fixes #5776

src/user.js

@@ -277,12 +277,30 @@ User.getModeratorUids = function (callback) {
 	async.waterfall([
 		async.apply(db.getSortedSetRange, 'categories:cid', 0, -1),
 		function (cids, next) {
-			var groupNames = cids.map(function (cid) {
-				return 'cid:' + cid + ':privileges:moderate';
-			});
+			var groupNames = cids.reduce(function (memo, cid) {
+				memo.push('cid:' + cid + ':privileges:moderate');
+				memo.push('cid:' + cid + ':privileges:groups:moderate');
+				return memo;
+			}, []);
 
 			groups.getMembersOfGroups(groupNames, next);
 		},
+		function (memberSets, next) {
+			// Every other set is actually a list of user groups, not uids, so convert those to members
+			var sets = memberSets.reduce(function (memo, set, idx) {
+				if (idx % 2) {
+					memo.working.push(set);
+				} else {
+					memo.regular.push(set);
+				}
+
+				return memo;
+			}, { working: [], regular: [] });
+
+			groups.getMembersOfGroups(sets.working, function (err, memberSets) {
+				next(null, sets.regular.concat(memberSets));
+			});
+		},
 		function (memberSets, next) {
 			next(null, _.union.apply(_, memberSets));
 		},

test/user.js

@@ -155,6 +155,51 @@ describe('User', function () {
 		});
 	});
 
+	describe('.getModeratorUids()', function () {
+		before(function (done) {
+			groups.join('cid:1:privileges:moderate', 1, done);
+		});
+
+		it('should retrieve all users with moderator bit in category privilege', function (done) {
+			User.getModeratorUids(function (err, uids) {
+				assert.ifError(err);
+				assert.strictEqual(1, uids.length);
+				assert.strictEqual(1, parseInt(uids[0]));
+				done();
+			});
+		});
+
+		after(function (done) {
+			groups.leave('cid:1:privileges:moderate', 1, done);
+		});
+	});
+
+	describe('.getModeratorUids()', function () {
+		before(function (done) {
+			async.series([
+				async.apply(groups.create, { name: 'testGroup' }),
+				async.apply(groups.join, 'cid:1:privileges:groups:moderate', 'testGroup'),
+				async.apply(groups.join, 'testGroup', 1),
+			], done);
+		});
+
+		it('should retrieve all users with moderator bit in category privilege', function (done) {
+			User.getModeratorUids(function (err, uids) {
+				assert.ifError(err);
+				assert.strictEqual(1, uids.length);
+				assert.strictEqual(1, parseInt(uids[0]));
+				done();
+			});
+		});
+
+		after(function (done) {
+			async.series([
+				async.apply(groups.leave, 'cid:1:privileges:groups:moderate', 'testGroup'),
+				async.apply(groups.destroy, 'testGroup'),
+			], done);
+		});
+	});
+
 	describe('.isReadyToPost()', function () {
 		it('should error when a user makes two posts in quick succession', function (done) {
 			Meta.config = Meta.config || {};