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# 学生加入课堂时创建相关任务作品
class CourseAddStudentCreateWorksJob < ApplicationJob
queue_as :course_member
def perform ( course_id , student_ids )
course = Course . find_by ( id : course_id )
return if course . blank?
# 如果之前存在相关作品，
student_works = StudentWork . joins ( :homework_common ) . where ( user_id : student_ids , homework_commons : { course_id : course . id } )
student_works . update_all ( is_delete : 0 )
exercise_users = ExerciseUser . joins ( :exercise ) . where ( user_id : student_ids , exercises : { course_id : course . id } )
exercise_users . update_all ( is_delete : 0 )
poll_users = PollUser . joins ( :poll ) . where ( user_id : student_ids , polls : { course_id : course . id } )
poll_users . update_all ( is_delete : 0 )
graduation_works = course . graduation_works . where ( user_id : student_ids )
graduation_works . update_all ( is_delete : 0 )
attrs = % i [ homework_common_id user_id created_at updated_at ]
StudentWork . bulk_insert ( * attrs ) do | worker |
student_ids . each do | teacher |
worker . add same_attrs . merge ( user_id : teacher . user_id )
end
end
end
end
