private function getTaxonomyFilterExpressions()
{
$expressions = array();
require_once 'Services/Taxonomy/classes/class.ilTaxonomyTree.php';
require_once 'Services/Taxonomy/classes/class.ilTaxNodeAssignment.php';
foreach ($this->getTaxonomyFilters() as $taxId => $taxNodes) {
$questionIds = array();
$forceBypass = true;
foreach ($taxNodes as $taxNode) {
$forceBypass = false;
$taxTree = new ilTaxonomyTree($taxId);
$taxNodeAssignment = new ilTaxNodeAssignment('tst', $this->getTestObjId(), 'quest', $taxId);
$subNodes = $taxTree->getSubTreeIds($taxNode);
$subNodes[] = $taxNode;
$taxItems = $taxNodeAssignment->getAssignmentsOfNode($subNodes);
foreach ($taxItems as $taxItem) {
$questionIds[$taxItem['item_id']] = $taxItem['item_id'];
}
}
if (!$forceBypass) {
$expressions[] = $this->db->in('question_id', $questionIds, false, 'integer');
}
}
return $expressions;
}
/**
* Get all assigned items under a node
*
* @param
* @return
*/
static function getSubTreeItems($a_comp, $a_obj_id, $a_item_type, $a_tax_id, $a_node)
{
include_once "./Services/Taxonomy/classes/class.ilTaxonomyTree.php";
$tree = new ilTaxonomyTree($a_tax_id);
$sub_nodes = $tree->getSubTreeIds($a_node);
$sub_nodes[] = $a_node;
include_once "./Services/Taxonomy/classes/class.ilTaxNodeAssignment.php";
$tn_ass = new ilTaxNodeAssignment($a_comp, $a_obj_id, $a_item_type, $a_tax_id);
$items = $tn_ass->getAssignmentsOfNode($sub_nodes);
return $items;
}
public function getFilteredObjects()
{
include_once "Services/Taxonomy/classes/class.ilTaxonomyTree.php";
include_once "Services/Taxonomy/classes/class.ilTaxNodeAssignment.php";
include_once "Services/Taxonomy/classes/class.ilTaxonomyNode.php";
$tax_obj_ids = $tax_map = array();
// :TODO: this could be smarter
foreach ($this->selection as $node_id) {
$node = new ilTaxonomyNode($node_id);
$tax_map[$node->getTaxonomyId()][] = $node_id;
}
foreach ($tax_map as $tax_id => $node_ids) {
$tax_tree = new ilTaxonomyTree($tax_id);
// combine taxonomy nodes OR
$tax_nodes = array();
foreach ($node_ids as $node_id) {
$tax_nodes = array_merge($tax_nodes, $tax_tree->getSubTreeIds($node_id));
$tax_nodes[] = $node_id;
}
$tax_obj_ids[$tax_id] = ilTaxNodeAssignment::findObjectsByNode($tax_id, $tax_nodes, "obj");
}
// combine taxonomies AND
$obj_ids = null;
foreach ($tax_obj_ids as $tax_objs) {
if ($obj_ids === null) {
$obj_ids = $tax_objs;
} else {
$obj_ids = array_intersect($obj_ids, $tax_objs);
}
}
return (array) $obj_ids;
}
