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.
nodebb/src/categories.js

415 lines
10 KiB
JavaScript

'use strict';
var db = require('./database'),
posts = require('./posts'),
utils = require('./../public/src/utils'),
user = require('./user'),
Groups = require('./groups'),
topics = require('./topics'),
plugins = require('./plugins'),
meta = require('./meta'),
emitter = require('./emitter'),
validator = require('validator'),
privileges = require('./privileges'),
async = require('async'),
winston = require('winston'),
nconf = require('nconf');
(function(Categories) {
require('./categories/delete')(Categories);
require('./categories/activeusers')(Categories);
require('./categories/recentreplies')(Categories);
require('./categories/update')(Categories);
Categories.create = function(data, callback) {
db.incrObjectField('global', 'nextCid', function(err, cid) {
if (err) {
return callback(err);
}
var slug = cid + '/' + utils.slugify(data.name);
var category = {
cid: cid,
name: data.name,
description: data.description,
icon: data.icon,
bgColor: data.bgColor,
color: data.color,
slug: slug,
topic_count: 0,
post_count: 0,
disabled: 0,
order: data.order,
link: '',
numRecentReplies: 2,
class: 'col-md-3 col-xs-6',
imageClass: 'auto'
};
db.setObject('category:' + cid, category, function(err) {
if(err) {
return callback(err);
}
db.sortedSetAdd('categories:cid', data.order, cid);
callback(null, category);
});
});
};
Categories.exists = function(cid, callback) {
db.isSortedSetMember('categories:cid', cid, callback);
};
Categories.getCategoryById = function(cid, start, end, uid, callback) {
Categories.getCategories([cid], uid, function(err, categories) {
if (err || !Array.isArray(categories) || !categories[0]) {
return callback(err || new Error('[[error:invalid-cid]]'));
}
var category = categories[0];
if (parseInt(uid, 10)) {
Categories.markAsRead(cid, uid);
}
async.parallel({
topics: function(next) {
Categories.getCategoryTopics(cid, start, end, uid, next);
},
pageCount: function(next) {
Categories.getPageCount(cid, uid, next);
}
}, function(err, results) {
if(err) {
return callback(err);
}
category.topics = results.topics.topics;
category.nextStart = results.topics.nextStart;
category.pageCount = results.pageCount;
category.topic_row_size = 'col-md-9';
plugins.fireHook('filter:category.get', category, uid, callback);
});
});
};
Categories.getCategoryTopics = function(cid, start, stop, uid, callback) {
var tids;
async.waterfall([
function(next) {
Categories.getTopicIds(cid, start, stop, next);
},
function(topicIds, next) {
tids = topicIds;
topics.getTopicsByTids(tids, uid, next);
},
function(topics, next) {
if (!topics || !topics.length) {
return next(null, {
topics: [],
nextStart: 1
});
}
var indices = {},
i = 0;
for(i=0; i<tids.length; ++i) {
indices[tids[i]] = start + i;
}
for(i=0; i<topics.length; ++i) {
topics[i].index = indices[topics[i].tid];
}
db.sortedSetRevRank('categories:' + cid + ':tid', topics[topics.length - 1].tid, function(err, rank) {
if(err) {
return next(err);
}
next(null, {
topics: topics,
nextStart: parseInt(rank, 10) + 1
});
});
}
], callback);
};
Categories.getTopicIds = function(cid, start, stop, callback) {
db.getSortedSetRevRange('categories:' + cid + ':tid', start, stop, callback);
};
Categories.getTopicIndex = function(tid, callback) {
topics.getTopicField(tid, 'cid', function(err, cid) {
if(err) {
return callback(err);
}
db.sortedSetRevRank('categories:' + cid + ':tid', tid, callback);
});
};
Categories.getPageCount = function(cid, uid, callback) {
db.sortedSetCard('categories:' + cid + ':tid', function(err, topicCount) {
if(err) {
return callback(err);
}
if (parseInt(topicCount, 10) === 0) {
return callback(null, 1);
}
user.getSettings(uid, function(err, settings) {
if(err) {
return callback(err);
}
callback(null, Math.ceil(parseInt(topicCount, 10) / settings.topicsPerPage));
});
});
};
Categories.getAllCategories = function(uid, callback) {
db.getSortedSetRange('categories:cid', 0, -1, function(err, cids) {
if (err) {
return callback(err);
}
if (!Array.isArray(cids) || !cids.length) {
return callback(null, []);
}
Categories.getCategories(cids, uid, callback);
});
};
Categories.getCategoriesByPrivilege = function(uid, privilege, callback) {
db.getSortedSetRange('categories:cid', 0, -1, function(err, cids) {
if (err) {
return callback(err);
}
if (!Array.isArray(cids) || !cids.length) {
return callback(null, []);
}
privileges.categories.filter(privilege, cids, uid, function(err, cids) {
if (err) {
return callback(err);
}
Categories.getCategories(cids, uid, function(err, categories) {
if (err) {
return callback(err);
}
categories = categories.filter(function(category) {
return !category.disabled;
});
callback(null, categories);
});
});
});
};
Categories.getModerators = function(cid, callback) {
Groups.get('cid:' + cid + ':privileges:mods', {}, function(err, groupObj) {
