fix: #7788 No new posts (#7793)

* feat: debug no-new-posts

* feat: add test for user delete

* fix: timeout for flag test

* feat: shorter

src/categories/recentreplies.js

@@ -29,7 +29,8 @@ module.exports = function (Categories) {
 			return await db.sortedSetAdd('cid:' + cid + ':recent_tids', Date.now(), tid);
 		}
 		const data = await db.getSortedSetRangeWithScores('cid:' + cid + ':recent_tids', 0, count - numRecentReplies);
-		if (data.length) {
+		const shouldRemove = !(data.length === 1 && count === 1 && data[0].value === String(tid));
+		if (data.length && shouldRemove) {
 			await db.sortedSetsRemoveRangeByScore(['cid:' + cid + ':recent_tids'], '-inf', data[data.length - 1].score);
 		}
 		await db.sortedSetAdd('cid:' + cid + ':recent_tids', Date.now(), tid);

src/posts/delete.js

@@ -36,6 +36,7 @@ module.exports = function (Posts) {
 				db.sortedSetRemove('cid:' + topicData.cid + ':pids', pid) :
 				db.sortedSetAdd('cid:' + topicData.cid + ':pids', postData.timestamp, pid),
 		]);
+		await categories.updateRecentTidForCid(postData.cid);
 		plugins.fireHook('action:post.' + type, { post: _.clone(postData), uid: uid });
 		return postData;
 	}
@@ -45,11 +46,12 @@ module.exports = function (Posts) {
 		if (!postData) {
 			return;
 		}
-
+		const topicData = await topics.getTopicFields(postData.tid, ['tid', 'cid', 'pinned']);
+		postData.cid = topicData.cid;
 		await plugins.fireHook('filter:post.purge', { post: postData, pid: pid, uid: uid });
 		await Promise.all([
-			deletePostFromTopicUserNotification(postData),
+			deletePostFromTopicUserNotification(postData, topicData),
-			deletePostFromCategoryRecentPosts(pid),
+			deletePostFromCategoryRecentPosts(postData),
 			deletePostFromUsersBookmarks(pid),
 			deletePostFromUsersVotes(pid),
 			deletePostFromReplies(postData),
@@ -60,13 +62,13 @@ module.exports = function (Posts) {
 		await db.delete('post:' + pid);
 	};
 
-	async function deletePostFromTopicUserNotification(postData) {
+	async function deletePostFromTopicUserNotification(postData, topicData) {
 		await db.sortedSetsRemove([
 			'tid:' + postData.tid + ':posts',
 			'tid:' + postData.tid + ':posts:votes',
 			'uid:' + postData.uid + ':posts',
 		], postData.pid);
-		const topicData = await topics.getTopicFields(postData.tid, ['tid', 'cid', 'pinned']);
+
 		const tasks = [
 			db.decrObjectField('global', 'postCount'),
 			db.decrObjectField('category:' + topicData.cid, 'post_count'),
@@ -79,16 +81,18 @@ module.exports = function (Posts) {
 			user.incrementUserPostCountBy(postData.uid, -1),
 			notifications.rescind('new_post:tid:' + postData.tid + ':pid:' + postData.pid + ':uid:' + postData.uid),
 		];
+
 		if (!topicData.pinned) {
-			tasks.push(db.sortedSetIncrBy, 'cid:' + topicData.cid + ':tids:posts', -1, postData.tid);
+			tasks.push(db.sortedSetIncrBy('cid:' + topicData.cid + ':tids:posts', -1, postData.tid));
 		}
 		await Promise.all(tasks);
 	}
 
-	async function deletePostFromCategoryRecentPosts(pid) {
+	async function deletePostFromCategoryRecentPosts(postData) {
 		const cids = await categories.getAllCidsFromSet('categories:cid');
 		const sets = cids.map(cid => 'cid:' + cid + ':pids');
-		await db.sortedSetsRemove(sets, pid);
+		await db.sortedSetsRemove(sets, postData.pid);
+		await categories.updateRecentTidForCid(postData.cid);
 	}
 
 	async function deletePostFromUsersBookmarks(pid) {

src/topics/delete.js

@@ -5,6 +5,7 @@ var db = require('../database');
 
 var user = require('../user');
 var posts = require('../posts');
+const categories = require('../categories');
 var plugins = require('../plugins');
 var batch = require('../batch');
 
@@ -33,6 +34,7 @@ module.exports = function (Topics) {
 			Topics.getPids(tid),
 		]);
 		await db.sortedSetRemove('cid:' + cid + ':pids', pids);
+		await categories.updateRecentTidForCid(cid);
 	}
 
 	async function addTopicPidsToCid(tid) {
@@ -49,6 +51,7 @@ module.exports = function (Topics) {
 			scores.push(post.timestamp);
 		});
 		await db.sortedSetAdd('cid:' + cid + ':pids', scores, pidsToAdd);
+		await categories.updateRecentTidForCid(cid);
 	}
 
 	Topics.restore = async function (tid) {
@@ -137,6 +140,7 @@ module.exports = function (Topics) {
 			], tid),
 			user.decrementUserFieldBy(topicData.uid, 'topiccount', 1),
 		]);
+		await categories.updateRecentTidForCid(topicData.cid);
 	}
 
 	async function reduceCounters(tid) {

src/topics/tools.js

@@ -43,7 +43,6 @@ module.exports = function (Topics) {
 		} else {
 			await Topics.restore(tid);
 		}
-		await categories.updateRecentTidForCid(topicData.cid);
 
 		topicData.deleted = isDelete ? 1 : 0;
 

test/flags.js

@@ -449,7 +449,7 @@ describe('Flags', function () {
 					}
 
 					assert.strictEqual('[1,"this is my note"]', notes[0]);
-					done();
+					setTimeout(done, 10);
 				});
 			});
 		});

test/posts.js

@@ -73,6 +73,37 @@ describe('Post\'s', function () {
 		});
 	});
 
+	it('should update category teaser properly', async function () {
+		const util = require('util');
+		const getCategoriesAsync = util.promisify(async function getCategories(callback) {
+			request(nconf.get('url') + '/api/categories', { json: true }, function (err, res, body) {
+				callback(err, body);
+			});
+		});
+
+		const postResult = await topics.post({ uid: globalModUid, cid: cid, title: 'topic title', content: '123456789' });
+
+		let data = await getCategoriesAsync();
+		assert.equal(data.categories[0].teaser.pid, postResult.postData.pid);
+		assert.equal(data.categories[0].posts[0].content, '123456789');
+		assert.equal(data.categories[0].posts[0].pid, postResult.postData.pid);
+
+		const newUid = await user.create({ username: 'teaserdelete' });
+		const newPostResult = await topics.post({ uid: newUid, cid: cid, title: 'topic title', content: 'xxxxxxxx' });
+
+		data = await getCategoriesAsync();
+		assert.equal(data.categories[0].teaser.pid, newPostResult.postData.pid);
+		assert.equal(data.categories[0].posts[0].content, 'xxxxxxxx');
+		assert.equal(data.categories[0].posts[0].pid, newPostResult.postData.pid);
+
+		await user.delete(1, newUid);
+
+		data = await getCategoriesAsync();
+		assert.equal(data.categories[0].teaser.pid, postResult.postData.pid);
+		assert.equal(data.categories[0].posts[0].content, '123456789');
+		assert.equal(data.categories[0].posts[0].pid, postResult.postData.pid);
+	});
+
 	it('should change owner of post and topic properly', async function () {
 		const oldUid = await user.create({ username: 'olduser' });
 		const newUid = await user.create({ username: 'newuser' });