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Website : rimsha.abasa.com
: / var / canvas / app / models / quizzes /
Filename : quiz_regrade_run.rb
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# frozen_string_literal: true

#
# Copyright (C) 2013 - present Instructure, Inc.
#
# This file is part of Canvas.
#
# Canvas is free software: you can redistribute it and/or modify it under
# the terms of the GNU Affero General Public License as published by the Free
# Software Foundation, version 3 of the License.
#
# Canvas is distributed in the hope that it will be useful, but WITHOUT ANY
# WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS FOR
# A PARTICULAR PURPOSE. See the GNU Affero General Public License for more
# details.
#
# You should have received a copy of the GNU Affero General Public License along
# with this program. If not, see <http://www.gnu.org/licenses/>.

class Quizzes::QuizRegradeRun < ActiveRecord::Base
  self.table_name = "quiz_regrade_runs"

  belongs_to :quiz_regrade, class_name: "Quizzes::QuizRegrade"

  validates :quiz_regrade_id, presence: true
  delegate :root_account, to: :quiz_regrade

  def self.perform(regrade)
    run = create!(quiz_regrade_id: regrade.id, started_at: Time.now)
    yield
    run.finished_at = Time.now
    run.save!
  end

  def course_broadcast_data
    quiz.context&.broadcast_data
  end

  has_a_broadcast_policy
  set_broadcast_policy do |policy|
    policy.dispatch :quiz_regrade_finished
    policy.to { teachers }
    policy.whenever(&:send_messages?)
    policy.data { course_broadcast_data }
  end

  def send_messages?
    old, new = saved_changes["finished_at"]
    !!(new && old.nil?) && Quizzes::QuizRegradeRun.where(quiz_regrade_id: quiz_regrade).count == 1
  end

  delegate :teachers, :quiz, to: :quiz_regrade
end