closes #4955

src/topics/delete.js

@@ -32,7 +32,7 @@ module.exports = function(Topics) {
 						db.sortedSetRemove('cid:' + topicData.cid + ':pids', pids, next);
 					});
 				}
-			], function(err, results) {
+			], function(err) {
 				callback(err);
 			});
 		});
@@ -79,7 +79,7 @@ module.exports = function(Topics) {
 						});
 					});
 				}
-			], function(err, results) {
+			], function(err) {
 				callback(err);
 			});
 		});
@@ -109,6 +109,11 @@ module.exports = function(Topics) {
 	};
 
 	Topics.purge = function(tid, uid, callback) {
+		async.waterfall([
+			function(next) {
+				deleteFromFollowersIgnorers(tid, next);
+			},
+			function(next) {
 				async.parallel([
 					function(next) {
 						db.deleteAll([
@@ -132,6 +137,8 @@ module.exports = function(Topics) {
 					function(next) {
 						reduceCounters(tid, next);
 					}
+				], next);
+			}
 		], function(err) {
 			if (err) {
 				return callback(err);
@@ -141,6 +148,26 @@ module.exports = function(Topics) {
 		});
 	};
 
+	function deleteFromFollowersIgnorers(tid, callback) {
+		async.waterfall([
+			function(next) {
+				async.parallel({
+					followers: async.apply(db.getSetMembers, 'tid:' + tid + ':followers'),
+					ignorers: async.apply(db.getSetMembers, 'tid:' + tid + ':ignorers')
+				}, next);
+			},
+			function(results, next) {
+				var followerKeys = results.followers.map(function(uid) {
+					return 'uid:' + uid + ':followed_tids';
+				});
+				var ignorerKeys = results.ignorers.map(function(uid) {
+					return 'uid:' + uid + 'ignored_tids';
+				});
+				db.sortedSetsRemove(followerKeys.concat(ignorerKeys), tid, next);
+			}
+		], callback);
+	}
+
 	function deleteTopicFromCategoryAndUser(tid, callback) {
 		Topics.getTopicFields(tid, ['cid', 'uid'], function(err, topicData) {
 			if (err) {

tests/topics.js

@@ -188,12 +188,24 @@ describe('Topic\'s', function() {
 
 	describe('.purge/.delete', function() {
 		var newTopic;
-
+		var followerUid;
 		before(function(done) {
+			async.waterfall([
+				function(next) {
 					topics.post({uid: topic.userId, title: topic.title, content: topic.content, cid: topic.categoryId}, function(err, result) {
+						assert.ifError(err);
 						newTopic = result.topicData;
-				done();
+						next();
 					});
+				},
+				function(next) {
+					User.create({username: 'topicFollower', password: '123456'}, next);
+				},
+				function(_uid, next) {
+					followerUid = _uid;
+					topics.follow(newTopic.tid, _uid, next);
+				}
+			], done);
 		});
 
 		it('should delete the topic', function(done) {
@@ -206,10 +218,14 @@ describe('Topic\'s', function() {
 		it('should purge the topic', function(done) {
 			topics.purge(newTopic.tid, 1, function(err) {
 				assert.ifError(err);
+				db.isSortedSetMember('uid:' + followerUid + ':followed_tids', newTopic.tid, function(err, isMember) {
+					assert.ifError(err);
+					assert.strictEqual(false, isMember);
 					done();
 				});
 			});
 		});
+	});
 
 	describe('.ignore', function(){
 		var newTid;