687 lines
25 KiB
Ruby
687 lines
25 KiB
Ruby
# frozen_string_literal: true
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class ExercisesController < ApplicationController
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include CommonBehavior
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include Lti
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include SubmissionParameters
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include TimeHelper
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before_action :handle_file_uploads, only: %i[create update]
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before_action :set_execution_environments, only: %i[index create edit new update]
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before_action :set_exercise_and_authorize,
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only: MEMBER_ACTIONS + %i[clone implement working_times intervention search run statistics submit reload feedback
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requests_for_comments study_group_dashboard export_external_check export_external_confirm]
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before_action :set_external_user_and_authorize, only: [:statistics]
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before_action :set_file_types, only: %i[create edit new update]
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before_action :set_course_token, only: [:implement]
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before_action :set_available_tips, only: %i[implement show new edit]
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skip_before_action :verify_authenticity_token,
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only: %i[import_exercise import_uuid_check export_external_confirm export_external_check]
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skip_after_action :verify_authorized, only: %i[import_exercise import_uuid_check export_external_confirm]
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skip_after_action :verify_policy_scoped, only: %i[import_exercise import_uuid_check export_external_confirm],
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raise: false
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def authorize!
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authorize(@exercise || @exercises)
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end
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private :authorize!
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def max_intervention_count_per_day
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3
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end
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def max_intervention_count_per_exercise
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1
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end
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def batch_update
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@exercises = Exercise.all
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authorize!
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@exercises = params[:exercises].values.map do |exercise_params|
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exercise = Exercise.find(exercise_params.delete(:id))
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exercise.update(exercise_params)
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exercise
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end
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render(json: {exercises: @exercises})
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end
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def clone
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exercise = @exercise.duplicate(public: false, token: nil, user: current_user)
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exercise.send(:generate_token)
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if exercise.save
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redirect_to(exercise, notice: t('shared.object_cloned', model: Exercise.model_name.human))
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else
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flash[:danger] = t('shared.message_failure')
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redirect_to(@exercise)
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end
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end
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def collect_paths(files)
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unique_paths = files.map(&:path).reject(&:blank?).uniq
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subpaths = unique_paths.map do |path|
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Array.new((path.split('/').length + 1)) do |n|
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path.split('/').shift(n).join('/')
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end
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end
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subpaths.flatten.uniq
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end
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private :collect_paths
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def create
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@exercise = Exercise.new(exercise_params&.except(:tips))
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collect_set_and_unset_exercise_tags
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handle_exercise_tips
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return if performed?
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myparam = exercise_params.presence || {}
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checked_exercise_tags = @exercise_tags.select {|et| myparam[:tag_ids].include? et.tag.id.to_s }
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removed_exercise_tags = @exercise_tags.reject {|et| myparam[:tag_ids].include? et.tag.id.to_s }
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checked_exercise_tags.each do |et|
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et.factor = params[:tag_factors][et.tag_id.to_s][:factor]
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et.exercise = @exercise
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end
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myparam[:exercise_tags] = checked_exercise_tags
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myparam.delete :tag_ids
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myparam.delete :tips
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removed_exercise_tags.map(&:destroy)
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authorize!
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create_and_respond(object: @exercise)
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end
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def destroy
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destroy_and_respond(object: @exercise)
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end
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def edit
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collect_set_and_unset_exercise_tags
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end
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def feedback
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authorize!
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@feedbacks = @exercise.user_exercise_feedbacks.paginate(page: params[:page])
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@submissions = @feedbacks.map do |feedback|
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feedback.exercise.final_submission(feedback.user)
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end
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end
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def export_external_check
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codeharbor_check = ExerciseService::CheckExternal.call(uuid: @exercise.uuid,
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codeharbor_link: current_user.codeharbor_link)
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render json: {
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message: codeharbor_check[:message],
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actions: render_to_string(
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partial: 'export_actions',
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locals: {
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exercise: @exercise,
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exercise_found: codeharbor_check[:exercise_found],
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update_right: codeharbor_check[:update_right],
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error: codeharbor_check[:error],
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exported: false,
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}
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),
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}, status: :ok
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end
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def export_external_confirm
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@exercise.uuid = SecureRandom.uuid if @exercise.uuid.nil?
