long_answer.classes.inc in Quiz 6.4
Same filename and directory in other branches
- 6.6 question_types/long_answer/long_answer.classes.inc
- 6.3 question_types/long_answer/long_answer.classes.inc
- 6.5 question_types/long_answer/long_answer.classes.inc
- 7.6 question_types/long_answer/long_answer.classes.inc
- 7 question_types/long_answer/long_answer.classes.inc
- 7.4 question_types/long_answer/long_answer.classes.inc
- 7.5 question_types/long_answer/long_answer.classes.inc
Long answer classes.
Classes modelling the long answer question and the long answer question response
File
question_types/long_answer/long_answer.classes.incView source
<?php
/**
* Long answer classes.
*
* @file
* Classes modelling the long answer question and the long answer question response
*/
/**
* Extension of QuizQuestion.
*/
class LongAnswerQuestion extends QuizQuestion {
/**
* Implementation of saveNodeProperties
*
* @see QuizQuestion#saveNodeProperties($is_new)
*/
public function saveNodeProperties($is_new = FALSE) {
if (!isset($this->node->feedback)) {
$this->node->feedback = '';
}
if ($is_new || $this->node->revision == 1) {
$sql = "INSERT INTO {quiz_long_answer_node_properties}\n (nid, vid, rubric)\n VALUES (%d, %d, '%s')";
db_query($sql, $this->node->nid, $this->node->vid, $this->node->rubric);
}
else {
$sql = "UPDATE {quiz_long_answer_node_properties}\n SET rubric = '%s'\n WHERE nid = %d AND vid = %d";
db_query($sql, $this->node->rubric, $this->node->nid, $this->node->vid);
}
}
/**
* Implementation of validateNode
*
* @see QuizQuestion#validateNode($form)
*/
public function validateNode(array &$form) {
}
/**
* Implementation of delete
*
* @see QuizQuestion#delete($only_this_version)
*/
public function delete($only_this_version = FALSE) {
if ($only_this_version) {
db_query('DELETE FROM {quiz_long_answer_user_answers} WHERE question_nid = %d AND question_vid = %d', $this->node->nid, $this->node->vid);
db_query('DELETE FROM {quiz_long_answer_node_properties} WHERE nid = %d AND vid = %d', $this->node->nid, $this->node->vid);
}
else {
db_query('DELETE FROM {quiz_long_answer_node_properties} WHERE nid = %d', $this->node->nid);
db_query('DELETE FROM {quiz_long_answer_user_answers} WHERE question_nid = %d', $this->node->nid);
}
parent::delete($only_this_version);
}
/**
* Implementation of getNodeProperties
*
* @see QuizQuestion#getNodeProperties()
*/
public function getNodeProperties() {
if (isset($this->nodeProperties)) {
return $this->nodeProperties;
}
$props = parent::getNodeProperties();
$sql = 'SELECT rubric
FROM {quiz_long_answer_node_properties}
WHERE nid = %d AND vid = %d';
$res = db_query($sql, $this->node->nid, $this->node->vid);
$res_a = db_fetch_array($res);
if (is_array($res_a)) {
$props = array_merge($props, $res_a);
}
$this->nodeProperties = $props;
return $props;
}
/**
* Implementation of getNodeView
*
* @see QuizQuestion#getNodeView()
*/
public function getNodeView() {
$content = parent::getNodeView();
if ($this
->viewCanRevealCorrect()) {
$rubric_html = check_markup($this->node->rubric, $this->node->format, FALSE);
$content['answers'] = array(
'#type' => 'item',
'#title' => t('Rubric'),
'#value' => '<div class="quiz-solution">' . $rubric_html . '</div>',
'#weight' => 1,
);
}
else {
$content['answers'] = array(
'#type' => 'markup',
'#value' => '<div class="quiz-answer-hidden">Answer hidden</div>',
'#weight' => 1,
);
}
return $content;
}
/**
* Implementation of getAnweringForm
*
* @see QuizQuestion#getAnsweringForm($form_state, $rid)
*/
public function getAnsweringForm(array $form_state = NULL, $rid) {
$form = parent::getAnsweringForm($form_state, $rid);
$form['#theme'] = 'long_answer_answering_form';
$form['tries'] = array(
'#type' => 'textarea',
'#title' => t('Answer'),
'#description' => t('Enter your answer here. If you need more space, click on the grey bar at the bottom of this area and drag it down.'),
'#rows' => 15,
'#cols' => 60,
'#required' => FALSE,
);
if (isset($rid)) {
$response = new LongAnswerResponse($rid, $this->node);
$form['tries']['#default_value'] = $response
->getResponse();
}
return $form;
}
/**
* Implementation of getCreationForm
*
* @see QuizQuestion#getCreationForm($form_state)
*/
public function getCreationForm(array $form_state = NULL) {
$form['rubric'] = array(
'#type' => 'textarea',
'#title' => t('Rubric'),
'#description' => t('Specify the criteria for grading the response.'),
'#default_value' => isset($this->node->rubric) ? $this->node->rubric : '',
'#size' => 60,
'#maxlength' => 512,
'#required' => FALSE,
);
return $form;
}
/**
* Implementation of getMaximumScore
*
* @see QuizQuestion#getMaximumScore()
*/
public function getMaximumScore() {
return 10;
}
}
/**
* Extension of QuizQuestionResponse
*/
class LongAnswerResponse extends QuizQuestionResponse {
/**
* Get all scores that have not yet been evaluated.
