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fix empty unsub/punsub TypeError

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When unsubscribe or punsubscribe is called and it has
no subscriptions, the reply[1] is a null which causes
`TypeError: Cannot call method 'toString' of null`

Check if reply[1] is null before calling toString otherwise
just pass null.
This commit is contained in:
Jeff Barczewski
2013-03-26 10:49:13 -05:00
parent 0c143a7299
commit 655681f790
1 changed files with 5 additions and 3 deletions
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6
index.js
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@@ -629,10 +629,12 @@ RedisClient.prototype.return_reply = function (reply) {
} }
// subscribe commands take an optional callback and also emit an event, but only the first response is included in the callback // subscribe commands take an optional callback and also emit an event, but only the first response is included in the callback
// TODO - document this or fix it so it works in a more obvious way // TODO - document this or fix it so it works in a more obvious way
// reply[1] can be null
var reply1String = (reply[1] === null) ? null : reply[1].toString();
if (command_obj && typeof command_obj.callback === "function") { if (command_obj && typeof command_obj.callback === "function") {
try_callback(command_obj.callback, reply[1].toString()); try_callback(command_obj.callback, reply1String);
} }
this.emit(type, reply[1].toString(), reply[2]); // channel, count this.emit(type, reply1String, reply[2]); // channel, count
} else { } else {
throw new Error("subscriptions are active but got unknown reply type " + type); throw new Error("subscriptions are active but got unknown reply type " + type);
} }