Yaf + Smarty 整合筆記

Yaf真的是太簡單了，簡單到使用mvc的時候在view裏面須要手寫php腳本。所以考慮整合一下smarty模板引擎。爲所欲爲也正是yaf的魅力

Yaf 安裝

這裏簡單說一下yaf的安裝，已是很是無腦了。下載安裝與php版本相對應的yaf.so Yaf擴展下載：https://pecl.php.net/package/yaf
文檔參考：Yaf開發文檔
修改 php.ini
[yaf]
; Yaf Framework
extension="/usr/lib64/php/modules/yaf.so"
; fix Yaf_Loader err
yaf.use_spl_autoload=On

開啓yaf.use_spl_autoload能夠解決下面這個問題
Warning: Yaf_Loader::autoload() [yaf-loader.autoload]: Failed opening script...

不過官方建議仍是關閉這個選項。

Smarty

將Smarty 放入 yaf 的 library 目錄裏。新建一個 Adapter.php 作接入：

<?php
/**
 *
 * @Author: Carl
 * @Since: 2017-11-23 11:45
 * Created by PhpStorm.
 */
Yaf_Loader::import( "Smarty/Smarty.class.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()) {
        $this->_smarty = new Smarty;

        if (null !== $tmplPath) {
            $this->setScriptPath($tmplPath);
        }
        // var_dump($extraParams);
        foreach ($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');
    }
    /**
     * Retrieve the current template directory
     *
     * @return string
     */
    public function getScriptPath()
    {
        return $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);
    }

    /**
     * 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, $value = NULL) {
        return $this->_smarty->fetch($name);
    }

    public function display($name, $value = NULL) {
        echo $this->_smarty->fetch($name);
    }

}

這裏用 Smarty_Adapter 繼承了 Yaf 的 view . 將yaf的view的相關方法轉交給smarty處理

Bootstrap

經過Bootstrap.php 在 yaf 中初始化 smarty

public function _initSmarty(Yaf_Dispatcher $dispatcher){
    $smarty = new Smarty_Adapter(null , Yaf_Application::app()->getConfig()->smarty);
    Yaf_Dispatcher::getInstance()->setView($smarty);
}

smarty 配置

根據本身喜愛配置，注意cache文件夾的寫入權限

smarty.left_delimiter   = "<{"
smarty.right_delimiter  = "}>"
smarty.template_dir     = APP_PATH "/application/views/"
smarty.compile_dir      = APP_PATH "/application/cache/compile"
smarty.cache_dir        = APP_PATH "/application/cache/"

smarty.caching          = 0