original_string: public static function delete_orphaned($issuerid = false) {
          global $DB;
          // Delete any linked_login entries with a issuerid
          // which does not exist in the issuer table.
          // In the left join, the issuer id will be null
          // where a match linked_login.issuerid is not found.
          $sql = "DELETE FROM {" . self::TABLE . "}
                   WHERE issuerid NOT IN (SELECT id FROM {" . \core\oauth2\issuer::TABLE . "})";
          $params = [];
          if (!empty($issuerid)) {
              $sql .= ' AND issuerid = ?';
              $params['issuerid'] = $issuerid;
          }
          return $DB->execute($sql, $params);
      }
code: public static function delete_orphaned($issuerid = false) {
          global $DB;
          // Delete any linked_login entries with a issuerid
          // which does not exist in the issuer table.
          // In the left join, the issuer id will be null
          // where a match linked_login.issuerid is not found.
          $sql = "DELETE FROM {" . self::TABLE . "}
                   WHERE issuerid NOT IN (SELECT id FROM {" . \core\oauth2\issuer::TABLE . "})";
          $params = [];
          if (!empty($issuerid)) {
              $sql .= ' AND issuerid = ?';
              $params['issuerid'] = $issuerid;
          }
          return $DB->execute($sql, $params);
      }
code_tokens: public static function delete_orphaned ( $ issuerid = false ) { global $ DB ; // Delete any linked_login entries with a issuerid // which does not exist in the issuer table. // In the left join, the issuer id will be null // where a match linked_login.issuerid is not found. $ sql = "DELETE FROM {" . self :: TABLE . "}
                   WHERE issuerid NOT IN (SELECT id FROM {" . \ core \ oauth2 \ issuer :: TABLE . "})" ; $ params = [ ] ; if ( ! empty ( $ issuerid ) ) { $ sql .= ' AND issuerid = ?' ; $ params [ 'issuerid' ] = $ issuerid ; } return $ DB -> execute ( $ sql , $ params ) ; }
docstring: Remove all linked logins that are using issuers that have been deleted.
  
  @param int $issuerid The issuer id of the issuer to check, or false to check all (defaults to all)
  @return boolean
docstring_tokens: Remove all linked logins that are using issuers that have been deleted .