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<?php
// This file is part of Moodle - http://moodle.org/
//
// Moodle is free software: you can redistribute it and/or modify
// it under the terms of the GNU General Public License as published by
// the Free Software Foundation, either version 3 of the License, or
// (at your option) any later version.
//
// Moodle 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 General Public License for more details.
//
// You should have received a copy of the GNU General Public License
// along with Moodle. If not, see <http://www.gnu.org/licenses/>.
/**
* Question behaviour where the student can submit questions one at a
* time for immediate feedback.
*
* @package qbehaviour
* @subpackage immediatefeedback
* @copyright 2009 The Open University
* @license http://www.gnu.org/copyleft/gpl.html GNU GPL v3 or later
*/
defined('MOODLE_INTERNAL') || die();
/**
* Question behaviour for immediate feedback.
*
* Each question has a submit button next to it which the student can use to
* submit it. Once the qustion is submitted, it is not possible for the
* student to change their answer any more, but the student gets full feedback
* straight away.
*
* @copyright 2009 The Open University
* @license http://www.gnu.org/copyleft/gpl.html GNU GPL v3 or later
*/
class qbehaviour_immediatefeedback extends question_behaviour_with_save {
const IS_ARCHETYPAL = true;
public function is_compatible_question(question_definition $question) {
return $question instanceof question_automatically_gradable;
}
public function get_min_fraction() {
return $this->question->get_min_fraction();
}
public function get_expected_data() {
if ($this->qa->get_state()->is_active()) {
return array(
'submit' => PARAM_BOOL,
);
}
return parent::get_expected_data();
}
public function get_state_string($showcorrectness) {
$state = $this->qa->get_state();
if ($state == question_state::$todo) {
return get_string('notcomplete', 'qbehaviour_immediatefeedback');
} else {
return parent::get_state_string($showcorrectness);
}
}
public function get_right_answer_summary() {
return $this->question->get_right_answer_summary();
}
public function process_action(question_attempt_pending_step $pendingstep) {
if ($pendingstep->has_behaviour_var('comment')) {
return $this->process_comment($pendingstep);
} else if ($pendingstep->has_behaviour_var('submit')) {
return $this->process_submit($pendingstep);
} else if ($pendingstep->has_behaviour_var('finish')) {
return $this->process_finish($pendingstep);
} else {
return $this->process_save($pendingstep);
}
}
public function summarise_action(question_attempt_step $step) {
if ($step->has_behaviour_var('comment')) {
return $this->summarise_manual_comment($step);
} else if ($step->has_behaviour_var('finish')) {
return $this->summarise_finish($step);
} else if ($step->has_behaviour_var('submit')) {
return $this->summarise_submit($step);
} else {
return $this->summarise_save($step);
}
}
public function process_submit(question_attempt_pending_step $pendingstep) {
if ($this->qa->get_state()->is_finished()) {
return question_attempt::DISCARD;
}
if (!$this->is_complete_response($pendingstep)) {
$pendingstep->set_state(question_state::$invalid);
} else {
$response = $pendingstep->get_qt_data();
list($fraction, $state) = $this->question->grade_response($response);
$pendingstep->set_fraction($fraction);
$pendingstep->set_state($state);
$pendingstep->set_new_response_summary($this->question->summarise_response($response));
}
return question_attempt::KEEP;
}
public function process_finish(question_attempt_pending_step $pendingstep) {
if ($this->qa->get_state()->is_finished()) {
return question_attempt::DISCARD;
}
$response = $this->qa->get_last_step()->get_qt_data();
if (!$this->question->is_gradable_response($response)) {
$pendingstep->set_state(question_state::$gaveup);
} else {
list($fraction, $state) = $this->question->grade_response($response);
$pendingstep->set_fraction($fraction);
$pendingstep->set_state($state);
}
$pendingstep->set_new_response_summary($this->question->summarise_response($response));
return question_attempt::KEEP;
}
public function process_save(question_attempt_pending_step $pendingstep) {
$status = parent::process_save($pendingstep);
if ($status == question_attempt::KEEP &&
$pendingstep->get_state() == question_state::$complete) {
$pendingstep->set_state(question_state::$todo);
}
return $status;
}
}
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