2013年4月6日 13:41:37

參考:

http://www.oschina.net/question/812776_71817

http://yaf.laruence.com/manual/yaf.class.dispatcher.setView.html

這兩者都是在bootstrap.php中寫_initSmarty()函數來重新實現yaf的視圖接口

這中方案默認的是存放模版文件的上級文件夾名字必須是views

根據項目要求,要求可以自定義存放模版文件的文件夾名字,過程及注意事項記錄如下:

1.沒有在bootstrap.php中寫_initSmarty()函數來重新實現yaf的視圖接口,而是在路由結束時的hook代碼中來重寫視圖接口

hook? 1 <?php 2 class LayoutPlugin extends Yaf_Plugin_Abstract { 3 4 public function routerStartup(Yaf_Request_Abstract $request, Yaf_Response_Abstract $response) { 5 echo "Plugin routerStartup called <br/>\n"; 6 } 7 8 public function routerShutdown(Yaf_Request_Abstract $request, Yaf_Response_Abstract $response) { 9 echo "Plugin routerShutdown called <br/>\n"; 10 //整合smarty 11 $dispatcher = Yaf_Dispatcher::getInstance(); 12 // $dispatcher->disableView(); 13 $dispatcher->autoRender(false); 14 $objSmarty = new Smarty_Adapter; 15 $dispatcher->setView($objSmarty); 16 17 } 18 19 public function dispatchLoopStartup(Yaf_Request_Abstract $request, Yaf_Response_Abstract $response) { 20 echo "Plugin DispatchLoopStartup called <br/>\n"; 21 } 22 23 public function preDispatch(Yaf_Request_Abstract $request, Yaf_Response_Abstract $response) { 24 echo "Plugin PreDispatch called <br/>\n"; 25 } 26 27 public function postDispatch(Yaf_Request_Abstract $request, Yaf_Response_Abstract $response) { 28 echo "Plugin postDispatch called <br/>\n"; 29 } 30 31 public function dispatchLoopShutdown(Yaf_Request_Abstract $request, Yaf_Response_Abstract $response) { 32 echo "Plugin DispatchLoopShutdown called <br/>\n"; 33 } 34 }

此時可以確保yaf已經分析URL完畢,確定了moduleName,controllerName,ActionName,

此時重寫yaf視圖接口就可以根據不同的moduleName去設定不同的smarty模版目錄

注意幾點:

①在bootstrap.php中寫_initSmarty()函數來重新實現yaf的視圖接口:

1 //smarty 2 public function _initSmarty(Yaf_Dispatcher $dispatcher) 3 { 4 var_dump('@@@@@@@@@'); 5 }

結果:

1 string '@@@@@@@@@' (length=9) 2 3 Plugin routerStartup called 4 Plugin routerShutdown called 5 Plugin DispatchLoopStartup called 6 Plugin PreDispatch called 7 Plugin postDispatch called 8 Plugin DispatchLoopShutdown called

說明:在分析URL得到 moduleName,controllerName,ActionName 之前已經執行了_initSmarty();如果在這里邊重寫接口,靈活性就不是很大

② 關閉yaf自動默認的display動作(hook代碼的第13行:$dispatcher->autoRender(false);)

否則yaf在執行完action內的代碼后會根據當前的controllerName和actionName去嘗試加載controllerName/actionName.html,如果加載不到就會拋出異常:

e.g. 訪問本地:www.yaftwo.com/test/index/aaa時,打開自動默認的display動作

1 Plugin routerStartup called 2 Plugin routerShutdown called 3 Plugin DispatchLoopStartup called 4 Plugin PreDispatch called 5 -------smarty say hello to you !------- 6 7 object(SmartyException)[24] 8 protected 'message' => string 'Unable to load template file 'F:/zzbserv/apache/htdocs/yaftwo/code/application/modules/test/templates/index\aaa.html'' (length=117) 9 ...

