MultipleAnswer::validateAnswers() - Code Metrics - Inspection of "Exercise: Add validation to enforce correct answer..." - chamilo/chamilo-lms - Measure and Improve Code Quality continuously with Scrutinizer

Passed

Push — 1.11.x ( 232aa6...d2c57d )

by Yannick

created 2025-03-23 08:30 UTC

MultipleAnswer::validateAnswers() B

↳ Parent: MultipleAnswer

Complexity

Conditions	9
Paths	32

Size

Total Lines	32
Code Lines	18

Duplication

Lines	0
Ratio	0 %

Importance

Changes

Metric	Value
eloc	18
c	0
b	0
f	0
dl	0
loc	32
rs	8.0555
cc	9
nc	32
nop	1

<?php

/* For licensing terms, see /license.txt */

use ChamiloSession as Session;

/**
 * Class MultipleAnswer.
 *
 * This class allows to instantiate an object of type MULTIPLE_ANSWER (MULTIPLE CHOICE, MULTIPLE ANSWER),
 * extending the class question
 *
 * @author Eric Marguin
 */
class MultipleAnswer extends Question
{
    public $typePicture = 'mcma.png';
    public $explanationLangVar = 'MultipleSelect';

    /**
     * Constructor.
     */
    public function __construct()
    {
        parent::__construct();
        $this->type = MULTIPLE_ANSWER;
        $this->isContent = $this->getIsContent();
    }

    /**
     * {@inheritdoc}
     */
    public function createAnswersForm($form)
    {
        $editorConfig = [
            'ToolbarSet' => 'TestProposedAnswer',
            'Width' => '100%',
            'Height' => '125',
        ];

        // The previous default value was 2. See task #1759.
        $nb_answers = isset($_POST['nb_answers']) ? $_POST['nb_answers'] : 4;
        $nb_answers += (isset($_POST['lessAnswers']) ? -1 : (isset($_POST['moreAnswers']) ? 1 : 0));

        $obj_ex = Session::read('objExercise');

        $form->addHeader(get_lang('Answers'));

        $html = '<table class="table table-striped table-hover">
            <thead>
                <tr>
                    <th width="10">'.get_lang('Number').'</th>
                    <th width="10">'.get_lang('True').'</th>
                    <th width="50%">'.get_lang('Answer').'</th>
                    <th width="50%">'.get_lang('Comment').'</th>
                    <th width="10">'.get_lang('Weighting').'</th>
                </tr>
            </thead>
            <tbody>';

        $form->addHtml($html);

        $defaults = [];
        $correct = 0;
        $answer = false;
        if (!empty($this->iid)) {
            $answer = new Answer($this->iid);
            $answer->read();
            if ($answer->nbrAnswers > 0 && !$form->isSubmitted()) {
                $nb_answers = $answer->nbrAnswers;
            }
        }

        $form->addElement('hidden', 'nb_answers');
        $boxes_names = [];

        if ($nb_answers < 1) {
            $nb_answers = 1;
            echo Display::return_message(get_lang('YouHaveToCreateAtLeastOneAnswer'));
        }

        for ($i = 1; $i <= $nb_answers; $i++) {
            $form->addHtml('<tr>');
            if (is_object($answer)) {
                $defaults['answer['.$i.']'] = $answer->answer[$i];
                $defaults['comment['.$i.']'] = $answer->comment[$i];
                $defaults['weighting['.$i.']'] = float_format($answer->weighting[$i], 1);
                $defaults['correct['.$i.']'] = $answer->correct[$i];
            } else {
                $defaults['answer[1]'] = get_lang('DefaultMultipleAnswer2');
                $defaults['comment[1]'] = get_lang('DefaultMultipleComment2');
                $defaults['correct[1]'] = true;
                $defaults['weighting[1]'] = 10;

                $defaults['answer[2]'] = get_lang('DefaultMultipleAnswer1');
                $defaults['comment[2]'] = get_lang('DefaultMultipleComment1');
                $defaults['correct[2]'] = false;
                $defaults['weighting[2]'] = -5;
            }
            $renderer = &$form->defaultRenderer();

