trustieforge/lib/tasks/exercise_publish.rake

#coding=utf-8

namespace :exercise_publish do
  desc "publish exercise and end exercise"
  def calculate_student_score(exercise, user)
    score = 0
    score1 = 0
    score2 = 0
    score3 = 0
    exercise_qustions = exercise.exercise_questions
    exercise_qustions.each do |question|
      answer = get_user_answer(question, user)
      standard_answer = get_user_standard_answer(question, user)
      unless answer.empty?
        # 问答题有多个答案
        if question.question_type == 3 && !standard_answer.empty?
          if standard_answer.include?(answer.first.answer_text)
            score1 = score1+ question.question_score unless question.question_score.nil?
          end
        elsif question.question_type == 1 && !standard_answer.nil?
          if answer.first.exercise_choice.choice_position == standard_answer.exercise_choice_id
            score2 = score2 + question.question_score unless question.question_score.nil?
          end
        elsif question.question_type == 2 && !standard_answer.nil?
          arr = get_mulscore(question, user)
          if arr.to_i == standard_answer.exercise_choice_id
            score3 = score3 + question.question_score unless question.question_score.nil?
          end
        end
      end
    end
    score = score1 + score2 + score3
  end

  task :publish => :environment do
    Rails.logger.info("log--------------------------------exercise_publish start")
    puts "--------------------------------exercise_publish start"
    exercises = Exercise.where("publish_time is not null and exercise_status = 1 and publish_time <=?",Time.now)
    exercises.each do |exercise|
      exercise.update_column('exercise_status', 2)
      course = exercise.course
      course.members.each do |m|
        exercise.course_messages << CourseMessage.new(:user_id => m.user_id, :course_id => course.id, :viewed => false, :status => 2)
      end
    end
    Rails.logger.info("log--------------------------------exercise_publish end")
    puts "--------------------------------exercise_publish end"
  end

  task :end => :environment do
    include ExerciseHelper
    exercises = Exercise.where("end_time <=? and exercise_status = 2",Time.now)
    exercises.each do |exercise|
      course = exercise.course
      exercise.update_column('exercise_status', 3)
      course.student.each do |student|
        exercise_user = ExerciseUser.where("user_id =? and exercise_id=?", student.student_id, exercise.id).first
        if exercise_user
          exercise_user = ExerciseUser.create(:user_id => student.student_id, :exercise_id => exercise.id, :start_at => exercise.end_time, :status => true,:score=>0)
        else
          exercise_user.update_column('commit_status', 1)
        end
        s_score = calculate_student_score(exercise, student.student)
        exercise_user.update_attributes(:objective_score => s_score, :score => (s_score + (exercise_user.subjective_score > 0 ? exercise_user.subjective_score : 0)))
      end
    end
  end
end