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server-side voting logic

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psychobunny
2014-02-06 12:45:13 -05:00
parent cf3f72feb9
commit ef1fdbed71
1 changed files with 144 additions and 3 deletions
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147
src/favourites.js
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@@ -8,11 +8,152 @@ var async = require('async'),
(function (Favourites) {
"use strict";
function vote(type, postData, pid, room_id, uid, socket) {
var websockets = require('./socket.io');
if (uid === 0) {
return socket.emit('event:alert', {
alert_id: 'post_vote',
title: '[[vote.not_logged_in.title]]',
message: '[[vote.not_logged_in.message]]',
type: 'danger',
timeout: 5000
});
} else if (uid === postData.uid) {
return socket.emit('event:alert', {
alert_id: 'post_vote',
title: '[[vote.cant_vote_self.title]]',
message: '[[vote.cant_vote_self.message]]',
type: 'danger',
timeout: 5000
});
}
//Favourites.hasVoted(type, pid, uid, function (err, hasVoted) {
// if (!hasVoted) {
var notType = (type === 'upvote' ? 'downvote' : 'upvote');
db[type === 'upvote' ? 'sortedSetAdd' : 'sortedSetRemove']('uid:' + uid + ':upvote', postData.timestamp, pid);
db[type === 'upvote' ? 'sortedSetRemove' : 'sortedSetAdd']('uid:' + uid + ':downvote', postData.timestamp, pid);
user[type === 'upvote' ? 'incrementUserFieldBy' : 'decrementUserFieldBy'](postData.uid, 'reputation', 1, function (err, newreputation) {
db.sortedSetAdd('users:reputation', newreputation, postData.uid);
});
db.setAdd('pid:' + pid + ':' + type, uid, function(err) {
db.setCount('pid:' + pid + ':' + type, function(err, count) {
console.log(count);
posts.setPostField(pid, type, count);
});
});
db.setRemove('pid:' + pid + ':' + notType, uid, function(err) {
db.setCount('pid:' + pid + ':' + notType, function(err, count) {
posts.setPostField(pid, notType, count);
});
});
if (room_id) {
websockets.in(room_id).emit('event:' + (type === 'upvote' ? 'rep_up' : 'rep_down'), {
uid: postData.uid,
pid: pid
});
}
socket.emit('posts.' + type, {
pid: pid
});
// }
//});
}
Favourites.upvote = function(pid, room_id, uid, socket) {
Favourites.unvote(pid, room_id, uid, socket, function(postData) {
vote('upvote', postData, pid, room_id, uid, socket);
});
};
Favourites.downvote = function(pid, room_id, uid, socket) {
Favourites.unvote(pid, room_id, uid, socket, function(postData) {
vote('downvote', postData, pid, room_id, uid, socket);
});
};
Favourites.unvote = function(pid, room_id, uid, socket, callback) {
var websockets = require('./socket.io');
async.parallel({
upvoted: function(each) {
db.isSetMember('pid:' + pid + ':upvote', uid, each);
},
downvoted: function(each) {
db.isSetMember('pid:' + pid + ':downvote', uid, each);
}
}, function(err, results) {
posts.getPostFields(pid, ['uid', 'timestamp'], function (err, postData) {
if (results.upvoted) {
db.sortedSetRemove('uid:' + uid + ':upvote');
db.setRemove('pid:' + pid + ':upvote', uid, function(err) {
db.setCount('pid:' + pid + ':upvote', function(err, count) {
posts.setPostField(pid, 'upvote', count);
});
});
user.decrementUserFieldBy(postData.uid, 'reputation', 1, function (err, newreputation) {
db.sortedSetAdd('users:reputation', newreputation, postData.uid);
});
if (room_id) {
websockets.in(room_id).emit('event:rep_down', {
uid: postData.uid,
pid: pid
});
}
} else if (results.downvoted) {
db.sortedSetRemove('uid:' + uid + ':downvote');
db.setRemove('pid:' + pid + ':downvote', uid, function(err) {
db.setCount('pid:' + pid + ':downvote', function(err, count) {
posts.setPostField(pid, 'downvote', count);
});
});
user.incrementUserFieldBy(postData.uid, 'reputation', 1, function (err, newreputation) {
db.sortedSetAdd('users:reputation', newreputation, postData.uid);
});
if (room_id) {
websockets.in(room_id).emit('event:rep_up', {
uid: postData.uid,
pid: pid
});
}
}
if (results.upvoted || results.downvoted) {
socket.emit('posts.unvote', {
pid: pid
});
}
if (callback) {
callback(postData);
}
});
});
};
Favourites.hasVoted = function(type, pid, uid, callback) {
db.isSetMember('pid:' + pid + ':' + type, uid, callback);
};
Favourites.favourite = function (pid, room_id, uid, socket) {
var websockets = require('./socket.io');
if (uid === 0) {
translator.mget(['topic:favourites.not_logged_in.message', 'topic:favourites.not_logged_in.title'], function(err, results) {
socket.emit('event:alert', {
alert_id: 'post_favourite',
@@ -46,7 +187,7 @@ var async = require('async'),
}
if (room_id) {
websockets.in(room_id).emit('event:rep_up', {
websockets.in(room_id).emit('event:favourited', {
uid: uid !== postData.uid ? postData.uid : 0,
pid: pid
});
@@ -86,7 +227,7 @@ var async = require('async'),
}
if (room_id) {
websockets.in(room_id).emit('event:rep_down', {
websockets.in(room_id).emit('event:unfavourited', {
uid: uid !== uid_of_poster ? uid_of_poster : 0,
pid: pid
});