PHP quiz_after_add_or_update函数代码示例

function quizcopy_add_instance(&$quizcopy)
{
    $cmid = $quizcopy->quiz;
    $name = $quizcopy->name;
    $cm = get_coursemodule_from_id('quiz', $cmid);
    if (!($quiz = get_record('quiz', 'id', $cm->instance))) {
        print_error('error', 'quizcopy');
    }
    $origquiz = $quiz->id;
    unset($quiz->id);
    // remove single quote to prevent SQL errors (nadavkav 11-6-11)
    $quiz->name = str_replace("'", '', $name);
    $quiz->intro = str_replace("'", '', $quiz->intro);
    if (!($quiz->id = insert_record('quiz', $quiz))) {
        print_error('error', 'quizcopy');
    }
    $newquestions = array();
    if (!is_null($quiz->questions) && !empty($quiz->questions)) {
        $questions = explode(',', $quiz->questions);
        foreach ($questions as $question) {
            $newquestions[] = $question;
            if ($question != 0) {
                if (!($instance_object = get_record('quiz_question_instances', 'quiz', $origquiz, 'question', $question))) {
                    print_error('error', 'quizcopy');
                }
                unset($instance_object->id);
                $instance_object->quiz = $quiz->id;
                if (!insert_record('quiz_question_instances', $instance_object)) {
                    print_error('error', 'quizcopy');
                }
            }
        }
    }
    if ($feedbacks = get_records('quiz_feedback', 'quizid', $origquiz, 'maxgrade DESC')) {
        $i = 0;
        $quiz->feedbacktext = array();
        $quiz->feedbackboundaries = array();
        foreach ($feedbacks as $feedback) {
            $quiz->feedbacktext[$i] = $feedback->feedbacktext;
            $quiz->feedbackboundaries[$i] = $feedback->mingrade;
            $quiz->feedbackboundaries[$i - 1] = $feedback->maxgrade;
            $i++;
        }
        $quiz->feedbackboundarycount = $i - 1;
    }
    $quiz->questions = implode(',', $newquestions);
    if (!update_record('quiz', $quiz)) {
        print_error('error', 'quizcopy');
    }
    $quizcopy->timecreated = time();
    $quizcopy->module = $cm->module;
    $quizcopy->modulename = 'quiz';
    $quizcopy->visible = $cm->visible;
    $quizcopy->groupmode = $cm->groupmode;
    $quizcopy->groupmembersonly = $cm->groupmembersonly;
    $quizcopy->module = $cm->module;
    quiz_after_add_or_update($quiz);
    return $quiz->id;
}

/**
 * Given an object containing all the necessary data,
 * (defined by the form in mod.html) this function
 * will update an existing instance with new data.
 *
 * @param object $quiz the data that came from the form.
 * @return mixed true on success, false or a string error message on failure.
 */
function quiz_update_instance($quiz)
{
    // Process the options from the form.
    $result = quiz_process_options($quiz);
    if ($result && is_string($result)) {
        return $result;
    }
    // Update the database.
    $quiz->id = $quiz->instance;
    if (!update_record("quiz", $quiz)) {
        return false;
        // some error occurred
    }
    // Do the processing required after an add or an update.
    quiz_after_add_or_update($quiz);
    // Delete any previous preview attempts
    delete_records('quiz_attempts', 'preview', '1', 'quiz', $quiz->id);
    return true;
}

/**
 * Given an object containing all the necessary data,
 * (defined by the form in mod_form.php) this function
 * will update an existing instance with new data.
 *
 * @param object $quiz the data that came from the form.
 * @return mixed true on success, false or a string error message on failure.
 */
function quiz_update_instance($quiz, $mform) {
    global $CFG, $DB;

    // Process the options from the form.
    $result = quiz_process_options($quiz);
    if ($result && is_string($result)) {
        return $result;
    }

    $oldquiz = $DB->get_record('quiz', array('id' => $quiz->instance));

    // Repaginate, if asked to.
    if (!$quiz->shufflequestions && !empty($quiz->repaginatenow)) {
        require_once($CFG->dirroot . '/mod/quiz/locallib.php');
        $quiz->questions = quiz_repaginate(quiz_clean_layout($oldquiz->questions, true),
                $quiz->questionsperpage);
    }
    unset($quiz->repaginatenow);

    // Update the database.
    $quiz->id = $quiz->instance;
    $DB->update_record('quiz', $quiz);

    // Do the processing required after an add or an update.
    quiz_after_add_or_update($quiz);

    if ($oldquiz->grademethod != $quiz->grademethod) {
        require_once($CFG->dirroot . '/mod/quiz/locallib.php');
        $quiz->sumgrades = $oldquiz->sumgrades;
        $quiz->grade = $oldquiz->grade;
        quiz_update_all_final_grades($quiz);
        quiz_update_grades($quiz);
    }

    // Delete any previous preview attempts.
    quiz_delete_previews($quiz);

    return true;
}

/**
 * Given an object containing all the necessary data,
 * (defined by the form in mod_form.php) this function
 * will update an existing instance with new data.
 *
 * @param object $quiz the data that came from the form.
 * @return mixed true on success, false or a string error message on failure.
 */
function quiz_update_instance($quiz, $mform)
{
    global $CFG, $DB;
    require_once $CFG->dirroot . '/mod/quiz/locallib.php';
    // Process the options from the form.
    $result = quiz_process_options($quiz);
    if ($result && is_string($result)) {
        return $result;
    }
    // Get the current value, so we can see what changed.
    $oldquiz = $DB->get_record('quiz', array('id' => $quiz->instance));
    // We need two values from the existing DB record that are not in the form,
    // in some of the function calls below.
    $quiz->sumgrades = $oldquiz->sumgrades;
    $quiz->grade = $oldquiz->grade;
    // Repaginate, if asked to.
    if (!$quiz->shufflequestions && !empty($quiz->repaginatenow)) {
        $quiz->questions = quiz_repaginate(quiz_clean_layout($oldquiz->questions, true), $quiz->questionsperpage);
    }
    unset($quiz->repaginatenow);
    // Update the database.
    $quiz->id = $quiz->instance;
    $DB->update_record('quiz', $quiz);
    // Do the processing required after an add or an update.
    quiz_after_add_or_update($quiz);
    if ($oldquiz->grademethod != $quiz->grademethod) {
        quiz_update_all_final_grades($quiz);
        quiz_update_grades($quiz);
    }
    $quizdateschanged = $oldquiz->timelimit != $quiz->timelimit || $oldquiz->timeclose != $quiz->timeclose || $oldquiz->graceperiod != $quiz->graceperiod;
    if ($quizdateschanged) {
        quiz_update_open_attempts(array('quizid' => $quiz->id));
    }
    // Delete any previous preview attempts.
    quiz_delete_previews($quiz);
    return true;
}