我如何包裝由Zend_Form的結果一些文字渲染

Question

我需要通過Zend_Form的結果的總結我的文本渲染：

您可以通過代碼都明白（因爲我的英語不好）（該樣本是不工作）：

$HTML = $Form -> render(new Zend_View('asdasd')); 

我應該得到：

<form> 
asdasd 
</form> 

Answer 1

您可以輕鬆地渲染來自控制器的形式，這樣

在控制器

$form = new Zend_Form(); 
//Create your form elements 

$this->view->form = $form 

然後在控制器

echo $this->form 

Zend_Form的對象有一個__toString()方法將通過簡單地使用回波呈現的形式爲您服務。

Answer 2

我認爲你正在嘗試做的事情（如果我正確理解你的話）可以通過編寫自定義窗體視圖助手來實現。出於這個原因，我準備了一個如何完成的草案。不確定，如果這是做這件事的最好方式，但它應該起作用。

首先，讓我們創建我們的自定義表單視圖幫助器。默認的是Zend_View_Helper_Form。 Zend_Form使用Zend_Form_Decorator_Form進行渲染，然後使用Zend_View_Helper_Form實際生成表單的xhtml表示形式。所以我們可以創建自己的表單助手，例如叫My_View_Helper_CustomForm延伸Zend_View_Helper_Form如下：

// Example file location: APPLICATION_PATH/views/helpers/CustomForm.php 
class My_View_Helper_CustomForm extends Zend_View_Helper_Form { 


    /** 
    * Render HTML form 
    * 
    * @param string $name Form name 
    * @param null|array $attribs HTML form attributes 
    * @param false|string $content Form content 
    * @return string 
    */ 
    public function customForm($name, $attribs = null, $content = false) 
    { 

     // THE FOLLOWING FEW LINES ARE NEW. 
     // get myText and unset it from $attribs afterwards.   
     $myText = '';   
     if (array_key_exists('myText', $attribs)) { 
      $myText = $attribs['myText']; 
      unset($attribs['myText']); 
     } 

     // this is from orginal form view helper 
     $info = $this->_getInfo($name, $content, $attribs); 
     extract($info); 

     if (!empty($id)) { 
      $id = ' id="' . $this->view->escape($id) . '"'; 
     } else { 
      $id = ''; 
     } 

     if (array_key_exists('id', $attribs) && empty($attribs['id'])) { 
      unset($attribs['id']); 
     } 

     $xhtml = '<form' 
       . $id 
       . $this->_htmlAttribs($attribs) 
       . '>'; 


     // THE NEXT LINE IS AGAIN NEW   
     // WE PUT $myText after opening <form> tag (as in your example). 
     $xhtml .= $myText . 'sadfsf'; 



     // the rest of the form, as usuall. 
     if (false !== $content) { 
      $xhtml .= $content 
        . '</form>'; 
     } 

     return $xhtml; 
    } 

} 

某處在Bootsrap.php你應該在視圖助手本地化添加到自動加載。也許你也可以通過將視圖助手目錄添加到Zend_View來實現。不過，我只是做使用自動加載它，如下所示：

$autoLoader = Zend_Loader_Autoloader::getInstance(); 

    $resourceLoader = new Zend_Loader_Autoloader_Resource(array(
       'basePath' => APPLICATION_PATH, 
       'namespace' => '', 
      )); 

    $resourceLoader->addResourceType('view', 'views/helpers/', 'My_View_Helper_'); 
    $autoLoader->pushAutoloader($resourceLoader); 

已經這樣做了，我會證明testAction示例代碼將使用上述customForm：

$myForm = new My_Form_SomeForm(); 

    // set your text you want to put in the form 
    // Just don't forget to unset it the new view helper. 
    $myForm->setAttrib('myText', 'asdasd'); 


    // get form decorator (i.e. Zend_Form_Decorator_Form) 
    $formDecorator = $myForm->getDecorator('form'); 

    // $formDecorator uses Form helper to actually cunstruct xhtml of the form. 
    // So we set our new helper (i.e. My_View_Helper_CustomForm) 
    // instead of default one (i.e. Zend_View_Helper_Form). 
    // setHelper() method takes only string, thus ZF will need to know how to find 
    // the new view helper. This was the reason I added it to the autoloader. 
    $formDecorator->setHelper('customForm'); 

    $HTML = $myForm->render(); 

希望這將是有用你會幫助你解決問題。