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'use strict';
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const Mongo = require(__dirname+'/db.js')
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, Boards = require(__dirname+'/boards.js')
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, db = Mongo.client.db('jschan').collection('posts')
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module.exports = {
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db,
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getThreadPage: async (board, thread) => {
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const threadsBefore = await db.countDocuments({
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'board': board,
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'thread': null,
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'bumped': {
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'$gte': thread.bumped
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}
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});
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return Math.ceil(threadsBefore/10) || 1; //1 because 0 threads before is page 1
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},
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getRecent: async (board, page, limit=10) => {
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// get all thread posts (posts with null thread id)
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const threads = await db.find({
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'thread': null,
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'board': board
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},{
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'projection': {
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'salt': 0,
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'password': 0,
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'ip': 0,
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'reports': 0,
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'globalreports': 0,
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}
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}).sort({
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'sticky': -1,
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'bumped': -1,
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}).skip(10*(page-1)).limit(limit).toArray();
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// add last 5 posts in reverse order to preview
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await Promise.all(threads.map(async thread => {
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const replies = await db.find({
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'thread': thread.postId,
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'board': board
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},{
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'projection': {
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'salt': 0,
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'password': 0,
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'ip': 0,
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'reports': 0,
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'globalreports': 0,
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}
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}).sort({
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'postId': -1
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}).limit(5).toArray();
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//reverse order for board page
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thread.replies = replies.reverse();
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//if enough replies, show omitted count
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if (thread.replyposts > 5) {
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//cout omitted image and posts
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const numPreviewImages = replies.reduce((acc, post) => { return acc + post.files.length }, 0);
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thread.omittedimages = thread.replyfiles - numPreviewImages;
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thread.omittedposts = thread.replyposts - replies.length;
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}
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}));
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return threads;
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},
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getReplyCounts: (board, thread) => {
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return db.aggregate([
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{
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'$match': {
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'thread': thread,
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'board': board,
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}
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}, {
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'$group': {
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'_id': null,
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'replyposts': {
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'$sum': 1
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},
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'replyfiles': {
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'$sum': {
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'$size': '$files'
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}
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}
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}
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}
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]).toArray();
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},
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setReplyCounts: (board, thread, replyposts, replyfiles) => {
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return db.updateOne({
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'postId': thread,
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'board': board
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}, {
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'$set': {
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'replyposts': replyposts,
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'replyfiles': replyfiles,
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}
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})
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},
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getPages: (board) => {
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return db.countDocuments({
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'board': board,
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'thread': null
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});
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},
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getThread: async (board, id) => {
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// get thread post and potential replies concurrently
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const data = await Promise.all([
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db.findOne({
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'postId': id,
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'board': board,
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'thread': null,
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}, {
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'projection': {
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'salt': 0,
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'password': 0,
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'ip': 0,
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'reports': 0,
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'globalreports': 0,
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}
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}),
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module.exports.getThreadPosts(board, id)
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])
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// attach the replies to the thread post
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const thread = data[0];
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if (thread) {
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thread.replies = data[1];
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}
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return thread;
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},
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getThreadPosts: (board, id) => {
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// all posts within a thread
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return db.find({
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'thread': id,
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'board': board
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}, {
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'projection': {
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'salt': 0 ,
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'password': 0,
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'ip': 0,
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'reports': 0,
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'globalreports': 0,
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}
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}).sort({
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'postId': 1
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}).toArray();
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},
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getMultipleThreadPosts: (board, ids) => {
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//all posts from multiple threads in a single board
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return db.find({
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'board': board,
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'thread': {
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'$in': ids
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}
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}, {
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'projection': {
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'salt': 0 ,
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'password': 0,
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'ip': 0,
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'reports': 0,
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'globalreports': 0,
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}
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}).toArray();
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},
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getCatalog: (board) => {
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// get all threads for catalog
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return db.find({
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'thread': null,
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'board': board
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}, {
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'projection': {
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'salt': 0,
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'password': 0,
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'ip': 0,
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'reports': 0,
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'globalreports': 0,
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}
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}).sort({
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'sticky': -1,
