anchor.diff:  			return _cache[username];
   		} else {
   			List<User> rows = await dbConn.query(
  -				"SELECT elevation FROM users WHERE username = @username",
  -				User, {"username": username}
  +				'SELECT elevation FROM users WHERE username = @username',
  +				User, {'username': username}
   			);
   
  -			String elevationStr = "_";
  +			String elevationStr = DEFAULT;
   			if (rows.length > 0) {
   				elevationStr = rows.first.elevation ?? elevationStr;
   			}
  
positive.code: 	}
  
  	/// Used to list guides/devs on site
  	@app.Route("/list/:status")
  	Future<List<Map<String, dynamic>>> list(String status) async {
  		List<User> rows = await dbConn.query(
  			"SELECT username, last_login FROM users"
  			" WHERE elevation = @elevation",
  			User, {"elevation": status}
  		);
  
  		List<Map<String, dynamic>> users = new List();
  
  		rows.forEach((User user) {
  			users.add({
  				"username": user.username,
  				"last_login": user.last_login?.toString() ?? "never"
  			});
  		});
  
  
negative.code: 	}
  
  	/// Used by Slack
  	@app.Route('/set')
  	Future<String> set(
  		@app.QueryParam('token') String token,
  		@app.QueryParam('channel_id') String channel,
  		@app.QueryParam('text') String text
  	) async {
  		if (token != slackPromoteToken) {
  			return 'Invalid token';
  		}
  
  		if (channel != 'G0277NLQS') {
  			return 'Run this from the administration group';
  		}
  
  		String elevation;
  		String username;
  		try {
  			List<String> parts = text.split(' ');
  			elevation = parts.first.trim();
  			username = parts.sublist(1).join(' ');
  		} catch(_) {
  			return 'Invalid parameters';
  		}
  
  		if (elevation == 'none') {
  			elevation = DEFAULT;
  		}
  
  		int rows = await dbConn.execute(
  			'UPDATE users SET elevation = @elevation WHERE username = @username',
  			{'elevation': elevation, 'username': username}
  		);
  
  		if (rows == 1) {
  			_cache[username] = elevation;
  			return '$username is now ' + (elevation != DEFAULT ? 'a $elevation' : 'demoted');
  		} else {
  			return 'An unknown error occurred. Try again?';
  		}
  	}
  }
  