*
* @param $count
* Number of items to return (default: 50).
* @param $offset
* Where in the results we should start (default: 0).
*
* @return
* Array of objects describing unanswered questions. Each object will have result_id, question_nid, and question_vid.
*/
public static function fetchAllUnscoredAnswers($count = 50, $offset = 0) {
$sql = 'SELECT a.result_id, a.question_nid, a.question_vid, a.answer_feedback, r.title, n.time_end, n.time_start, n.uid
FROM {quiz_long_answer_user_answers} AS a
INNER JOIN {node_revisions} AS r ON a.question_vid = r.vid
INNER JOIN {quiz_node_results} AS n ON a.result_id = n.result_id
WHERE a.is_evaluated = 0';
$results = db_query_range($sql, $offset, $count);
$unscored = array();
if ($results) {
while ($row = db_fetch_object($results)) {
$unscored[] = $row;
}
}
return $unscored;
}
/**
* Given a quiz, return a list of all of the unscored answers.
*
* @param $nid
* Node ID for the quiz to check.
* @param $vid
* Version ID for the quiz to check.
* @param $count
* Number of items to return (default: 50).
* @param $offset
* Where in the results we should start (default: 0).
*
* @return
* Indexed array of result IDs that need to be scored.
*/
public static function fetchUnscoredAnswersByQuestion($nid, $vid, $count = 50, $offset = 0) {
$results = db_query_range('SELECT result_id
FROM {quiz_long_answer_user_answers}
WHERE is_evaluated = 0
AND question_nid = %d
AND question_vid = %d', $nid, $vid, $offset, $count);
$unscored = array();
foreach (db_fetch_object($results) as $row) {
$unscored[] = $row->result_id;
}
return $unscored;
}
/**
* ID of the answer.
*/
protected $answer_id = 0;
/**
* Constructor
*/
public function __construct($result_id, stdClass $question_node, $answer = NULL) {
parent::__construct($result_id, $question_node, $answer);
if (!isset($answer)) {
// Question has been answered allready. We fetch the answer data from the database.
$sql = "SELECT answer_id, answer, is_evaluated, score, question_vid, question_nid, result_id, answer_feedback\n FROM {quiz_long_answer_user_answers}\n WHERE question_nid = %d AND question_vid = %d AND result_id = %d";
$r = db_fetch_object(db_query($sql, $question_node->nid, $question_node->vid, $result_id));
if (!empty($r)) {
$this->answer = $r->answer;
$this->score = $r->score;
$this->evaluated = $r->is_evaluated;
$this->answer_id = $r->answer_id;
$this->answer_feedback = $r->answer_feedback;
}
}
else {
$this->answer = $answer;
$this->evaluated = FALSE;
}
}
/**
* Implementation of isValid
*
* @see QuizQuestionResponse#isValid()
*/
public function isValid() {
if (trim($this->answer) == '') {
return t('You must provide an answer');
}
return TRUE;
}
/**
* Implementation of save
*
* @see QuizQuestionResponse#save()
*/
public function save() {
$sql = "INSERT INTO {quiz_long_answer_user_answers}\n (answer, question_nid, question_vid, result_id)\n VALUES ('%s', %d, %d, %d)";
db_query($sql, $this->answer, $this->question->nid, $this->question->vid, $this->rid);
$this->answer_id = db_last_insert_id('quiz_long_answer_user_answers', 'answer_id');
}
/**
* Implementation of save
*
* @see QuizQuestionResponse#delete()
*/
public function delete() {
$sql = 'DELETE FROM {quiz_long_answer_user_answers}
WHERE question_nid = %d AND question_vid = %d AND result_id = %d';
db_query($sql, $this->question->nid, $this->question->vid, $this->rid);
}
/**
* Implementation of score
*
* @see QuizQuestionResponse#score()
*/
public function score() {
$sql = "SELECT score\n FROM {quiz_long_answer_user_answers}\n WHERE result_id = %d AND question_vid = %d";
$score = (int) db_result(db_query($sql, $this->rid, $this->question->vid));
return $score;
}
/**
* Implementation of getResponse
*
* @see QuizQuestionResponse#getResponse()
*/
public function getResponse() {
return $this->answer;
}
/**
* Implementation of getReportFormResponse
*
* @see QuizQuestionResponse#getReportFormResponse($showpoints, $showfeedback, $allow_scoring)
*/
public function getReportFormResponse($showpoints = TRUE, $showfeedback = TRUE, $allow_scoring = FALSE) {
$form = array();
$form['#theme'] = 'long_answer_response_form';
if ($this->question && !empty($this->question->answers)) {
$answer = (object) current($this->question->answers);
}
else {
return $form;
}
$form['answer'] = array(
'#type' => 'markup',
'#value' => check_markup($answer->answer),
);
if ($answer->is_evaluated == 1) {
// Show feedback, if any.
