protected function getIndex($collection, $name)
{
$collection = DB::getCollection($collection);
foreach ($collection->getIndexInfo() as $index) {
if (isset($index['key'][$name])) {
return $index;
}
}
return false;
}
/**
* Returns the next ID for the given sequence.
*
* @param $sequence Name of the desired sequence.
* @return The next numeric ID for the desired sequence.
*/
public static function getNextId($sequence)
{
$seq = DB::getCollection(static::$collectionName)->findAndModify(array('_id' => $sequence), array('$inc' => array('seq' => 1)), null, array('new' => true, 'upsert' => true));
return $seq['seq'];
}
/**
* Get a statement count, either for an LRS or for the entire site if no lrs_id passed
*/
public function getStatementCount($lrs_id = null)
{
$collection = \DB::getCollection('statements');
$query = [];
//Limit by LRS
if ($lrs_id) {
if (!$lrs_id instanceof \MongoId) {
$lrs_id = new \MongoId($lrs_id);
}
$query['lrs_id'] = $lrs_id;
}
return $collection->count($query, ['hint' => ['lrs_id' => 1]]);
}
/**
* Display the super admin lrs view.
* @return Response
*/
public function lrs()
{
$opts = ['user' => \Auth::user()];
$lrss = $this->lrs->index($opts);
$lrs_repo = $this->lrs;
$collection = \DB::getCollection('statements');
return Response::json(array_map(function ($lrs) use($lrs_repo) {
$lrs->statement_total = $lrs_repo->getStatementCount($lrs->_id);
return $lrs;
}, $lrss));
}
