almost rebased

chapter25/22_load_article_middleware.js

@@ -0,0 +1,18 @@
+var Article = require('../../data/models/article');
+
+function loadArticle(req, res, next) {
+  Article.findOne({title: req.params.title})
+    .populate('author')
+    .exec(function(err, article) {
+      if (err) {
+        return next(err);
+      }
+      if (! article) {
+        return res.send('Not found', 404);
+      }
+      req.article = article;
+      next();
+    });
+}
+
+module.exports = loadArticle;