preview.php

<?php
// This file is part of Moodle - http://moodle.org/
//
// Moodle is free software: you can redistribute it and/or modify
// it under the terms of the GNU General Public License as published by
// the Free Software Foundation, either version 3 of the License, or
// (at your option) any later version.
//
// Moodle is distributed in the hope that it will be useful,
// but WITHOUT ANY WARRANTY; without even the implied warranty of
// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
// GNU General Public License for more details.
//
// You should have received a copy of the GNU General Public License
// along with Moodle.  If not, see <http://www.gnu.org/licenses/>.

// This page displays a non-completable instance of questionnaire.

require_once("../../config.php");
require_once($CFG->dirroot.'/mod/questionnaire/questionnaire.class.php');

$id     = optional_param('id', 0, PARAM_INT);
$sid    = optional_param('sid', 0, PARAM_INT);
$popup  = optional_param('popup', 0, PARAM_INT);
$qid    = optional_param('qid', 0, PARAM_INT);

if ($id) {
    if (! $cm = get_coursemodule_from_id('questionnaire', $id)) {
        print_error('invalidcoursemodule');
    }

    if (! $course = $DB->get_record("course", array("id" => $cm->course))) {
        print_error('coursemisconf');
    }

    if (! $questionnaire = $DB->get_record("questionnaire", array("id" => $cm->instance))) {
        print_error('invalidcoursemodule');
    }
} else {
    if (! $survey = $DB->get_record("questionnaire_survey", array("id" => $sid))) {
        print_error('surveynotexists', 'questionnaire');
    }
    if (! $course = $DB->get_record("course", array("id" => $survey->owner))) {
        print_error('coursemisconf');
    }
    // Dummy questionnaire object.
    $questionnaire = new Object();
    $questionnaire->id = 0;
    $questionnaire->course = $course->id;
    $questionnaire->name = $survey->title;
    $questionnaire->sid = $sid;
    $questionnaire->resume = 0;
    // Dummy cm object.
    if (!empty($qid)) {
        $cm = get_coursemodule_from_instance('questionnaire', $qid, $course->id);
    } else {
        $cm = false;
    }
}

// Check login and get context.
require_login($course->id, false, $cm);
$context = $cm ? context_module::instance($cm->id) : false;

$url = new moodle_url('/mod/questionnaire/preview.php');
if ($id !== 0) {
    $url->param('id', $id);
}
if ($sid) {
    $url->param('sid', $sid);
}
$PAGE->set_url($url);

if (!$popup) {
    $PAGE->set_context($context);
}

$questionnaire = new questionnaire($qid, $questionnaire, $course, $cm);
$owner = (trim($questionnaire->survey->owner) == trim($course->id));

$canpreview = (!isset($questionnaire->capabilities) &&
               has_capability('mod/questionnaire:preview', context_course::instance($course->id))) ||
              (isset($questionnaire->capabilities) && $questionnaire->capabilities->preview && $owner);
if (!$canpreview) {
    // Should never happen, unless called directly by a snoop...
    print_error('nopermissions', 'questionnaire', $CFG->wwwroot.'/mod/questionnaire/view.php?id='.$cm->id);
}

$SESSION->questionnaire = new stdClass();
$SESSION->questionnaire->current_tab = new stdClass();
$SESSION->questionnaire->current_tab = 'preview';

$qp = get_string('preview_questionnaire', 'questionnaire');
$pq = get_string('previewing', 'questionnaire');

// Print the page header.
if ($popup) {
    $PAGE->set_pagelayout('popup');
}
$PAGE->set_title(format_string($qp));
if (!$popup) {
    $PAGE->set_heading(format_string($course->fullname));
}

// Include the needed js.


$PAGE->requires->js('/mod/questionnaire/module.js');

echo $OUTPUT->header();
echo $OUTPUT->heading($pq);
$questionnaire->survey_print_render('', 'preview', $course->id, $rid = 0, $popup);
if ($popup) {
    echo $OUTPUT->close_window_button();
}
echo $OUTPUT->footer($course);