PHP学习资料

PHP学习资料
http://hi.baidu.com/renxian/blog

http://www.zendchina.net
posted @ 2011-01-26 16:13 Jake.Xu 阅读(10) 评论(0) 编辑
Bootstrap
Bootstrap，顾名思义就是系鞋带，指出发之前做的准备工作。自从Zend Framework 1.8 以后，Zend Framework 出了Zend_tool 和Zend_Application，因此Bootstrap有了比较大的调整，基本来讲，只需要在index.php中调用Zend_Application，就可以直接免去过去设定config文件，DB，view等。如果需要对这些做特别设置，可以在Bootstrap中扩展Zend_Application_Bootstrap_Bootstrap，用_init*资源函数来设定，BootStrap将依顺序逐个调用这些_init*资源函数，然后执行dispatch。需要注意的有几点：

1. 在initView的时候尽量不要标注Response属性，这样这个Bootstrap不会在layout之前实例化Response；

2. 可以判断ajax的request头，用以去除layout, ViewRender,errorHandler和Exception的输出，这样就免除在ajax页面里面单独进行设定了。

3. ZF1.8之后可以通过设定driver option的方式对ZF的DB charset进行lazy load方式的设定了。

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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');

}

}

?>