autograders_controller.rb

##
# Each Assessment can have an autograder, which is modified with this controller
#
class AutogradersController < ApplicationController
  before_action :set_assessment
  before_action :set_assessment_breadcrumb, only: [:edit]
  before_action :set_autograder, except: [:create]

  action_auth_level :create, :instructor
  def create
    @autograder = Autograder.new do |a|
      a.assessment_id = @assessment.id
      a.autograde_timeout = 180
      a.autograde_image = "autograding_image"
      a.release_score = true
    end
    flash[:info] = "Autograder Created" if @autograder.save
    redirect_to([:edit, @course, @assessment, :autograder]) && return
  end

  action_auth_level :edit, :instructor
  def edit
  end

  action_auth_level :update, :instructor
  def update
    flash[:info] = "Saved!" if @autograder.update(autograder_params)
		upload
    redirect_to([:edit, @course, @assessment, :autograder]) && return
  end
	
  action_auth_level :destroy, :instructor
  def destroy
    flash[:info] = "Destroyed!" if @autograder.destroy
    redirect_to([:edit, @course, @assessment]) && return
  end

  action_auth_level :upload, :instructor
  def upload
    uploaded_makefile = params[:autograder][:makefile]
	  uploaded_tar = params[:autograder][:tar]
	  if not uploaded_makefile.nil?
		  File.open(Rails.root.join('courses', @course.name, @assessment.name, 'autograde-Makefile'), 'wb') do |file|
		  file.write(uploaded_makefile.read) unless uploaded_makefile.nil?
		end	
	  end
	  if not uploaded_tar.nil?	
		  File.open(Rails.root.join('courses', @course.name, @assessment.name, 'autograde.tar'), 'wb') do |file|
		  file.write(uploaded_tar.read) unless uploaded_tar.nil?
		 end
	  end
  end

private

  def set_assessment_breadcrumb
    @breadcrumbs << (view_context.link_to "Edit Assessment", [:edit, @course, @assessment])
  end

  def set_autograder
    @autograder = @assessment.autograder
    redirect_to([@course, @assessment]) if @autograder.nil?
  end

  def autograder_params
    params[:autograder].permit(:autograde_timeout, :autograde_image, :release_score)
  end
end