Zend Framework의 뷰 구성 요소 Zend_View
- 不言원래의
- 2018-05-04 16:17:421217검색
이 글은 Zend Framework 튜토리얼에서 뷰 컴포넌트 Zend_View의 사용법을 주로 소개하고 있으며, 뷰 컴포넌트 Zend_View의 원리를 좀 더 자세히 분석하고, Zend_View의 사용법을 예시 형태로 분석해 도움이 필요한 친구들이 참고할 수 있도록 해드립니다.
이 문서에서는 Zend_View 뷰 구성 요소 사용에 대한 예제 튜토리얼과 함께 Zend Framework를 설명합니다. 참고할 수 있도록 모든 사람과 공유하세요. 세부 사항은 다음과 같습니다.
Zend_View는 MVC의 뷰 레이어인 Zend Framework의 뷰 구성 요소입니다. Zend_View는 사용자에게 직접 표시되는 애플리케이션 페이지이기도 합니다. 여기에서는 Zend_View의 구현 클래스와 이를 Controller와 결합하는 방법을 소개합니다.
View 구현
Zend_View는 주로 다음 디렉터리의 클래스를 통해 구현됩니다.
root@coder-671T-M:/library/Zend# tree | grep View.php
│ └── View/
├─ ─ View.php
root@coder-671T-M:/library/Zend/View# tree
.
├── Abstract.php
├── Exception.php
├── Helper
│ ├── Abstract. php
│ ├── Action.php
│ ├── BaseUrl.php
│ ├── 통화.php
│ ├── Cycle.php
│ ├── DeclareVars.php
│ ├── Doctype. Formbutton.php
│ ├ ├ ├ ├ 담사 FormeCheckbox.php
│ ├ ├얼은 formeLement.php
│ ├ ├ ├ ├ ├ 담장. php
│ ├ ├얼에서 formerrors.php
│ 착용
│ │ │ │ │ │ │ │ │ │ │ │ │ │ │ │ ── FormHidden.php
│ ├── FormImage.php
│ ├── FormLabel.php
│ ├── FormMultiCheckbox.php
│ ├── FormNote.php
│ ├── FormPassword.php
│ ├ - 양식 .php
│ ─ FormText.php
│ ├── Gravatar.php
│ ├── HeadLink.php
│ ├── HeadMeta.php
│ ├── HeadScript.php
│ ├── HeadStyle.php
│ ├── HeadTitle.php
│ ├── HtmlElement.php
│ ├── HtmlFlash.php
│ ├── HtmlList.php
│ ├── HtmlObject.php
│ ├── HtmlPage.php
│ ├ ─ 신자는 htmlquicktime.php
│ ├ ├ 효율입니다. inlinecript.php
│ ├ ├ ├ 담사. interface.php
│ ├ 착수는 json.php
│.php
│ ├ ├ 담사 .php
│ ├ ├ 담사 │ │ │ ├ ├ ├인지 으oms. php
│ │ ├ ── HelperAbstract.php
│ │ ├── Helper.php
│ │ ├── Links.php
│ │ ├── Menu.php
│ │ └── Sitemap.php
│ ├ ─ ─ Navigation.php
│ ├── PaginationControl.php
│ ├── 부분
│ │ └── Exception.php
│ ├── PartialLoop.php
│ ├── Partial.php
│ ├── 자리 표시자 │ │ ├── 컨테이너 │
│ │ ├── Registry
│ │ .php
│ ├── Translate.php
│ ├── Url.php
│ └── UserAgent.php
├── Interface.php
└── Stream.php
6개 디렉토리, 70개 파일
Zend_View 및 Zend_Controller 통합
은 주로 Zend_Controller_Action 클래스,
/**
* Initialize View object
*
* Initializes {@link $view} if not otherwise a Zend_View_Interface.
*
* If {@link $view} is not otherwise set, instantiates a new Zend_View
* object, using the 'views' subdirectory at the same level as the
* controller directory for the current module as the base directory.
* It uses this to set the following:
* - script path = views/scripts/
* - helper path = views/helpers/
* - filter path = views/filters/
*
* @return Zend_View_Interface
* @throws Zend_Controller_Exception if base view directory does not exist
*/
public function initView()
{
if (!$this->getInvokeArg('noViewRenderer') && $this->_helper->hasHelper('viewRenderer')) {
return $this->view;
}
require_once 'Zend/View/Interface.php';
if (isset($this->view) && ($this->view instanceof Zend_View_Interface)) {
return $this->view;
}
$request = $this->getRequest();
$module = $request->getModuleName();
$dirs = $this->getFrontController()->getControllerDirectory();
if (empty($module) || !isset($dirs[$module])) {
$module = $this->getFrontController()->getDispatcher()->getDefaultModule();
}
$baseDir = dirname($dirs[$module]) . DIRECTORY_SEPARATOR . 'views';
if (!file_exists($baseDir) || !is_dir($baseDir)) {
require_once 'Zend/Controller/Exception.php';
throw new Zend_Controller_Exception('Missing base view directory ("' . $baseDir . '")');
}
require_once 'Zend/View.php';
$this->view = new Zend_View(array('basePath' => $baseDir));
return $this->view;
}
/**
* Render a view
*
* Renders a view. By default, views are found in the view script path as
* <controller>/<action>.phtml. You may change the script suffix by
* resetting {@link $viewSuffix}. You may omit the controller directory
* prefix by specifying boolean true for $noController.
