这基本上就是“我做得对吗？”问题
我知道如何在运行时透明地切换默认/移动版本/管理区域的视图。我想知道你在这种方法中看到的利弊。
主要要求是：
这是我的pseudohelper
class Xrks_Controller_Action_Helper_VrExtension extends Zend_Controller_Action_Helper_Abstract
{
public function postDispatch()
{
if(!$this->_shouldRender()) {
return; //just skip
}
try {
$vr = $this->_getViewRenderer();
$backupView = clone $vr->view;
$this->_setBasePaths(); //set base path(s) through ViewRenderer::initView($path)
$oldSpecArray = $this->_setVrPathSpecs(); //set VR view script path specs
$vr->render();
$vr->setNoRender(true); //disable renderer
} catch(Zend_View_Exception $e) { //fallback to default viewscripts if view script file not found
$vr->setView($backupView); //restore view on error
} catch(Exception $e) {
$vr->setView($backupView); //restore view on error
$this->_setVrPathSpecs($oldSpecArray); //restore script path spec
throw $e;
}
$this->_setVrPathSpecs($oldSpecArray);//restore script path spec
}
/**
* Same functionality as ViewRenderer helper _shouldRender method
* @return boolean
*/
protected function _shouldRender();
/**
* @return Zend_Controller_Action_Helper_ViewRenderer
*/
protected function _getViewRenderer();
/**
* Sets viewRenderer path specifications
*
* @param array $spec if NULL uses $this->_viewRendererPathSpecs
* @return array old path spec (0 => pathSpec, 1 => pathNoControllerSpec)
*/
protected function _setVrPathSpecs(array $spec = NULL);
}
应该如何配置完全帮助程序并不重要，而且该部分已跳过
以下是它应该如何工作的示例：
$这 - ＆GT; _setBasePaths（）;将视图基本路径设置为 application / views / default / 和 application / views / admin /
$这 - ＆GT; _setVrPathSpecs（）;将路径规范设置为“：module /：controller /：action。：suffix ”
所以对于foo-baz-bar，它将搜索到
1. application / views / admin / scripts / foo / baz / bar.phtml
2. application / views / default / scripts / foo / baz / bar.phtml
如果未找到视图脚本，则回退到默认的ViewRenderer：
3. application / modules / foo / views / scripts / baz / bar.phtml
如果我错过了什么，请提问
<小时/> 更新：经过一些研究后，我决定使用动作帮助器根据变形器和指定变量的规范自动调整视图scriptPaths。我还修改了部分帮助程序，以便在请求其他模块的部分时注册scriptPaths。
这是行动助手的粗略但有效的版本：
class Xrks_Controller_Action_Helper_ViewRendererPathstack extends Zend_Controller_Action_Helper_Abstract
{
const PATH_APPEND = 'append';
const PATH_PREPEND = 'prepend';
protected $_enabled = FALSE;
protected $_viewScriptPaths = array();
/**
* By default following vars available: baseDir, area, theme, module
* @var string
*/
protected $_viewScriptPathSpec = ':baseDir/:area/:module';
protected $_defaults = array(
'area' => 'frontend',
'theme' => 'default',
);
protected $_vars = array();
protected $_inflector;
protected $_viewRenderer;
public function __construct($baseDir = NULL)
{
if($baseDir == NULL) {
$baseDir = APPLICATION_PATH . DS . 'views';
}
$this->setDefaultVar('baseDir', $baseDir);
$this->addPath(array());
}
/**
* Enter description here ...
* @return Zend_Controller_Action_Helper_ViewRenderer
*/
protected function _getViewRenderer()
{
if(!$this->_viewRenderer) {
$this->_viewRenderer = Zend_Controller_Action_HelperBroker::getStaticHelper('viewRenderer');
}
return $this->_viewRenderer;
}
/**
* Should the ViewRenderer render a view script?