            $renderer->setElementTemplate(
                '<td><!-- BEGIN error --><span class="form_error">{error}</span><!-- END error --><br/>{element}</td>',
                'correct['.$i.']'
            );
            $renderer->setElementTemplate(
                '<td><!-- BEGIN error --><span class="form_error">{error}</span><!-- END error --><br/>{element}</td>',
                'counter['.$i.']'
            );
            $renderer->setElementTemplate(
                '<td><!-- BEGIN error --><span class="form_error">{error}</span><!-- END error --><br/>{element}</td>',
                'answer['.$i.']'
            );
            $renderer->setElementTemplate(
                '<td><!-- BEGIN error --><span class="form_error">{error}</span><!-- END error --><br/>{element}</td>',
                'comment['.$i.']'
            );
            $renderer->setElementTemplate(
                '<td><!-- BEGIN error --><span class="form_error">{error}</span><!-- END error --><br/>{element}</td>',
                'weighting['.$i.']'
            );

            $answer_number = $form->addElement('text', 'counter['.$i.']', null, 'value="'.$i.'"');
            $answer_number->freeze();

            $form->addElement(
                'checkbox',
                'correct['.$i.']',
                null,
                null,
                'class="checkbox" style="margin-left: 0em;"'
            );
            $boxes_names[] = 'correct['.$i.']';

            $form->addHtmlEditor("answer[$i]", null, null, false, $editorConfig);
            $form->addRule('answer['.$i.']', get_lang('ThisFieldIsRequired'), 'required');

            $form->addHtmlEditor("comment[$i]", null, null, false, $editorConfig);

            $form->addElement('text', 'weighting['.$i.']', null, ['style' => "width: 60px;", 'value' => '0']);
            $form->addHtml('</tr>');
        }

        $form->addHtml('</tbody>');
        $form->addHtml('</table>');

        $form->add_multiple_required_rule(
            $boxes_names,
            get_lang('ChooseAtLeastOneCheckbox'),
            'multiple_required'
        );

        $buttonGroup = [];
        global $text;
        if ($obj_ex->edit_exercise_in_lp == true ||
            (empty($this->exerciseList) && empty($obj_ex->iid))
        ) {
            // setting the save button here and not in the question class.php
            $buttonGroup[] = $form->addButtonDelete(get_lang('LessAnswer'), 'lessAnswers', true);
            $buttonGroup[] = $form->addButtonCreate(get_lang('PlusAnswer'), 'moreAnswers', true);
            $buttonGroup[] = $form->addButton(
                'submitQuestion',
                $text,
                'check',
                'primary',
                'default',
                null,
                ['id' => 'submit-question'],
                true
            );
        }

        $form->addGroup($buttonGroup);

        $defaults['correct'] = $correct;

        if (!empty($this->iid)) {
            $form->setDefaults($defaults);
        } else {
            if ($this->isContent == 1) {
                $form->setDefaults($defaults);
            }
        }
        $form->setConstants(['nb_answers' => $nb_answers]);
    }

    /**
     * Validate question answers before saving.
     *
     * @param object $form The form object.
     * @return array|bool True if valid, or an array with errors if invalid.
     */
    public function validateAnswers($form)
    {
        $nb_answers = $form->getSubmitValue('nb_answers');
        $hasCorrectAnswer = false;
        $hasValidWeighting = false;
        $errors = [];
        $error_fields = [];

        for ($i = 1; $i <= $nb_answers; $i++) {
            $isCorrect = $form->getSubmitValue("correct[$i]");
            $weighting = trim($form->getSubmitValue("weighting[$i]") ?? '');

            if ($isCorrect) {
                $hasCorrectAnswer = true;

                if (is_numeric($weighting) && floatval($weighting) > 0) {
                    $hasValidWeighting = true;
                }
            }
        }

        if (!$hasCorrectAnswer) {
            $errors[] = get_lang('AtLeastOneCorrectAnswerRequired');
            $error_fields[] = "correct";
        }

        if ($hasCorrectAnswer && !$hasValidWeighting) {
            // Only show if at least one correct answer exists but its weighting is not valid
            $errors[] = get_lang('AtLeastOneCorrectAnswerMustHaveAPositiveScore');
        }

        return empty($errors) ? true : ['errors' => $errors, 'error_fields' => $error_fields];
    }

