<?php

/**
 * 所有在Bootstrap类中, 以_init开头的方法, 都会被Yaf调用,
 * 这些方法, 都接受一个参数:Yaf_Dispatcher $dispatcher
 * 调用的次序, 和申明的次序相同
 */
class Bootstrap extends Yaf_Bootstrap_Abstract{
 /**
  * 自定义视图引擎
  */
        public function _initSmarty(Yaf_Dispatcher $dispatcher) {
                $smarty = new Smarty_Adapter(null, Yaf_Registry::get("config")->get("smarty"));
                Yaf_Dispatcher::getInstance()->setView($smarty);
  }
}


/**
 * 视图引擎定义
 * Smarty/Adapter.php
 */
class Smarty_Adapter implements Yaf_View_Interface
{
    /**
     * Smarty object
     * @var Smarty
     */
    public $_smarty;
 
    /**
     * Constructor
     *
     * @param string $tmplPath
     * @param array $extraParams
     * @return void
     */
    public function __construct($tmplPath = null, $extraParams = array()) {

        require "Smarty.class.php";
        $this->_smarty = new Smarty;
 
        if (null !== $tmplPath) {
            $this->setScriptPath($tmplPath);
        }
 
        foreach ($extraParams as $key => $value) {
            $this->_smarty->$key = $value;
        }
    }
 
    /**
     * 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);
    }
 
    /**
     * 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);
    }
}
?>