From 163209afb9c75c0a88502303b9ea591b1c216116 Mon Sep 17 00:00:00 2001
From: John Maguire <jmaguire2013@gmail.com>
Date: Wed, 20 Mar 2013 17:47:01 -0400
Subject: [PATCH] adding some extra checks to ~help command to prevent errors

---
 modules/command/commands.js | 14 +++++++++++++-
 1 file changed, 13 insertions(+), 1 deletion(-)

diff --git a/modules/command/commands.js b/modules/command/commands.js
index 96ac77a..69ec05f 100644
--- a/modules/command/commands.js
+++ b/modules/command/commands.js
@@ -18,8 +18,20 @@ var commands = function(dbot) {
 
         '~help': function(event) {
             var moduleName = event.params[1];
+            if(!moduleName) {
+                event.reply(dbot.t('usage', {
+                    'command': '~help',
+                    'usage': '~help [module]'
+                }));
+                return;
+            }
+            
             if(!_.has(dbot.modules, moduleName)) {
-                var moduleName = dbot.commands[moduleName].module; 
+                if(_.has(dbot.commands, moduleName)) {
+                    var moduleName = dbot.commands[moduleName].module; 
+                } else {
+                    var moduleName = undefined;
+                }
             }
 
             if(moduleName && _.has(dbot.config[moduleName], 'help')) {