index.php

<?php

// This file is part of Moodle - http://moodle.org/
//
// Signinsheet 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.
//
// Signinsheet 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/>.


/**
 *
 * @package    block_signinsheet
 * @copyright  2018 Kyle Goslin, Daniel McSweeney
 * @license    http://www.gnu.org/copyleft/gpl.html GNU GPL v3 or later
 *
 * index.php
 * This file is used for making records of the images that have been uploaded.
 */


// --------------
//
// Standard Moodle Setup
//
// --------------
require_once('../../config.php');
global $CFG, $USER, $DB, $OUTPUT, $PAGE;

$PAGE->set_url('/local/filemanager/index.php');
require_login();

$PAGE->set_pagelayout('admin');

// Choose the most appropriate context for your file manager - e.g. block, course, course module, this example uses
// the system context (as we are in a 'local' plugin without any other context)
// This is VERY important, the filemanager MUST have a valid context!
$context = context_system::instance();
$PAGE->set_context($context);

// Setup the page
$PAGE->set_title(get_string('uploadimage', 'block_signinsheet'));
$PAGE->set_heading(get_string('uploadimage', 'block_signinsheet'));

//DEFINITIONS
require_once($CFG->libdir.'/formslib.php');
require_once('lib.php');

// ===============
//
//
// PAGE LOGIC
//
//
// ===============

// Create some options for the file manager
$filemanageropts = array('subdirs' => 0, 'maxbytes' => '0', 'maxfiles' => 1, 'context' => $context);
$customdata = array('filemanageropts' => $filemanageropts);

// Create a new form object (found in lib.php)
$mform = new simplehtml_form(null, $customdata);

// ---------
// CONFIGURE FILE MANAGER
// ---------
// From http://docs.moodle.org/dev/Using_the_File_API_in_Moodle_forms#filemanager
$itemid = 0; // This is used to distinguish between multiple file areas, e.g. different student's assignment submissions, or attachments to different forum posts, in this case we use '0' as there is no relevant id to use

// Fetches the file manager draft area, called 'attachments'
$draftitemid = file_get_submitted_draft_itemid('attachments');

// Copy all the files from the 'real' area, into the draft area
file_prepare_draft_area($draftitemid, $context->id, 'block_signinsheet', 'attachment', $itemid, $filemanageropts);

// Prepare the data to pass into the form - normally we would load this from a database, but, here, we have no 'real' record to load
$entry = new stdClass();
$entry->attachments = $draftitemid; // Add the draftitemid to the form, so that 'file_get_submitted_draft_itemid' can retrieve it
// ---------

// Set form data
// This will load the file manager with your previous files
$mform->set_data($entry);

// ===============
//
//
// PAGE OUTPUT
//
//
// ===============
echo $OUTPUT->header();

// ----------
// Form Submit Status
// ----------
if ($mform->is_cancelled()) {
    // CANCELLED
    echo '<h1>Cancelled</h1>';
} elseif ($data = $mform->get_data()) {
    // Save the files submitted
    file_save_draft_area_files($draftitemid, $context->id, 'block_signinsheet', 'attachment', $itemid, $filemanageropts);

    $fs = get_file_storage();
    if ($files = $fs->get_area_files($context->id, 'block_signinsheet', 'attachment', '0', 'sortorder', false)) {
        // Look through each file being managed
        foreach ($files as $file) {
            // Build the File URL. Long process! But extremely accurate.
            $fileurl = moodle_url::make_pluginfile_url($file->get_contextid(), $file->get_component(), $file->get_filearea(), $file->get_itemid(), $file->get_filepath(), $file->get_filename());

            $cleanPath =(string)$fileurl;


            // Display the image
            // echo "<br /><img src='$fileurl' />";
        }
    }

    global $DB, $CFG;

    $recordexists = $DB->get_record('block_signinsheet', array('id'=>1));

    if ($recordexists) {
        $record = new stdClass();
        $record->id = 1;
        $record->fieldvarname = 'imgurl';
        $record->field_value = $cleanPath;

        $DB->update_record('block_signinsheet', $record, $bulk=false);
    } else {
        $record = new stdClass();
        $record->fieldvarname = 'imgurl';
        $record->field_value = $cleanPath;
        $DB->insert_record('block_signinsheet', $record, false);
    }


    echo '<script>window.location="../../admin/settings.php?section=blocksettingsigninsheet";</script>';
} else {
    $mform->display();
}

echo $OUTPUT->footer();