/**
*
* Fetches the related record or collection for a native ID or record.
*
* @param mixed $spec If a scalar, treated as the native primary key
* value; if an array or record, retrieves the native primary key value
* from it.
*
* @return object The related record or collection object.
*
*/
public function fetch($spec)
{
if ($spec instanceof Solar_Sql_Model_Record || is_array($spec)) {
$native_id = $spec[$this->native_col];
} else {
$native_id = $spec;
}
$where = array();
$cond = "{$this->foreign_alias}.{$this->foreign_col} = ?";
$where[$cond] = $native_id;
$where = array_merge($where, $this->getForeignConditions($this->foreign_alias));
$fetch = array('alias' => $this->foreign_alias, 'where' => $where, 'order' => $this->order);
if ($this->isOne()) {
$obj = $this->_foreign_model->fetchOne($fetch);
} elseif ($this->isMany()) {
$obj = $this->_foreign_model->fetchAll($fetch);
} else {
throw $this->_exception('ERR_NOT_ONE_OR_ALL', array('class' => get_class($this)));
}
if (!$obj) {
$obj = $this->fetchEmpty();
}
return $obj;
}
