add limit to index page, for performance improvements

cmd/frontend/Index.go

@@ -6,25 +6,26 @@ import (
 	"net/http"
 )
 
-// List the latest articles using the base template. 
+// List the latest articles using the base template.
 func (app *App) Index(w http.ResponseWriter, req *http.Request) {
-    // get articles
-    articles, err := app.articles.All()
-    if err != nil { http.Error(w, err.Error(), http.StatusInternalServerError); return; }
+	// get articles
+	articles, err := app.articles.All(10)
+	if err != nil {
+		http.Error(w, err.Error(), http.StatusInternalServerError)
+		return
+	}
 
-    // truncate
-    if len(articles) > 10 {
-        articles = articles[:10]
-    }
+	// convert to viewmodel
+	articleVMs := make([]*model.ArticleViewModel, 0, len(articles))
+	for _, a := range articles {
+		articleVMs = append(articleVMs, a.ViewModel())
+	}
 
-    // convert to viewmodel
-    articleVMs := make([]*model.ArticleViewModel, 0, len(articles))
-    for _, a := range articles {
-        articleVMs = append(articleVMs, a.ViewModel())
-    }
-
-    // render template
-    t := template.Must(template.ParseFiles("assets/templates/article.html", "assets/templates/layout.html"))
-    err = t.ExecuteTemplate(w, "base", articleVMs)
-    if err != nil { http.Error(w, "Failed to render template", http.StatusInternalServerError); return; }
+	// render template
+	t := template.Must(template.ParseFiles("assets/templates/article.html", "assets/templates/layout.html"))
+	err = t.ExecuteTemplate(w, "base", articleVMs)
+	if err != nil {
+		http.Error(w, "Failed to render template", http.StatusInternalServerError)
+		return
+	}
 }