ViewHelper Workshop für TYPO3 Camp Regensburg #t3cr

1. ViewHelper
http://www.schmutt.de/
wp-content/uploads/as_viewhelper.zip

2. Grundaufbau ExtBase/Fluid
Model: Product
• Title
• Price
Repository
• findAll
• findByProperty
Controller
• List
• Show
Fluid Template
• List
Fluid Template
• Show

3. Grundaufbau ExtBase/Fluid
Model
Controller
Fluid Template
public function getTitle() {
return $this->title;
}
public function listAction() {
$products = $this->productRepository->findAll();
$this->view->assign('products', $products);
}
<f:for each="{products}" as="product">
<tr>
<td>
<f:link.action action="show" arguments="{product :
product}">
{product.title}
</f:link.action>
</td>
</tr>
</f:for>

4. ViewHelper
{namespace as=TYPO3AsViewhelperViewHelpers}
Fluid Template
<f:for each="{products}" as="product">
<tr>
<td>
<f:link.action action="show" arguments="{product : product}">
<as:uppercase value="{product.title}" />
</f:link.action>
</td>
</tr>
</f:for>
ViewHelper
class UppercaseViewHelper
extends TYPO3CMSFluidCoreViewHelperAbstractViewHelper
{
public function render($value) {
return strtoupper($value);
}
}

5. Fluid und ViewHelper
• Alle Fluid Elemente sind ViewHelper
-> zu finden unter
/typo3/sysext/fluid/Classes/ViewHelpers7
• Das ist ganz viel Beispielcode, und Syntax steht
am Anfang im Kommentar

6. Links
• http://www.t3node.com/blog/writing-a-basicfluid-viewhelper-for-typo3/
• http://www.typo3.net/forum/thematik/zeige/
thema/115372/?show=1
• ViewHelper in TYPO3 Forge:
http://forge.typo3.org/projects/packageviewhelperincubator