socialforge/app/models/homework_common.rb

#encoding: utf-8
#老师布置的作业表
#homework_type: 0:普通作业;1:匿评作业;2:编程作业;3:分组作业;
class HomeworkCommon < ActiveRecord::Base
  # attr_accessible :name, :user_id, :description, :publish_time, :end_time, :homework_type, :late_penalty, :course_id,:simi_time
  require 'net/http'
  require 'json'
  include Redmine::SafeAttributes
  include ApplicationHelper

  belongs_to :course
  belongs_to :user
  belongs_to :homework_bank
  has_one :homework_detail_manual, :dependent => :destroy
  has_one :homework_detail_programing, :dependent => :destroy
  has_one :homework_detail_group, :dependent => :destroy
  has_many :student_work_projects, :dependent => :destroy
  has_many :homework_tests, :dependent => :destroy
  has_many :homework_samples, :dependent => :destroy
  has_many :student_works, :dependent => :destroy, :conditions => "is_test=0 and is_delete != 1"
  has_many :student_works_evaluation_distributions, :through => :student_works #一个作业的分配的匿评列表
  has_many :journals_for_messages, :as => :jour, :dependent => :destroy
  has_many :apply_homeworks, :dependent => :destroy
  has_many :praise_tread, as: :praise_tread_object, dependent: :destroy
  has_one :praise_tread_cache, as: :object, dependent: :destroy
  has_many :acts, :class_name => 'Activity', :as => :act, :dependent => :destroy #用户活动
  # 课程动态
  has_many :course_acts, :class_name => 'CourseActivity',:as =>:course_act ,:dependent => :destroy
  # 课程消息
  has_many :course_messages, :class_name =>'CourseMessage', :as => :course_message, :dependent => :destroy
  acts_as_attachable
  acts_as_event :title => Proc.new {|o| "#{l(:label_course_homework)} ##{o.id}: #{o.name}" },
                :description => :description,
                :author => :author,
                :url => Proc.new {|o| {:controller => 'student_work', :action => 'index', :homework => o.id}}
  after_create :act_as_activity, :act_as_course_message, :delay_homework_send
  after_update :update_activity
  after_save :act_as_course_activity
  after_destroy :delete_kindeditor_assets
  before_destroy :update_homework_bank_quotes, :update_course_statistics

  #删除时更新题库中的引用数
  def update_homework_bank_quotes
    old_banks = HomeworkBank.where(:id => self.homework_bank_id)
    unless old_banks.blank?
      old_banks.first.update_attributes(:quotes => (old_banks.first.quotes - 1) > 0 ? (old_banks.first.quotes - 1) : 0, :homework_common_id => nil)
    end
    HomeworkBank.where(:homework_common_id => self.id).update_all(:homework_common_id => nil)
  end