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error = ExerciseService::PushExternal.call(
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zip: ProformaService::ExportTask.call(exercise: @exercise),
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codeharbor_link: current_user.codeharbor_link
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)
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if error.nil?
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render json: {
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status: 'success',
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message: t('exercises.export_codeharbor.successfully_exported', id: @exercise.id, title: @exercise.title),
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actions: render_to_string(partial: 'export_actions',
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locals: {exercise: @exercise, exported: true, error: error}),
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}
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@exercise.save
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else
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render json: {
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status: 'fail',
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message: t('exercises.export_codeharbor.export_failed', id: @exercise.id, title: @exercise.title, error: error),
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actions: render_to_string(partial: 'export_actions',
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locals: {exercise: @exercise, exported: true, error: error}),
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}
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end
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end
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def import_uuid_check
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user = user_from_api_key
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return render json: {}, status: :unauthorized if user.nil?
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uuid = params[:uuid]
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exercise = Exercise.find_by(uuid: uuid)
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return render json: {exercise_found: false} if exercise.nil?
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return render json: {exercise_found: true, update_right: false} unless ExercisePolicy.new(user, exercise).update?
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render json: {exercise_found: true, update_right: true}
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end
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def import_exercise
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tempfile = Tempfile.new('codeharbor_import.zip')
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tempfile.write request.body.read.force_encoding('UTF-8')
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tempfile.rewind
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user = user_from_api_key
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return render json: {}, status: :unauthorized if user.nil?
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ActiveRecord::Base.transaction do
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exercise = ::ProformaService::Import.call(zip: tempfile, user: user)
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exercise.save!
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return render json: {}, status: :created
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end
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rescue Proforma::ExerciseNotOwned
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render json: {}, status: :unauthorized
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rescue Proforma::ProformaError
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render json: t('exercises.import_codeharbor.import_errors.invalid'), status: :bad_request
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rescue StandardError => e
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Sentry.capture_exception(e)
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render json: t('exercises.import_codeharbor.import_errors.internal_error'), status: :internal_server_error
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end
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def user_from_api_key
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authorization_header = request.headers['Authorization']
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api_key = authorization_header&.split(' ')&.second
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user_by_codeharbor_token(api_key)
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end
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private :user_from_api_key
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def user_by_codeharbor_token(api_key)
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link = CodeharborLink.find_by(api_key: api_key)
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link&.user
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end
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private :user_by_codeharbor_token
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def exercise_params
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@exercise_params ||= if params[:exercise].present?
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params[:exercise].permit(
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:description,
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:execution_environment_id,
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:file_id,
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:instructions,
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:submission_deadline,
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:late_submission_deadline,
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:public,
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:unpublished,
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:hide_file_tree,
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:allow_file_creation,
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:allow_auto_completion,
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:title,
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:expected_difficulty,
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:tips,
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files_attributes: file_attributes,
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tag_ids: []
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).merge(
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user_id: current_user.id,
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user_type: current_user.class.name
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)
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end
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end
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private :exercise_params
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def handle_file_uploads
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if exercise_params
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exercise_params[:files_attributes].try(:each) do |_index, file_attributes|
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if file_attributes[:content].respond_to?(:read)
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if FileType.find_by(id: file_attributes[:file_type_id]).try(:binary?)
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file_attributes[:native_file] = file_attributes[:content]
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file_attributes[:content] = nil
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else
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file_attributes[:content] = file_attributes[:content].read.detect_encoding!.encode.delete("\x00")
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end
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end
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end
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end
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end
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private :handle_file_uploads
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def handle_exercise_tips
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return unless exercise_params && exercise_params[:tips]
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begin
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exercise_tips = JSON.parse(exercise_params[:tips])
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# Order is important to ensure no foreign key restraints are violated during delete
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previous_exercise_tips = ExerciseTip.where(exercise: @exercise).select(:id).order(rank: :desc).ids
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remaining_exercise_tips = update_exercise_tips exercise_tips, nil, 1
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# Destroy initializes each object and then calls a *single* SQL DELETE
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ExerciseTip.destroy(previous_exercise_tips - remaining_exercise_tips)
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rescue JSON::ParserError => e
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flash[:danger] = "JSON error: #{e.message}"
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redirect_to(edit_exercise_path(@exercise))
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end
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end
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private :handle_exercise_tips
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def update_exercise_tips(exercise_tips, parent_exercise_tip_id, rank)
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result = []
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exercise_tips.each do |exercise_tip|
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exercise_tip.symbolize_keys!
