candy/routes/page.js

a micro bbs system based on duoshuo.com apis

var perpage = 20;

var isPage = function(p) {
    if (!p) return false;
    var n = parseInt(p);
    if (isNaN(n)) return false;
    return n;
}

// GET     /page/:page       ->  show
exports = module.exports = function(ctrlers, theme) {

    var board = ctrlers.board,
        thread = ctrlers.thread;

    return {
        // PAGE: show selected page
        show: function(req, res, next) {
            var alias = req.params.board;
            var page = isPage(req.params.page) || 1;
            if (alias) {
                // pager of board
                var query = {}
                query.url = alias;
                board.fetch(page, perpage, query, function(err, result) {
                    if (err) return next(err);
                    if (!result) return next(new Error('404'));
                    if (result.page.max > 1 && result.threads.length === 0) return next(new Error('404'));
                    theme.render('flat/board/index', result, function(err, html) {
                        if (err) return next(err);
                        return res.send(html);
                    });
                });
            } else {
                // pager of thread
                thread.fetch(page, perpage, {}, function(err, threads, pager) {
                    if (err) return next(err);
                    if (!threads) return next(new Error('404'));
                    if (pager.max > 1 && threads.length === 0) return next(new Error('404'));
                    theme.render('flat/index', {
                        threads: threads,
                        page: pager
                    }, function(err, html) {
                        if (err) return next(err);
                        return res.send(html);
                    });
                });
            }
        }
    }

}