/**
* Returns a category constraint created by
* a given list of categories and a junction string
*
* @param Tx_Extbase_Persistence_QueryInterface $query
* @param array $categories
* @param string $conjunction
* @param boolean $includeSubCategories
* @return Tx_Extbase_Persistence_QOM_Constraint|null
*/
protected function createCategoryConstraint(Tx_Extbase_Persistence_QueryInterface $query, $categories, $conjunction, $includeSubCategories = FALSE)
{
$constraint = NULL;
$categoryConstraints = array();
// If "ignore category selection" is used, nothing needs to be done
if (empty($conjunction)) {
return $constraint;
}
if (!is_array($categories)) {
$categories = t3lib_div::intExplode(',', $categories, TRUE);
}
foreach ($categories as $category) {
if ($includeSubCategories) {
$subCategories = t3lib_div::trimExplode(',', Tx_News_Service_CategoryService::getChildrenCategories($category, 0, '', TRUE), TRUE);
$subCategoryConstraint = array();
$subCategoryConstraint[] = $query->contains('categories', $category);
if (count($subCategories) > 0) {
foreach ($subCategories as $subCategory) {
$subCategoryConstraint[] = $query->contains('categories', $subCategory);
}
}
if ($subCategoryConstraint) {
$categoryConstraints[] = $query->logicalOr($subCategoryConstraint);
}
} else {
$categoryConstraints[] = $query->contains('categories', $category);
}
}
if ($categoryConstraints) {
switch (strtolower($conjunction)) {
case 'or':
$constraint = $query->logicalOr($categoryConstraints);
break;
case 'notor':
$constraint = $query->logicalNot($query->logicalOr($categoryConstraints));
break;
case 'notand':
$constraint = $query->logicalNot($query->logicalAnd($categoryConstraints));
break;
case 'and':
default:
$constraint = $query->logicalAnd($categoryConstraints);
}
}
return $constraint;
}