if ($showfeedback && !empty($answer->feedback)) {
$feedback = check_markup($answer->feedback);
}
}
else {
$feedback = t('This answer has not yet been scored.') . '<br/>' . t('Until the answer is scored, the total score will not be correct.');
}
if ($allow_scoring) {
$form['rubric'] = array(
'#type' => 'item',
'#title' => t('Rubric'),
'#value' => check_markup($this->question->rubric, variable_get('long_answer_markup_filter', FILTER_FORMAT_DEFAULT), FALSE),
);
}
if (!$allow_scoring && !empty($this->answer_feedback)) {
$form['answer_feedback'] = array(
'#title' => t('Feedback'),
'#type' => 'item',
'#value' => '<span class="quiz_answer_feedback">' . $this->answer_feedback . '</span>',
);
}
if (!empty($feedback)) {
$form['feedback'] = array(
'#type' => 'markup',
'#value' => '<span class="quiz_answer_feedback">' . $feedback . '</span>',
);
}
return $form;
}
/**
* Implementation of getReportFormScore
*
* @see QuizQuestionResponse#getReportFormScore($showpoints, $showfeedback, $allow_scoring)
*/
public function getReportFormScore($showfeedback = TRUE, $showpoints = TRUE, $allow_scoring = FALSE) {
// The score will be shown as a questionmark if the question haven't been scored already
$score = $this
->isEvaluated() ? $this
->getScore() : '?';
// We show a textfield if the quiz shall be scored. Markup otherwise
if (quiz_access_to_score() && $allow_scoring) {
return array(
'#type' => 'textfield',
'#default_value' => $score,
'#size' => 3,
'#maxlength' => 3,
'#attributes' => array(
'class' => 'quiz-report-score',
),
);
}
else {
return array(
'#type' => 'markup',
'#value' => $score,
);
}
}
public function getReportFormAnswerFeedback($showpoints = TRUE, $showfeedback = TRUE, $allow_scoring = FALSE) {
if (quiz_access_to_score() && $allow_scoring) {
return array(
'#title' => t('Enter feedback'),
'#type' => 'textarea',
'#default_value' => $this->answer_feedback,
'#attributes' => array(
'class' => 'quiz-report-score',
),
);
}
return FALSE;
}
/**
* Implementation of getReportFormSubmit
*
* @see QuizQuestionResponse#getReportFormSubmit($showfeedback, $showpoints, $allow_scoring)
*/
public function getReportFormSubmit($showfeedback = TRUE, $showpoints = TRUE, $allow_scoring = FALSE) {
return $allow_scoring ? 'long_answer_report_submit' : FALSE;
}
/**
* Implementation of getReportFormValidate
*
* @see QuizQuestionResponse#getReportFormValidate($showfeedback, $showpoints, $allow_scoring)
*/
public function getReportFormValidate($showfeedback = TRUE, $showpoints = TRUE, $allow_scoring = FALSE) {
return $allow_scoring ? 'long_answer_report_validate' : FALSE;
}
}
Classes
Name![]() |
Description |
---|---|
LongAnswerQuestion | Extension of QuizQuestion. |
LongAnswerResponse | Extension of QuizQuestionResponse |