Embedding Clinks (try 1)
See whether user has clinked:
$q = new Query( [ '_id' => new ObjectID( $checkin_id ), 'clinked_by.slug' => $slug );
$res = iterator_to_array( $manager->executeQuery( 'dramio.checkins', $q ) );
return count( $res[0] ) > 0;
Remove Clink:
$q = [ '_id' => new ObjectID( $checkin_id ), 'clinked_by.slug' => $slug ];
$spec = [ *'$pull'* => [
'clinked_by' => [ 'slug' => $user->slug, 'name' => $user->fullname ]
] ];
$bw = new BulkWrite;
$bw->update( $q, $spec );
$manager->executeBulkWrite( $bw );