title: Zend_Form, overwriting decorators by default, not working
body: <p>I am having issues with <code>zend_form</code> and <code>zend_decorator</code>.</p>
  
  <p>I have created a decorator class to default all forms to use list elements, however it doesn't seem to be working!</p>
  
  <p>Essentially <code>my_decorator_design</code> extends <code>zend_form</code> and then my forms extend the decorator. </p>
  
  <p>Ideas?</p>
  
  <pre><code>class My_Decorator_Design extends Zend_Form {
  
   public function loadDefaultDecorators() {
    $this-&gt;addDecorator('FormElements')
    -&gt;addDecorator('HtmlTag', array('tag' =&gt; 'ul')) //this adds a &lt;ul&gt; inside the &lt;form&gt;
    -&gt;addDecorator('Form');
  
   $this-&gt;setElementDecorators(array(
    'ViewHelper',
    'Label',
    'Errors',
    new Zend_Form_Decorator_HtmlTag(array('tag' =&gt; 'li')) //wrap elements in &lt;li&gt;'s
   ));
  
   $this-&gt;setDisplayGroupDecorators(array(
    'FormElements',
    'Fieldset',
    new Zend_Form_Decorator_HtmlTag(array('tag' =&gt; 'li')), //wrap groups in &lt;li&gt;'s too
    new Zend_Form_Decorator_HtmlTag(array('tag' =&gt; 'ul'))
   )); 
  
   $this-&gt;setDisplayGroupDecorators(array(
    'FormElements',
    'Fieldset',
    new Zend_Form_Decorator_HtmlTag(array('tag' =&gt; 'li')) //wrap groups in &lt;li&gt;'s too
    ));
   }
  
  }
  
  class Forms_User_Update extends My_Decorator_Design {
    public function __construct($options=array()) {
      parent::__construct($options);//if we ever want to pass on things to zend_form
      $this-&gt;setName('user_update');
      $this-&gt;loadDefaultDecorators();
  
      //user_name, first_name, email, password, date_of_birth
      $user_name          = new Zend_Form_Element_Text('user_name');
      $first_name         = new Zend_Form_Element_Text('first_name');
      $email              = new Zend_Form_Element_Text('email');
      $password           = new Zend_Form_Element_Password('password');   
      $password2          = new Zend_Form_Element_Password('password2');
      $submit             = new Zend_Form_Element_Submit('Submit');
  
      $user_name-&gt;setRequired(true)
                -&gt;setLabel('Username');
      $first_name-&gt;setRequired(false)
                 -&gt;setLabel('First Name');
      $email-&gt;setRequired(true)
            -&gt;setLabel('Email:')
            -&gt;addFilter('StringToLower')
            -&gt;addValidator('NotEmpty', true)
            -&gt;addValidator('EmailAddress');
      $password-&gt;setLabel('Password:')
               -&gt;setRequired(false)
               -&gt;setIgnore(false)
               -&gt;addValidator('stringLength', false, array(6));
      $password2-&gt;setLabel('Confirm Password:')
                -&gt;setRequired(false)
                -&gt;setIgnore(true);
      $submit-&gt;setLabel("Submit")
             -&gt;setIgnore(true);
  
      $this-&gt;addElements(array(
          $user_name, $first_name, $email, $password, $password2, $submit
      ));
      //$this-&gt;Submit-&gt;removeDecorator('Label');
      //$this-&gt;addElementPrefixPath('My_Decorator', 'My/Decorator/', 'decorator');
      $this-&gt;setMethod('post');
      $this-&gt;setAction('/update-account');    
    }
  }
  </code></pre>