/**
* Finds all datasets of current branch and return in tree order
*
* @param Tx_WoehrlSeminare_Domain_Model_Category $startCategory
* @ignorevalidation $startCategory
* @return array The found Category Objects
*/
public function findCategoryRootline($startCategory = NULL)
{
$query = $this->createQuery();
$constraints = array();
if ($startCategory !== NULL) {
$constraints[] = $query->equals('parents', $startCategory->getUid());
} else {
$constraints[] = $query->equals('parent', 0);
}
if (count($constraints)) {
$query->matching($query->logicalAnd($constraints));
}
$categories = $query->execute();
$flatCategories = array();
foreach ($categories as $category) {
$flatCategories[$category->getUid()] = array('item' => $category, 'parent' => $category->getParent()->current() ? $category->getParent()->current()->getUid() : NULL);
}
$tree = array();
// if only one categorie exists the foreach-solution below
// doesn't work as expected --> take the one and give it back as tree-array()
if (count($flatCategories) == 1) {
$tree[0] = array_shift($flatCategories);
return $tree;
}
foreach ($flatCategories as $id => &$node) {
if ($node['parent'] === NULL) {
$tree[$id] =& $node;
} else {
$flatCategories[$node['parent']]['children'][$id] =& $node;
}
}
return $tree;
}
