artists/show: refactor post previews.

app/controllers/artists_controller.rb

@@ -44,7 +44,6 @@ class ArtistsController < ApplicationController
 
   def show
     @current_item = @artist = Artist.find(params[:id])
-    @post_set = PostSets::Artist.new(@artist)
     respond_with(@artist)
   end
 
@@ -80,7 +79,6 @@ class ArtistsController < ApplicationController
       redirect_to artist_path(@artist)
     else
       @artist = Artist.new(name: params[:name])
-      @post_set = PostSets::Artist.new(@artist)
       respond_with(@artist)
     end
   end

app/logical/post_sets/artist.rb

@@ -1,24 +0,0 @@
-module PostSets
-  class Artist < PostSets::Post
-    attr_reader :artist
-
-    def initialize(artist)
-      super(artist.name)
-      @artist = artist
-    end
-
-    def posts
-      @posts ||= begin
-        query = ::Post.tag_match(@artist.name).where("true /* PostSets::Artist#posts */").limit(10)
-        query.each # hack to force rails to eager load
-        query
-      end
-    rescue ::Post::SearchError
-      ::Post.none
-    end
-
-    def presenter
-      ::PostSetPresenters::Post.new(self)
-    end
-  end
-end

app/views/artists/_show.html.erb

@@ -12,15 +12,17 @@
 
     <%= yield %>
 
-    <div class="recent-posts">
-      <h2>Recent Posts</h2>
+    <% if @artist.tag.present? && @artist.tag.post_count > 0 %>
+      <div class="recent-posts">
+        <h2>Recent Posts <%= link_to "»", posts_path(tags: @artist.name) %></h2>
 
-      <%= render "posts/partials/common/inline_blacklist" %>
+        <%= render "posts/partials/common/inline_blacklist" %>
 
-      <div>
-        <%= @post_set.presenter.post_previews_html(self) %>
+        <div>
+          <%= post_previews_html(@artist.tag.posts.limit(8), tags: @artist.name) %>
+        </div>
       </div>
-    </div>
+    <% end %>
   </div>
 </div>