教学案例浏览数不对

app/controllers/libraries_controller.rb

@@ -2,7 +2,7 @@ class LibrariesController < ApplicationController
   include PaginateHelper
 
   before_action :require_login, :check_auth, except: %i[index show]
-
+  after_action :increment_visit_count, only: [:show, :create, :edit, :update]
   helper_method :current_library, :library_manageable?
 
   def index
@@ -80,6 +80,10 @@ class LibrariesController < ApplicationController
     current_user&.id == library.user_id || admin_or_business?
   end
 
+  def increment_visit_count
+    current_library.increment_visited_count! if current_library && current_library.id
+  end
+
   def save_params
     params.permit(:title, :content, :author_name, :author_school_name,
                   :cover_id, :publish, attachment_ids: [], tag_ids: [])

app/models/library.rb

@@ -34,6 +34,10 @@ class Library < ApplicationRecord
     end
   end
 
+  def increment_visited_count!(num = 1)
+    increment_column!(:visited_count, num)
+  end
+
   def generate_uuid
     uuid = Util::UUID.time_uuid
     while Library.exists?(uuid: uuid)
@@ -42,4 +46,10 @@ class Library < ApplicationRecord
 
     self.uuid = uuid
   end
+
+  private
+
+  def increment_column!(column, num = 1)
+    self.class.connection.execute("update #{self.class.table_name} set #{column} = COALESCE(#{column}, 0) + #{num} where id = #{id}")
+  end
 end