Pragmatism in the real world

Zend_View: Access the view from a view helper

It’s in the manual, but I thought I’d blog about my simple View Helper setup that ensures that I can get at the view with minimal effort.

Firstly we create a parent class:

< ?php abstract class My_View_Helper_Abstract { protected $_view; public function setView($view) { $this->_view = $view;

This class contains the code required by Zend_View to collect an instance of the view and assign it to a protected variable. All my view helpers extend this class and so I can acess the view using $this->_view. For instance:

< ?php require_once 'My/View/Helper/Abstract.php'; class My_View_Helper_TreeUl extends My_View_Helper_Abstract { /** * Render a nested array as a set of nested

    * @param array|instanceof Iterator $list
    * @return string
    function treeUl($list)
    $output = '';
    if (is_array($list) || $list instanceof Iterator) {
    if (count($list) > 0) {
    $output = "

    foreach ($list as $item) {
    $output .= "\t
  • ";
    if(is_string($item)) {
    $output .= $this->_view->escape($item);
    } else {
    $output .= $this->treeUl($item);
    $output .= "
  • \n";
    $output .= "

return $output;

Simple, isn’t it ?!

4 thoughts on “Zend_View: Access the view from a view helper

  1. When would you want to use this technique? I mean, what does it do? I realize this is painfully noob of me (realize that I am new to programming… sorry) but I don't see what this buys me.

  2. Mary,

    Generally, you use this when you need to access other view helpers. In the example, I needed access to the escape() view helper from within another one.

    The easiest way is to wrap up the boring bit into a parent class and then it's available whenever you need it without any extra work.

    Does that make sense?



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