    /**
     * {@inheritdoc}
     */
    public function processAnswersCreation($form, $exercise)
    {
        $validationResult = $this->validateAnswers($form);
        if ($validationResult !== true) {
            Display::addFlash(Display::return_message(implode("<br>", $validationResult['errors']), 'error'));

            return;
        }

        $questionWeighting = 0;
        $objAnswer = new Answer($this->iid);
        $nb_answers = $form->getSubmitValue('nb_answers');

        for ($i = 1; $i <= $nb_answers; $i++) {
            $answer = trim(str_replace(['<p>', '</p>'], '', $form->getSubmitValue('answer['.$i.']')));
            $comment = trim(str_replace(['<p>', '</p>'], '', $form->getSubmitValue('comment['.$i.']')));
            $weighting = trim($form->getSubmitValue('weighting['.$i.']'));
            $goodAnswer = trim($form->getSubmitValue('correct['.$i.']'));

            if ($goodAnswer) {
                $weighting = abs($weighting);
            } else {
                $weighting = abs($weighting);
                $weighting = -$weighting;
            }
            if ($weighting > 0) {
                $questionWeighting += $weighting;
            }
            $objAnswer->createAnswer(
                $answer,
                $goodAnswer,
                $comment,
                $weighting,
                $i
            );
        }

        // saves the answers into the data base
        $objAnswer->save();

        // sets the total weighting of the question
        $this->updateWeighting($questionWeighting);
        $this->save($exercise);
    }

    /**
     * {@inheritdoc}
     */
    public function return_header(Exercise $exercise, $counter = null, $score = [])
    {
        $header = parent::return_header($exercise, $counter, $score);
        $header .= '<table class="'.$this->question_table_class.'"><tr>';

        $header .= '<th>'.get_lang('Choice').'</th>';

        if ($exercise->showExpectedChoiceColumn()) {
            $header .= '<th>'.get_lang('ExpectedChoice').'</th>';
        }

        $header .= '<th>'.get_lang('Answer').'</th>';
        if ($exercise->showExpectedChoice()) {
            $header .= '<th>'.get_lang('Status').'</th>';
        }

        if (false === $exercise->hideComment) {
            $header .= '<th>'.get_lang('Comment').'</th>';
        }

        $header .= '</tr>';

