weekly release 2.9dev
[moodle.git] / question / behaviour / immediatefeedback / behaviour.php
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d1b7e03d 1<?php
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2// This file is part of Moodle - http://moodle.org/
3//
4// Moodle is free software: you can redistribute it and/or modify
5// it under the terms of the GNU General Public License as published by
6// the Free Software Foundation, either version 3 of the License, or
7// (at your option) any later version.
8//
9// Moodle is distributed in the hope that it will be useful,
10// but WITHOUT ANY WARRANTY; without even the implied warranty of
11// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
12// GNU General Public License for more details.
13//
14// You should have received a copy of the GNU General Public License
15// along with Moodle. If not, see <http://www.gnu.org/licenses/>.
16
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17/**
18 * Question behaviour where the student can submit questions one at a
19 * time for immediate feedback.
20 *
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21 * @package qbehaviour
22 * @subpackage immediatefeedback
23 * @copyright 2009 The Open University
24 * @license http://www.gnu.org/copyleft/gpl.html GNU GPL v3 or later
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25 */
26
27
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28defined('MOODLE_INTERNAL') || die();
29
30
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31/**
32 * Question behaviour for immediate feedback.
33 *
34 * Each question has a submit button next to it which the student can use to
35 * submit it. Once the qustion is submitted, it is not possible for the
36 * student to change their answer any more, but the student gets full feedback
37 * straight away.
38 *
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39 * @copyright 2009 The Open University
40 * @license http://www.gnu.org/copyleft/gpl.html GNU GPL v3 or later
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41 */
42class qbehaviour_immediatefeedback extends question_behaviour_with_save {
43 const IS_ARCHETYPAL = true;
44
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45 public function is_compatible_question(question_definition $question) {
46 return $question instanceof question_automatically_gradable;
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47 }
48
49 public function get_min_fraction() {
50 return $this->question->get_min_fraction();
51 }
52
53 public function get_expected_data() {
54 if ($this->qa->get_state()->is_active()) {
55 return array(
56 'submit' => PARAM_BOOL,
57 );
58 }
59 return parent::get_expected_data();
60 }
61
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62 public function get_state_string($showcorrectness) {
63 $state = $this->qa->get_state();
64 if ($state == question_state::$todo) {
65 return get_string('notcomplete', 'qbehaviour_immediatefeedback');
66 } else {
67 return parent::get_state_string($showcorrectness);
68 }
69 }
70
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71 public function get_right_answer_summary() {
72 return $this->question->get_right_answer_summary();
73 }
74
75 public function process_action(question_attempt_pending_step $pendingstep) {
76 if ($pendingstep->has_behaviour_var('comment')) {
77 return $this->process_comment($pendingstep);
78 } else if ($pendingstep->has_behaviour_var('submit')) {
79 return $this->process_submit($pendingstep);
80 } else if ($pendingstep->has_behaviour_var('finish')) {
81 return $this->process_finish($pendingstep);
82 } else {
83 return $this->process_save($pendingstep);
84 }
85 }
86
87 public function summarise_action(question_attempt_step $step) {
88 if ($step->has_behaviour_var('comment')) {
89 return $this->summarise_manual_comment($step);
90 } else if ($step->has_behaviour_var('finish')) {
91 return $this->summarise_finish($step);
92 } else if ($step->has_behaviour_var('submit')) {
93 return $this->summarise_submit($step);
94 } else {
95 return $this->summarise_save($step);
96 }
97 }
98
99 public function process_submit(question_attempt_pending_step $pendingstep) {
100 if ($this->qa->get_state()->is_finished()) {
101 return question_attempt::DISCARD;
102 }
103
104 if (!$this->is_complete_response($pendingstep)) {
105 $pendingstep->set_state(question_state::$invalid);
106
107 } else {
108 $response = $pendingstep->get_qt_data();
109 list($fraction, $state) = $this->question->grade_response($response);
110 $pendingstep->set_fraction($fraction);
111 $pendingstep->set_state($state);
112 $pendingstep->set_new_response_summary($this->question->summarise_response($response));
113 }
114 return question_attempt::KEEP;
115 }
116
117 public function process_finish(question_attempt_pending_step $pendingstep) {
118 if ($this->qa->get_state()->is_finished()) {
119 return question_attempt::DISCARD;
120 }
121
122 $response = $this->qa->get_last_step()->get_qt_data();
123 if (!$this->question->is_gradable_response($response)) {
124 $pendingstep->set_state(question_state::$gaveup);
125
126 } else {
127 list($fraction, $state) = $this->question->grade_response($response);
128 $pendingstep->set_fraction($fraction);
129 $pendingstep->set_state($state);
130 }
131 $pendingstep->set_new_response_summary($this->question->summarise_response($response));
132 return question_attempt::KEEP;
133 }
134
135 public function process_save(question_attempt_pending_step $pendingstep) {
136 $status = parent::process_save($pendingstep);
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137 if ($status == question_attempt::KEEP &&
138 $pendingstep->get_state() == question_state::$complete) {
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139 $pendingstep->set_state(question_state::$todo);
140 }
141 return $status;
142 }
143}