/**
* Return parent record
*
* @throws Exception\LogicException
* @throws Exception\RelationNotFoundException
*
* @param Record $record
* @param string $parent_table
* @return Record|false
*/
public function getParent(Record $record, $parent_table)
{
if ($record->getState() == Record::STATE_DELETED) {
throw new Exception\LogicException(__METHOD__ . ": Logic exception, cannot operate on record that was deleted");
}
$tableName = $this->table->getTableName();
$relations = $this->table->getTableManager()->metadata()->getRelations($tableName);
//$rels = array();
foreach ($relations as $column => $parent) {
if ($parent['referenced_table'] == $parent_table) {
// @todo, check the case when
// table has many relations to the same parent
// we'll have to throw an exception
$record = $this->table->getTableManager()->table($parent_table)->findOneBy(array($parent['referenced_column'] => $record->offsetGet($column)));
return $record;
}
}
throw new Exception\RelationNotFoundException(__METHOD__ . ": Cannot find parent relation between table '{$tableName}' and '{$parent_table}'");
}
/**
* Prefix table join condition
*
* @param string|array $table
* @return array|string
*/
protected function prefixTableJoinCondition($table)
{
$tm = $this->table->getTableManager();
if (is_array($table)) {
$alias = key($table);
$prefixed_table = $tm->getPrefixedTable($table[$alias]);
$table = array($alias => $prefixed_table);
} elseif (is_string($table)) {
$prefixed_table = $tm->getPrefixedTable($table);
$table = $prefixed_table;
}
return $table;
}