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<?php
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// This file is part of Moodle - http://moodle.org/
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//
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// Moodle is free software: you can redistribute it and/or modify
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// it under the terms of the GNU General Public License as published by
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// the Free Software Foundation, either version 3 of the License, or
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// (at your option) any later version.
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//
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// Moodle is distributed in the hope that it will be useful,
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// but WITHOUT ANY WARRANTY; without even the implied warranty of
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// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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// GNU General Public License for more details.
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//
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// You should have received a copy of the GNU General Public License
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// along with Moodle. If not, see <http://www.gnu.org/licenses/>.
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/**
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* Question behaviour where the student can submit questions one at a
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* time for immediate feedback.
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*
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* @package qbehaviour
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* @subpackage immediatefeedback
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* @copyright 2009 The Open University
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* @license http://www.gnu.org/copyleft/gpl.html GNU GPL v3 or later
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*/
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defined('MOODLE_INTERNAL') || die();
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/**
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* Question behaviour for immediate feedback.
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*
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* Each question has a submit button next to it which the student can use to
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* submit it. Once the qustion is submitted, it is not possible for the
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* student to change their answer any more, but the student gets full feedback
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* straight away.
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*
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* @copyright 2009 The Open University
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* @license http://www.gnu.org/copyleft/gpl.html GNU GPL v3 or later
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*/
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class qbehaviour_immediatefeedback extends question_behaviour_with_save {
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const IS_ARCHETYPAL = true;
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public function is_compatible_question(question_definition $question) {
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return $question instanceof question_automatically_gradable;
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}
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public function can_finish_during_attempt() {
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return true;
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}
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public function get_min_fraction() {
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return $this->question->get_min_fraction();
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}
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public function get_expected_data() {
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if ($this->qa->get_state()->is_active()) {
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return array(
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'submit' => PARAM_BOOL,
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);
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}
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return parent::get_expected_data();
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}
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public function get_state_string($showcorrectness) {
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$state = $this->qa->get_state();
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if ($state == question_state::$todo) {
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return get_string('notcomplete', 'qbehaviour_immediatefeedback');
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} else {
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return parent::get_state_string($showcorrectness);
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}
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}
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public function get_right_answer_summary() {
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return $this->question->get_right_answer_summary();
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}
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public function process_action(question_attempt_pending_step $pendingstep) {
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if ($pendingstep->has_behaviour_var('comment')) {
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return $this->process_comment($pendingstep);
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} else if ($pendingstep->has_behaviour_var('submit')) {
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return $this->process_submit($pendingstep);
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} else if ($pendingstep->has_behaviour_var('finish')) {
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return $this->process_finish($pendingstep);
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} else {
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return $this->process_save($pendingstep);
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}
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}
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public function summarise_action(question_attempt_step $step) {
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if ($step->has_behaviour_var('comment')) {
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return $this->summarise_manual_comment($step);
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} else if ($step->has_behaviour_var('finish')) {
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return $this->summarise_finish($step);
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} else if ($step->has_behaviour_var('submit')) {
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return $this->summarise_submit($step);
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} else {
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return $this->summarise_save($step);
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}
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}
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public function process_submit(question_attempt_pending_step $pendingstep) {
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if ($this->qa->get_state()->is_finished()) {
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return question_attempt::DISCARD;
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}
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if (!$this->is_complete_response($pendingstep)) {
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$pendingstep->set_state(question_state::$invalid);
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} else {
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$response = $pendingstep->get_qt_data();
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list($fraction, $state) = $this->question->grade_response($response);
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$pendingstep->set_fraction($fraction);
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$pendingstep->set_state($state);
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$pendingstep->set_new_response_summary($this->question->summarise_response($response));
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}
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return question_attempt::KEEP;
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}
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public function process_finish(question_attempt_pending_step $pendingstep) {
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if ($this->qa->get_state()->is_finished()) {
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return question_attempt::DISCARD;
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}
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$response = $this->qa->get_last_step()->get_qt_data();
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if (!$this->question->is_gradable_response($response)) {
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$pendingstep->set_state(question_state::$gaveup);
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} else {
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list($fraction, $state) = $this->question->grade_response($response);
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$pendingstep->set_fraction($fraction);
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$pendingstep->set_state($state);
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}
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$pendingstep->set_new_response_summary($this->question->summarise_response($response));
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return question_attempt::KEEP;
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}
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public function process_save(question_attempt_pending_step $pendingstep) {
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$status = parent::process_save($pendingstep);
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if ($status == question_attempt::KEEP &&
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$pendingstep->get_state() == question_state::$complete) {
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$pendingstep->set_state(question_state::$todo);
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}
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return $status;
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}
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}
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