查看答案的时间问题

app/controllers/games_controller.rb

@@ -290,6 +290,7 @@ class GamesController < ApplicationController
           answer_deduction = challenge.challenge_answers.where("level <= #{@answer.level}").sum(:score)
           @game.update_attributes!(:answer_open => answer_open, :answer_deduction => answer_deduction)
         end
+        GameAnswer.create!(challenge_answer_id: @answer.id, user_id: current_user.id, game_id: @game.id, view_time: Time.now)
 
       rescue Exception => e
         uid_logger_error("#######金币扣除异常: #{e.message}")
@@ -317,6 +318,7 @@ class GamesController < ApplicationController
           @game.update_attributes!(:answer_open => 1, :answer_deduction => 100)
         end
         @challenge_chooses = @challenge.challenge_chooses
+        GameAnswer.create!(user_id: current_user.id, game_id: @game.id, view_time: Time.now)
       rescue Exception => e
         uid_logger_error("#######金币扣除异常: #{e.message}")
         raise ActiveRecord::Rollback

app/helpers/myshixuns_helper.rb

@@ -11,4 +11,8 @@ module MyshixunsHelper
       nil
     end
   end
+
+  def view_answer_time game, user_id
+    game.game_answers.where(user_id: user_id).last&.view_time
+  end
 end

app/models/challenge_answer.rb

@@ -1,4 +1,9 @@
 class ChallengeAnswer < ApplicationRecord
   default_scope { order("challenge_answers.level asc") }
   belongs_to :challenge
+  has_many :game_answers, :dependent => :destroy
+
+  def view_answer_time(user_id)
+    game_answers.where(user_id: user_id).last&.view_time
+  end
 end

app/models/game.rb

@@ -15,7 +15,7 @@ class Game < ApplicationRecord
   belongs_to :user
   belongs_to :challenge
   has_one :run_code_message, :dependent => :destroy
-
+  has_many :game_answers, :dependent => :destroy
 
   #全部关卡数
   scope :ch_games, lambda { |challenge_id| where(challenge_id:challenge_id) }

app/models/game_answer.rb

@@ -0,0 +1,5 @@
+class GameAnswer < ApplicationRecord
+  belongs_to :user
+  belongs_to :game
+  belongs_to :challenge_answer
+end

app/views/games/get_answer_info.json.jbuilder

@@ -7,6 +7,7 @@ json.message do
     json.answer_id answer.id
     json.answer_name answer.name
     json.answer_score answer.score
+    json.view_time answer.view_answer_time(current_user.id)
     # 高层级不给答案
     if @power || @game.answer_open >= index
       json.answer_contents answer.contents

app/views/myshixuns/challenges.json.jbuilder

@@ -6,4 +6,6 @@ json.array! @games do |game|
   json.identifier get_game_identifier(@shixun.task_pass, game, @identity)
   json.get_gold game.user_get_gold_and_experience(@shixun.status, challenge)[0]
   json.get_experience game.user_get_gold_and_experience(@shixun.status, challenge)[1]
+  json.view_answer_time  view_answer_time(game, user_id)
+  json.finished_time game.end_time
 end

db/migrate/20191104033349_create_game_answers.rb

@@ -0,0 +1,13 @@
+class CreateGameAnswers < ActiveRecord::Migration[5.2]
+  def change
+    create_table :game_answers do |t|
+      t.references :challenge_answer
+      t.references :user
+      t.references :game
+      t.datetime :view_time
+
+      t.timestamps
+    end
+
+  end
+end

db/migrate/20191104055038_add_index_for_game_answers.rb

@@ -0,0 +1,5 @@
+class AddIndexForGameAnswers < ActiveRecord::Migration[5.2]
+  def change
+    add_index :game_answers, [:challenge_answer_id, :user_id], :unique => true
+  end
+end

spec/models/game_answer_spec.rb

@@ -0,0 +1,5 @@
+require 'rails_helper'
+
+RSpec.describe GameAnswer, type: :model do
+  pending "add some examples to (or delete) #{__FILE__}"
+end