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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/>.
/**
* This behaviour is for information items.
*
* @package qbehaviour
* @subpackage informationitem
* @copyright 2009 The Open University
* @license http://www.gnu.org/copyleft/gpl.html GNU GPL v3 or later
*/
defined('MOODLE_INTERNAL') || die();
/**
* Question behaviour informaiton items.
*
* For example for the 'Description' 'Question type'. There is no grade,
* and the question type is marked complete the first time the user navigates
* away from a page that contains that question.
*
* @copyright 2009 The Open University
* @license http://www.gnu.org/copyleft/gpl.html GNU GPL v3 or later
*/
class qbehaviour_informationitem extends question_behaviour {
public function is_compatible_question(question_definition $question) {
return true;
}
public function get_expected_data() {
if ($this->qa->get_state() == question_state::$todo) {
return array('seen' => PARAM_BOOL);
}
return parent::get_expected_data();
}
public function get_correct_response() {
if ($this->qa->get_state() == question_state::$todo) {
return array('seen' => 1);
}
return array();
}
public function adjust_display_options(question_display_options $options) {
parent::adjust_display_options($options);
$options->marks = question_display_options::HIDDEN;
// At the moment, the code exists to process a manual comment on an
// information item, but we don't display the UI unless there is already
// a comment.
if (!$this->qa->get_state()->is_commented()) {
$options->manualcomment = question_display_options::HIDDEN;
}
}
public function get_state_string($showcorrectness) {
return '';
}
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('finish')) {
return $this->process_finish($pendingstep);
} else if ($pendingstep->has_behaviour_var('seen')) {
return $this->process_seen($pendingstep);
} else {
return question_attempt::DISCARD;
}
}
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('seen')) {
return get_string('seen', 'qbehaviour_informationitem');
}
return $this->summarise_start($step);
}
public function process_comment(question_attempt_pending_step $pendingstep) {
if ($pendingstep->has_behaviour_var('mark')) {
throw new coding_exception('Information items cannot be graded.');
}
return parent::process_comment($pendingstep);
}
public function process_finish(question_attempt_pending_step $pendingstep) {
$pendingstep->set_state(question_state::$finished);
return question_attempt::KEEP;
}
public function process_seen(question_attempt_pending_step $pendingstep) {
$pendingstep->set_state(question_state::$complete);
return question_attempt::KEEP;
}
}