dont load all groups in topics

src/posts/user.js

@@ -12,12 +12,43 @@ var async = require('async'),
 module.exports = function(Posts) {
 
 	Posts.getUserInfoForPosts = function(uids, uid, callback) {
+		var groupsMap = {};
+		var userSettings;
 		async.parallel({
-			groups: function(next) {
-				groups.getUserGroups(uids, next);
+			groupTitles: function(next) {
+				var keys = uids.map(function(uid) {
+					return 'user:' + uid + ':settings';
+				});
+				async.waterfall([
+					function (next) {
+						db.getObjectsFields(keys, ['groupTitle'], next);
 					},
-			userSettings: function(next) {
-				user.getMultipleUserSettings(uids, next);
+					function (_userSettings, next) {
+						userSettings = _userSettings;
+						var groupKeys = userSettings.filter(function(userSetting) {
+							return userSetting && userSetting.groupTitle;
+						}).map(function(userSetting) {
+							return userSetting.groupTitle;
+						}).filter(function(groupTitle, index, array) {
+							return groupTitle && array.indexOf(groupTitle) === index;
+						});
+						groups.getGroupsData(groupKeys, next);
+					},
+					function (groupsData, next) {
+						groupsData.forEach(function(group) {
+							if (group && group.userTitleEnabled) {
+								groupsMap[group.name] = {
+									name: group.name,
+									slug: group.slug,
+									labelColor: group.labelColor,
+									icon: group.icon,
+									userTitle: group.userTitle
+								};
+							}
+						});
+						next(null, userSettings);
+					}
+				], next);
 			},
 			userData: function(next) {
 				user.getUsersFields(uids, ['uid', 'username', 'fullname', 'userslug', 'reputation', 'postcount', 'picture', 'signature', 'banned', 'status', 'lastonline'], next);
@@ -29,25 +60,6 @@ module.exports = function(Posts) {
 
 			var userData = results.userData;
 			userData.forEach(function(userData, i) {
-				userData.groups = [];
-
-				results.groups[i].forEach(function(group, index) {
-					userData.groups[index] = {
-						name: group.name,
-						slug: group.slug,
-						labelColor: group.labelColor,
-						icon: group.icon,
-						userTitle: group.userTitle
-					};
-
-					if (results.userSettings[i] && group.name === results.userSettings[i].groupTitle && group.userTitleEnabled) {
-						userData.selectedGroup = userData.groups[index];
-					}
-				});
-				userData.status = user.getStatus(userData);
-			});
-
-			async.map(userData, function(userData, next) {
 				userData.uid = userData.uid || 0;
 				userData.username = userData.username || '[[global:guest]]';
 				userData.userslug = userData.userslug || '';
@@ -55,8 +67,18 @@ module.exports = function(Posts) {
 				userData.postcount = userData.postcount || 0;
 				userData.banned = parseInt(userData.banned, 10) === 1;
 				userData.picture = userData.picture || '';
+				userData.status = user.getStatus(userData);
+				userData.groupTitle = results.groupTitles[i].groupTitle;
+			});
 
+			async.map(userData, function(userData, next) {
 				async.parallel({
+					isMemberOfGroup: function (next) {
+						if (!userData.groupTitle) {
+							return next();
+						}
+						groups.isMember(userData.uid, userData.groupTitle, next);
+					},
 					signature: function(next) {
 						if (!userData.signature || parseInt(meta.config.disableSignatures, 10) === 1) {
 							userData.signature = '';
@@ -72,6 +94,10 @@ module.exports = function(Posts) {
 						return next(err);
 					}
 
+					if (results.isMemberOfGroup && userData.groupTitle && groupsMap[userData.groupTitle]) {
+						userData.selectedGroup = groupsMap[userData.groupTitle];
+					}
+
 					userData.custom_profile_info = results.customProfileInfo.profile;
 					userData.signature = sanitizeSignature(userData.signature);