[TYPO3-mvc] Using repository inside an entity

[Jochen Rau]

Hi Henrik.

On 25.04.10 21:48, Henrik Møller Rasmussen wrote:
> My first thought was to create this method in the ItemRepository.. But
> the situation is, that I want to loop through all categories, rendering
> items inside each category. But each category should only be rendered if
> it contains items for sale.
>
> The way I solved it was by creating this getItemsForSale method on the
> categories. Now I could condition on category.itemsForSale, and loop
> through them easily afterward. I couldn't figure out a solution that did
> this using the repository.

Maybe the Tx_Fluid_ViewHelpers_GroupedForViewHelper is your friend here. 
Just fetch all your items and group them in the template. Here is the 
php comment:

/**
  * Grouped loop view helper.
  * Loops through the specified values
  *
  * = Examples =
  *
  * <code title="Simple">
  * <f:groupedFor each="{0: {name: 'apple', color: 'green'}, 1: {name: 
'cherry', color: 'red'}, 2: {name: 'banana', color: 'yellow'}, 3: {name: 
'strawberry', color: 'red'}}" as="fruitsOfThisColor" groupBy="color">
  *   <f:for each="{fruitsOfThisColor}" as="fruit">
  *     {fruit.name}
  *   </f:for>
  * </f:groupedFor>
  * </code>
  *
  * Output:
  * apple cherry strawberry banana
  *
  * <code title="Two dimensional list">
  * <ul>
  *   <f:groupedFor each="{0: {name: 'apple', color: 'green'}, 1: {name: 
'cherry', color: 'red'}, 2: {name: 'banana', color: 'yellow'}, 3: {name: 
'strawberry', color: 'red'}}" as="fruitsOfThisColor" groupBy="color" 
groupKey="color">
  *     <li>
  *       {color} fruits:
  *       <ul>
  *         <f:for each="{fruitsOfThisColor}" as="fruit" key="label">
  *           <li>{label}: {fruit.name}</li>
  *         </f:for>
  *       </ul>
  *     </li>
  *   </f:groupedFor>
  * </ul>
  * </code>
  *
  * Output:
  * <ul>
  *   <li>green fruits
  *     <ul>
  *       <li>0: apple</li>
  *     </ul>
  *   </li>
  *   <li>red fruits
  *     <ul>
  *       <li>1: cherry</li>
  *     </ul>
  *     <ul>
  *       <li>3: strawberry</li>
  *     </ul>
  *   </li>
   *   <li>yellow fruits
  *     <ul>
  *       <li>2: banana</li>
  *     </ul>
  *   </li>
  * </ul>
  *
  * @version $Id$
  * @package Fluid
  * @subpackage ViewHelpers
  * @license http://www.gnu.org/licenses/lgpl.html GNU Lesser General 
Public License, version 3 or later
  * @api
  * @scope prototype
  */
class Tx_Fluid_ViewHelpers_GroupedForViewHelper extends 
Tx_Fluid_Core_ViewHelper_AbstractViewHelper {

Regards
Jochen