<?
authorize();
$SimilarID = db_string($_GET['similarid']);

if(!is_number($SimilarID) || !$SimilarID) {
	error(404);
}
if(!check_perms('site_delete_tag')) {
	error(403);
}
$DB->query("SELECT ArtistID FROM artists_similar WHERE SimilarID='$SimilarID'");
$ArtistIDs = $DB->to_array();
$DB->query("DELETE FROM artists_similar WHERE SimilarID='$SimilarID'");
$DB->query("DELETE FROM artists_similar_scores WHERE SimilarID='$SimilarID'");
$DB->query("DELETE FROM artists_similar_votes WHERE SimilarID='$SimilarID'");

foreach ($ArtistIDs as $ArtistID) {
	list($ArtistID) = $ArtistID;
	$Cache->delete_value('artist_'.$ArtistID); // Delete artist cache
	$Cache->delete_value('similar_positions_'.$ArtistID);
}
header('Location: '.$_SERVER['HTTP_REFERER']);
?>