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pgfqe6ch8/app/models/exercise.rb

55 lines
2.4 KiB

6 years ago
class Exercise < ActiveRecord::Base
#exercise_status: 1,新建2发布3关闭
include Redmine::SafeAttributes
belongs_to :user
belongs_to :course ,:touch => true
belongs_to :exercise_bank
has_many :exercise_group_settings, :dependent => :destroy
has_many :exercise_questions, :dependent => :destroy
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has_many :exercise_users, :dependent => :destroy, :conditions => "exercise_users.is_delete = 0"
has_many :users, :through => :exercise_users #该测试被哪些用户提交答案过
has_many :course_acts, :class_name => 'CourseActivity',:as =>:course_act ,:dependent => :destroy
# 课程消息
has_many :tidings, as: :container, dependent: :destroy
has_many :course_messages, :class_name =>'CourseMessage', :as => :course_message, :dependent => :destroy
has_many :exercise_level_settings, :dependent => :destroy
has_many :exercise_user_questions
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after_create :acts_as_course_message
def acts_as_course_message
if self.course
if self.exercise_status == 2 #未发布
#self.course.members.each do |m|
self.course_messages << CourseMessage.create(:user_id => User.current.id, :course_id => self.course_id, :viewed => false,:status=>2)
#end
# else
# self.course_messages.destroy_all 这里的destory_all值得商榷。因为我这里是通过status来控制不同的status的
end
end
end
def create_user_question_list exercise_user_id
self.exercise_questions.where("question_type != 5").each do |question|
self.exercise_user_questions << ExerciseUserQuestion.new(exercise_user_id: exercise_user_id,
exercise_question_id: question)
end
self.exercise_level_settings.each do |setting|
# 每个级别中随机挑选num个实训题
setting.exercise_questions.pluck(:id).sample(setting.num).each do |question_id|
self.exercise_user_questions << ExerciseUserQuestion.new(exercise_user_id: exercise_user_id,
exercise_question_id: question_id)
end
end
end
def user_question_list exercise_user_id
if self.exercise_user_questions.where(exercise_user_id: exercise_user_id).count == 0
self.exercise_questions
else
self.exercise_questions.where(id: self.exercise_user_questions.where(exercise_user_id: exercise_user_id).
pluck(:exercise_question_id))
end
end
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end