/**
* Convert an MDB result to a memory Model.
*
* Every successful database query returns an MDB result
* !!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!
* !!! This method can only be applied to a result with row arrays
* !!! containing a representation of the database table: statements,
* !!! with an index corresponding to following table columns:
* !!! [0] - subject, [1] - predicate, [2] - object, [3] - l_language,
* !!! [4] - l_datatype, [5] - subject_is, [6] - object_is
* !!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!
*
* @param ressource MDB Result
* @return object Model_Memory
* @access private
*/
function _convertRecordSetToMemModel($result)
{
$res =& new RDF_Model_Memory($this->getBaseURI());
while (is_array($row = $this->dbConn->fetchInto($result))) {
// subject
if ($row[5] == 'r') {
$sub =& RDF_Resource::factory($row[0]);
} else {
$sub =& RDF_BlankNode::factory($row[0]);
}
// predicate
$pred =& RDF_Resource::factory($row[1]);
// object
if ($row[6] == 'r') {
$obj =& RDF_Resource::factory($row[2]);
} elseif ($row[6] == 'b') {
$obj =& RDF_BlankNode::factory($row[2]);
} else {
$obj =& RDF_Literal::factory($row[2], $row[3]);
if ($row[4]) {
$obj->setDatatype($row[4]);
}
}
$statement =& RDF_Statement::factory($sub, $pred, $obj);
$res->add($statement);
}
$this->dbConn->freeResult($result);
return $res;
}
/**
* Adds a new statement to the model
* This method is called by generateModel().
*
* @access private
* @param string &$user_data
* @param string $subject_type
* @param string $subject
* @param string $predicate
* @param string $ordinal
* @param string $object_type
* @param string $object
* @param string $xml_lang )
* @return object Model_Memory
*/
function add_statement_to_model(&$user_data, $subject_type, $subject, $predicate, $ordinal, $object_type, $object, $xml_lang, $datatype)
{
// create subject
if ($subject_type == RDF_SUBJECT_TYPE_BNODE) {
$objsub =& RDF_BlankNode::factory($subject);
} else {
$objsub =& RDF_Resource::factory($subject);
}
// create predicate
$objpred =& RDF_Resource::factory($predicate);
// create object
if ($object_type == RDF_OBJECT_TYPE_RESOURCE || $object_type == RDF_OBJECT_TYPE_BNODE) {
if ($object_type == RDF_OBJECT_TYPE_BNODE) {
$objobj =& RDF_BlankNode::factory($object);
} else {
$objobj =& RDF_Resource::factory($object);
}
} else {
$objobj =& RDF_Literal::factory($object);
if ($datatype != '') {
$objobj->setDatatype($datatype);
} elseif ($xml_lang != "") {
$objobj->setLanguage($xml_lang);
}
}
// create statement
$statement =& RDF_Statement::factory($objsub, $objpred, $objobj);
// add statement to model
$this->model->add($statement);
}
