gradeimporter/view.php

<?php
// This file is part of LInE contributions to Free Education, Private Data
// LInE (Laboratory of Informatics in Education)
// http://www.usp.br/line
//
// Moodle is free software: you can redistribute it 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; // Moodle variable to access data base

// Get parameter passed through HTTP by Moodle
$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); // to download an specific file
$filename = optional_param('filename', 'a', PARAM_TEXT);

if ($id) { // is $id defined?
  if (! $cm = get_coursemodule_from_id('gradeimporter', $id)) { // get object from table "coursemodule"
    error('Course Module ID was incorrect'); //TODO precisa internacionalizar
    }
  if (! $course = $DB->get_record('course', array('id' => $cm->course))) { // get object from table "course"
    error('Course is misconfigured'); //TODO precisa internacionalizar
    }
  if (! $gradeimporter = $DB->get_record('gradeimporter', array('id' => $cm->instance))) {
    error('Course module is incorrect'); //TODO precisa internacionalizar
    }
  }
else
if ($g) {
  if (! $gradeimporter = $DB->get_record('gradeimporter', array('id' => $g))) {
    error('Course module is incorrect'); //TODO precisa internacionalizar
    }
  if (! $course = $DB->get_record('course', array('id' => $gradeimporter->course))) {
    error('Course is misconfigured'); //TODO precisa internacionalizar
    }
  if (! $cm = get_coursemodule_from_instance('gradeimporter', $gradeimporter->id, $course->id)) {
    error('Course Module ID was incorrect'); //TODO precisa internacionalizar
    }
  }
else {
  error('You must specify a course_module ID or an instance ID'); //TODO precisa internacionalizar
  }

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');
print $output->header();

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

print $output->heading($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 . '">' . "\n" .
    '<input type="hidden" name="id" value="'. $gradeimporter->id .'" />' . "\n" .
    '<input type="hidden" name="cmid" value="'.$cm->id.'" />' . "\n" .
    '<input type="submit" Value="'.get_string('newsubmission', 'gradeimporter').'" />' . "\n" .
    '</form>' . "\n";
  print $newbutton;

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

// Table of this instance are bellow: students, grades and file

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);
  $teacherview = new Teacherview($cm->id, $gradeimporter->id);
  $teachertable = $teacherview->make_table();
  print $teachertable;
  } 
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!
print $output->footer();