if (err) {
return callback(err);
}
if (!Array.isArray(groupObj) || !groupObj.members.length) {
return callback(null, []);
}
user.getMultipleUserFields(groupObj.members, ['uid', 'username', 'userslug', 'picture'], callback);
});
};
Categories.markAsRead = function(cid, uid, callback) {
db.setAdd('cid:' + cid + ':read_by_uid', uid, callback);
};
Categories.markAsUnreadForAll = function(cid, callback) {
callback = callback || function() {};
db.delete('cid:' + cid + ':read_by_uid', function(err) {
callback(err);
});
};
Categories.hasReadCategories = function(cids, uid, callback) {
var sets = [];
for (var i = 0, ii = cids.length; i < ii; i++) {
sets.push('cid:' + cids[i] + ':read_by_uid');
}
db.isMemberOfSets(sets, uid, callback);
};
Categories.hasReadCategory = function(cid, uid, callback) {
db.isSetMember('cid:' + cid + ':read_by_uid', uid, callback);
};
Categories.getCategoryData = function(cid, callback) {
Categories.getCategoriesData([cid], function(err, categories) {
callback(err, categories ? categories[0] : null);
});
};
Categories.getCategoriesData = function(cids, callback) {
var keys = cids.map(function(cid) {
return 'category:' + cid;
});
db.getObjects(keys, function(err, categories) {
if (err) {
return callback(err);
}
if (!Array.isArray(categories) || !categories.length) {
return callback(null, []);
}
async.map(categories, function(category, next) {
if (!category) {
return next(null, category);
}
category.name = validator.escape(category.name);
category.description = validator.escape(category.description);
category.backgroundImage = category.image ? nconf.get('relative_path') + category.image : '';
category.disabled = category.disabled ? parseInt(category.disabled, 10) !== 0 : false;
next(null, category);
}, callback);
});
};
Categories.getCategoryField = function(cid, field, callback) {
db.getObjectField('category:' + cid, field, callback);
};
Categories.getMultipleCategoryFields = function(cids, fields, callback) {
var keys = cids.map(function(cid) {
return 'category:' + cid;
});
db.getObjectsFields(keys, fields, callback);
};
Categories.getCategoryFields = function(cid, fields, callback) {
db.getObjectFields('category:' + cid, fields, callback);
};
Categories.setCategoryField = function(cid, field, value, callback) {
db.setObjectField('category:' + cid, field, value, callback);
};
Categories.incrementCategoryFieldBy = function(cid, field, value, callback) {
db.incrObjectFieldBy('category:' + cid, field, value, callback);
};
Categories.getCategories = function(cids, uid, callback) {
if (!Array.isArray(cids)) {
return callback(new Error('[[error:invalid-cid]]'));
}
if (!cids.length) {
return callback(null, []);
}
async.parallel({
categories: function(next) {
Categories.getCategoriesData(cids, next);
},
children: function(next) {
Categories.getChildren(cids, uid, next);
},
parents: function(next) {
Categories.getParents(cids, next);
},
hasRead: function(next) {
Categories.hasReadCategories(cids, uid, next);
}
}, function(err, results) {
if (err) {
return callback(err);
}
var categories = results.categories;
var hasRead = results.hasRead;
uid = parseInt(uid, 10);
for(var i=0; i<results.categories.length; ++i) {
categories[i]['unread-class'] = (parseInt(categories[i].topic_count, 10) === 0 || (hasRead[i] && uid !== 0)) ? '' : 'unread';
categories[i].children = results.children[i];
categories[i].parent = results.parents[i];
}
callback(null, categories);
});
};
Categories.getParents = function(cids, callback) {
var keys = cids.map(function(cid) {
return 'category:' + cid;
});
db.getObjectsFields(keys, ['parentCid'], function(err, data) {
if (err) {
return callback(err);
}
var parentCids = data.map(function(category) {
return category && category.parentCid;
});
Categories.getCategoriesData(parentCids, callback);
});
};
Categories.getChildren = function(cids, uid, callback) {
async.waterfall([
async.apply(db.getSortedSetRange, 'categories:cid', 0, -1),
function(cids, next) {
privileges.categories.filter('find', cids, uid, next);
},
function (cids, next) {
Categories.getCategoriesData(cids, next);
},
function (categories, next) {
async.map(cids, function(cid, next) {
next(null, categories.filter(function(category) {
return parseInt(category.parentCid, 10) === parseInt(cid, 10);
}));
}, next);
}
], callback);
};
Categories.onNewPostMade = function(postData) {
topics.getTopicFields(postData.tid, ['cid', 'pinned'], function(err, topicData) {
if (err) {
winston.error(err.message);
}
var cid = topicData.cid;
db.sortedSetAdd('categories:recent_posts:cid:' + cid, postData.timestamp, postData.pid);
db.incrObjectField('category:' + cid, 'post_count');
if(parseInt(topicData.pinned, 10) === 0) {
db.sortedSetAdd('categories:' + cid + ':tid', postData.timestamp, postData.tid);
}
});
};
emitter.on('event:newpost', Categories.onNewPostMade);
}(exports));