        return $header;
    }
}


1			<?php
2
3			/* For licensing terms, see /license.txt */
4
5			use ChamiloSession as Session;
6
7			/**
8			* Class MultipleAnswer.
9			*
10			* This class allows to instantiate an object of type MULTIPLE_ANSWER (MULTIPLE CHOICE, MULTIPLE ANSWER),
11			* extending the class question
12			*
13			* @author Eric Marguin
14			*/
15			class MultipleAnswer extends Question
16			{
17			public $typePicture = 'mcma.png';
18			public $explanationLangVar = 'MultipleSelect';
19
20			/**
21			* Constructor.
22			*/
23			public function __construct()
24			{
25			parent::__construct();
26			$this->type = MULTIPLE_ANSWER;
27			$this->isContent = $this->getIsContent();
28			}
29
30			/**
31			* {@inheritdoc}
32			*/
33			public function createAnswersForm($form)
34			{
35			$editorConfig = [
36			'ToolbarSet' => 'TestProposedAnswer',
37			'Width' => '100%',
38			'Height' => '125',
39			];
40
41			// The previous default value was 2. See task #1759.
42			$nb_answers = isset($_POST['nb_answers']) ? $_POST['nb_answers'] : 4;
43			$nb_answers += (isset($_POST['lessAnswers']) ? -1 : (isset($_POST['moreAnswers']) ? 1 : 0));
44
45			$obj_ex = Session::read('objExercise');
46
47			$form->addHeader(get_lang('Answers'));
48
49			$html = '<table class="table table-striped table-hover">
50			<thead>
51			<tr>
52			<th width="10">'.get_lang('Number').'</th>
53			<th width="10">'.get_lang('True').'</th>
54			<th width="50%">'.get_lang('Answer').'</th>
55			<th width="50%">'.get_lang('Comment').'</th>
56			<th width="10">'.get_lang('Weighting').'</th>
57			</tr>
58			</thead>
59			<tbody>';
60
61			$form->addHtml($html);
62
63			$defaults = [];
64			$correct = 0;
65			$answer = false;
66			if (!empty($this->iid)) {
67			$answer = new Answer($this->iid);
68			$answer->read();
69			if ($answer->nbrAnswers > 0 && !$form->isSubmitted()) {
70			$nb_answers = $answer->nbrAnswers;
71			}
72			}
73
74			$form->addElement('hidden', 'nb_answers');
75			$boxes_names = [];
76
77			if ($nb_answers < 1) {
78			$nb_answers = 1;
79			echo Display::return_message(get_lang('YouHaveToCreateAtLeastOneAnswer'));
80			}
81
82			for ($i = 1; $i <= $nb_answers; $i++) {
83			$form->addHtml('<tr>');
84			if (is_object($answer)) {
85			$defaults['answer['.$i.']'] = $answer->answer[$i];
86			$defaults['comment['.$i.']'] = $answer->comment[$i];
87			$defaults['weighting['.$i.']'] = float_format($answer->weighting[$i], 1);
88			$defaults['correct['.$i.']'] = $answer->correct[$i];
89			} else {
90			$defaults['answer[1]'] = get_lang('DefaultMultipleAnswer2');
91			$defaults['comment[1]'] = get_lang('DefaultMultipleComment2');
92			$defaults['correct[1]'] = true;
93			$defaults['weighting[1]'] = 10;
94
95			$defaults['answer[2]'] = get_lang('DefaultMultipleAnswer1');
96			$defaults['comment[2]'] = get_lang('DefaultMultipleComment1');
97			$defaults['correct[2]'] = false;
98			$defaults['weighting[2]'] = -5;
99			}
100			$renderer = &$form->defaultRenderer();
101
102			$renderer->setElementTemplate(
103			'<td><!-- BEGIN error --><span class="form_error">{error}</span><!-- END error --><br/>{element}</td>',
104			'correct['.$i.']'
105			);
106			$renderer->setElementTemplate(
107			'<td><!-- BEGIN error --><span class="form_error">{error}</span><!-- END error --><br/>{element}</td>',
108			'counter['.$i.']'
109			);
110			$renderer->setElementTemplate(
111			'<td><!-- BEGIN error --><span class="form_error">{error}</span><!-- END error --><br/>{element}</td>',
112			'answer['.$i.']'
113			);
114			$renderer->setElementTemplate(
115			'<td><!-- BEGIN error --><span class="form_error">{error}</span><!-- END error --><br/>{element}</td>',
116			'comment['.$i.']'
117			);
118			$renderer->setElementTemplate(
119			'<td><!-- BEGIN error --><span class="form_error">{error}</span><!-- END error --><br/>{element}</td>',
120			'weighting['.$i.']'
121			);
122
123			$answer_number = $form->addElement('text', 'counter['.$i.']', null, 'value="'.$i.'"');
124			$answer_number->freeze();
125
126			$form->addElement(
127			'checkbox',
128			'correct['.$i.']',
129			null,
130			null,
131			'class="checkbox" style="margin-left: 0em;"'
132			);
133			$boxes_names[] = 'correct['.$i.']';
134
135			$form->addHtmlEditor("answer[$i]", null, null, false, $editorConfig);
136			$form->addRule('answer['.$i.']', get_lang('ThisFieldIsRequired'), 'required');
137
138			$form->addHtmlEditor("comment[$i]", null, null, false, $editorConfig);
139
140			$form->addElement('text', 'weighting['.$i.']', null, ['style' => "width: 60px;", 'value' => '0']);
141			$form->addHtml('</tr>');
142			}
143
144			$form->addHtml('</tbody>');
145			$form->addHtml('</table>');
146
147			$form->add_multiple_required_rule(