  #更新CourseHomeworkStatistics中每个学生的未交作品数、已交作品数、迟交作品数
  def update_course_statistics
    course = self.course
    hw_count = course.homework_commons.includes(:homework_detail_manual).where("homework_detail_manuals.comment_status > 0").count
    homework_ids = course.homework_commons.includes(:homework_detail_manual).where("homework_detail_manuals.comment_status > 0").empty? ? "(-1)" : "(" + course.homework_commons.includes(:homework_detail_manual).where("homework_detail_manuals.comment_status > 0").map{|hw| hw.id}.join(",") + ")"
    student_works = StudentWork.where("homework_common_id in #{homework_ids} and work_status !=0")
    is_eva_homeworks = course.homework_commons.includes(:homework_detail_manual).where("homework_commons.anonymous_comment = 0 and homework_detail_manuals.comment_status = 2")
    is_eva_student_works = StudentWork.where(:homework_common_id => is_eva_homeworks.map{|hw| hw.id})
    has_eva_homeworks = course.homework_commons.includes(:homework_detail_manual).where("homework_commons.anonymous_comment = 0 and homework_detail_manuals.comment_status = 3")
    has_eva_student_works = StudentWork.where(:homework_common_id => has_eva_homeworks.map{|hw| hw.id})
    course.student.each do |student|
      user = student.student
      course_statistics = CourseHomeworkStatistics.find_by_course_id_and_user_id(course.id, student.student_id)
      if user && course_statistics
        committed_work_num = user.student_works.where("homework_common_id in #{homework_ids} and work_status != 0").count
        un_commit_work_num = (hw_count - committed_work_num) < 0 ? 0 : (hw_count - committed_work_num)
        late_commit_work_num = user.student_works.where("homework_common_id in #{homework_ids} and work_status = 2").count
        absence_evaluation_work_num = user.student_works_evaluation_distributions.where(:student_work_id => has_eva_student_works.map(&:id)).count -
            user.student_works_scores.where(:reviewer_role => 3, :student_work_id => has_eva_student_works.map(&:id)).group_by(&:student_work_id).count
        absence_evaluation_work_num = absence_evaluation_work_num < 0 ? 0 : absence_evaluation_work_num
        un_evaluation_work_num = user.student_works_evaluation_distributions.where(:student_work_id => is_eva_student_works.map(&:id)).count -
            user.student_works_scores.where(:reviewer_role => 3, :student_work_id => is_eva_student_works.map(&:id)).group_by(&:student_work_id).count
        un_evaluation_work_num = un_evaluation_work_num < 0 ? 0 : un_evaluation_work_num
        appeal_num = user.student_works_scores.where(:student_work_id => student_works.map(&:id), :appeal_status => 3).count
        average_score = user.student_works.where(:id => student_works.map(&:id)).select("AVG(student_works.work_score) as score").first ? user.student_works.where(:id => student_works.map(&:id)).select("AVG(student_works.work_score) as score").first.score : 0
        total_score = user.student_works.where(:id => student_works.map(&:id)).select("SUM(student_works.work_score) as score").first ? user.student_works.where(:id => student_works.map(&:id)).select("SUM(student_works.work_score) as score").first.score : 0
        course_statistics.update_attributes(:committed_work_num => committed_work_num, :un_commit_work_num => un_commit_work_num,
                                            :late_commit_work_num => late_commit_work_num, :absence_evaluation_work_num => absence_evaluation_work_num, :un_evaluation_work_num => un_evaluation_work_num,
                                            :appeal_num => appeal_num, :average_score => average_score, :total_score => total_score)
      end
    end
  end

  #作业类型
  def homework_type_ch
    type = self.homework_type
    case type
      when 1
        type = "普通"
      when 2
        type = "编程"
      when 3
        type = "分组"
    end
    type
  end

  def act_as_activity
    self.acts << Activity.new(:user_id => self.user_id)
  end

  #课程动态公共表记录
  def act_as_course_activity
    if self.course
      if self.homework_detail_manual.comment_status == 0
        self.course_acts.destroy_all
      else
        if self.course_acts.size == 0
          self.course_acts << CourseActivity.new(:user_id => self.user_id,:course_id => self.course_id)
        end
      end
    end
  end

  #课程作业消息记录
  def act_as_course_message
    if self.course
      if self.homework_detail_manual.comment_status == 0
        self.course_messages.destroy_all
      else
        # self.course.members.each do |m|
        #   # if m.user_id != self.user_id
        #   #self.course_messages << CourseMessage.new(:user_id => m.user_id, :course_id => self.course_id, :viewed => false)
        #   rolesids = []
        #   m.roles.each do |role|
        #     rolesids << role.id
        #   end
        #   if rolesids.include?(10)
        #     count = ShieldWechatMessage.where("container_type='User' and container_id=#{m.user_id} and shield_type='Course' and shield_id=#{self.course_id}").count
        #     if count == 0
        #       ws = WechatService.new
        #       name = self.course.syllabus.nil? ? self.course.name : self.course.syllabus.title+" • "+self.course.name
        #       ws.homework_message_notice(m.user_id, "homework", self.id, "#{m.user.show_name}，#{l(:label_new_homework_template)}", name, "新作业："+ self.name.html_safe, "作业内容请点击“详情”查看。")
        #     end
        #   end
        #   # end
        # end
        self.delay.homework_wechat_message
      end
    end
  end

