add server option for views, which serializes as an empty template for the browser

note that this is in addition to the existing `serverOnly` option,
which does not serialize the view at all, so it cannot be used from
other views on the browser

Author: nateps

lib/templates.js

@@ -381,13 +381,23 @@ Views.prototype.serialize = function(options) {
   var out = 'function(derbyTemplates, views) {' +
     'var expressions = derbyTemplates.expressions;' +
     'var templates = derbyTemplates.templates;';
+  var forServer = options && options.server;
+  var minify = options && options.minify;
   for (var name in this.nameMap) {
     var view = this.nameMap[name];
-    if (options && !options.server && view.options && view.options.serverOnly) continue;
     var template = view.template || view.parse();
+    if (!forServer && view.options) {
+      // Do not serialize views with the `serverOnly` option, except when
+      // serializing for a server script
+      if (view.options.serverOnly) continue;
+      // For views with the `server` option, serialize them with a blank
+      // template body. This allows them to be used from other views on the
+      // browser, but they will output nothing on the browser
+      if (view.options.server) template = exports.emptyTemplate;
+    }
     out += 'views.register(' + serializeObject.args([
       view.name
-    , (options && options.minify) ? null : view.source
+    , (minify) ? null : view.source
     , (hasKeys(view.options)) ? view.options : null
     ]) + ').parse = function() {return this.template = ' + template.serialize() + '};';
   }