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class HomeworkCommon < ApplicationRecord
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# homework_type 1：普通作业 2：编程作业（弃用） 3：分组作业 4：实训作业
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enum homework_type: { normal: 1, program: 2, group: 3, practice: 4 }, _suffix: true
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has_many :homework_group_settings, dependent: :destroy
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has_many :published_settings, -> { group_published }, class_name: "HomeworkGroupSetting"
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has_many :student_works, -> { where("is_delete != 1") }
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has_one :homework_detail_manual, dependent: :destroy
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# 分组作业的设置
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has_one :homework_detail_group, dependent: :destroy
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belongs_to :course, counter_cache: true
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belongs_to :homework_bank, optional: true
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has_many :homework_challenge_settings, dependent: :destroy
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has_one :homework_commons_shixun, dependent: :destroy
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has_and_belongs_to_many :shixuns, through: :homework_commons_shixun
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# attachtype: 1（描述的附件）， 2（参考答案的附件）
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has_many :attachments, as: :container, dependent: :destroy
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# 作业的评论
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has_many :journals_for_messages, as: :jour, dependent: :destroy
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# 二级目录
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belongs_to :course_second_category, optional: true
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# 课堂动态
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has_many :course_acts, class_name: 'CourseActivity', as: :course_act, dependent: :destroy
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has_many :tidings, as: :container, dependent: :destroy
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# 实训作业的分班查重记录
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has_many :homework_group_reviews, :dependent => :destroy
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# 学生的查重情况
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has_many :homework_review_results, :dependent => :destroy
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validates :name, length: { maximum: 60 }
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validates :description, length: { maximum: 5000 }
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validates :reference_answer, length: { maximum: 5000 }
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# after_update :update_activity
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before_destroy :update_homework_bank_quotes
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#1已发布的课堂作业
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scope :homework_published, -> {where("homework_commons.publish_time IS NOT NULL AND homework_commons.publish_time <= ? ",Time.now)}
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scope :published_no_end, -> {where("homework_commons.publish_time IS NOT NULL AND homework_commons.publish_time < ?
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and homework_commons.end_time > ?", Time.now, Time.now)}
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scope :search_homework_type, lambda {|num| where(homework_type:num)}
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scope :unified_setting, -> {where("unified_setting = ? ", 1)}
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# 是否显示参考答案
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def view_answer identity, user_id
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identity < Course::STUDENT || (identity == Course::STUDENT && answer_public &&
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self.end_or_late && self.user_work(user_id).try(:work_status).to_i > 0)
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end
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# 申诉阶段
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def appeal_duration
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self.anonymous_appeal && [3, 4].include?(homework_detail_manual.comment_status)
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end
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# 作业对应的子目录/父目录名称
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def category_info
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case self.homework_type
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when 'normal'
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{category_id: course.common_course_modules.first.try(:id), category_name: course.common_course_modules.first.try(:module_name)}
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when 'group'
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{category_id: course.group_course_modules.first.try(:id), category_name: course.group_course_modules.first.try(:module_name)}
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when 'practice'
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if self.course_second_category.present?
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{category_id: self.course_second_category.try(:id), category_name: self.course_second_category.try(:name)}
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else
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{category_id: course.shixun_course_modules.first.try(:id), category_name: course.shixun_course_modules.first.try(:module_name)}
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end
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end
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end
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# 根据是否统一发布获取作业的作品列表
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def all_works
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student_works = self.unified_setting ? self.student_works :
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self.student_works.where(user_id: self.course.students.where(
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course_group_id: self.published_settings.pluck(:course_group_id)).
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pluck(:user_id))
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end
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# 分班权限的老师可见的作品列表
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def teacher_works user_id
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member = course.course_member(user_id)
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teacher_course_groups = member.try(:teacher_course_groups)
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all_student_works = self.all_works
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# 有分班权限的统计管理的分班且已发布的学生情况
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if member.present? && teacher_course_groups.size > 0
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group_ids = teacher_course_groups.pluck(:course_group_id)
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all_student_works = all_student_works.where(user_id: course.students.where(course_group_id: group_ids).pluck(:user_id))
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end
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all_student_works
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end
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def user_work user_id
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work = self.student_works.find_by_user_id(user_id)
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end
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# 是否在补交阶段内
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def late_duration
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homework_setting = self.homework_group_setting(User.current.id)
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!course.is_end && self.publish_time && self.publish_time < Time.now && homework_setting.end_time &&
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homework_setting.end_time < Time.now && self.allow_late && (self.late_time.nil? || self.late_time > Time.now)
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end
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# 作业是否补交截止或者不允许补交且提交截止
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def end_or_late
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status = false
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if self.course.is_end || (self.allow_late && self.late_time && self.late_time < Time.now)
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status = true
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elsif !self.allow_late
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homework_setting = self.homework_group_setting(User.current.id)
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status = homework_setting.end_time && homework_setting.end_time < Time.now
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end
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status
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end
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# 作业是否可以查重
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def code_review
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self.homework_type == 'practice' && self.publish_time.present? && self.publish_time < Time.now && self.homework_group_reviews.count == 0
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end
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# 作业能否立即发布
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def publish_immediately user
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homework_detail_manual.try(:comment_status) == 0 || homework_group_settings.where(course_group_id: course.charge_group_ids(user)).
