PHP學習資料

PHP學習資料

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http://www.zendchina.net

posted @ 2011-01-26 16:13 Jake.Xu 閱讀(10) 評論(0) 編輯Bootstrap

       Bootstrap，顧名思義就是系鞋帶，指出發之前做的準備工作。自從Zend Framework 1.8 以後，Zend Framework 出了Zend_tool 和Zend_Application，因此Bootstrap有了比較大的調整，基本來講，只需要在index.php中調用Zend_Application，就可以直接免去過去設定config檔案，DB，view等。如果需要對這些做特別設定，可以在Bootstrap中擴充Zend_Application_Bootstrap_Bootstrap，用_init*資源函數來設定，BootStrap將依順序逐個調用這些_init*資源函數，然後執行dispatch。需要注意的有幾點：

       1.  在initView的時候盡量不要標註Response屬性，這樣這個Bootstrap不會在layout之前執行個體化Response；

       2.  可以判斷ajax的request頭，用以去除layout, ViewRender,errorHandler和Exception的輸出，這樣就免除在ajax頁面裡面單獨進行設定了。

       3.  ZF1.8之後可以通過設定driver option的方式對ZF的DB charset進行lazy load方式的設定了。


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<?php

class Bootstrap extends Zend_Application_Bootstrap_Bootstrap

{

       protected $_config;

       protected $_cache;

       protected $_requesttype;


       public function run() 

       {

              $frontController = Zend_Controller_Front::getInstance();

              $frontController->dispatch();

       }


       protected function _initAutoload()

       {

              $autoloader = new Zend_Application_Module_Autoloader(array(

                     'namespace' => '',

                     'basePath'  => APPLICATION_PATH,

              ));

              return $autoloader;

       }


       protected function _initConfig()

       {

              // config

              $this->_config = new Zend_Config_Ini(APPLICATION_PATH . '/configs/config.ini', APPLICATION_ENV);

              Zend_Registry::set('config', $this->_config);

              Zend_Registry::set('env', APPLICATION_ENV);


              //Load Application Level configure

              $appconf = new Zend_Config_Ini(APPLICATION_PATH . '/configs/app.conf', APPLICATION_ENV);

              Zend_Registry::set('appconf', $appconf);


              if (1 == (int)$this->_config->debug->showpageinfo){

                     Zend_Registry::set('PageStartTime', microtime(true));

              }

       }


       protected function _initDB()

       {

              if($this->_config->db) {

                     $db = Zend_Db::factory($this->_config->db);


                     if($this->_config->cache->tablemeta && isset($this->_cache)) {       // setup Metacache to speed up

                            Zend_Db_Table::setDefaultMetadataCache($this->_cache);

                     }


                     Zend_Db_Table_Abstract::setDefaultAdapter($db);

                     Zend_Registry::set('db', $db);

              }

 }


       protected function _initView()

       {

              // view and layout setup

              $view = new Zend_View(array('encoding'=>'UTF-8'));

              $view->addHelperPath(APPLICATION_PATH.'/default/views/helpers/');

              //$viewRendered = new Zend_Controller_Action_Helper_ViewRenderer($view);

              //Zend_Controller_Action_HelperBroker::addHelper($viewRendered);


              Zend_Dojo::enableView($view);

              $view->dojo()->setDjConfigOption('parseOnLoad', true)

                     ->requireModule('dijit.form.FilteringSelect')

                     ->requireModule('custom.PairedStore');

              //$view->addBasePath(realpath('./templates/default/'));


              //if ajax submit

              if (isset($_SERVER['HTTP_X_REQUESTED_WITH']) && $_SERVER['HTTP_X_REQUESTED_WITH'] == 'XMLHttpRequest'){

                     $this->_requesttype="ajax";

              }else{

                     $this->_requesttype="html";

                     Zend_Layout::startMvc(array(

                            'layoutPath'=>APPLICATION_PATH . '/layouts',

                            'layout'=>'layout'

                     ));

              }

              $view->doctype('XHTML1_STRICT');

              Zend_Controller_Action_HelperBroker::getStaticHelper('viewRenderer')->setView($view);

       }


       protected function _initFrontController()

       {

              $frontController = Zend_Controller_Front::getInstance();

              $frontController->setControllerDirectory(APPLICATION_PATH .'/controllers');

              $frontController->setParam('env', APPLICATION_ENV);

              if ("ajax" == $this->_requesttype){

                     // Disable the ErrorHandler plugin

                    $frontController->setParam('noErrorHandler', true);

                     // Disable the ViewRenderer helper

                     $frontController->setParam('noViewRenderer', true);

