PHP quiz_process_options函数代码示例

/**
 * 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.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;
    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;
}

//.........这里部分代码省略.........
            }
            if ($r_pct <= 0 || $r_pct >= 100) {
                return false;
            }
            if ($r_i > 0 && $r_bd >= $r_lb) {
                return false;
            }
            $r_lb = $r_bd * $r_qiz->grade / 100.0;
        }
        $r_bds[] = $r_bd;
    }
    $r_nf = count($r_fds);
    $r_nb = count($r_bds);
    if ($r_nf > 0) {
        if ($r_nf != $r_nb + 1) {
            return false;
        }
        for ($r_i = 0; $r_i < $r_nf; $r_i++) {
            if (isset($r_qiz->feedbacktext[$r_i]["itemid"])) {
                $r_drf = $r_qiz->feedbacktext[$r_i]["itemid"];
            } else {
                $r_drf = 0;
            }
            $r_cmp = "mod_quiz";
            $r_far = "feedback";
            $r_iti = null;
            $r_op = null;
            $r_txt = $r_fds[$r_i];
            $r_qiz->feedbacktext[$r_i]["text"] = file_prepare_draft_area($r_drf, $r_ctxi, $r_cmp, $r_far, $r_iti, $r_op, $r_txt);
            $r_qiz->feedbacktext[$r_i]["format"] = FORMAT_HTML;
            $r_qiz->feedbacktext[$r_i]["itemid"] = $r_drf;
            if ($r_i < $r_nf - 1) {
                $r_qiz->feedbackboundaries[$r_i] = $r_bds[$r_i];
            }
        }
    }
    $r_ct = 1;
    if ($r_sz < $r_ct) {
        return false;
    }
    $r_fld = substr($r_rcd, $r_p, $r_ct);
    $r_p += $r_ct;
    $r_sz -= $r_ct;
    $r_dat = unpack("C", $r_fld);
    $r_lbq = intval($r_dat[1]);
    if ($r_lbq != 0 && $r_lbq != 1) {
        return false;
    }
    $RWSLB->atts = $r_lbq;
    $r_ct = 1;
    if ($r_sz < $r_ct) {
        return false;
    }
    $r_fld = substr($r_rcd, $r_p, $r_ct);
    $r_p += $r_ct;
    $r_sz -= $r_ct;
    $r_dat = unpack("C", $r_fld);
    $r_lbr = intval($r_dat[1]);
    if ($r_lbr != 0 && $r_lbr != 1) {
        return false;
    }
    $RWSLB->revs = $r_lbr;
    if ($r_sz < 1) {
        return false;
    }
    $r_ct = strpos(substr($r_rcd, $r_p), "");
    if ($r_ct === false) {
        return false;
    }
    if ($r_ct > 0) {
        $r_fld = substr($r_rcd, $r_p, $r_ct);
    } else {
        $r_fld = "";
    }
    $r_ct++;
    $r_p += $r_ct;
    $r_sz -= $r_ct;
    $RWSLB->pw = trim($r_fld);
    $r_ct = 4;
    if ($r_sz < $r_ct) {
        return false;
    }
    $r_fld = substr($r_rcd, $r_p, $r_ct);
    $r_p += $r_ct;
    $r_sz -= $r_ct;
    $r_dat = unpack("N", $r_fld);
    $r_ct = $r_dat[1];
    if ($r_sz < $r_ct) {
        return false;
    }
    $r_p += $r_ct;
    $r_sz -= $r_ct;
    if ($r_pop) {
        if (is_null($r_qiz->quizpassword) && !is_null($r_qiz->password)) {
            $r_qiz->quizpassword = $r_qiz->password;
        }
        quiz_process_options($r_qiz);
    }
    return true;
}