moodle-mod-customcert/load_template.php

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<?php
// This file is part of the customcert module for 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/>.
/**
* Handles loading a customcert template.
*
* @package mod_customcert
* @copyright 2013 Mark Nelson <markn@moodle.com>
* @license http://www.gnu.org/copyleft/gpl.html GNU GPL v3 or later
*/
require_once('../../config.php');
require_once($CFG->dirroot . '/mod/customcert/locallib.php');
require_once($CFG->dirroot . '/mod/customcert/save_template_form.php');
$cmid = required_param('cmid', PARAM_INT);
$tid = required_param('tid', PARAM_INT);
$confirm = optional_param('confirm', 0, PARAM_INT);
$cm = get_coursemodule_from_id('customcert', $cmid, 0, false, MUST_EXIST);
$course = $DB->get_record('course', array('id' => $cm->course), '*', MUST_EXIST);
$customcert = $DB->get_record('customcert', array('id' => $cm->instance), '*', MUST_EXIST);
$template = $DB->get_record('customcert_template', array('id' => $tid), '*', MUST_EXIST);
$context = context_module::instance($cm->id);
require_login($course, false, $cm);
require_capability('mod/customcert:manage', $context);
// Check that they have confirmed they wish to load the template.
if ($confirm) {
// First, remove all the existing elements and pages.
$sql = "SELECT e.*
FROM {customcert_elements} e
INNER JOIN {customcert_pages} p
ON e.pageid = p.id
WHERE p.customcertid = :customcertid";
if ($elements = $DB->get_records_sql($sql, array('customcertid' => $customcert->id))) {
foreach ($elements as $element) {
// Get an instance of the element class.
if ($e = customcert_get_element_instance($element)) {
$e->delete_element();
}
}
}
// Delete the pages.
$DB->delete_records('customcert_pages', array('customcertid' => $customcert->id));
// Store the current time in a variable.
$time = time();
// Now, get the template data.
if ($templatepages = $DB->get_records('customcert_template_pages', array('templateid' => $tid))) {
// Create an array to store any errors loading an element to a template.
$errors = array();
// Loop through the pages.
foreach ($templatepages as $templatepage) {
$page = clone($templatepage);
$page->customcertid = $customcert->id;
$page->timecreated = $time;
$page->timemodified = $time;
// Insert into the database.
$page->id = $DB->insert_record('customcert_pages', $page);
// Now go through the elements.
if ($templateelements = $DB->get_records('customcert_template_elements', array('templatepageid' => $templatepage->id))) {
foreach ($templateelements as $templateelement) {
$element = clone($templateelement);
$element->pageid = $page->id;
$element->timecreated = $time;
$element->timemodified = $time;
// Ok, now we want to insert this into the database.
$element->id = $DB->insert_record('customcert_elements', $element);
// Load any other information the element may need to for the template.
if ($e = customcert_get_element_instance($element)) {
if (!$e->load_data_from_template($element)) {
// Remove from the customcert_elements table.
$DB->delete_records('customcert_elements', array('id' => $element->id));
// Add the error message to the array to display later.
$errors[] = get_string('errorloadingelement', 'customcert', $element->element);
}
}
}
}
}
}
// Get any errors caused by the loading of an element and put into a message.
$message = '';
if (!empty($errors)) {
foreach ($errors as $e) {
$message .= $OUTPUT->notification($e) . '<br />';
}
}
// Redirect.
$url = new moodle_url('/mod/customcert/edit.php', array('cmid' => $cmid));
redirect($url, $message);
}
// Create the link options.
$nourl = new moodle_url('/mod/customcert/edit.php', array('cmid' => $cmid));
$yesurl = new moodle_url('/mod/customcert/load_template.php', array('cmid' => $cmid,
'tid' => $tid,
'confirm' => 1));
// Show a confirmation page.
$strheading = get_string('loadtemplate', 'customcert');
$PAGE->navbar->add($strheading);
$PAGE->set_title($strheading);
$PAGE->set_heading($COURSE->fullname);
$PAGE->set_url('/mod/customcert/load_template.php', array('cmid' => $cmid, 'tid' => $tid));
echo $OUTPUT->header();
echo $OUTPUT->heading($strheading);
echo $OUTPUT->confirm(get_string('loadtemplatemsg', 'customcert'), $yesurl, $nourl);
echo $OUTPUT->footer();