*
* By default, the rendered contents are appended to the response. You may
* specify the named body content segment to set by specifying a $name.
*
* @see Zend_Controller_Response_Abstract::appendBody()
* @param string|null $action Defaults to action registered in request object
* @param string|null $name Response object named path segment to use; defaults to null
* @param bool $noController Defaults to false; i.e. use controller name as subdir in which to search for view script
* @return void
*/
public function render($action = null, $name = null, $noController = false)
{
if (!$this->getInvokeArg('noViewRenderer') && $this->_helper->hasHelper('viewRenderer')) {
return $this->_helper->viewRenderer->render($action, $name, $noController);
}
$view = $this->initView();
$script = $this->getViewScript($action, $noController);
$this->getResponse()->appendBody(
$view->render($script),
$name
);
}
/**
* Render a given view script
*
* Similar to {@link render()}, this method renders a view script. Unlike render(),
* however, it does not autodetermine the view script via {@link getViewScript()},
* but instead renders the script passed to it. Use this if you know the
* exact view script name and path you wish to use, or if using paths that do not
* conform to the spec defined with getViewScript().
*
* By default, the rendered contents are appended to the response. You may
* specify the named body content segment to set by specifying a $name.
*
* @param string $script
* @param string $name
* @return void
*/
public function renderScript($script, $name = null)
{
if (!$this->getInvokeArg('noViewRenderer') && $this->_helper->hasHelper('viewRenderer')) {
return $this->_helper->viewRenderer->renderScript($script, $name);
}
$view = $this->initView();
$this->getResponse()->appendBody(
$view->render($script),
$name
);
}Zend_View.php 클래스에 있습니다.
<?php
/**
* Zend Framework
*
* LICENSE
*
* This source file is subject to the new BSD license that is bundled
* with this package in the file LICENSE.txt.
* It is also available through the world-wide-web at this URL:
* http://framework.zend.com/license/new-bsd
* If you did not receive a copy of the license and are unable to
* obtain it through the world-wide-web, please send an email
* to license@zend.com so we can send you a copy immediately.
*
* @category Zend
* @package Zend_View
* @copyright Copyright (c) 2005-2011 Zend Technologies USA Inc. (http://www.zend.com)
* @license http://framework.zend.com/license/new-bsd New BSD License
* @version $Id: View.php 23775 2011-03-01 17:25:24Z ralph $
*/
/**
* Abstract master class for extension.
*/
require_once 'Zend/View/Abstract.php';
/**
* Concrete class for handling view scripts.
*
* @category Zend
* @package Zend_View
* @copyright Copyright (c) 2005-2011 Zend Technologies USA Inc. (http://www.zend.com)
* @license http://framework.zend.com/license/new-bsd New BSD License
*/
class Zend_View extends Zend_View_Abstract
{
/**
* Whether or not to use streams to mimic short tags
* @var bool
*/
private $_useViewStream = false;
/**
* Whether or not to use stream wrapper if short_open_tag is false
* @var bool
*/
private $_useStreamWrapper = false;
/**
* Constructor
*
* Register Zend_View_Stream stream wrapper if short tags are disabled.
*
* @param array $config
* @return void
*/
public function __construct($config = array())
{
$this->_useViewStream = (bool) ini_get('short_open_tag') ? false : true;
if ($this->_useViewStream) {
if (!in_array('zend.view', stream_get_wrappers())) {
require_once 'Zend/View/Stream.php';
stream_wrapper_register('zend.view', 'Zend_View_Stream');
}
}
if (array_key_exists('useStreamWrapper', $config)) {
$this->setUseStreamWrapper($config['useStreamWrapper']);
}
parent::__construct($config);
}
/**
* Set flag indicating if stream wrapper should be used if short_open_tag is off
*
* @param bool $flag
* @return Zend_View
*/
public function setUseStreamWrapper($flag)
{
$this->_useStreamWrapper = (bool) $flag;
return $this;
}
/**
* Should the stream wrapper be used if short_open_tag is off?
*
* @return bool
*/
public function useStreamWrapper()
{
return $this->_useStreamWrapper;
}
/**
* Includes the view script in a scope with only public $this variables.
*
* @param string The view script to execute.
