You cannot select more than 25 topics Topics must start with a letter or number, can include dashes ('-') and can be up to 35 characters long.

82 lines
2.5 KiB
JavaScript

'use strict';
var async = require('async');
var db = require('../database');
var batch = require('../batch');
var plugins = require('../plugins');
var topics = require('../topics');
var groups = require('../groups');
var privileges = require('../privileges');
var cache = require('../cache');
module.exports = function (Categories) {
Categories.purge = async function (cid, uid) {
await batch.processSortedSet('cid:' + cid + ':tids', async function (tids) {
await async.eachLimit(tids, 10, async function (tid) {
await topics.purgePostsAndTopic(tid, uid);
});
}, { alwaysStartAt: 0 });
const pinnedTids = await db.getSortedSetRevRange('cid:' + cid + ':tids:pinned', 0, -1);
await async.eachLimit(pinnedTids, 10, async function (tid) {
await topics.purgePostsAndTopic(tid, uid);
});
await purgeCategory(cid);
plugins.hooks.fire('action:category.delete', { cid: cid, uid: uid });
};
async function purgeCategory(cid) {
await db.sortedSetRemove('categories:cid', cid);
await removeFromParent(cid);
await deleteTags(cid);
await db.deleteAll([
'cid:' + cid + ':tids',
'cid:' + cid + ':tids:pinned',
'cid:' + cid + ':tids:posts',
'cid:' + cid + ':tids:votes',
'cid:' + cid + ':tids:lastposttime',
'cid:' + cid + ':recent_tids',
'cid:' + cid + ':pids',
'cid:' + cid + ':read_by_uid',
'cid:' + cid + ':uid:watch:state',
'cid:' + cid + ':children',
'cid:' + cid + ':tag:whitelist',
'category:' + cid,
]);
await groups.destroy(privileges.privilegeList.map(privilege => 'cid:' + cid + ':privileges:' + privilege));
}
async function removeFromParent(cid) {
const [parentCid, children] = await Promise.all([
Categories.getCategoryField(cid, 'parentCid'),
db.getSortedSetRange('cid:' + cid + ':children', 0, -1),
]);
const bulkAdd = [];
const childrenKeys = children.map(function (cid) {
bulkAdd.push(['cid:0:children', cid, cid]);
return 'category:' + cid;
});
await Promise.all([
db.sortedSetRemove('cid:' + parentCid + ':children', cid),
db.setObjectField(childrenKeys, 'parentCid', 0),
db.sortedSetAddBulk(bulkAdd),
]);
cache.del([
'categories:cid',
'cid:0:children',
'cid:' + parentCid + ':children',
'cid:' + cid + ':children',
'cid:' + cid + ':tag:whitelist',
]);
}
async function deleteTags(cid) {
const tags = await db.getSortedSetMembers('cid:' + cid + ':tags');
await db.deleteAll(tags.map(tag => 'cid:' + cid + ':tag:' + tag + ':topics'));
await db.delete('cid:' + cid + ':tags');
}
};