/**
* Creates an array criteria for a key index
* @param mixed $meta Meta or class name
* @return array Criteria
*/
public function createKeyCriteria($meta, $id, $indexId = null)
{
if ($indexId == null) {
$indexId = 'primary';
}
$meta = !$meta instanceof Meta ? $this->mapper->getMeta($meta) : $meta;
if (!isset($meta->indexes[$indexId])) {
throw new Exception("Index {$indexId} does not exist on meta {$meta->id}");
}
$index = $meta->indexes[$indexId];
if (!$index['key']) {
throw new Exception("Index {$indexId} is not a key index for meta {$meta->id}");
}
if (!is_array($id)) {
$id = array($id);
}
$where = array();
foreach ($index['fields'] as $idx => $p) {
$idVal = isset($id[$p]) ? $id[$p] : (isset($id[$idx]) ? $id[$idx] : null);
if (!$idVal) {
throw new \InvalidArgumentException("Couldn't get ID value when getting {$meta->id} by index '{$indexId}'");
}
$where[$p] = $idVal;
}
return array('where' => $where);
}
public function __construct(Mapper $mapper, $class)
{
if (!$this->engine) {
throw new \UnexpectedValueException();
}
$this->mapper = $mapper;
if ($class instanceof Meta) {
$this->meta = $class;
} else {
$this->meta = $mapper->getMeta($class);
}
}
