fix search on mongo

src/database/mongo/main.js

@@ -34,12 +34,20 @@ module.exports = function(db, module) {
 			searchQuery.$text = {$search: data.content};
 		}
 
-		if (data.cid) {
-			searchQuery.cid = data.cid;
+		if (Array.isArray(data.cid) && data.cid.length) {
+		 	if (data.cid.length > 1) {
+				searchQuery.cid = {$in: data.cid.map(String)};
+			} else {
+				searchQuery.cid = data.cid[0].toString();
+			}
 		}
 
-		if (data.uid) {
-			searchQuery.uid = data.uid;
+		if (Array.isArray(data.uid) && data.uid.length) {
+			if (data.uid.length > 1) {
+				searchQuery.uid = {$in: data.uid.map(String)};
+			} else {
+				searchQuery.uid = data.uid[0].toString();
+			}
 		}
 
 		db.collection('search').find(searchQuery, {limit: limit}).toArray(function(err, results) {

src/search.js

@@ -414,11 +414,7 @@ function getChildrenCids(cids, uid, callback) {
 
 function getSearchUids(data, callback) {
 	if (data.postedBy) {
-		if (Array.isArray(data.postedBy)) {
-			user.getUidsByUsernames(data.postedBy, callback);
-		} else {
-			user.getUidByUsername([data.postedBy], callback);
-		}
+		user.getUidsByUsernames(Array.isArray(data.postedBy) ? data.postedBy : [data.postedBy], callback);
 	} else {
 		callback(null, []);
 	}

src/user.js

@@ -335,7 +335,15 @@ var	async = require('async'),
 	};
 
 	User.getUidsByUsernames = function(usernames, callback) {
-		db.getObjectFields('username:uid', usernames, callback);
+		db.getObjectFields('username:uid', usernames, function(err, users) {
+			if (err) {
+				return callback(err);
+			}
+			var uids = usernames.map(function(username) {
+				return users[username];
+			});
+			callback(null, uids);
+		});
 	};
 
 	User.getUidByUserslug = function(userslug, callback) {