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current_exercise_tip = ExerciseTip.find_or_initialize_by(id: exercise_tip[:id],
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exercise: @exercise,
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tip_id: exercise_tip[:tip_id])
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current_exercise_tip.parent_exercise_tip_id = parent_exercise_tip_id
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current_exercise_tip.rank = rank
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rank += 1
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unless current_exercise_tip.save
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flash[:danger] = current_exercise_tip.errors.full_messages.join('. ')
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redirect_to(edit_exercise_path(@exercise)) and break
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end
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children = update_exercise_tips exercise_tip[:children], current_exercise_tip.id, rank
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rank += children.length
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result << current_exercise_tip.id
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result += children
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end
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result
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end
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private :update_exercise_tips
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def implement
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redirect_to(@exercise, alert: t('exercises.implement.unpublished')) if @exercise.unpublished? && current_user.role != 'admin' && current_user.role != 'teacher' # TODO: TESTESTEST
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redirect_to(@exercise, alert: t('exercises.implement.no_files')) unless @exercise.files.visible.exists?
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user_solved_exercise = @exercise.solved_by?(current_user)
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count_interventions_today = UserExerciseIntervention.where(user: current_user).where('created_at >= ?',
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Time.zone.now.beginning_of_day).count
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user_got_intervention_in_exercise = UserExerciseIntervention.where(user: current_user,
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exercise: @exercise).size >= max_intervention_count_per_exercise
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(user_got_enough_interventions = count_interventions_today >= max_intervention_count_per_day) || user_got_intervention_in_exercise
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if @embed_options[:disable_interventions]
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@show_rfc_interventions = false
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@show_break_interventions = false
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@show_tips_interventions = false
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else
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show_intervention = (!user_solved_exercise && !user_got_enough_interventions).to_s
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if @tips.present? && Java21Study.show_tips_intervention?(current_user, @exercise)
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@show_tips_interventions = show_intervention
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@show_break_interventions = false
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@show_rfc_interventions = false
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elsif Java21Study.show_break_intervention?(current_user, @exercise)
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@show_tips_interventions = false
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@show_break_interventions = show_intervention
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@show_rfc_interventions = false
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else
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@show_tips_interventions = false
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@show_break_interventions = false
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@show_rfc_interventions = show_intervention
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end
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end
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@hide_rfc_button = @embed_options[:disable_rfc]
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@search = Search.new
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@search.exercise = @exercise
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@submission = current_user.submissions.where(exercise_id: @exercise.id).order('created_at DESC').first
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@files = (@submission ? @submission.collect_files : @exercise.files).select(&:visible).sort_by(&:name_with_extension)
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@paths = collect_paths(@files)
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@user_id = if current_user.respond_to? :external_id
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current_user.external_id
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else
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current_user.id
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end
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end
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def set_course_token
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lti_parameters = LtiParameter.where(external_users_id: current_user.id,
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exercises_id: @exercise.id).last
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if lti_parameters
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lti_json = lti_parameters.lti_parameters['launch_presentation_return_url']
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@course_token =
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if lti_json.present? && (match = lti_json.match(%r{^.*courses/([a-z0-9\-]+)/sections}))
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match.captures.first
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else
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''
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end
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else
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# no consumer, therefore implementation with internal user
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@course_token = '702cbd2a-c84c-4b37-923a-692d7d1532d0'
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end
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end
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private :set_course_token
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def set_available_tips
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# Order of elements is important and will be kept
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available_tips = ExerciseTip.where(exercise: @exercise).order(rank: :asc)
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# Transform result set in a hash and prepare (temporary) children array.
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# The children array will contain the sorted list of nested tips,
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# shown for learners in the output sidebar with cards.
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# Hash - Key: exercise_tip.id, value: exercise_tip Object loaded from database
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nested_tips = available_tips.each_with_object({}) do |exercise_tip, hash|
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exercise_tip.children = []
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hash[exercise_tip.id] = exercise_tip
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end
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available_tips.each do |tip|
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# A tip without a parent cannot be a children
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next if tip.parent_exercise_tip_id.blank?
