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#
# Copyright (C) 2011 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 QuizSubmissionsController < ApplicationController
protect_from_forgery :except => [:create, :backup]
before_filter :require_context
def index
@quiz = @context.quizzes.find(params[:quiz_id])
redirect_to named_context_url(@context, :context_quiz_url, @quiz.id)
end
# submits the quiz as final
def create
redirect_params = {}
@quiz = @context.quizzes.find(params[:quiz_id])
if @quiz.ip_filter && !@quiz.valid_ip?(request.remote_ip)
flash[:error] = t('errors.protected_quiz', "This quiz is protected and is only available from certain locations. The computer you are currently using does not appear to be at a valid location for taking this quiz.")
elsif @quiz.grants_right?(@current_user, :submit)
@submission = @quiz.quiz_submissions.find_by_user_id(@current_user.id) if @current_user
# If the submission is a preview, we don't add it to the user's submission history,
# and it actually gets keyed by the temporary_user_code column instead of
preview = params[:preview] && @quiz.grants_right?(@current_user, session, :update)
@submission = nil if preview
if !@current_user || preview
@submission = @quiz.quiz_submissions.find_by_temporary_user_code(temporary_user_code(false))
@submission ||= @quiz.generate_submission(temporary_user_code(false) || @current_user, preview)
else
@submission ||= @quiz.generate_submission(@current_user, preview)
end
@submission.snapshot!(params)
if @submission.preview? || (@submission.untaken? && @submission.attempt == params[:attempt].to_i)
@submission.mark_completed
hash = {}
hash = @submission.submission_data if @submission.submission_data.is_a?(Hash) && @submission.submission_data[:attempt] == @submission.attempt
params_hash = hash.deep_merge(params) rescue params
@submission.submission_data = params_hash unless @submission.overdue?
flash[:notice] = t('errors.late_quiz', "You submitted this quiz late, and your answers may not have been recorded.") if @submission.overdue?
@submission.grade_submission
end
if preview
redirect_params[:preview] = 1
end
end
if session.delete('lockdown_browser_popup')
return render(:action => 'close_quiz_popup_window')
end
redirect_to course_quiz_url(@context, @quiz, redirect_params)
end
def backup
@quiz = @context.quizzes.find(params[:quiz_id])
if authorized_action(@quiz, @current_user, :submit)
preview = params[:preview] && @quiz.grants_right?(@current_user, session, :update)
if preview
@submission = @quiz.quiz_submissions.find_by_temporary_user_code(temporary_user_code(false))
else
@submission = @quiz.quiz_submissions.find_by_user_id(@current_user.id)
end
if @quiz.ip_filter && !@quiz.valid_ip?(request.remote_ip)
elsif preview || (@submission && @submission.temporary_user_code == temporary_user_code(false)) || (@submission && @submission.grants_right?(@current_user, session, :update))
if !@submission.completed? && !@submission.overdue?
@submission.backup_submission_data(params)
render :json => {:backup => true, :end_at => @submission && @submission.end_at}.to_json
return
end
end
render :json => {:backup => false, :end_at => @submission && @submission.end_at}.to_json
end
end
def extensions
@quiz = @context.quizzes.find(params[:quiz_id])
@student = @context.students.find(params[:user_id])
@submission = @quiz.find_or_create_submission(@student || @current_user, nil, 'settings_only')
if authorized_action(@submission, @current_user, :add_attempts)
@submission.extra_attempts ||= 0
@submission.extra_attempts = params[:extra_attempts].to_i if params[:extra_attempts]
@submission.extra_time = params[:extra_time].to_i if params[:extra_time]
@submission.manually_unlocked = params[:manually_unlocked] == '1' if params[:manually_unlocked]
if @submission.extendable? && (params[:extend_from_now] || params[:extend_from_end_at]).to_i > 0
if params[:extend_from_now].to_i > 0
@submission.end_at = Time.now + params[:extend_from_now].to_i.minutes
else
@submission.end_at += params[:extend_from_end_at].to_i.minutes
end
end
@submission.save!
respond_to do |format|
format.html { redirect_to named_context_url(@context, :context_quiz_history_url, @quiz, :user_id => @submission.user_id) }
format.json { render :json => @submission.to_json(:include_root => false, :exclude => :submission_data, :methods => ['extendable?', :finished_in_words, :attempts_left]) }
end
end
end
def update
@quiz = @context.quizzes.find(params[:quiz_id])
@submission = @quiz.quiz_submissions.find(params[:id])
if authorized_action(@submission, @current_user, :update_scores)
@submission.update_scores(params)
if params[:headless]
redirect_to named_context_url(@context, :context_quiz_history_url, @quiz, :user_id => @submission.user_id, :version => (params[:submission_version_number] || @submission.version_number), :headless => 1, :score_updated => 1)
else
redirect_to named_context_url(@context, :context_quiz_history_url, @quiz, :user_id => @submission.user_id, :version => (params[:submission_version_number] || @submission.version_number))
end
end
end
def show
@quiz = @context.quizzes.find(params[:quiz_id])
@submission = @quiz.quiz_submissions.find(params[:id])
if authorized_action(@submission, @current_user, :read)
redirect_to named_context_url(@context, :context_quiz_history_url, @quiz.id, :user_id => @submission.user_id)
end
end
end
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