148			$boxes_names,
149			get_lang('ChooseAtLeastOneCheckbox'),
150			'multiple_required'
151			);
152
153			$buttonGroup = [];
154			global $text;
155			if ($obj_ex->edit_exercise_in_lp == true \|\|
156			(empty($this->exerciseList) && empty($obj_ex->iid))
157			) {
158			// setting the save button here and not in the question class.php
159			$buttonGroup[] = $form->addButtonDelete(get_lang('LessAnswer'), 'lessAnswers', true);
160			$buttonGroup[] = $form->addButtonCreate(get_lang('PlusAnswer'), 'moreAnswers', true);
161			$buttonGroup[] = $form->addButton(
162			'submitQuestion',
163			$text,
164			'check',
165			'primary',
166			'default',
167			null,
168			['id' => 'submit-question'],
169			true
170			);
171			}
172
173			$form->addGroup($buttonGroup);
174
175			$defaults['correct'] = $correct;
176
177			if (!empty($this->iid)) {
178			$form->setDefaults($defaults);
179			} else {
180			if ($this->isContent == 1) {
181			$form->setDefaults($defaults);
182			}
183			}
184			$form->setConstants(['nb_answers' => $nb_answers]);
185			}
186
187			/**
188			* Validate question answers before saving.
189			*
190			* @param object $form The form object.
191			* @return array\|bool True if valid, or an array with errors if invalid.
192			*/
193			public function validateAnswers($form)
194			{
195			$nb_answers = $form->getSubmitValue('nb_answers');
196			$hasCorrectAnswer = false;
197			$hasValidWeighting = false;
198			$errors = [];
199			$error_fields = [];
200
201			for ($i = 1; $i <= $nb_answers; $i++) {
202			$isCorrect = $form->getSubmitValue("correct[$i]");
203			$weighting = trim($form->getSubmitValue("weighting[$i]") ?? '');
204
205			if ($isCorrect) {
206			$hasCorrectAnswer = true;
207
208			if (is_numeric($weighting) && floatval($weighting) > 0) {
209			$hasValidWeighting = true;
210			}
211			}
212			}
213
214			if (!$hasCorrectAnswer) {
215			$errors[] = get_lang('AtLeastOneCorrectAnswerRequired');
216			$error_fields[] = "correct";
217			}
218
219			if ($hasCorrectAnswer && !$hasValidWeighting) {
220			// Only show if at least one correct answer exists but its weighting is not valid
221			$errors[] = get_lang('AtLeastOneCorrectAnswerMustHaveAPositiveScore');
222			}
223
224			return empty($errors) ? true : ['errors' => $errors, 'error_fields' => $error_fields];
225			}
226
227			/**
228			* {@inheritdoc}
229			*/
230			public function processAnswersCreation($form, $exercise)
231			{
232			$validationResult = $this->validateAnswers($form);
233			if ($validationResult !== true) {
234			Display::addFlash(Display::return_message(implode("<br>", $validationResult['errors']), 'error'));
235
236			return;
237			}
238
239			$questionWeighting = 0;
240			$objAnswer = new Answer($this->iid);
241			$nb_answers = $form->getSubmitValue('nb_answers');
242
243			for ($i = 1; $i <= $nb_answers; $i++) {
244			$answer = trim(str_replace(['<p>', '</p>'], '', $form->getSubmitValue('answer['.$i.']')));
245			$comment = trim(str_replace(['<p>', '</p>'], '', $form->getSubmitValue('comment['.$i.']')));
246			$weighting = trim($form->getSubmitValue('weighting['.$i.']'));
247			$goodAnswer = trim($form->getSubmitValue('correct['.$i.']'));
248
249			if ($goodAnswer) {
250			$weighting = abs($weighting);
251			} else {
252			$weighting = abs($weighting);
253			$weighting = -$weighting;
254			}
255			if ($weighting > 0) {
256			$questionWeighting += $weighting;
257			}
258			$objAnswer->createAnswer(
259			$answer,
260			$goodAnswer,
261			$comment,
262			$weighting,
263			$i
264			);
265			}
266
267			// saves the answers into the data base
268			$objAnswer->save();
269
270			// sets the total weighting of the question
271			$this->updateWeighting($questionWeighting);
272			$this->save($exercise);
273			}
274
275			/**
276			* {@inheritdoc}
277			*/
278			public function return_header(Exercise $exercise, $counter = null, $score = [])
279			{
280			$header = parent::return_header($exercise, $counter, $score);
281			$header .= '<table class="'.$this->question_table_class.'"><tr>';
282
283			$header .= '<th>'.get_lang('Choice').'</th>';
284
285			if ($exercise->showExpectedChoiceColumn()) {
286			$header .= '<th>'.get_lang('ExpectedChoice').'</th>';
287			}
288
289			$header .= '<th>'.get_lang('Answer').'</th>';
290			if ($exercise->showExpectedChoice()) {
291			$header .= '<th>'.get_lang('Status').'</th>';
292			}
293
294			if (false === $exercise->hideComment) {
295			$header .= '<th>'.get_lang('Comment').'</th>';
296			}
297
298			$header .= '</tr>';
299
300			return $header;
301			}
302			}
303

chamilo / chamilo-lms

Push — 1.11.x ( 232aa6...d2c57d )

MultipleAnswer::validateAnswers() B

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