A test of complex keys for listing blog posts...keeping for reference

map.js

function(doc) {
  // TODO: can we put this someplace "global"?                   
  var max_posts = 10;
        if (doc.type == 'page') {
                var urlParts = doc.url.split('/');
                for (var i in doc.page_items) {
                        for (var n in doc.page_items[i]) {
                          if (doc.page_items[i][n].posts != undefined) {
                            var post_count = 0;
                            for (var post in doc.page_items[i][n].posts) {
                              if (post_count == max_posts) break;
                              emit([urlParts, i, n, doc.page_items[i][n].posts[post].published_date], doc.page_items[i][n].posts[post]);
                              post_count++;
                            }
                          } else {
                                emit([urlParts, i, n], doc.page_items[i][n]);
                          }
                        }
                }
                emit([urlParts, '_', '_'], {'_id': doc._id});
                if (doc.template) {
                        emit([urlParts, '', 'template'], {'_id':doc.template});
                }
                emit([urlParts, '', 'site'], {'_id':'site'});
                emit([urlParts, '', 'sitemap'], {'_id':'sitemap'});
        }
}