点赞问题

app/views/hack_user_lastest_codes/show.json.jbuilder

@@ -1,11 +1,12 @@
 json.hack do
-  json.(@hack, :name, :difficult, :time_limit, :description, :score, :identifier, :status)
+  json.(@hack, :name, :difficult, :time_limit, :description, :score, :identifier, :status, :praises_count)
   json.language @hack.language
   json.username @hack.user.real_name
   json.code @my_hack.code
   json.pass_count @hack.pass_num
   json.submit_count @hack.submit_num
   json.modify_code @modify
+  json.comments_count @hack.discusses.count
 end
 
 json.test_case do

db/migrate/20191223120424_add_praises_count_for_hacks.rb

@@ -1,5 +1,6 @@
 class AddPraisesCountForHacks < ActiveRecord::Migration[5.2]
   def change
     add_column :hacks, :praises_count, :integer, :default => 0
+    add_column :hacks, :comments_count, :integer, :default => 0
   end
 end