class QuizfileuploadQuestion in Quiz File Upload 7.4

Extension of QuizQuestion.

Hierarchy

• class \QuizfileuploadQuestion extends \QuizQuestion

1 string reference to 'QuizfileuploadQuestion'

quizfileupload_quiz_question_info in ./quizfileupload.module

Implements hook_quiz_question_info().

File

./quizfileupload.classes.inc, line 20

The main classes for the quizfileupload question type.

class QuizfileuploadQuestion extends QuizQuestion {

  // Constants for answer matching options
  const ANSWER_MATCH = 0;
  const ANSWER_MANUAL = 1;

  /**
   * Implements saveNodeProperties().
   *
   * @see QuizQuestion#saveNodeProperties($is_new)
   */
  public function saveNodeProperties($is_new = FALSE) {
    $is_new = $is_new || $this->node->revision == 1;
    if ($is_new) {
      db_insert('quiz_fileupload_node_properties')
        ->fields(array(
        'nid' => $this->node->nid,
        'vid' => $this->node->vid,
        'filetypes' => $this->node->filetypes,
        'correct_answer_evaluation' => $this->node->correct_answer_evaluation,
      ))
        ->execute();
    }
    else {
      db_update('quiz_fileupload_node_properties')
        ->fields(array(
        'filetypes' => $this->node->filetypes,
        'correct_answer_evaluation' => $this->node->correct_answer_evaluation,
      ))
        ->condition('nid', $this->node->nid)
        ->condition('vid', $this->node->vid)
        ->execute();
    }
  }

  /**
   * Implements validateNode().
   *
   * @see QuizQuestion#validateNode($form)
   */
  public function validateNode(array &$form) {

    //no validation required
  }

  /**
   * Implements delete().
   *
   * @see QuizQuestion#delete($only_this_version)
   */
  public function delete($only_this_version = FALSE) {
    if ($only_this_version) {
      db_delete('quiz_fileupload_node_properties')
        ->condition('question_nid', $this->node->nid)
        ->condition('question_vid', $this->node->vid)
        ->execute();
      db_delete('quiz_fileupload_user_answers')
        ->condition('nid', $this->node->nid)
        ->condition('vid', $this->node->vid)
        ->execute();
    }
    else {
      db_delete('quiz_fileupload_node_properties')
        ->condition('nid', $this->node->nid)
        ->execute();
      db_delete('quiz_fileupload_user_answers')
        ->condition('question_nid', $this->node->nid)
        ->execute();
    }
    parent::delete($only_this_version);
  }

  /**
   * Implements getNodeProperties().
   *
   * @see QuizQuestion#getNodeProperties()
   */
  public function getNodeProperties() {
    if (isset($this->nodeProperties)) {
      return $this->nodeProperties;
    }
    $props = parent::getNodeProperties();

    // Load the properties
    $res_a = db_query('SELECT filetypes, correct_answer_evaluation FROM {quiz_fileupload_node_properties} WHERE nid = :nid AND vid = :vid', array(
      ':nid' => $this->node->nid,
      ':vid' => $this->node->vid,
    ))
      ->fetchAssoc();
    if (is_array($res_a)) {
      $props = array_merge($props, $res_a);
    }
    $this->nodeProperties = $props;
    return $props;
  }

  /**
   * Implements getNodeView().
   *
   * @see QuizQuestion#getNodeView()
   */
  public function getNodeView() {
    $content = parent::getNodeView();
    $content['filetypes'] = array(
      '#type' => 'markup',
      '#value' => '<pre>' . check_plain($this->node->filetypes) . '</pre>',
    );
    return $content;
  }

  /**
   * Implements getAnsweringForm().
   *
   * @see QuizQuestion#getAnsweringForm($form_state, $rid)
   */
  public function getAnsweringForm(array $form_state = NULL, $rid) {
    $form = parent::getAnsweringForm($form_state, $rid);
    $fid = db_query('SELECT qf.fid
      FROM {quiz_fileupload_user_answers} qf
      WHERE question_nid = :nid AND question_vid = :vid AND result_id = :result_id', array(
      ':nid' => $this->node->nid,
      ':vid' => $this->node->vid,
      ':result_id' => $rid,
    ))
      ->fetchField();
    if (is_numeric($fid)) {
      $form['previous_upload'] = array(
        '#title' => t('Previous upload'),
        '#type' => 'item',
        '#markup' => quiz_file_markup($fid),
        '#description' => t('<strong>Upload a new file to replace previous upload.</strong>'),
      );
    }
    $form['tries'] = array(
      '#type' => 'file',
      '#title' => t('Upload'),
      '#description' => t('Allowed extensions !ext', array(
        '!ext' => $this->node->filetypes,
      )),
    );
    return $form;
  }

  /**
   * Implements getCreationForm().
   *
   * @see QuizQuestion#getCreationForm($form_state)
   */
  public function getCreationForm(array &$form_state = NULL) {
    $allowed = variable_get('quizfileupload_default_extensions', QUIZFILEUPLOAD_DEFAULT_EXTENSIONS);
    $form['filetypes'] = array(
      '#type' => 'textfield',
      '#title' => t('Allowed extension'),
      '#description' => t('Enter the allowed file extensions one per line.'),
      '#default_value' => isset($this->node->filetypes) ? $this->node->filetypes : $allowed,
      '#required' => TRUE,
    );
    $options = array(
      self::ANSWER_MATCH => t('Automatic'),
      self::ANSWER_MANUAL => t('Manual'),
    );
    $form['correct_answer_evaluation'] = array(
      '#type' => 'radios',
      '#title' => t('Pick an evaluation method'),
      '#description' => t('Choose how the answer shall be evaluated.'),
      '#options' => $options,
      '#default_value' => isset($this->node->correct_answer_evaluation) ? $this->node->correct_answer_evaluation : self::ANSWER_MATCH,
      '#required' => TRUE,
    );
    return $form;
  }

  /**
   * Implements getMaximumScore().
   *
   * @see QuizQuestion#getMaximumScore()
   */
  public function getMaximumScore() {
    return variable_get('quizfileupload_default_score', 1);
  }

}

Members

Name	Modifiers	Type	Description	Overrides
QuizfileuploadQuestion::ANSWER_MANUAL		constant
QuizfileuploadQuestion::ANSWER_MATCH		constant
QuizfileuploadQuestion::delete	public	function	Implements delete().
QuizfileuploadQuestion::getAnsweringForm	public	function	Implements getAnsweringForm().
QuizfileuploadQuestion::getCreationForm	public	function	Implements getCreationForm().
QuizfileuploadQuestion::getMaximumScore	public	function	Implements getMaximumScore().
QuizfileuploadQuestion::getNodeProperties	public	function	Implements getNodeProperties().
QuizfileuploadQuestion::getNodeView	public	function	Implements getNodeView().
QuizfileuploadQuestion::saveNodeProperties	public	function	Implements saveNodeProperties().
QuizfileuploadQuestion::validateNode	public	function	Implements validateNode().