              }

              $frontController->throwExceptions(false);

              $frontController->setBaseUrl('/');

              // action helpers

              Zend_Controller_Action_HelperBroker::addPath(APPLICATION_PATH .'/controllers/helpers');

        }


       protected function _initSession()

       {

              if (isset($this->_config->session)){

                     $session = $this->_config->session;

                     if (empty($session->save_path)){

                            $session->save_path = APPLICATION_PATH. "/../data/sessions/";

                     }

              }

              Zend_Session::setOptions($this->_config->session->toarray());

       }


       protected function _initCache()

       {

              // Setup Core Cache

              if ('true' == $this->_config->cache->caching){

                     $CacheFrontendOptions = array(

                           'lifeTime' => $this->_config->cache->lifetime,  // cache lifetime of half a minute

                           'caching' => $this->_config->cache->caching,

                            'automatic_serialization' => $this->_config->cache->automatic_serialization,  // this is default anyway

                           'automatic_cleaning_factor'=>$this->_config->cache->automatic_cleaning_factor,

                            'logging' => $this->_config->cache->logging,

                     );

                    switch($this->_config->cache->backend){

                            case 'memcached':

                                   $MemcachedBackendOptions = array(

                                         'servers'=>array(array(

                                                 'host' => $this->_config->cache->memcached->host,

                                                 'port' => $this->_config->cache->memcached->port,

                                                 'persistent' => $this->_config->cache->memcached->persistent

                                   )));

                                   $this->_cache = Zend_Cache::factory('Core', 'Memcached', $CacheFrontendOptions, $MemcachedBackendOptions);

                                   break;

                           case 'file':

                            default:

                                   $FileBackendOptions = array(

                                          'cache_dir' => APPLICATION_PATH.'/../data/cache/',

                                         'read_control'=>true,

                                          'read_control_type'=>'md5',

                                          'hashed_directory_level'=>'1'

                                   );

                                  $this->_cache = Zend_Cache::factory('Core', 'File', $CacheFrontendOptions, $FileBackendOptions);

                                   break;

                     }//End of switch

                    Zend_Registry::set('cache', $this->_cache);

             }


             // Setup Page cache

              if($this->_config->cache->page->caching){

                    $pageCacheRegexpsConfig = array(

                            'cache_with_get_variables'=>true,

                            'cache_with_post_variables'=>true,

                            'cache_with_session_variables'=>true,

                            'cache_with_files_variables'=>true,

                            'cache_with_cookie_variables'=>true

                     );

                     $pageCacheFrontendOptions = array(

                            'lifetime' => $this->_config->cache->lifetime,

                            'debug_header' => $this->_config->cache->page->debug, // for debugging

                            'regexps' => array(

                            // cache the whole IndexController

                                   '^(.+)-lc-(.*).html' => array_merge($pageCacheRegexpsConfig,array('tags'=>array('lc'))),

                            )

                     );


                     if (empty($FileBackendOptions)){

                            $FileBackendOptions = array(

                                   'cache_dir' => APPLICATION_PATH.'/../data/cache/',

                                   'read_control'=>true,

                                   'read_control_type'=>'md5',

                                   'hashed_directory_level'=>'1'

                            );

                     }


                     // getting a Zend_Cache_Frontend_Page object

                     $page_cache = Zend_Cache::factory('Page',

                            'File',

                            $pageCacheFrontendOptions,

                           $FileBackendOptions

                    );

                     $page_cache->start();

              }

       }


       protected function _initTranslation()

       {

              // Setup Locale

              Zend_Locale::setDefault('en');   //fallback locale

              $locale = new Zend_Locale('auto'); //auto detection for user locale

              if (isset($this->_cache)){

                     Zend_Locale::setCache($this->_cache); //cache locale to speed up

              }

              Zend_Registry::set('Zend_Locale', $locale); //set up application-wide locale


              // Setup Zend Translate

              // $this->_cache = Zend_Cache::factory('Page','File',$frontendOptions,$backendOptions);

              // Zend_Translate::setCache($this->_cache);

              $translate = new Zend_Translate('gettext','../data/locales/',NULL,array(

                     'scan' =>Zend_Translate::LOCALE_DIRECTORY,

                     'disableNotices' => true

              ));

              Zend_Registry::set('Zend_Translate', $translate);

              // Zend_Validate_Abstract::setDefaultTranslator($translate);

              Zend_Form::setDefaultTranslator($translate);

       }


       protected function _initRoutes(){

              // $router = new Zend_Controller_Router_Rewrite();

              // $router->addConfig($appconf, 'routes');

       }

}

?>