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55 lines
1.2 KiB
JavaScript
55 lines
1.2 KiB
JavaScript
'use strict';
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var async = require('async');
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var db = require('../database');
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module.exports = function (Categories) {
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Categories.markAsRead = function (cids, uid, callback) {
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callback = callback || function () {};
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if (!Array.isArray(cids) || !cids.length) {
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return callback();
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}
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var keys = cids.map(function (cid) {
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return 'cid:' + cid + ':read_by_uid';
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});
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async.waterfall([
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function (next) {
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db.isMemberOfSets(keys, uid, next);
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},
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function (hasRead, next) {
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keys = keys.filter(function (key, index) {
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return !hasRead[index];
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});
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if (!keys.length) {
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return callback();
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}
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db.setsAdd(keys, uid, next);
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},
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], callback);
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};
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Categories.markAsUnreadForAll = function (cid, callback) {
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if (!parseInt(cid, 10)) {
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return callback();
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}
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callback = callback || function () {};
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db.delete('cid:' + cid + ':read_by_uid', callback);
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};
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Categories.hasReadCategories = function (cids, uid, callback) {
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var sets = cids.map(function (cid) {
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return 'cid:' + cid + ':read_by_uid';
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});
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db.isMemberOfSets(sets, uid, callback);
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};
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Categories.hasReadCategory = function (cid, uid, callback) {
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db.isSetMember('cid:' + cid + ':read_by_uid', uid, callback);
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};
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};
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