*
* @return boolean
*/
protected function _shouldRender()
{
$vR = $this->_getViewRenderer();
return (!$this->getFrontController()->getParam('noViewRenderer')
&& !$vR->getNeverRender()
&& !$vR->getNoRender()
&& (null !== $vR->getActionController())
&& $vR->getRequest()->isDispatched()
&& !$vR->getResponse()->isRedirect()
);
}
public function generatePaths(array $vars = array())
{
$this->_registerVarsWithInflector();
$vars = array_merge($this->_defaults, $this->_vars, $vars);
$inflector = $this->getInflector();
$generatedPaths = array();
foreach($this->_viewScriptPaths as $path) {
$pathVars = array_merge($vars, $path);
$generatedPaths[] = $inflector->filter($pathVars);
}
return array_reverse(array_unique(array_reverse($generatedPaths)));//last occurence more important than first
// array('test', 'test2', 'test') => array('test2', 'test')
// @todo rethink this code piece later. must be better solution
}
protected function _registerVarsWithInflector()
{
$vars = array_merge($this->_defaults, $this->_vars);
$inflector = $this->getInflector();
$unregistered = array_keys(array_diff_key($vars, $inflector->getRules()));
sort($unregistered, SORT_DESC);//more specific first (moduleDir prior to module key)
foreach($unregistered as $var) {
$inflector->addFilterRule($var, array('Word_CamelCaseToDash', 'StringToLower'));
}
}
protected function _viewAddScriptPaths(Zend_View_Abstract $view, $paths)
{
foreach ($paths as $path) {
$view->addScriptPath($path);
}
}
/**
* Get inflector
*
* @return Zend_Filter_Inflector
*/
public function getInflector()
{
if (null === $this->_inflector) {
$this->_inflector = new Zend_Filter_Inflector();
$this->_inflector->setThrowTargetExceptionsOn(true);
//setup default rules
$this->_inflector->addRules(array(
':baseDir' => array(),
))
->setTargetReference($this->_viewScriptPathSpec);
}
return $this->_inflector;
}
/**
*
* @return array
*/
public function getPaths()
{
return $this->_basePaths;
}
public function getEnabled()
{
return $this->_enabled;
}
public function setEnabled($flag = TRUE)
{
$this->_enabled = (bool)$flag;
return $this;
}
/**
*
* @todo add check for $pathVars keys and values validity
* @param array $pathVars associative array
* @param string $placement either append or prepend
* @return Xrks_Controller_Action_Helper_ViewRendererPathstack
*/
public function addPath(array $pathVars, $placement = self::PATH_APPEND)
{
if($placement == self::PATH_PREPEND) {
array_unshift($this->_viewScriptPaths, $pathVars);
} else {
$this->_viewScriptPaths[] = $pathVars;
}
return $this;
}
/**
*
* @param array|Zend_Config $paths
* @param string $placement either append or prepend
* @return Xrks_Controller_Action_Helper_ViewRendererPathstack
* @throws Xrks_Exception
*/
public function addPaths($paths, $placement = self::PATH_APPEND)
{
if($paths instanceof Zend_Config) {
$paths = $paths->toArray();
} elseif (!is_array($paths)) {
throw new Xrks_Exception('$paths should be either array or instance of Zend_Config');
}
if($placement == self::PATH_PREPEND) {
$paths = array_reverse($paths);
}
foreach($paths as $path) {
$this->addPath((array)$path, $placement);
}
return $this;
}
/**
*
* @param array $pathVars associative array
* @return Xrks_Controller_Action_Helper_ViewRendererPathstack
*/
public function setPath(array $pathVars)
{
$this->_basePaths = array();
$this->addPath($pathVars);
return $this;
}
/**
*
* @param array|Zend_Config $paths
* @return Xrks_Controller_Action_Helper_ViewRendererPathstack
* @throws Xrks_Exception
*/
public function setPaths($paths)
{
$this->_basePaths = array();
$this->addPaths($paths);
return $this;
}
/**
*
* @param string $varName
* @return string |NULL
*/
public function getDefaultVar($varName)
{
if(key_exists($varName, $this->_defaults)) {
return $this->_defaults[$varName];
}
return NULL;
}
/**
* @param string $varName
* @param string $value
* @return Xrks_Controller_Action_Helper_ViewRendererPathstack Provides fluent interface
*/
public function setDefaultVar($varName, $value)
{
$this->_defaults[$varName] = (string)$value;
return $this;
}
/**
*
* @param string $name
* @return string |NULL
*/
public function getVar($name, $defaults = false)
{
if(key_exists($name, $this->_vars)) {
return $this->_vars[$name];
}
return $defaults ? $this->getDefaultVar($name) : NULL;
}
/**
* @param string $varName
* @param string $value
* @return Xrks_Controller_Action_Helper_ViewRendererPathstack Provides fluent interface
*/
public function setVar($varName, $value)
{
$this->_vars[$varName] = $value;
return $this;
}
public function unsetVar($name)
{
if(key_exists($name, $this->_vars)) {
unset($this->_vars[$name]);
}
return $this;
}
public function postDispatch()
{
if(!$this->getEnabled() || !$this->_shouldRender()) {
return; //just skip
}
try {
$vr = $this->_getViewRenderer();
$this->setVar('module', $vr->getModule());
$paths = $this->generatePaths();
$this->_viewAddScriptPaths($vr->view, $paths);
if(Zend_Registry::isRegistered('Zend_Log')) {
Zend_Registry::get('Zend_Log')
->log($paths, Zend_Log::DEBUG);
}
} catch(Exception $e) {
if(Zend_Registry::isRegistered('Zend_Log')) {
Zend_Registry::get('Zend_Log')
->log($e, Zend_Log::WARN);
}
throw $e;
}
}
}
答案 0 :(得分：1)
我通常采用的方式：
对我而言，这是迄今为止最简单的方法。
GJ