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# Link tips if they are related
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nested_tips[tip.parent_exercise_tip_id].children << tip
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end
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# Return an array with top-level tips
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@tips = nested_tips.values.select {|tip| tip.parent_exercise_tip_id.nil? }
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end
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private :set_available_tips
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def working_times
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working_time_accumulated = @exercise.accumulated_working_time_for_only(current_user)
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working_time_75_percentile = @exercise.get_quantiles([0.75]).first
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render(json: {working_time_75_percentile: working_time_75_percentile,
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working_time_accumulated: working_time_accumulated})
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end
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def intervention
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intervention = Intervention.find_by(name: params[:intervention_type])
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if intervention.nil?
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render(json: {success: 'false', error: "undefined intervention #{params[:intervention_type]}"})
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else
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uei = UserExerciseIntervention.new(
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user: current_user, exercise: @exercise, intervention: intervention,
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accumulated_worktime_s: @exercise.accumulated_working_time_for_only(current_user)
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)
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uei.save
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render(json: {success: 'true'})
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end
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end
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def search
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search_text = params[:search_text]
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search = Search.new(user: current_user, exercise: @exercise, search: search_text)
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begin search.save
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render(json: {success: 'true'})
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rescue StandardError
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render(json: {success: 'false', error: "could not save search: #{$ERROR_INFO}"})
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end
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end
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def index
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@search = policy_scope(Exercise).ransack(params[:q])
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@exercises = @search.result.includes(:execution_environment, :user).order(:title).paginate(page: params[:page])
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authorize!
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end
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def redirect_to_lti_return_path
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Sentry.set_extras(
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consumers_id: @submission.user&.consumer,
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external_users_id: @submission.user_id,
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exercises_id: @submission.exercise_id,
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session: session.to_hash,
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submission: @submission.inspect,
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params: params.as_json,
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current_user: current_user,
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lti_exercise_id: session[:lti_exercise_id],
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lti_parameters_id: session[:lti_parameters_id]
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)
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lti_parameter = LtiParameter.where(external_users_id: @submission.user_id,
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exercises_id: @submission.exercise_id).last
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path = lti_return_path(submission_id: @submission.id,
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url: consumer_return_url(build_tool_provider(consumer: @submission.user.consumer,
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parameters: lti_parameter.lti_parameters)))
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clear_lti_session_data(@submission.exercise_id, @submission.user_id)
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respond_to do |format|
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format.html { redirect_to(path) }
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format.json { render(json: {redirect: path}) }
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end
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end
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private :redirect_to_lti_return_path
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def new
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@exercise = Exercise.new
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collect_set_and_unset_exercise_tags
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authorize!
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end
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def set_execution_environments
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@execution_environments = ExecutionEnvironment.all.order(:name)
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end
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private :set_execution_environments
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def set_exercise_and_authorize
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@exercise = Exercise.find(params[:id])
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authorize!
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end
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private :set_exercise_and_authorize
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def set_external_user_and_authorize
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if params[:external_user_id]
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@external_user = ExternalUser.find(params[:external_user_id])
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authorize!
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end
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end
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private :set_external_user_and_authorize
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def set_file_types
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@file_types = FileType.all.order(:name)
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end
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private :set_file_types
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def collect_set_and_unset_exercise_tags
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@search = policy_scope(Tag).ransack(params[:q])
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@tags = @search.result.order(:name)
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checked_exercise_tags = @exercise.exercise_tags
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checked_tags = checked_exercise_tags.collect(&:tag).to_set
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unchecked_tags = Tag.all.to_set.subtract checked_tags
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@exercise_tags = checked_exercise_tags + unchecked_tags.collect do |tag|
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ExerciseTag.new(exercise: @exercise, tag: tag)
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end
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end
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private :collect_set_and_unset_exercise_tags
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def show
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# Show exercise details for teachers and admins
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end
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def reload
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# Returns JSON with original file content
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end
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def statistics
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if @external_user
|
|
# Render statistics page for one specific external user
|
|
authorize(@external_user, :statistics?)
|
|
if policy(@exercise).detailed_statistics?
