diff --git a/app/controllers/libraries_controller.rb b/app/controllers/libraries_controller.rb
index 55894aaa6..c7c6029da 100644
--- a/app/controllers/libraries_controller.rb
+++ b/app/controllers/libraries_controller.rb
@@ -22,7 +22,7 @@ class LibrariesController < ApplicationController
     end
 
     @count = libraries.count
-    @libraries = paginate libraries.includes(:library_tags, :praise_tread_cache, user: :user_extension)
+    @libraries = paginate libraries.includes(:library_tags, user: :user_extension)
 
     ids = @libraries.map(&:id)
     @download_count_map = Attachment.where(container_type: 'Library', container_id: ids)
diff --git a/app/controllers/memos_controller.rb b/app/controllers/memos_controller.rb
index d950fe1c8..0475eb0da 100644
--- a/app/controllers/memos_controller.rb
+++ b/app/controllers/memos_controller.rb
@@ -85,7 +85,7 @@ class MemosController < ApplicationController
         params[:tags].each do |tag|
           MemoTagRepertoire.create!(memo_id: @memo.id, tag_repertoire_id: tag)
         end
-        normal_status("帖子创建成功")
+        render :json => {memo_id: @memo.id, status: 0, message: "帖子创建成功"}
       rescue Exception => e
         tip_exception("帖子创建失败，原因：#{e}")
         raise ActiveRecord::Rollback
diff --git a/app/models/library.rb b/app/models/library.rb
index 894dcdac0..13a5c3243 100644
--- a/app/models/library.rb
+++ b/app/models/library.rb
@@ -10,6 +10,8 @@ class Library < ApplicationRecord
 
   has_many :attachments, as: :container
   has_one :praise_tread_cache, foreign_key: :object_id
+  has_many :praise_treads, as: :praise_tread_object, dependent: :destroy
+
 
   validates :uuid, presence: true, uniqueness: true
 
diff --git a/app/views/games/picture_display.json.jbuilder b/app/views/games/picture_display.json.jbuilder
index 8b5271ec5..2bc88fdf4 100644
--- a/app/views/games/picture_display.json.jbuilder
+++ b/app/views/games/picture_display.json.jbuilder
@@ -26,13 +26,13 @@ elsif @type =="qrcode"
   json.qrcode_str @qrcode_str
 elsif @type == "mp3" || @type == "mp4"
   if @type == "mp4"
-    json.orignal_file [{"file_url": "http://120.27.231.56:48080/attachments/download/378171"}]
-    json.user_file [{"file_url": "http://120.27.231.56:48080/attachments/download/378172"}]
-    json.answer_file [{"file_url": "http://120.27.231.56:48080/attachments/download/378173"}]
+    json.orignal_file [{"file_url": "http://120.27.231.56:48080/attachments/download/378171/123.mp4"}]
+    json.user_file [{"file_url": "http://120.27.231.56:48080/attachments/download/378172/456.mp4"}]
+    json.answer_file [{"file_url": "http://120.27.231.56:48080/attachments/download/378173/789.mp4"}]
   else
-    json.orignal_file [{"file_url": "http://120.27.231.56:48080/attachments/download/378174"}]
-    json.user_file [{"file_url": "http://120.27.231.56:48080/attachments/download/378175"}]
-    json.answer_file [{"file_url": "http://120.27.231.56:48080/attachments/download/378175"}]
+    json.orignal_file [{"file_url": "http://120.27.231.56:48080/attachments/download/378174/58099.mp3"}]
+    json.user_file [{"file_url": "http://120.27.231.56:48080/attachments/download/378175/654058514.mp3"}]
+    json.answer_file [{"file_url": "http://120.27.231.56:48080/attachments/download/378175/654058514.mp3"}]
   end
   # json.orignal_file do
   #   json.array! @orignal_picture do |file|
diff --git a/app/views/libraries/index.json.jbuilder b/app/views/libraries/index.json.jbuilder
index c58d390b0..13ab8d77b 100644
--- a/app/views/libraries/index.json.jbuilder
+++ b/app/views/libraries/index.json.jbuilder
@@ -5,7 +5,7 @@ json.libraries do
 
