/**
* Find matching objects.
*/
function query()
{
$sql = new SQLGenerator($this->example->getCore());
$ds = $this->example->datasource;
$sb = $this->example->storage_method->config->copyObject();
if (!is_null($this->joinedExamples)) {
foreach ($this->joinedExamples as $je) {
$sb->joinTo($je->storage_method->config, TRUE);
}
}
$ds->connect();
$res = $ds->query($sql->select($sb, $this->getCore()));
$cs =& $res->getNext();
$rv = array();
while ($cs) {
$score =& $cs->getCore();
assert(is_array($score));
$clone = $this->example;
// copy
$clone->is_loaded = TRUE;
$clone->set($score);
$rv[] = $clone;
$cs =& $res->getNext();
}
return $rv;
}
/**
* Implementation of load and import varies only slight, so both
* methods refer to this helper method.
* @param bool $do_load TRUE for load, FALSE for import.
* @param ChunsuObject $loadme The object to load.
* @param DataSource $source The data source to load the object from.
* @return bool TRUE is successful, FALSE otherwise.
*/
function loadOrImport($do_load, &$loadme, $source)
{
$pkfield =& $this->config->get('primary-key');
$pka =& $pkfield->get('alias');
$core =& $loadme->getCore();
if (is_array($core) || is_object($core)) {
$dummy =& $loadme->getDummy();
$pkval = $dummy->get($pka);
} else {
$pkval = $core;
}
if (!is_null($pkval)) {
$gen = new SQLGenerator($loadme->getCore());
$cursor = $source->query($gen->select($this->config));
if ($cursor->getNext()) {
$rec =& $cursor->get();
if ($do_load) {
$loadme->setref($rec);
$loadme->is_new = FALSE;
} else {
$loadme->bulkSet($rec);
}
return TRUE;
// TODO: keep reading and handle conflicts if >1 record
}
}
if (!$loadme->config->get('create-on-save')) {
LogError("Cannot load object: no records found.\n" . $loadme->trace());
LogFatal("Cannot load object: no records found. ");
}
return TRUE;
}