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'bumped': -1,
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}).toArray();
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},
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getPost: (board, id, admin) => {
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// get a post
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if (admin) {
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return db.findOne({
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'postId': id,
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'board': board
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});
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}
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return db.findOne({
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'postId': id,
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'board': board
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}, {
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'projection': {
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'salt': 0,
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'password': 0,
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'ip': 0,
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'reports': 0,
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'globalreports': 0,
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}
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});
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},
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//takes array "ids" of post ids
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getPosts: (board, ids, admin) => {
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if (admin) {
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return db.find({
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'postId': {
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'$in': ids
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},
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'board': board
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}).toArray();
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}
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return db.find({
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'postId': {
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'$in': ids
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},
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'board': board
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}, {
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'projection': {
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'salt': 0,
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'password': 0,
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'ip': 0,
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'reports': 0,
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'globalreports': 0,
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}
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}).toArray();
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},
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// get only thread and post id for use in quotes
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getPostsForQuotes: (queryOrs) => {
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return db.find({
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'$or': queryOrs
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}, {
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'projection': {
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'postId': 1,
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'board': 1,
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'thread': 1,
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}
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}).limit(15).toArray(); //limit 15 quotes for now.
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},
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//takes array "ids" of mongo ids to get posts from any board
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globalGetPosts: (ids) => {
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return db.find({
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'_id': {
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'$in': ids
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},
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}).toArray();
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},
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insertOne: async (board, data, thread) => {
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if (data.thread !== null) {
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const filter = {
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'postId': data.thread,
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'board': board._id
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}
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//update thread reply and reply file count
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const query = {
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'$inc': {
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'replyposts': 1,
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'replyfiles': data.files.length
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}
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}
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//if post email is not sage, and thread not saged, set bump date
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if (data.email !== 'sage' && !thread.saged) {
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query['$set'] = {
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'bumped': Date.now()
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}
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}
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//update the thread
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await db.updateOne(filter, query);
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} else {
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//this is a new thread so just set the bump date
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data.bumped = Date.now();
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}
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//get the postId and add it to the post
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const postId = await Boards.getNextId(board._id);
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data.postId = postId;
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//insert the post itself
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const postMongoId = await db.insertOne(data).then(result => result.insertedId); //_id of post
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//add backlinks to the posts this post quotes
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if (data.thread && data.quotes.length > 0) {
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await db.updateMany({
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'_id': {
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'$in': data.quotes.map(q => q._id)
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}
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}, {
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'$push': {
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'backlinks': { _id: postMongoId, postId: postId }
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}
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});
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}
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return postId;
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},
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getReports: (board) => {
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return db.find({
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'reports.0': {
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'$exists': true
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},
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'board': board
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}, {
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'projection': {
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'salt': 0,
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'password': 0,
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'ip': 0,
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'globalreports': 0,
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}
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}).toArray();
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},
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getGlobalReports: () => {
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return db.find({
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'globalreports.0': {
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'$exists': true
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}
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}, {
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'projection': {
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'salt': 0,
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'password': 0,
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'ip': 0,
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'reports': 0,
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}
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}).toArray();
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},
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deleteOne: (board, options) => {
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return db.deleteOne(options);
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},
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pruneOldThreads: async (board, threadLimit) => {
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//get lowest bumped threads
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const threads = await db.find({
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'thread': null,
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'board': board
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}).sort({
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'sticky': -1,
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'bumped': -1
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}).skip(threadLimit).toArray();
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return threads;
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},
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deleteMany: (ids) => {
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return db.deleteMany({
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'_id': {
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'$in': ids
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}
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});
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},
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deleteAll: (board) => {
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return db.deleteMany();
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},
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exists: async (req, res, next) => {
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const thread = await module.exports.getThread(req.params.board, req.params.id);
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if (!thread) {
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return res.status(404).render('404');
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}
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res.locals.thread = thread; // can acces this in views or next route handlers
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next();
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}
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}
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