weekly release 3.10.4+
[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
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49 public function can_finish_during_attempt() {
50 return true;
51 }
52
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53 public function get_min_fraction() {
54 return $this->question->get_min_fraction();
55 }
56
57 public function get_expected_data() {
58 if ($this->qa->get_state()->is_active()) {
59 return array(
60 'submit' => PARAM_BOOL,
61 );
62 }
63 return parent::get_expected_data();
64 }
65
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66 public function get_state_string($showcorrectness) {
67 $state = $this->qa->get_state();
68 if ($state == question_state::$todo) {
69 return get_string('notcomplete', 'qbehaviour_immediatefeedback');
70 } else {
71 return parent::get_state_string($showcorrectness);
72 }
73 }
74
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75 public function get_right_answer_summary() {
76 return $this->question->get_right_answer_summary();
77 }
78
79 public function process_action(question_attempt_pending_step $pendingstep) {
80 if ($pendingstep->has_behaviour_var('comment')) {
81 return $this->process_comment($pendingstep);
82 } else if ($pendingstep->has_behaviour_var('submit')) {
83 return $this->process_submit($pendingstep);
84 } else if ($pendingstep->has_behaviour_var('finish')) {
85 return $this->process_finish($pendingstep);
86 } else {
87 return $this->process_save($pendingstep);
88 }
89 }
90
91 public function summarise_action(question_attempt_step $step) {
92 if ($step->has_behaviour_var('comment')) {
93 return $this->summarise_manual_comment($step);
94 } else if ($step->has_behaviour_var('finish')) {
95 return $this->summarise_finish($step);
96 } else if ($step->has_behaviour_var('submit')) {
97 return $this->summarise_submit($step);
98 } else {
99 return $this->summarise_save($step);
100 }
101 }
102
103 public function process_submit(question_attempt_pending_step $pendingstep) {
104 if ($this->qa->get_state()->is_finished()) {
105 return question_attempt::DISCARD;
106 }
107
108 if (!$this->is_complete_response($pendingstep)) {
109 $pendingstep->set_state(question_state::$invalid);
110
111 } else {
112 $response = $pendingstep->get_qt_data();
113 list($fraction, $state) = $this->question->grade_response($response);
114 $pendingstep->set_fraction($fraction);
115 $pendingstep->set_state($state);
116 $pendingstep->set_new_response_summary($this->question->summarise_response($response));
117 }
118 return question_attempt::KEEP;
119 }
120
121 public function process_finish(question_attempt_pending_step $pendingstep) {
122 if ($this->qa->get_state()->is_finished()) {
123 return question_attempt::DISCARD;
124 }
125
126 $response = $this->qa->get_last_step()->get_qt_data();
127 if (!$this->question->is_gradable_response($response)) {
128 $pendingstep->set_state(question_state::$gaveup);
129
130 } else {
131 list($fraction, $state) = $this->question->grade_response($response);
132 $pendingstep->set_fraction($fraction);
133 $pendingstep->set_state($state);
134 }
135 $pendingstep->set_new_response_summary($this->question->summarise_response($response));
136 return question_attempt::KEEP;
137 }
138
139 public function process_save(question_attempt_pending_step $pendingstep) {
140 $status = parent::process_save($pendingstep);
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141 if ($status == question_attempt::KEEP &&
142 $pendingstep->get_state() == question_state::$complete) {
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143 $pendingstep->set_state(question_state::$todo);
144 }
145 return $status;
146 }
147}