Add error checking to not trace on empty db

lorebot/lorebot.go

@@ -361,6 +361,12 @@ func rnghandler(rtm *slack.RTM, ev *slack.MessageEvent, redisClient *redis.Clien
 		glogger.Error.Println(err)
 		println(err)
 	}
+
+	// if the array is empty, exit early
+	if len(command) <= 0 {
+		return
+	}
+
 	// pick a random one
 	rand.Seed(time.Now().UnixNano())
 	rngLore := fmt.Sprint(command[rand.Intn(len(command))])
@@ -482,11 +488,17 @@ func rmdubshandler(rtm *slack.RTM, ev *slack.MessageEvent, rmContent string, red
 func dubshandler(rtm *slack.RTM, ev *slack.MessageEvent, redisClient *redis.Client) {
 	// aka index:command:added
 	newType := fmt.Sprintf("index:dubs")
-	//command, err := botfunc.Query(newType, redisClient)
+
 	command, err := loreQuery(newType, redisClient)
 	if err != nil {
 		glogger.Error.Println(err)
 	}
+
+	// if the array is empty, exit early
+	if len(command) <= 0 {
+		return
+	}
+
 	// pick a random one
 	rand.Seed(time.Now().UnixNano())
 	rngDubs := fmt.Sprint(command[rand.Intn(len(command))])