4 files changed, 56 insertions, 0 deletions

@@ -355,3 +355,40 @@
     margin-left: 1em;
   }
 }
+
+#tag-cloud {
+  width: 75%;
+  margin: 0 auto;
+  text-align: center;
+
+  a {
+    display: inline-block;
+    margin-right: 0.5em;
+    text-decoration: none;
+
+    &:hover {
+      text-decoration: underline;
+    }
+
+    &:visited {
+      color: blue;
+    }
+  }
+
+  .xs {
+    font-size: 0.75em;
+  }
+
+  .m {
+    font-size: 2em;
+  }
+
+  .l {
+    font-size: 3em;
+  }
+
+  .xl {
+    font-size: 3em;
+    font-weight: bold;
+  }
+}
@@ -1,5 +1,9 @@
 class TagsController < ApplicationController
 
+  def index
+    @tags = Blog.tag_counts
+  end
+
   def show
     @tag_name = params[:name]
     @blogs = Blog.tagged_with(params[:name]).where(published: true).order(published_at: :desc).paginate(page: params[:page], per_page: 10)
@@ -0,0 +1,11 @@
+module TagsHelper
+
+  def tag_cloud(tags, classes)
+    max = tags.sort_by(&:taggings_count).last
+    tags.each do |tag|
+      index = tag.taggings_count.to_f / max.taggings_count * (classes.size - 1)
+      yield(tag, classes[index.round])
+    end
+  end
+
+end
@@ -0,0 +1,4 @@
+%h2.centered Tag cloud
+#tag-cloud
+  - tag_cloud @tags, %w[xs s m l xl] do |tag, css_class|
+    = link_to tag.name, tag_url(tag.name), class: css_class, title: tag.taggings_count