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none_published.count > 0
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end
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# 作业能否立即截止
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def end_immediately user
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(unified_setting && homework_detail_manual.try(:comment_status) == 1 && end_time > Time.now) || homework_group_settings.
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where(course_group_id: course.charge_group_ids(user)).published_no_end.count > 0
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end
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# 学生是否提交了作品
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def user_has_commit_work user_id
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work = self.student_works.find_by_user_id(user_id)
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work.present? && work.work_status != 0
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end
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# 是否有学生提交过作品
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def has_commit_work
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student_works.has_committed.count > 0
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end
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# 是否有学生关联了项目
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def has_relate_project
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homework_type == "group" && student_works.where("project_id != 0").count > 0
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end
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# 作业描述的附件
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def des_attachments
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attachments.where(attachtype: 1)
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end
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# 参考答案的附件
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def ref_attachments
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attachments.where(attachtype: 2)
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end
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def update_activity
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course_activity = CourseActivity.find_by_course_act_type_and_course_act_id(self.class.to_s, self.id)
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course_activity.update_attributes(updated_at: Time.now) if course_activity
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end
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#删除时更新题库中的引用数
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def update_homework_bank_quotes
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old_banks = HomeworkBank.where(homework_common_id: self.id)
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unless old_banks.blank?
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old_banks.each do |bank|
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bank.update_attributes(quotes: (bank.quotes - 1) > 0 ? (bank.quotes - 1) : 0, homework_common_id: nil)
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end
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end
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end
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# 查重是否有新结果
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def code_reviews_new_results?
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self.homework_group_reviews.where(status: 0).count > 0
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end
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# 任务已评数 user_id: 对应老师的id
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def comment_count(user_id)
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course = self.course
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# 如果有分班，则取此老师对应分班的已评数，没有分班，则取所有的
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course_group_ids = course.group_course_power(user_id)
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sql =
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if course_group_ids.count > 0
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%Q{
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SELECT count(distinct sw.id) cnt FROM student_works sw
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JOIN student_works_scores sws on sws.student_work_id = sw.id WHERE
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reviewer_role IN(1,2) AND sw.id IN (SELECT id FROM student_works WHERE homework_common_id = #{self.id}
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AND user_id IN (SELECT user_id FROM course_members WHERE role = 4 AND course_group_id
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IN (SELECT course_group_id FROM teacher_course_groups WHERE id IN(#{course_group_ids.join(",")}))
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)
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)
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}
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else
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%Q{
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SELECT COUNT(distinct sw.id) cnt FROM student_works sw
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JOIN student_works_scores sws ON sw.id = sws.student_work_id
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WHERE reviewer_role IN(1,2) AND sw.homework_common_id = #{self.id}
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}
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end
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StudentWorksScore.find_by_sql(sql).first.try(:cnt).to_i
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end
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# 任务未评数
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def uncomment_count(user_id)
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user_ids = course.teacher_group_user_ids user_id
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self.student_works.where(user_id: user_ids).count - self.comment_count(user_id)
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end
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# 作品未提交数
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def unfinished_count user_id
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self.teacher_works(user_id).unfinished.count
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end
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# 任务按时提交数
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def finished_count user_id
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self.teacher_works(user_id).finished.count
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end
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def delay_finished_count user_id
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self.teacher_works(user_id).delay_finished.count
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end
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# 分组作业的最大分组id
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def max_group_id
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self.student_works.has_committed.maximum(:group_id).to_i + 1
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end
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# 作业的分班设置时间
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def homework_group_setting user_id
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member = course.course_member(user_id)
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group_setting = self.homework_group_settings.find_by_course_group_id(member.try(:course_group_id))
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homework_setting = group_setting.present? ? group_setting : self
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homework_setting
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end
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def min_group_publish_time
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HomeworkGroupSetting.where("homework_common_id = #{self.id} and publish_time is not null").pluck(:publish_time).min
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end
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def max_group_end_time
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HomeworkGroupSetting.where("homework_common_id = #{self.id} and end_time is not null").pluck(:end_time).max
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end
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end
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