Use zend-decorator to format Zend_Form_Element_Radio in a table column with oher Zend_Form_Elements in rows

Question

I want use decorators to format as table the following Zend_Form, placing a description in the first column and the Zend_Form_Element_Radio\'s opti

Answer 1

Well here my version of the answer.

Into the init I've add a custom decorator RadioTable to the form, and prefix path to load the decorator

then I decorate all the elements as a normal table, this's important because all my efforts are to keep the facilities offer by standard decorators like "Error"

Please note the Custom_Form_Element_FirstSelect and the ->setSeparator in the radio element

I also add the submit button

public function init()
{
    $_please_select = array("" => " please select ");

    // I add a my custom decorator
    $this->addPrefixPath('Custom_Form_Decorator',
                             'Custom/Form/Decorator',
                             'decorator');

    $this->setMethod(Zend_Form::METHOD_POST);

    $input_lunch = new Zend_Form_Element_Radio('lunch');  
    $input_lunch ->setMultiOptions(self::$KINDS)
                 ->setSeparator("\t__RADIO_SEPARATOR__\t")  //set custom separator I'll use in custom decorator
                 ->setDecorators(array(
                     'ViewHelper',  // add a standard decorator
                     'Label', // I'll use the label decorator to show text
                   ));

    $this->addElement($input_lunch );

    foreach (self::$KINDS as $k => $_description) {
        // to "mark" the first select I extend the Zend_Form_Element_Select
        // with Custom_Form_Element_FirstSelect
        $input_drink = new Custom_Form_Element_FirstSelect('drink_' . $k);
        $input_drink->addMultiOptions(self::$DRINKS)                    
                    ->setDecorators(array(
                                    'ViewHelper', // add a standard decorator
                                    array(array('data' => 'HtmlTag'),array('tag' => 'td')), // add a standard decorator
                                        ));

        $input_food = new Zend_Form_Element_Select('food_' . $k);
        $input_food->addMultiOptions($_please_select)
            ->addMultiOptions(self::$FOODS)
            ->setDecorators(array(
                            'ViewHelper',
                            array(array('data' => 'HtmlTag'),array('tag' => 'td')),
                            ));

        $this->addElement($input_drink);
        $this->addElement($input_food);
    }

    // add a the submit button
    $submit = new Zend_Form_Element_Submit('submit');
        $submit->setLabel('SUBMIT');
        $submit->setDecorators(array(
                                'ViewHelper',
                                'Errors',
                                array(array('data' => 'HtmlTag'), array('tag' => 'td', )),
                                array(array('row' => 'HtmlTag'), array('tag' => 'tr')),
                            ));
        $this->addElement($submit);

    // add the custom decorators to the whole form
    $this->setDecorators(array(
        'RadioTable',
        array('HtmlTag', array('tag' => 'table', )),
        'Form'
    ));
}

the Custom_Form_Element_FirstSelect

class Custom_Form_Element_FirstSelect extends Zend_Form_Element_Select{

}

the Custom_Form_Decorator_RadioTable

class Custom_Form_Decorator_RadioTable extends Zend_Form_Decorator_Abstract {

    public function render($content){

        $wrap = '';
        // I'll take the element
        $radioElement  = $this->getElement()->getElement('lunch');
        // then I render it and explode in array using the separator
        $arrayRadio = explode("\t__RADIO_SEPARATOR__\t", $radioElement->__toString());



        $count = 0;
        $arrayElement  = $this->getElement()->getElements(); 
        // loop on all form elements and I render them
        foreach ($arrayElement as $keyForm => $element){
            // I skip the radio element 
            if($element instanceof Zend_Form_Element_Radio){
                continue;
            }

            if($element instanceof Custom_Form_Element_FirstSelect ){
                // when I found the custom select element I'll prefix with "open-row-tag" and radio button in column
                $wrap .= "". "". $arrayRadio[$count++] . "" .  $element->__toString();
                // note that the select elements are already decorated
            } else if($element instanceof Zend_Form_Element_Select){
                // after the last select I close the row
                $wrap .= $element->__toString() ."";

            }

            if($element instanceof Zend_Form_Element_Submit){
                // add the SUBMIT button
                $wrap .=  $element->__toString() ;

            }
        }

        return $content.$wrap;
    }
}

Of course I can use the name of the element instead of use a custom element class to open the table row, but in this way I'm feel more flexible.