Adding support to categories/tags on articles

pirxpilot · Oct 28, 2010 · 80a1bab · 80a1bab
1 parent cb36f6f
commit 80a1bab
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Showing 3 changed files with 74 additions and 2 deletions.
diff --git a/lib/wheat.js b/lib/wheat.js
@@ -59,6 +59,7 @@ module.exports = function setup(repo) {
   addRoute(/^\/()([a-z0-9_-]+)$/, Renderers.article);
   addRoute(/^\/()(.+\.dot)$/, Renderers.dotFile);
   addRoute(/^\/()(.+\.[a-z]{2,4})$/, Renderers.staticFile);
+	addRoute(/^\/()category\/([a-z0-9_-]+)$/,  Renderers.categoryIndex);
 
 
   return function handle(req, res, next) {

diff --git a/lib/wheat/data.js b/lib/wheat/data.js
@@ -274,6 +274,41 @@ var Data = module.exports = {
     );
   }),
 
+  categories: Git.safe(function articles(version, callback) {
+    Step(
+      function getListOfArticles() {
+        Git.readDir(version, "articles", this);
+      },
+      function readArticles(err, results) {
+        if (err) { callback(err); return; }
+        var group = this.group();
+        results.files.forEach(function onFile(filename) {
+          if (!(/\.markdown$/.test(filename))) {
+            return;
+          }
+          var name = filename.replace(/\.markdown$/, '');
+          Data.article(version, name, group());
+        });
+      },
+      function processCategories(err, articles) {
+        if (err) { callback(err); return; }
+        var categories = articles.reduce(function (start, element) {
+					var articleCategories = element.categories.split(',').map(function(element){ 
+						return element.trim();
+					});
+					articleCategories.forEach(function(category){
+						if(start.indexOf(category) == -1){
+							start = start.concat(category);
+						}
+					});
+					return start;
+        }, []);
+        return categories;
+      },
+      callback
+    )
+  }),
+
   fullArticles: Git.safe(function fullArticles(version, callback) {
     Step(
       function getListOfArticles() {

diff --git a/lib/wheat/renderers.js b/lib/wheat/renderers.js
@@ -106,12 +106,14 @@ var Renderers = module.exports = {
         if (err) { callback(err); return; }
         Data.articles(version, this.parallel());
         Git.readFile(head, "description.markdown", this.parallel());
+				Data.categories(version, this.parallel());
       },
-      function applyTemplate(err, articles, description) {
+      function applyTemplate(err, articles, description, categories) {
         if (err) { callback(err); return; }
         Tools.render("index", {
           articles: articles,
-          description: description
+          description: description,
+					categories: categories
         }, this);
       },
       function callPostProcess(err, buffer) {
@@ -191,6 +193,40 @@ var Renderers = module.exports = {
     );
   }),
 
+  categoryIndex: Git.safe(function index(version, category, callback) {
+    Step(
+      function getHead() {
+        Git.getHead(this);
+      },
+      function loadData(err, head) {
+        if (err) { callback(err); return; }
+        Data.articles(version, this.parallel());
+        Git.readFile(head, "description.markdown", this.parallel());
+				Data.categories(version, this.parallel());
+      },
+      function applyTemplate(err, articles, description, categories) {
+        if (err) { callback(err); return; }
+
+				var articlesForCategory = articles.reduce(function (start, element){
+					return element.categories.indexOf(category) >= 0 ? start.concat(element) : start;
+				}, []);
+
+        Tools.render("index", {
+          articles: articlesForCategory,
+          description: description,
+					categories: categories
+        }, this);
+      },
+      function callPostProcess(err, buffer) {
+        if (err) { callback(err); return; }
+        postProcess({
+          "Cache-Control": "public, max-age=3600"
+        }, buffer, version, "index", this);
+      },
+      callback
+    );
+  }),
+
   staticFile: Git.safe(function staticFile(version, path, callback) {
     Step(
       function loadPublicFiles() {