candy/ctrlers/board.js

a micro bbs system based on duoshuo.com apis

exports = module.exports = function($models, $Ctrler) {

    var Board = new $Ctrler($models.board),
        Thread = new $Ctrler($models.thread),
        board = $models.board,
        thread = $models.thread

        // create board
        Board.create = function(bzid, baby, cb) {
            var baby = new board(baby);
            baby.bz.push(bzid);
            baby.save(function(err) {
                cb(err, baby);
            });
        }

        // read default board (001)
    Board.readDefault = function(id, callback) {
        if (!id) return board.findOne({}).exec(callback);
        return this.findById(id).exec(callback);
    }

    // read full board
    Board.read = function(id, callback) {
        board.findById(id).populate('threads').populate('bz').exec(callback);
    }

    // list all boards' name
    Board.lsName = function(callback) {
        board.find({}).select('name url').exec(callback);
    }

    // list all boards
    Board.ls = function(callback) {
        board.find({}).populate('bz').populate('threads').exec(callback);
    }

    // fetch board by query
    Board.fetch = function(page, limit, query, callback) {
        board.findOne(query).populate('bz').exec(function(err, target) {
            if (!target) return callback(null, null);
            var q = {}
            q.board = target._id;
            var cursor = Thread.page(page, limit, q);
            return cursor.count.exec(function(err, count) {
                if (err) return callback(err);
                cursor.pager.max = Math.round((count + limit - 1) / limit);
                cursor.query
                    .populate('lz').populate('board')
                    .sort('-pined').sort('-pubdate')
                    .exec(function(err, threads) {
                        var result = {}
                        result.board = target;
                        result.threads = threads;
                        result.page = cursor.pager;
                        return callback(err, result);
                    });
            });
        });
    }

    return Board;

}