<?php
/**
* User: delboy1978uk
* Date: 04/12/2016
* Time: 22:33
*/
namespace Del\Form\Renderer\Field;
use Del\Form\Field\FieldInterface;
use Del\Form\Field\Select;
use DOMElement;
use DOMText;
use InvalidArgumentException;
class SelectRender extends AbstractFieldRender implements FieldRendererInterface
{
/**
* @param FieldInterface $field
* @param DOMElement $element
* @return DOMElement
*/
public function renderBlock(FieldInterface $field, DOMElement $element)
{
if (!$field instanceof Select) {
throw new InvalidArgumentException('Must be a Del\Form\Field\Select');
}
foreach ($field->getOptions() as $value => $label) {
$option = $this->processOption($field, $value, $label);
$element->appendChild($option);
}
return $element;
}
/**
* @param FieldInterface $field
* @param string $value
* @param string $label
* @return DOMElement
*/
private function processOption(FieldInterface $field, $value, $label)
{
$option = $this->createElement('option');
$option->setAttribute('value', $value);
$label = $this->createText($label);
$option->appendChild($label);
if ($field->getValue() == $option->getAttribute('value')) {
$option->setAttribute('selected', 'selected');
}
return $option;
}
}
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