big-gradebook-generator.rb

N_ASSIGNMENTS=100
N_USERS=500

begin
  account = Account.default
  account.transaction do
    course = account.courses.create! name: "Big Gradebook"

    e = course.enroll_teacher(User.find(1))

    N_ASSIGNMENTS.times do |i|
      printf "\rmaking assignment... %3d/%d", i+1, N_ASSIGNMENTS
      course.assignments.create! name: "Assignment #{i+1}",
                                 submission_types: "online_text_entry",
                                 points_possible: rand(100)
    end
    puts

    500.times.each do |i|
      printf "\rmaking student... %3d/%d", i+1, N_USERS
      u = User.create! :name => "student #{i + 1}"
      e = course.enroll_student(u)
      e.update_attribute(:workflow_state, 'active')
    end
    puts

    # grade the students
    course.assignments.each_with_index do |a, i|
      course.students.each_with_index do |s, j|
        printf "\rgrading student %3d/%d for assignment %3d/%d",
          j+1, N_USERS, i+1, N_ASSIGNMENTS
        a.grade_student(s, grade: rand(a.points_possible)) unless rand > 0.9
      end
    end
  end
ensure
  puts
end