     json.cover_url library.cover_id.present? ? download_url(library.cover) : nil
 
-    json.praise_count library.praise_tread_cache&.praise_num || 0
+    json.praise_count library.praises_count
     json.download_count @download_count_map.fetch(library.id, 0)
 
     json.published_at library.display_published_at
diff --git a/app/views/libraries/show.json.jbuilder b/app/views/libraries/show.json.jbuilder
index 0f4b6ea17..e1fc7d781 100644
--- a/app/views/libraries/show.json.jbuilder
+++ b/app/views/libraries/show.json.jbuilder
@@ -2,7 +2,7 @@ library = current_library
 
 json.extract! library, :id, :uuid, :title, :content, :author_name, :author_school_name, :status, :visited_count
 
-json.praise_count library.praise_tread_cache&.praise_num || 0
+json.praise_count library.praises_count
 
 json.published_at library.display_published_at
 json.created_at library.display_created_at
diff --git a/app/views/memos/_memo.json.jbuilder b/app/views/memos/_memo.json.jbuilder
index bc3744d1f..a33de2492 100644
--- a/app/views/memos/_memo.json.jbuilder
+++ b/app/views/memos/_memo.json.jbuilder
@@ -9,6 +9,6 @@ json.memo do
   json.tag memo.tag_repertoires.map(&:name)
   json.time memo.created_at
   json.replies_count memo.all_replies_count
-  json.user_praise memo.praise_treads.user_liker(@user.try(:id)) ? true : false
+  json.user_praise memo.praise_treads.user_liker(@user.try(:id)).count > 1 ? true : false
   json.memo_praise_count memo.praise_treads.liker.count
 end
diff --git a/config/routes.rb b/config/routes.rb
index 79542817f..b8db3afa6 100644
--- a/config/routes.rb
+++ b/config/routes.rb
@@ -5,6 +5,7 @@ Rails.application.routes.draw do
   mount Sidekiq::Web => '/sidekiq', :constraints => AdminConstraint.new
 
   get 'attachments/download/:id', to: 'attachments#show'
+  get 'attachments/download/:id/:filename', to: 'attachments#show'
 
   resources :edu_settings
   scope '/api' do
diff --git a/db/migrate/20190801075337_add_praises_count_to_memos.rb b/db/migrate/20190801075337_add_praises_count_to_memos.rb
new file mode 100644
index 000000000..0cc2259e2
--- /dev/null
+++ b/db/migrate/20190801075337_add_praises_count_to_memos.rb
@@ -0,0 +1,12 @@
+class AddPraisesCountToMemos < ActiveRecord::Migration[5.2]
+  def change
+    add_column :memos, :praises_count, :integer, :default => 0
+
+    memos = Memo.includes(:praise_treads).all
+    memos.find_each do |m|
+      puts("####{m.id}")
+      praises_count = m.praise_treads.select{|pt| pt.praise_or_tread == 1}.count
+      m.update_column(:praises_count, praises_count)
+    end
+  end
+end
diff --git a/db/migrate/20190801084533_add_praises_count_to_libraries.rb b/db/migrate/20190801084533_add_praises_count_to_libraries.rb
new file mode 100644
index 000000000..6a619104d
--- /dev/null
+++ b/db/migrate/20190801084533_add_praises_count_to_libraries.rb
@@ -0,0 +1,10 @@
+class AddPraisesCountToLibraries < ActiveRecord::Migration[5.2]
+  def change
+    add_column :libraries, :praises_count, :integer, :default => 0
+
+    Library.find_each do |library|
+      praises_count = library.praise_treads.count
+      library.update_column(:praises_count, praises_count)
+    end
+  end
+end