|
|
@submissions = Submission.where(user: @external_user,
|
|
exercise_id: @exercise.id).in_study_group_of(current_user).order('created_at')
|
|
interventions = UserExerciseIntervention.where('user_id = ? AND exercise_id = ?', @external_user.id,
|
|
@exercise.id)
|
|
@all_events = (@submissions + interventions).sort_by(&:created_at)
|
|
@deltas = @all_events.map.with_index do |item, index|
|
|
delta = item.created_at - @all_events[index - 1].created_at if index.positive?
|
|
delta.nil? || (delta > StatisticsHelper::WORKING_TIME_DELTA_IN_SECONDS) ? 0 : delta
|
|
end
|
|
@working_times_until = []
|
|
@all_events.each_with_index do |_, index|
|
|
@working_times_until.push((format_time_difference(@deltas[0..index].sum) if index.positive?))
|
|
end
|
|
else
|
|
final_submissions = Submission.where(user: @external_user,
|
|
exercise_id: @exercise.id).in_study_group_of(current_user).final
|
|
@submissions = []
|
|
%i[before_deadline within_grace_period after_late_deadline].each do |filter|
|
|
relevant_submission = final_submissions.send(filter).latest
|
|
@submissions.push relevant_submission if relevant_submission.present?
|
|
end
|
|
@all_events = @submissions
|
|
end
|
|
render 'exercises/external_users/statistics'
|
|
else
|
|
# Show general statistic page for specific exercise
|
|
user_statistics = {}
|
|
additional_filter = if policy(@exercise).detailed_statistics?
|
|
''
|
|
elsif !policy(@exercise).detailed_statistics? && current_user.study_groups.count.positive?
|
|
"AND study_group_id IN (#{current_user.study_groups.pluck(:id).join(', ')}) AND cause = 'submit'"
|
|
else
|
|
# e.g. internal user without any study groups, show no submissions
|
|
'AND FALSE'
|
|
end
|
|
query = "SELECT user_id, MAX(score) AS maximum_score, COUNT(id) AS runs
|
|
FROM submissions WHERE exercise_id = #{@exercise.id} #{additional_filter} GROUP BY
|
|
user_id;"
|
|
ApplicationRecord.connection.execute(query).each do |tuple|
|
|
user_statistics[tuple['user_id'].to_i] = tuple
|
|
end
|
|
render locals: {
|
|
user_statistics: user_statistics,
|
|
}
|
|
end
|
|
end
|
|
|
|
def submit
|
|
@submission = Submission.create(submission_params)
|
|
@submission.calculate_score
|
|
if @submission.user.external_user? && lti_outcome_service?(@submission.exercise_id, @submission.user.id)
|
|
transmit_lti_score
|
|
else
|
|
redirect_after_submit
|
|
end
|
|
rescue Runner::Error => e
|
|
Rails.logger.debug { "Runner error while submitting submission #{@submission.id}: #{e.message}" }
|
|
respond_to do |format|
|
|
format.html { redirect_to(implement_exercise_path(@submission.exercise)) }
|
|
format.json { render(json: {message: I18n.t('exercises.editor.depleted'), status: :container_depleted}) }
|
|
end
|
|
end
|
|
|
|
def transmit_lti_score
|
|
::NewRelic::Agent.add_custom_attributes({submission: @submission.id,
|
|
normalized_score: @submission.normalized_score})
|
|
response = send_score(@submission)
|
|
|
|
if response[:status] == 'success'
|
|
if response[:score_sent] != @submission.normalized_score
|
|
# Score has been reduced due to the passed deadline
|
|
flash[:warning] = I18n.t('exercises.submit.too_late')
|
|
flash.keep(:warning)
|
|
end
|
|
redirect_after_submit
|
|
else
|
|
respond_to do |format|
|
|
format.html { redirect_to(implement_exercise_path(@submission.exercise)) }
|
|
format.json { render(json: {message: I18n.t('exercises.submit.failure')}, status: :service_unavailable) }
|
|
end
|
|
end
|
|
end
|
|
private :transmit_lti_score
|
|
|
|
def update
|
|
collect_set_and_unset_exercise_tags
|
|
handle_exercise_tips
|
|
return if performed?
