使用zend framework框架搭建网站(三) --smarty扩展

使用zend framework框架搭建网站(三) --smarty扩展

2008/07/24 11:02 P.M.

今天总结一下ZF框架中扩展Smarty模板的方法，在ZF帮助文档中已经有比较详细的介绍，在这我稍微多说一些。               一。将smarty的核心文件包放在lib文件夹下，文件包中要包括（internals/,plugins/,Config_File.class.php,Smarty.class.php,Smarty_Compiler.class.php,debug.tpl）.      二. 在Zend/View下添加文件：Smarty.php ，文件的内容如下： <?php /** * Zend_View_Interface */ require_once 'Zend/View/Interface.php'; /** * Smarty   */ require_once("smarty/Smarty.class.php"); /** * 创建Smarty视图 */ class Zend_View_Smarty implements Zend_View_Interface {     /**      * Smarty object      * @var Smarty      */     protected $_smarty;     /**      * Constructor      *      * @param string $tmplPath      * @param array $extraParams      * @return void      */     public function __construct($tmplPath = null, $extraParams = array())     {         $this->_smarty = new Smarty;         if (null !== $tmplPath) {             $this->setScriptPath($tmplPath);         }         foreach ($extraParams as $key => $value) {             $this->_smarty->$key = $value;         }     }     /**      * Return the template engine object           *      * @return Smarty      */     public function getEngine()     {         return $this->_smarty;     }     /**      * Set the path to the templates      *      * @param string $path The directory to set as the path.      * @return void      */     public function setScriptPath($path)     {         if (is_readable($path)) {             $this->_smarty->template_dir = $path;             return;         }         throw new Exception('Invalid path provided');     }     /**     * set smarty缓存     * @author lengfeng     */     public function setCompilePath($path){         if (is_readable($path)) {             $this->_smarty->compile_dir = $path;             return;         }         throw new Exception('Invalid path provided');              }     /**     * set smarty 编译后文档     * @author lengfeng     */     public function setCachePath($path){         if (is_readable($path)) {             $this->_smarty->cache_dir = $path;             return;         }         throw new Exception('Invalid path provided');              }     /**      * Retrieve the current template directory      *      * @return string      */     public function getScriptPaths()     {         return array($this->_smarty->template_dir);     }     /**      * Alias for setScriptPath      *      * @param string $path      * @param string $prefix Unused      * @return void      */     public function setBasePath($path, $prefix = 'Zend_View')     {         return $this->setScriptPath($path);     }     /**      * Alias for setScriptPath      *      * @param string $path      * @param string $prefix Unused      * @return void      */     public function addBasePath($path, $prefix = 'Zend_View')     {         return $this->setScriptPath($path);     }     /**      * Assign a variable to the template      *      * @param string $key The variable name.      * @param mixed $val The variable value.      * @return void      */     public function __set($key, $val)     {         $this->_smarty->assign($key, $val);     }     /**      * Retrieve an assigned variable      *      * @param string $key The variable name.      * @return mixed The variable value.      */     public function __get($key)     {         return $this->_smarty->get_template_vars($key);     }     /**      * Allows testing with empty() and isset() to work      *      * @param string $key      * @return boolean      */     public function __isset($key)     {          return (null !== $this->_smarty->get_template_vars($key));     }     /**      * Allows unset() on object properties to work      *      * @param string $key      * @return void      */     public function __unset($key)     {         $this->_smarty->clear_assign($key);     }     /**      * Assign variables to the template      *      * Allows setting a specific key to the specified value, OR passing an array      * of key => value pairs to set en masse.      *      * @see __set()      * @param string|array $spec The assignment strategy to use (key or array of key      * => value pairs)      * @param mixed $value (Optional) If assigning a named variable, use this      * as the value.      * @return void      */     public function assign($spec, $value = null)     {         if (is_array($spec)) {             $this->_smarty->assign($spec);             return;         }         $this->_smarty->assign($spec, $value);     }     /**      * Clear all assigned variables      *      * Clears all variables assigned to Zend_View either via {@link assign()} or      * property overloading ({@link __get()}/{@link __set()}).      *      * @return void      */     public function clearVars()     {         $this->_smarty->clear_all_assign();     }     /**      * Processes a template and returns the output.      *      * @param string $name The template to process.      * @return string The output.      */     public function render($name)     {         return $this->_smarty->fetch($name);     }     /**      * 设置是否生成缓存      * 如果没有参数,默认为true      */     public function setCache($bool){          if (isset($bool)) {             $this->_smarty->caching = $bool;             return;         }     } } 三.在app文件夹下创建cache ，compile 文件夹 四，在config.ini 配置文件中加入 dir.compile        = ../app/compile dir.cache        = ../app/cache 三，四两步可以参见hi.baidu.com/billdkj/blog/item/bec0b4fc8db6c0fbfd037f34.html《使用zendfreamwork框架搭建网站(二)》 五, 在application.php 文件中添加     /**     * 初始化smarty视图     *     */     private function _initSmartyView()     {         $view = new Zend_View_Smarty();         $view->setBasePath($this->_pathConfig->dir->viewBase);         $view->setScriptPath($this->_pathConfig->dir->viewBase."/scripts");         $view->setCompilePath($this->_pathConfig->dir->compile);         $view->setCachePath($this->_pathConfig->dir->cache);         $smarty=$view->getEngine();         $smarty->caching=false;         $smarty->debugging = true;         $smarty->compile_check = true;                 $smarty->left_delimiter = "<{"; //定义标示符         $smarty->right_delimiter = "}>";         $registry = Zend_Registry::getInstance();         $registry->set('smartyview',$smarty);            //smarty对象         $registry->set('sview',$view);                         } 并在 函数 init()中加入 $this->_initSmartyView(); 六: 在Controller中调用 因为已经将对象注册，所以可以如下调用： $view = Zend_Registry::getInstance()->get("smartyview"); //注意这是smarty对象，使用smarty的那些语法，比如 $view->assign("user","root"); $view = Zend_Registry::getInstance()->get("sview "); //这是zf的view对象，按zf中的那些方法用，不用改变。按这样，你如果要将以前写的代码改为用smaty， 后台不用变了，只需要将视图文件改变就行了