/** Gets TRelationType object by ID
* @return TRelationType or NULL in case of error
*/
public static function getByID($_id)
{
$relation_arr = TRelationType::getRelationType("id", $_id);
return $relation_arr[0];
}
/** Gets TRelation object by property $property_name with value $property_value.
* @return TRelation or NULL in case of error
*/
public static function getRelation($property_name, $property_value, $meaning_obj = NULL)
{
$link_db = Piwidict::getDatabaseConnection();
$query = "SELECT * FROM relation WHERE `{$property_name}`='{$property_value}' order by id";
$result = $link_db->query_e($query, "Query failed in " . __METHOD__ . " in file <b>" . __FILE__ . "</b>, string <b>" . __LINE__ . "</b>");
if ($link_db->query_count($result) == 0) {
return NULL;
}
$relation_arr = array();
while ($row = $result->fetch_object()) {
/*
if ($meaning_obj == NULL)
$meaning_obj = TMeaning::getByID($row->meaning_id);
*/
$relation_arr[] = new TRelation($row->id, $meaning_obj, TWikiText::getByID($row->wiki_text_id), TRelationType::getByID($row->relation_type_id), $row->meaning_summary);
}
return $relation_arr;
}