|
|
|
|
myparam = exercise_params
|
|
checked_exercise_tags = @exercise_tags.select {|et| myparam[:tag_ids].include? et.tag.id.to_s }
|
|
removed_exercise_tags = @exercise_tags.reject {|et| myparam[:tag_ids].include? et.tag.id.to_s }
|
|
|
|
checked_exercise_tags.each do |et|
|
|
et.factor = params[:tag_factors][et.tag_id.to_s][:factor]
|
|
et.exercise = @exercise
|
|
end
|
|
|
|
myparam[:exercise_tags] = checked_exercise_tags
|
|
myparam.delete :tag_ids
|
|
myparam.delete :tips
|
|
removed_exercise_tags.map(&:destroy)
|
|
update_and_respond(object: @exercise, params: myparam)
|
|
end
|
|
|
|
def redirect_after_submit
|
|
Rails.logger.debug { "Redirecting user with score:s #{@submission.normalized_score}" }
|
|
if @submission.normalized_score.to_d == 1.0.to_d
|
|
# if user is external and has an own rfc, redirect to it and message him to clean up and accept the answer. (we need to check that the user is external,
|
|
# otherwise an internal user could be shown a false rfc here, since current_user.id is polymorphic, but only makes sense for external users when used with rfcs.)
|
|
# redirect 10 percent pseudorandomly to the feedback page
|
|
if current_user.respond_to? :external_id
|
|
if @submission.redirect_to_feedback? && !@embed_options[:disable_redirect_to_feedback]
|
|
clear_lti_session_data(@submission.exercise_id, @submission.user_id)
|
|
redirect_to_user_feedback
|
|
return
|
|
end
|
|
|
|
rfc = @submission.own_unsolved_rfc
|
|
if rfc
|
|
# set a message that informs the user that his own RFC should be closed.
|
|
flash[:notice] = I18n.t('exercises.submit.full_score_redirect_to_own_rfc')
|
|
flash.keep(:notice)
|
|
|
|
clear_lti_session_data(@submission.exercise_id, @submission.user_id)
|
|
respond_to do |format|
|
|
format.html { redirect_to(rfc) }
|
|
format.json { render(json: {redirect: url_for(rfc)}) }
|
|
end
|
|
return
|
|
end
|
|
|
|
# else: show open rfc for same exercise if available
|
|
rfc = @submission.unsolved_rfc
|
|
unless rfc.nil? || @embed_options[:disable_redirect_to_rfcs] || @embed_options[:disable_rfc]
|
|
# set a message that informs the user that his score was perfect and help in RFC is greatly appreciated.
|
|
flash[:notice] = I18n.t('exercises.submit.full_score_redirect_to_rfc')
|
|
flash.keep(:notice)
|
|
|
|
# increase counter 'times_featured' in rfc
|
|
rfc.increment(:times_featured)
|
|
|
|
clear_lti_session_data(@submission.exercise_id, @submission.user_id)
|
|
respond_to do |format|
|
|
format.html { redirect_to(rfc) }
|
|
format.json { render(json: {redirect: url_for(rfc)}) }
|
|
end
|
|
return
|
|
end
|
|
end
|
|
else
|
|
# redirect to feedback page if score is less than 100 percent
|
|
if @exercise.needs_more_feedback?(@submission) && !@embed_options[:disable_redirect_to_feedback]
|
|
clear_lti_session_data(@submission.exercise_id, @submission.user_id)
|
|
redirect_to_user_feedback
|
|
else
|
|
redirect_to_lti_return_path
|
|
end
|
|
return
|
|
end
|
|
redirect_to_lti_return_path
|
|
end
|
|
|
|
def redirect_to_user_feedback
|
|
uef = UserExerciseFeedback.find_by(exercise: @exercise, user: current_user)
|
|
url = if uef
|
|
edit_user_exercise_feedback_path(uef)
|
|
else
|
|
new_user_exercise_feedback_path(user_exercise_feedback: {exercise_id: @exercise.id})
|
|
end
|
|
|
|
respond_to do |format|
|
|
format.html { redirect_to(url) }
|
|
format.json { render(json: {redirect: url}) }
|
|
end
|
|
end
|
|
|
|
def study_group_dashboard
|
|
authorize!
|
|
@study_group_id = params[:study_group_id]
|
|
@request_for_comments = RequestForComment
|
|
.where(exercise: @exercise).includes(:submission)
|
|
.where(submissions: {study_group_id: @study_group_id})
|
|
.order(created_at: :desc)
|
|
|
|
@graph_data = @exercise.get_working_times_for_study_group(@study_group_id)
|
|
end
|
|
end
|