bulk fix

src/controllers/index.js

@@ -76,7 +76,7 @@ Controllers.home = function(req, res, next) {
 						childCategories.push.apply(childCategories, categoryData[i].children);
 					}
 
-					if (categoryData[i].parent) {
+					if (categoryData[i].parent && categoryData[i].parent.cid) {
 						categoryData.splice(i, 1);
 					}
 				}

src/database/mongo/sets.js

@@ -33,6 +33,11 @@ module.exports = function(db, module) {
 
 	module.setsAdd = function(keys, value, callback) {
 		callback = callback || helpers.noop;
+
+		if (!Array.isArray(keys) || !keys.length) {
+			return callback();
+		}
+
 		if(!Array.isArray(value)) {
 			value = [value];
 		}