cache group membership methods

groups.isMember
groups.isMembers
groups.isMemberOfGroups
clear cache for user on group.join & group.leave

src/controllers/admin/cache.js

@@ -0,0 +1,36 @@
+'use strict';
+
+var cacheController = {};
+
+cacheController.get = function(req, res, next) {
+	var postCache = require('../../posts/cache');
+	var groupCache = require('../../groups').cache;
+
+	var avgPostSize = 0;
+	var percentFull = 0;
+	if (postCache.itemCount > 0) {
+		avgPostSize = parseInt((postCache.length / postCache.itemCount), 10);
+		percentFull = ((postCache.length / postCache.max) * 100).toFixed(2);
+	}
+
+	res.render('admin/advanced/cache', {
+		postCache: {
+			length: postCache.length,
+			max: postCache.max,
+			itemCount: postCache.itemCount,
+			percentFull: percentFull,
+			avgPostSize: avgPostSize,
+			dump: req.query.debug ? postCache.dump() : undefined
+		},
+		groupCache: {
+			length: groupCache.length,
+			max: groupCache.max,
+			itemCount: groupCache.itemCount,
+			percentFull: ((groupCache.length / groupCache.max) * 100).toFixed(2),
+			dump: req.query.debug ? groupCache.dump() : undefined
+		}
+	});
+};
+
+
+module.exports = cacheController;