class TrueFalseResponse in Quiz 7.6

Extension of QuizQuestionResponse

Hierarchy

• class \QuizQuestionResponse
  • class \TrueFalseResponse

1 string reference to 'TrueFalseResponse'

truefalse_quiz_question_info in question_types/truefalse/truefalse.module

Implements hook_quiz_question_info().

File

question_types/truefalse/truefalse.classes.inc, line 202

Defines the classes necessary for a True/False quiz.

class TrueFalseResponse extends QuizQuestionResponse {

  /**
   * Constructor
   */
  public function __construct($result_id, stdClass $question_node, $answer = NULL) {
    parent::__construct($result_id, $question_node, $answer);
    if (!isset($answer)) {

      // Get from DB
      $r = $this
        ->getUserAnswer();
      if (!empty($r)) {
        $this->answer = $r->answer;
        $this->score = $r->score;
      }
    }
    else {

      // Load from input
      $this->answer = $answer;
    }
  }

  /**
   * Implementation of save
   *
   * @see QuizQuestionResponse#save()
   */
  public function save() {
    db_insert('quiz_truefalse_user_answers')
      ->fields(array(
      'question_nid' => $this->question->nid,
      'question_vid' => $this->question->vid,
      'result_id' => $this->result_id,
      'answer' => (int) $this->answer,
      'score' => (int) $this
        ->getScore(),
    ))
      ->execute();
  }

  /**
   * Implementation of delete
   *
   * @see QuizQuestionResponse#delete()
   */
  public function delete() {
    db_delete('quiz_truefalse_user_answers')
      ->condition('question_nid', $this->question->nid)
      ->condition('question_vid', $this->question->vid)
      ->condition('result_id', $this->result_id)
      ->execute();
  }

  /**
   * Implementation of score
   *
   * @see QuizQuestionResponse#score()
   */
  public function score() {
    $tfQuestion = new TrueFalseQuestion($this->question);
    return $this
      ->getResponse() == $tfQuestion
      ->getCorrectAnswer() ? 1 : 0;
  }

  /**
   * Implementation of getResponse
   *
   * @see QuizQuestionResponse#getResponse()
   */
  public function getResponse() {
    return $this->answer;
  }

  /**
   * Implementation of getCorrectAnswer
   */
  public function getUserAnswer() {
    return db_query('SELECT answer, score FROM {quiz_truefalse_user_answers} WHERE question_vid = :qvid AND result_id = :rid', array(
      ':qvid' => $this->question->vid,
      ':rid' => $this->result_id,
    ))
      ->fetch();
  }

  /**
   * Implementation of getReportFormResponse
   */
  public function getFeedbackValues() {
    $answer = $this->question->answers[0]['answer'];
    $correct_answer = $this->question->correct_answer;
    $data = array();
    $data[] = array(
      'choice' => t('True'),
      'attempt' => $answer ? quiz_icon('selected') : '',
      'correct' => $answer == 1 ? quiz_icon($correct_answer ? 'correct' : 'incorrect') : '',
      'score' => intval($correct_answer == 1 && $answer == 1),
      'answer_feedback' => '',
      'solution' => $correct_answer == 1 ? quiz_icon('should') : '',
    );
    $data[] = array(
      'choice' => t('False'),
      'attempt' => !$answer ? quiz_icon('selected') : '',
      'correct' => $answer == 0 ? quiz_icon(!$correct_answer ? 'correct' : 'incorrect') : '',
      'score' => intval($correct_answer == 0 && $answer == 0),
      'answer_feedback' => '',
      'solution' => $correct_answer == 0 ? quiz_icon('should') : '',
    );
    return $data;
  }

}

Members

Name	Modifiers	Type	Description	Overrides
QuizQuestionResponse::$answer	protected	property
QuizQuestionResponse::$evaluated	protected	property
QuizQuestionResponse::$is_correct	protected	property
QuizQuestionResponse::$is_doubtful	public	property
QuizQuestionResponse::$is_skipped	public	property
QuizQuestionResponse::$question	public	property
QuizQuestionResponse::$quizQuestion	public	property
QuizQuestionResponse::$result_id	protected	property
QuizQuestionResponse::$score	protected	property		8
QuizQuestionResponse::canReview	public	function	Can the quiz taker view the requested review?
QuizQuestionResponse::getFeedback	public	function	Returns a renderable array of question feedback.
QuizQuestionResponse::getFormat	protected	function	Utility function that returns the format of the node body
QuizQuestionResponse::getMaxScore	public	function	Returns stored max score if it exists, if not the max score is calculated and returned.
QuizQuestionResponse::getQuizQuestion		function
QuizQuestionResponse::getReport	public	function	Get data suitable for reporting a user's score on the question. This expects an object with the following attributes:
QuizQuestionResponse::getReportForm	public	function	Creates the report form for the admin pages, and for when a user gets feedback after answering questions.	2
QuizQuestionResponse::getReportFormAnswerFeedback	public	function		2
QuizQuestionResponse::getReportFormScore	public	function	Implementation of getReportFormScore
QuizQuestionResponse::getReportFormSubmit	public	function	Get the submit function for the reportForm	2
QuizQuestionResponse::getReportFormValidate	public	function	Get the validate function for the reportForm	2
QuizQuestionResponse::getScore		function	Returns stored score if it exists, if not the score is calculated and returned.
QuizQuestionResponse::isCorrect		function	Check to see if the answer is marked as correct.	2
QuizQuestionResponse::isEvaluated	public	function	Indicate whether the response has been evaluated (scored) yet. Questions that require human scoring (e.g. essays) may need to manually toggle this.
QuizQuestionResponse::isValid	public	function	Validates response from a quiz taker. If the response isn't valid the quiz taker won't be allowed to proceed.
QuizQuestionResponse::refreshQuestionNode	public	function	Used to refresh this instances question node in case drupal has changed it.
QuizQuestionResponse::setResultId	public	function	Set the target result ID for this Question response.
QuizQuestionResponse::toBareObject		function	Represent the response as a stdClass object.
TrueFalseResponse::delete	public	function	Implementation of delete Overrides QuizQuestionResponse::delete
TrueFalseResponse::getFeedbackValues	public	function	Implementation of getReportFormResponse Overrides QuizQuestionResponse::getFeedbackValues
TrueFalseResponse::getResponse	public	function	Implementation of getResponse Overrides QuizQuestionResponse::getResponse
TrueFalseResponse::getUserAnswer	public	function	Implementation of getCorrectAnswer
TrueFalseResponse::save	public	function	Implementation of save Overrides QuizQuestionResponse::save
TrueFalseResponse::score	public	function	Implementation of score Overrides QuizQuestionResponse::score
TrueFalseResponse::__construct	public	function	Constructor Overrides QuizQuestionResponse::__construct