  def homework_wechat_message
    self.course.members.each do |m|
      rolesids = []
      m.roles.each do |role|
        rolesids << role.id
      end
      if rolesids.include?(10)
        count = ShieldWechatMessage.where("container_type='User' and container_id=#{m.user_id} and shield_type='Course' and shield_id=#{self.course_id}").count
        if count == 0
          ws = WechatService.new
          name = self.course.syllabus.nil? ? self.course.name : self.course.syllabus.title+" • "+self.course.name
          ws.homework_message_notice(m.user_id, "homework", self.id, "#{m.user.show_name}，#{l(:label_new_homework_template)}", name, "新作业："+ self.name.html_safe, "作业内容请点击“详情”查看。")
        end
      end
      # end
    end
  end

  def delay_homework_send
    if self.course
      if self.homework_detail_manual.comment_status != 0
        vs = []
        self.course.members.each do | m|
          if m.user_id != self.user_id
            vs << {course_message_type:'HomeworkCommon',course_message_id:self.id, :user_id => m.user_id,
                   :course_id => self.course_id, :viewed => false}

            #delayed_job卡住的原因是一次执行的条数太多，导致超时。
            #现在把每次只执行不超过30条，就不会超了。
            if vs.size >= 30
              self.delay.contain_homework_message(vs)
              vs.clear
            end
          end
        end

        unless vs.empty?
          self.delay.contain_homework_message(vs)
        end
      end
    end
  end

  def contain_homework_message(vs)
    CourseMessage.create(vs)
  end

  #作业微信通知delay
  def send_homework_wechat_message_delay
    self.course.members.each do |m|
      if m.user_id != self.user_id
        self.course_messages << CourseMessage.new(:user_id => m.user_id, :course_id => self.course_id, :viewed => false)
      end
      rolesids = []
      m.roles.each do |role|
        rolesids << role.id
      end
      if rolesids.include?(10)
        count = ShieldWechatMessage.where("container_type='User' and container_id=#{m.user_id} and shield_type='Course' and shield_id=#{self.course_id}").count
        if count == 0
          ws = WechatService.new
          name = self.course.syllabus.nil? ? self.course.name : self.course.syllabus.title+" • "+self.course.name
          ws.homework_message_notice(m.user_id, "homework", self.id, "#{m.user.show_name}，#{l(:label_new_homework_template)}", name, "新作业："+ self.name.html_safe, "作业内容请点击“详情”查看。")
        end
      end
      # end
    end
  end


  #动态的更新
  def update_activity
    update_course_activity(self.class, self.id)
    update_user_activity(self.class, self.id)
    update_org_activity(self.class, self.id)
  end
  #删除对应的图片
  def delete_kindeditor_assets
    delete_kindeditor_assets_from_disk self.id,OwnerTypeHelper::HOMEWORKCOMMON
  end

  def send_mail
    # if self.homework_detail_manual.comment_status != 0
    #   Mailer.run.homework_added(self)
    # end
  end

  def is_program_homework?
    self.homework_type == 2 && self.homework_detail_programing
  end

  def is_group_homework?
    self.homework_type == 3 && self.homework_detail_group
  end

  ###添加回复
  def self.add_homework_jour(user, notes, id, root_id, options = {})
    homework = HomeworkCommon.find(id)
    if options.count == 0
      jfm = homework.journals_for_messages.build(:user_id => user.id, :notes => notes, :reply_id => 0, :root_id => root_id)
    else
      jfm = homework.journals_for_messages.build(options)
    end
    jfm.save
    jfm
  end

  #修改作业后发送微信模板消息
  # def wechat_message
  #   self.course.members.each do |member|
  #     count = ShieldWechatMessage.where("container_type='User' and container_id=#{member.user_id} and shield_type='Course' and shield_id=#{self.course_id}").count
  #     if count == 0
  #       ws = WechatService.new
  #       ws.homework_template(member.user_id, "homework", self.id, "#{l(:label_update_homework_template)}", self.course.name, self.name.html_safe, self.end_time.to_s + " 23:59:59")
  #     end
  #   end
  # end

  def set_jour_viewed
    self.journals_for_messages.each do |j|
      User.current.at_messages.unviewed('JournalsForMessage', j.id).each {|x| x.viewed!}
    end
  end

  delegate :language_name, :language, :to => :homework_detail_programing

end