
if ($this->helpers != false && $loadHelpers === true) {
$loadedHelpers = array();
$loadedHelpers = $this->_loadHelpers($loadedHelpers, $this->helpers);
foreach(array_keys($loadedHelpers) as $helper) {
$replace = strtolower(substr($helper, 0, 1));
$camelBackedHelper = preg_replace('/\\w/', $replace, $helper, 1);
${$camelBackedHelper} =& $loadedHelpers[$helper];
if (isset(${$camelBackedHelper}->helpers) && is_array(${$camelBackedHelper}->helpers)) {
foreach(${$camelBackedHelper}->helpers as $subHelper) {
${$camelBackedHelper}->{$subHelper} =& $loadedHelpers[$subHelper];
}
}
$this->loaded[$camelBackedHelper] = (${$camelBackedHelper});
}
}
extract($___dataForView, EXTR_SKIP);
$BASE = $this->base;
$params =& $this->params;
$page_title = $this->pageTitle;
ob_start();
if (DEBUG) {
include ($___viewFn);
} else {
@include ($___viewFn);
}
if ($this->helpers != false && $loadHelpers === true) {
foreach ($loadedHelpers as $helper) {
if (is_object($helper)) {
if (is_subclass_of($helper, 'Helper') || is_subclass_of($helper, 'helper')) {
$helper->afterRender();
}
}
}
}
$out = ob_get_clean();
if (isset($this->loaded['cache']) && ((isset($this->controller) && $this->controller->cacheAction != false)) && (defined('CACHE_CHECK') && CACHE_CHECK === true)) {
if (is_a($this->loaded['cache'], 'CacheHelper')) {
$cache =& $this->loaded['cache'];
if ($cached === true) {
$cache->view = &$this;
}
$cache->base = $this->base;
$cache->here = $this->here;
$cache->action = $this->action;
$cache->controllerName = $this->params['controller'];
$cache->cacheAction = $this->controller->cacheAction;
$cache->cache($___viewFn, $out, $cached);
}
}
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) {
static $tags;
if (empty($tags)) {
$helperTags = new Helper();
$tags = $helperTags->loadConfig();
}
foreach($helpers as $helper) {
$pos = strpos($helper, '/');
if ($pos === false) {
$plugin = $this->plugin;
} else {
$parts = explode('/', $helper);
$plugin = Inflector::underscore($parts['0']);
$helper = $parts['1'];
}
$helperCn = $helper . 'Helper';
if (in_array($helper, array_keys($loaded)) !== true) {
if (!class_exists($helperCn)) {
if (is_null($plugin) || !loadPluginHelper($plugin, $helper)) {
if (!loadHelper($helper)) {
return $this->cakeError('missingHelperFile', array(array(
'helper' => $helper,
'file' => Inflector::underscore($helper) . '.php',
'base' => $this->base
)));
}
}
if (!class_exists($helperCn)) {
return $this->cakeError('missingHelperClass', array(array(
'helper' => $helper,
'file' => Inflector::underscore($helper) . '.php',
'base' => $this->base
)));
}
}
$replace = strtolower(substr($helper, 0, 1));
$camelBackedHelper = preg_replace('/\\w/', $replace, $helper, 1);
${$camelBackedHelper} =& new $helperCn;
${$camelBackedHelper}->view =& $this;
${$camelBackedHelper}->tags = $tags;
$vars = array('base', 'webroot', 'here', 'params', 'action', 'data', 'themeWeb', 'plugin', 'namedArgs', 'argSeparator');
$c = count($vars);
for ($j = 0; $j < $c; $j++) {
${$camelBackedHelper}->{$vars[$j]} = $this->{$vars[$j]};
}
if (!empty($this->validationErrors)) {
${$camelBackedHelper}->validationErrors = $this->validationErrors;
}
$loaded[$helper] =& ${$camelBackedHelper};
if (isset(${$camelBackedHelper}->helpers) && is_array(${$camelBackedHelper}->helpers)) {
$loaded = &$this->_loadHelpers($loaded, ${$camelBackedHelper}->helpers);
}
}
}
return $loaded;
}
/**
* Enter description here...
*
* @param unknown_type $action
* @param unknown_type $layout
* @return unknown
*/
function pluginView($action, $layout) {
$viewFileName = APP . 'plugins' . DS . $this->plugin . DS . 'views' . DS . $this->viewPath . DS . $action . $this->ext;
if (file_exists($viewFileName)) {
$this->render($action, $layout, $viewFileName);
} else {
return $this->cakeError('missingView', array(array(
'className' => $this->controller->name,
'action' => $action,
'file' => $viewFileName,
'base' => $this->base
)));
}
}
function renderCache($filename, $timeStart) {
ob_start();
include ($filename);
if (DEBUG && $this->layout != 'xml') {
echo "<!-- Cached Render Time: " . round(getMicrotime() - $timeStart, 4) . "s -->";
}
$out = ob_get_clean();
if (preg_match('/^<!--cachetime:(\\d+)-->/', $out, $match)) {
if (time() >= $match['1']) {
@unlink($filename);
unset ($out);
return;
} else {
if($this->layout === 'xml'){
header('Content-type: text/xml');
$out = preg_replace('/^<!--cachetime:(\\d+)-->/', '', $out);
}
e($out);
die();
}
}
}
}
?>
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