gradeimporter/view.php

<?php
// This file is part of
//
// 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/>.

require_once(dirname(dirname(dirname(__FILE__))).'/config.php');
require_once(dirname(__FILE__).'/lib.php');
require_once($CFG->libdir.'/filelib.php');
require_once('locallib.php');
require_once('libs/student_viewlib.php');
require_once('libs/teacher_viewlib.php');

  global $DB;

  $id = optional_param('id', 0, PARAM_INT); // Course_module ID.
  $g  = optional_param('g', 0, PARAM_INT);  // Gradeimporter instance ID, should be named as the first character of the module.
  $action = optional_param('action', 0, PARAM_INT);
  $fileid     = optional_param('fileid', 0, PARAM_INT);
  $filename   = optional_param('filename', 'a', PARAM_TEXT);



if ($id) {
    if (! $cm = get_coursemodule_from_id('gradeimporter', $id)) {
        error('Course Module ID was incorrect');
    }

    if (! $course = $DB->get_record('course', array('id' => $cm->course))) {
        error('Course is misconfigured');
    }

    if (! $gradeimporter = $DB->get_record('gradeimporter', array('id' => $cm->instance))) {
        error('Course module is incorrect');
    }
} else if ($g) {
    if (! $gradeimporter = $DB->get_record('gradeimporter', array('id' => $g))) {
        error('Course module is incorrect');
    }
    if (! $course = $DB->get_record('course', array('id' => $gradeimporter->course))) {
        error('Course is misconfigured');
    }
    if (! $cm = get_coursemodule_from_instance('gradeimporter', $gradeimporter->id, $course->id)) {
        error('Course Module ID was incorrect');
    }
} else {
    error('You must specify a course_module ID or an instance ID');
}

require_login($course, true, $cm);

$context = context_module::instance($cm->id);



if ($action == 1 && has_capability('mod/gradeimporter:view', $context)) {
    // Download feedback file.
    $fs = get_file_storage();
    $file = $fs->get_file($context->id, 'mod_gradeimporter', 'gradeimporter_feedback', $fileid, '/', $filename);
    if ($file) {
        send_stored_file($file, 86400, 0, true);
    }
} else if ($action == 2 && has_capability('mod/gradeimporter:edit', $context)) {
    // Download students csv with their id.
    exportCSV($context);
}


// Print the page header.
$PAGE->set_cm($cm);
$PAGE->set_url('/mod/gradeimporter/view.php', array('id' => $cm->id));
$PAGE->set_title(format_string($gradeimporter->name));
$PAGE->set_heading(format_string($course->fullname));
$PAGE->set_context($context);

$output = $PAGE->get_renderer('mod_folder');
echo $output->header();

$heading = get_string('displayingview', 'gradeimporter', $gradeimporter->name);

echo $output->heading($heading);


// Button to add new submission.
if (has_capability('mod/gradeimporter:edit', $context)) {
    $url = new moodle_url('/mod/gradeimporter/forms/submission/submission.php');
    $newbutton = '<form action="'. $url . '">'.
          '<input type="hidden" name="id" value="'. $gradeimporter->id .'" />'.
          '<input type="hidden" name="cmid" value="'.$cm->id.'" />'.
          '<input type="submit" Value="'.get_string('newsubmission', 'gradeimporter').'" />'.
          '</form>';
    echo $newbutton;

    $url = new moodle_url("/mod/gradeimporter/view.php", array('id' => $id, 'cmid' => $cm->id, 'action' => 2));
    $newbutton = '<form action="'. $url . '">'.
        '<input type="hidden" name="id" value="'. $id .'" />'.
        '<input type="hidden" name="cmid" value="'.$cm->id.'" />'.
        '<input type="hidden" name="action" value="2" />'.
        '<input type="submit" Value="'.get_string('downloadconfigcsv', 'gradeimporter').'" />'.
        '</form>';
    echo $newbutton;
}

// Tabela com as notas vem aqui.

require_once($CFG->libdir . '/tablelib.php');
require_once(dirname(__FILE__).'/locallib.php');

if (has_capability('mod/gradeimporter:edit', $context)) {
    // Loads teacher view.
    get_teacher_view($cm->id, $gradeimporter->id);
    // get_teacher_view($cm->id, $gradeimporter->id, $enrolledusers);
} else {
    // Load student view

    // Query database to find student feedbacks
    $feedbacks = query_feedbacks($cm->id, $gradeimporter->id);
    make_feedback_table($feedbacks, $cm->id);
}

// Finishes the page!
echo $output->footer();