*/
protected function _run()
{
if ($this->_useViewStream && $this->useStreamWrapper()) {
include 'zend.view://' . func_get_arg(0);
} else {
include func_get_arg(0);
}
}
}
기본적으로 Zend_View는 Render 메소드를 통해 Controller를 통해 자동으로 인스턴스화되고 해당 뷰 파일 중간에 다시 생성됩니다. 물론 Zend_View를 직접 인스턴스화한 다음 사용할 수도 있습니다.
action默认指向的文件是和action的名称相同，如果要指定视图文件，可以通过$this->render的相关方法指定.也可以通过addScriptPath和setScriptPath设置视图文件的目录。
例如
$view = new Zend_View(); $view->addScriptPath('/www/app/myviews'); $view->addScriptPath('/www/app/viewscomm'); // 如果调用 $view->render('example.php'), Zend_View 将 // 首先查找 "/www/app/myviews/example.php", 找不到再找"/www/app/viewscomm/example.php", 如果还找不到，最后查找当前目录下/的"example.php".
Zend_View的常用方法
public function __construct($config = array())
构造函数参数
例如
array( 'escape' => array(), 'encoding' => array(), );
常见key：
escape、encoding、basePath、basePathPrefix、scriptPath、helperPath、 helperPathPrefix、filterPath、filterPathPrefix、filter
public function getEngine() Return the template engine object
public function init()初始化函数
/** * Given a base path, sets the script, helper, and filter paths relative to it * * Assumes a directory structure of: * <code> * basePath/ * scripts/ * helpers/ * filters/ * </code> * * @param string $path * @param string $prefix Prefix to use for helper and filter paths * @return Zend_View_Abstract */ public function setBasePath($path, $classPrefix = 'Zend_View') /** * Given a base path, add script, helper, and filter paths relative to it * * Assumes a directory structure of: * <code> * basePath/ * scripts/ * helpers/ * filters/ * </code> * * @param string $path * @param string $prefix Prefix to use for helper and filter paths * @return Zend_View_Abstract */ public function addBasePath($path, $classPrefix = 'Zend_View') public function addScriptPath($path)Adds to the stack of view script paths in LIFO order. public function setScriptPath($path) Resets the stack of view script paths. public function getScriptPath($name)Return full path to a view script specified by $name public function getScriptPaths()Returns an array of all currently set script paths public function addHelperPath($path, $classPrefix = 'Zend_View_Helper_')Adds to the stack of helper paths in LIFO order. public function setHelperPath($path, $classPrefix = 'Zend_View_Helper_')Resets the stack of helper paths. public function getHelperPath($name) Get full path to a helper class file specified by $name public function getHelperPaths()Returns an array of all currently set helper paths public function getHelper($name) Get a helper by name public function getHelpers()Get array of all active helpers public function getAllPaths() Return associative array of path types => paths public function setEscape($spec) /** * Assigns variables to the view script via differing strategies. * * Zend_View::assign('name', $value) assigns a variable called 'name' * with the corresponding $value. * * Zend_View::assign($array) assigns the array keys as variable * names (with the corresponding array values). * * @see __set() * @param string|array The assignment strategy to use. * @param mixed (Optional) If assigning a named variable, use this * as the value. * @return Zend_View_Abstract Fluent interface * @throws Zend_View_Exception if $spec is neither a string nor an array, * or if an attempt to set a private or protected member is detected */ public function assign($spec, $value = null)
在controller的action可以通过assign传递参数到视图脚本。
例如
$this->view->assign('roles', $roles); $this->view->assign('num', $num); $this->view->assign('a', $a);
或者也可以用
$this->view->roles=$roles; $this->view->a=$a; public function render($name) Processes a view script and returns the output. public function escape($var):Escapes a value for output in a view script. public function setEncoding($encoding) Set encoding to use with htmlentities() and htmlspecialchars() public function getEncoding() :Return current escape encoding
视图脚本文件中的常见用法：
获取传递过来的值
$this->roles
使用一些常见的助手方法：
$this->baseUrl(); $this->url(); $this->paginationControl(); $this->partial()
视图常见用法举例
在bootstrap初始化view或者controller的init文件中
/**
* Initialize the common view helper
*/
protected function _initViewHelper()
{
$boot=$this->bootstrap('View');
$view = $boot->getResource('View');
$view->setHelperPath('Sql/View/Helper', 'Sql_View_Helper');
}
action中
/**
*
* @return void
*/
public function listAction()
{
$this->view->assign('data', $data);
}
视图文件
list.phtml
<?php foreach ($this->data as $item) : ?>
<tr style="height: 19px;">
<td class="datagrid-cell"><?php echo($item->item1);?></td>
</tr>
<?php endforeach; ?>
위 내용은 Zend Framework의 뷰 구성 요소 Zend_View의 상세 내용입니다. 자세한 내용은 PHP 중국어 웹사이트의 기타 관련 기사를 참조하세요!
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