說明:第5行的輸出說明已經成功display,但是緊接著就拋出了異常,內容很明顯是因為找不到默認的disply路徑

2.重寫yaf視圖接口

View Code 1 <?php 2 /* 3 * 自定義視圖類接口,用來封裝smarty共yaf全局使用 4 * 必須實現接口定義的5個函數 5 */ 6 class Smarty_Adapter implements Yaf_View_Interface 7 { 8 public $_smarty; 9 private $_script_path; 10 11 public function __construct() 12 { 13 require 'Smarty.class.php'; 14 $this->_smarty = new Smarty; 15 $this->_smarty->left_delimiter = "<{"; 16 $this->_smarty->right_delimiter = "}>"; 17 $this->_smarty->setCompileDir(ROOT.'/templates_c');//編譯目錄 18 $this->_smarty->setCacheDir(ROOT.'/cache');//緩存目錄 19 //根據不同的模塊設置不同的模版路徑 20 $dispatcher = Yaf_Dispatcher::getInstance(); 21 $arrRequest = $dispatcher->getRequest(); 22 if (empty($arrRequest->module)) { 23 $this->_script_path = APP.'/templates'; 24 $this->setScriptPath(APP.'/templates'); 25 } else { 26 $strModuleName = strtolower($arrRequest->module); 27 $this->_script_path = APP.'/modules/'.$strModuleName.'/templates'; 28 $this->setScriptPath(APP.'/modules/'.$strModuleName.'/templates'); 29 } 30 } 31 32 //返回要顯示的內容 33 public function render( $view_name , $tpl_vars = NULL )//string 34 { 35 $view_path = $this->_script_path.'/'.$view_name; 36 $cache_id = empty($tpl_vars['cache_id']) ? '' : $tpl_vars['cache_id']; 37 $compile_id = empty($tpl_vars['compile_id']) ? '' : $tpl_vars['compile_id']; 38 return $this->_smarty->fetch($view_path, $cache_id, $compile_id, false);//返回應該輸出的內容,而不是顯示 39 } 40 41 //顯示模版 42 public function display( $view_name, $tpl_vars = NULL )//boolean 43 { 44 $view_path = $this->_script_path.'/'.$view_name; 45 $cache_id = empty($tpl_vars['cache_id']) ? '' : $tpl_vars['cache_id']; 46 $compile_id = empty($tpl_vars['compile_id']) ? '' : $tpl_vars['compile_id']; 47 return $this->_smarty->display($view_path, $cache_id, $compile_id); 48 } 49 50 //模版賦值 51 public function assign( $name, $value = NULL )//boolean 52 { 53 return $this->_smarty->assign($name, $value); 54 } 55 56 //設定腳本路徑 57 public function setScriptPath( $view_directory )//boolean 58 { 59 return $this->_smarty->setTemplateDir($view_directory); 60 } 61 62 //得到腳本路徑 63 public function getScriptPath()//string 64 { 65 return $this->_script_path; 66 } 67 68 }

注意幾點:
① setScriptPath()接口函數內不要寫判斷模版路徑是否存在的代碼,因為除了在重寫視圖接口時會執行這行代碼外,yaf還會在"分發請求前"默默的執行這個函數,并且傳遞給它的實參是yaf默認的視圖存放路徑:views/actionName,此時如果你的layout中沒有這個路徑的話,你的程序就會報錯

帖代碼看看這個成員函數什么時候會被執行:

1 //設定腳本路徑 2 public function setScriptPath( $view_directory )//boolean 3 { 4 var_dump('setScriptPath called with param '.$view_directory); 5 return $this->_smarty->setTemplateDir($view_directory); 6 }

?

1 Plugin routerStartup called 2 Plugin routerShutdown called 3 4 string 'setScriptPath called with param F:/zzbserv/apache/htdocs/yaftwo/code/application/modules/test/templates' (length=103) 5 6 Plugin DispatchLoopStartup called 7 Plugin PreDispatch called 8 9 string 'setScriptPath called with param F:/zzbserv/apache/htdocs/yaftwo/code/application/modules/Test/views' (length=99) 10 11 -------smarty say hello to you !------- 12 Plugin postDispatch called 13 Plugin DispatchLoopShutdown called

說明:下邊代碼塊第4行的輸出是因為那里我們重寫了視圖接口,在構造函數中調用了此函數;

但是第9行的輸出則是在執行action時的自動調用輸出,根據傳入的實參可以知道這是yaf自己調用的(現在我還不知道如何去阻止這個調用)

②注意重寫接口的diaplay();函數時,要手動拼接上模版文件的絕對路徑,這里再貼一遍代碼:

1 //顯示模版 2 public function display( $view_name, $tpl_vars = NULL )//boolean 3 { 4 $view_path = $this->_script_path.'/'.$view_name; 5 $cache_id = empty($tpl_vars['cache_id']) ? '' : $tpl_vars['cache_id']; 6 $compile_id = empty($tpl_vars['compile_id']) ? '' : $tpl_vars['compile_id']; 7 return $this->_smarty->display($view_path, $cache_id, $compile_id); 8 }

說明:注意第4行手動拼接上模版文件的絕對路徑(不用管第5,6行代碼),這樣yaf就可以找到自己定義的模版目錄下的模版了,否則:

1 Plugin routerStartup called 2 Plugin routerShutdown called 3 Plugin DispatchLoopStartup called 4 Plugin PreDispatch called 5 6 object(SmartyException)[21] 7 protected 'message' => string 'Unable to load template file 'test.html'' (length=40) 8 ...

最后貼出重寫后的用法:

1 <?php 2 class IndexController extends Yaf_Controller_Abstract 3 { 4 public function aaaAction() 5 { 6 $this->getView()->assign('var', 'smarty say hello to you !'); 7 $this->getView()->display('test.html'); 8 } 9 }

另外:

①我在剛接觸zend framework的時候,也整合過smarty當時用的是它的全局變量注冊功能,我看到yaf的在線手冊里也有此類(Yaf_Registry),有用到的可以試試

②Yaf_Controller_Abstract中有個默認執行的init()函數,也可以打打它的注意(*^__^*)

完.

?

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