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change the way group member posts are stored

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Barış Soner Uşaklı
2017-05-04 16:32:51 -04:00
parent 670a5d9ca0
commit 14f3907aa4
6 changed files with 100 additions and 11 deletions
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61
src/groups/posts.js
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@@ -7,21 +7,62 @@ var privileges = require('../privileges');
var posts = require('../posts');
module.exports = function (Groups) {
Groups.onNewPostMade = function (postData, callback) {
if (!parseInt(postData.uid, 10)) {
return setImmediate(callback);
}
var groupNames;
async.waterfall([
function (next) {
Groups.getUserGroupMembership('groups:visible:createtime', [postData.uid], next);
},
function (_groupNames, next) {
groupNames = _groupNames[0];
var keys = groupNames.map(function (groupName) {
return 'group:' + groupName + ':member:pids';
});
db.sortedSetsAdd(keys, postData.timestamp, postData.pid, next);
},
function (next) {
async.each(groupNames, function (groupName, next) {
truncateMemberPosts(groupName, next);
}, next);
},
], callback);
};
function truncateMemberPosts(groupName, callback) {
async.waterfall([
function (next) {
db.getSortedSetRevRange('group:' + groupName + ':member:pids', 10, 10, next);
},
function (lastPid, next) {
lastPid = lastPid[0];
if (!parseInt(lastPid, 10)) {
return callback();
}
db.sortedSetScore('group:' + groupName + ':member:pids', lastPid, next);
},
function (score, next) {
db.sortedSetsRemoveRangeByScore(['group:' + groupName + ':member:pids'], '-inf', score, next);
},
], callback);
}
Groups.getLatestMemberPosts = function (groupName, max, uid, callback) {
async.waterfall([
function (next) {
Groups.getMembers(groupName, 0, 100, next);
},
function (uids, next) {
if (!Array.isArray(uids) || !uids.length) {
return callback(null, []);
}
var keys = uids.map(function (uid) {
return 'uid:' + uid + ':posts';
});
db.getSortedSetRevRange(keys, 0, max - 1, next);
db.getSortedSetRevRange('group:' + groupName + ':member:pids', 0, max - 1, next);
},
function (pids, next) {
if (!Array.isArray(pids) || !pids.length) {
return callback(null, []);
}
privileges.posts.filter('read', pids, uid, next);
},
function (pids, next) {