new action for intro page for new users

app/assets/stylesheets/specific/explore.css.scss

@@ -0,0 +1,15 @@
+div#c-explore-posts {
+  header {
+    text-align: center;
+
+    h1 {
+      font-size: 3em;
+    }
+  }
+
+  div.posts {
+    padding: 1em;
+    margin-bottom: 2em;
+    background: #EEF;
+  }
+}

app/controllers/explore/posts_controller.rb

@@ -7,5 +7,10 @@ module Explore
       @posts = @post_set.posts
       respond_with(@posts)
     end
+
+    def intro
+      @presenter = IntroPresenter.new
+      render :layout => "blank"
+    end
   end
 end

app/presenters/intro_presenter.rb

@@ -0,0 +1,11 @@
+class IntroPresenter
+  def popular_tags
+    Tag.order("post_count desc").limit(8).map(&:name)
+  end
+
+  def each
+    popular_tags.each do |tag|
+      yield(tag, PostSets::Post.new(tag, 1, 6))
+    end
+  end
+end

app/views/explore/posts/intro.html.erb

@@ -0,0 +1,21 @@
+<div id="c-explore-posts">
+  <div id="a-intro">
+    <header>
+      <h1>Danbooru</h1>
+      <p class="byline">Find good anime art fast</p>
+
+      <%= form_tag(posts_path, :method => :get) do %>
+        <%= text_field_tag "tags", "", :size => 50 %>
+        <%= submit_tag "Search" %>
+      <% end %>
+    </header>
+
+    <% @presenter.each do |tag, post_set| %>
+      <div class="posts">
+        <h2><%= link_to tag, posts_path(:tags => tag) %></h2>
+        <%= post_set.presenter.post_previews_html(self) %>
+        <div class="clearfix"></div>
+      </div>
+    <% end %>
+  </div>
+</div> 

config/routes.rb

@@ -40,6 +40,7 @@ Danbooru::Application.routes.draw do
       collection do
         get :popular
         get :hot
+        get :intro
       end
     end
   end