fix stock view

app/decorators/tag_decorator.rb

@@ -26,6 +26,15 @@ class TagDecorator < Draper::Decorator
     h.event_tag_path(name: model.name)
   end
 
+  # TODO: module
+  def created_date
+    model.created_at.strftime('%Y-%m-%d')
+  end
+
+  def structured_name
+    [model.ancestors.map(&:name), model.name].flatten.join('/')
+  end
+
   # tagをtree viewで表示する
   def tree_view_node
     html = ''

app/models/post.rb

@@ -80,12 +80,13 @@ class Post < ActiveRecord::Base
     where_list
   end)
 
-  # 最新のPostを取得
   scope :recent, (lambda do |limit = 10|
     order(updated_at: :desc).limit(limit)
   end)
 
   scope :today, -> { where(arel_table[:updated_at].gt 1.day.ago) }
+  scope :this_month, -> { where(arel_table[:updated_at].gt 1.month.ago) }
+  scope :last_month, -> { where(arel_table[:updated_at].gt 2.month.ago).where(arel_table[:updated_at].lt 1.month.ago) }
 
   ######################################################################
   # Class method

app/models/tag.rb

@@ -12,8 +12,6 @@
 #
 
 class Tag < ActiveRecord::Base
-  has_many :post_tags
-  has_many :posts, through: :post_tags
 
   # for tree structure
   has_ancestry
@@ -21,6 +19,15 @@ class Tag < ActiveRecord::Base
   # for versioning
   has_paper_trail
 
+  ######################################################################
+  # Associations
+  ######################################################################
+  has_many :post_tags
+  has_many :posts, through: :post_tags
+
+  ######################################################################
+  # Named scope
+  ######################################################################
   default_scope { order(updated_at: :desc) }
 
   scope :posts_exist, lambda {
@@ -30,13 +37,50 @@ class Tag < ActiveRecord::Base
       .having('posts_count > 0')
   }
 
+  scope :recently_created, (lambda do |limit = 10|
+    order(created_at: :desc).limit(limit)
+  end)
+
+
+  ######################################################################
+  # Class method
+  ######################################################################
   class << self
     # 最近投稿されたTagを取得
     def recent(limit = 10)
       Post.recent(20).map(&:tags).flatten.compact.uniq.take(limit)
     end
+
+    # TODO: cache
+    def monthly_popular(limit = 10)
+      tags_this_month = Hash.new { |h, k| h[k] = 0 } # { <tag.id> => <count> }
+      tags_last_month = Hash.new { |h, k| h[k] = 0 } # { <tag.id> => <count> }
+
+      Post.this_month.each do |post|
+        post.tags.each { |tag| tags_this_month[tag.id] += 1 }
+      end
+
+      Post.last_month.each do |post|
+        post.tags.each { |tag| tags_last_month[tag.id] += 1 }
+      end
+
+      tags_this_month_with_score = {}
+      tags_this_month.each do |tag_id, this_month_count|
+        next if this_month_count <= 3
+        tags_this_month_with_score[tag_id] = this_month_count.to_f / (tags_last_month[tag_id] + 1)
+      end
+
+      sorted = tags_this_month_with_score.sort_by { |k, v| -v }.take(limit).to_h
+
+      Tag.find(sorted.keys).to_a.zip(sorted.values).to_h
+    end
   end
 
+  ######################################################################
+  # Instance method
+  ######################################################################
+
+
   def recent_posts(limit = 30)
     posts.recent(limit)
   end

app/views/flow/show.html.slim

@@ -31,7 +31,7 @@
         h2.panel-title
           i.fa.fa-rss
           |  Flow
-          span.small - 最近投稿された記事
+          span.small  - 最近投稿された記事
 
       ul.list-group.panel-body
         - @posts.each do |post|
@@ -73,4 +73,4 @@
         - Tag.recent(10).each_with_index do |tag, i|
           a.list-group-item data-tag-id=tag.id href=search_path(q: "##{tag.name}")
             = tag.name
-            span.badge.badge-transparent = tag.posts_count
+            span.badge = tag.posts_count

app/views/posts/_large_item.html.slim

@@ -8,16 +8,15 @@
       h4
         a href=post_path(post) = post.title
     .col-xs-3
-      span.label.label-danger.label-date = post.display_specified_date if post.specified_date
-      small.pull-right ##{post.id}
+      span.label.label-date.pull-right = post.display_specified_date if post.specified_date
   .row
     .col-xs-8
       small.text-success.posted-name
         | #{post.author.name} posted 
         abbr.js-time-ago data-time-ago-at=post.updated_at
         |.  
-        - post.tags.each do |tag|
-          a.label.label-tag href=tag.decorate.show_path = tag.name
+        - post.tags.map(&:decorate).each do |tag|
+          a.label.label-tag href=tag.show_path = tag.structured_name
           |  
     .col-xs-4
       small.pull-right

app/views/stock/show.html.slim

 /! view:stock/show
+
 .row
-  .col-md-12
-    .panel.stock-wrapper
+
+  .col-xs-12.col-md-8 role="navigation"
+    .panel.panem-main
       .panel-heading
-        h1
-          |  Stocks
-          small  - 保存・蓄積された記事
-      .panel-body
-        #sidebar role="navigation"
-          #tab-tree.tab-pane
-            - cache('tag-tree', :expires_in => 1.hour) do
-              .list-group
-                = Tag.posts_exist.decorate.tree_view
+        h2.panel-title
+          i.fa.fa-stack-overflow
+          |  Stock
+          span.small  - 保存・蓄積された記事
+
+      .panel-body.list-group
+        #tab-tree
+          = Tag.posts_exist.decorate.tree_view
+
+
+  .col-xs-12.col-md-4
+    .panel
+      .panel-heading
+        h3.panel-title
+          i.fa.fa-star
+          |  今月のホットタグ
+      .panel-body.list-group
+        - Tag.monthly_popular(10).each do |tag, score|
+          a.list-group-item href=search_path(q: "##{tag.name}")
+            = tag.name
+            span.badge #{score.round(2)} pt.
+
+    .panel
+      .panel-heading
+        h3.panel-title
+          i.fa.fa-tags
+          |  最近作成されたタグ
+      .panel-body.list-group
+        - Tag.recently_created(10).each do |tag|
+          a.list-group-item href=search_path(q: "##{tag.name}")
+            = tag.name
+            span.label.pull-right = tag.decorate.created_date