TYPO3 Core

* Creates and executes a SELECT query, selecting fields ($select) from four tables joined

* Use $tripleTable together with $subjectTable, $predicateTable or $objectTable to select over two tables. Or use all four tables to select a full MMM-relation.

* The JOIN is done with triple.subject_uid <--> subject.uid / triple.predicate_uid <--> predicate.uid / triple.object_uid <--> object.uid

* The function is very useful for selecting MMM-relations like RDF triples

*

* @param string Field list for SELECT

* @param string Tablename, triple table, renamed to triple

* @param string Tablename, subject table, renamed to subject

* @param string Optional Tablename, predicate table, renamed to predicate

* @param string Optional Tablename, object table, renamed to object

* @param string Optional additional WHERE clauses put in the end of the query. NOTICE: You must escape values in this argument with $this->fullQuoteStr() yourself! DO NOT PUT IN GROUP BY, ORDER BY or LIMIT! You have to prepend 'AND ' to this parameter yourself!

* @param string Optional GROUP BY field(s), if none, supply blank string.

* @param string Optional ORDER BY field(s), if none, supply blank string.

* @param string Optional LIMIT value ([begin,]max), if none, supply blank string.

* @return pointer MySQL result pointer / DBAL object

* @see exec_SELECTquery()

*/

function exec_SELECT_getRowsByTriple($select, $tripleTable, $subjectTable, $predicateTable, $objectTable, $whereClause = '', $groupBy = '', $orderBy = '', $limit = '') {

$tripleWhere = $subjectTable ? 'triple.subject_table=\''.$subjectTable.'\' AND subject.uid=triple.subject_uid' : '';

$tripleWhere .= ($subjectTable && ($predicateTable || $objectTable)) ? ' AND ' : '';

$tables = $tripleTable ? $tripleTable . ' AS triple,' : '';

$tables .= ',' . $subjectTable . ' AS subject';

if ($predicateTable) {

$tripleWhere .= 'triple.predicate_table=\''.$predicateTable.'\' AND predicate.uid=triple.predicate_uid';

$tripleWhere .= $objectTable ? ' AND ' : '';

$tables .= ',' . $predicateTable . ' AS predicate';

}

if ($objectTable) {

$tripleWhere .= 'triple.object_table=\''.$objectTable.'\' AND object.uid=triple.object_uid';

$tables .= ',' . $objectTable . ' AS object';

}

$tripleWhere = $whereClause ? '(' . $tripleWhere . ') AND '.$whereClause : $tripleWhere;

return $this->exec_SELECTquery(

$select,

$tables,

// whereClauseMightContainGroupOrderByButShouldNotContainThose

$tripleWhere,

$groupBy,

$orderBy,

$limit

);

}

/**

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