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   1  <?php
   2  
   3  // This file is part of Moodle - http://moodle.org/
   4  //
   5  // Moodle is free software: you can redistribute it and/or modify
   6  // it under the terms of the GNU General Public License as published by
   7  // the Free Software Foundation, either version 3 of the License, or
   8  // (at your option) any later version.
   9  //
  10  // Moodle is distributed in the hope that it will be useful,
  11  // but WITHOUT ANY WARRANTY; without even the implied warranty of
  12  // MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  13  // GNU General Public License for more details.
  14  //
  15  // You should have received a copy of the GNU General Public License
  16  // along with Moodle.  If not, see <http://www.gnu.org/licenses/>.
  17  
  18  /**
  19   * Submit an assignment or edit the already submitted work
  20   *
  21   * @package    mod_workshop
  22   * @copyright  2009 David Mudrak <david.mudrak@gmail.com>
  23   * @license    http://www.gnu.org/copyleft/gpl.html GNU GPL v3 or later
  24   */
  25  
  26  defined('MOODLE_INTERNAL') || die();
  27  
  28  require_once($CFG->dirroot . '/lib/formslib.php');
  29  
  30  class workshop_submission_form extends moodleform {
  31  
  32      function definition() {
  33          $mform = $this->_form;
  34  
  35          $current        = $this->_customdata['current'];
  36          $workshop       = $this->_customdata['workshop'];
  37          $contentopts    = $this->_customdata['contentopts'];
  38          $attachmentopts = $this->_customdata['attachmentopts'];
  39  
  40          $mform->addElement('header', 'general', get_string('submission', 'workshop'));
  41  
  42          $mform->addElement('text', 'title', get_string('submissiontitle', 'workshop'));
  43          $mform->setType('title', PARAM_TEXT);
  44          $mform->addRule('title', null, 'required', null, 'client');
  45  
  46          $mform->addElement('editor', 'content_editor', get_string('submissioncontent', 'workshop'), null, $contentopts);
  47          $mform->setType('content', PARAM_RAW);
  48  
  49          if ($workshop->nattachments > 0) {
  50              $mform->addElement('static', 'filemanagerinfo', get_string('nattachments', 'workshop'), $workshop->nattachments);
  51              $mform->addElement('filemanager', 'attachment_filemanager', get_string('submissionattachment', 'workshop'),
  52                                  null, $attachmentopts);
  53          }
  54  
  55          $mform->addElement('hidden', 'id', $current->id);
  56          $mform->setType('id', PARAM_INT);
  57  
  58          $mform->addElement('hidden', 'cmid', $workshop->cm->id);
  59          $mform->setType('cmid', PARAM_INT);
  60  
  61          $mform->addElement('hidden', 'edit', 1);
  62          $mform->setType('edit', PARAM_INT);
  63  
  64          $mform->addElement('hidden', 'example', 0);
  65          $mform->setType('example', PARAM_INT);
  66  
  67          $this->add_action_buttons();
  68  
  69          $this->set_data($current);
  70      }
  71  
  72      function validation($data, $files) {
  73          global $CFG, $USER, $DB;
  74  
  75          $errors = parent::validation($data, $files);
  76  
  77          if (empty($data['id']) and empty($data['example'])) {
  78              // make sure there is no submission saved meanwhile from another browser window
  79              $sql = "SELECT COUNT(s.id)
  80                        FROM {workshop_submissions} s
  81                        JOIN {workshop} w ON (s.workshopid = w.id)
  82                        JOIN {course_modules} cm ON (w.id = cm.instance)
  83                        JOIN {modules} m ON (m.name = 'workshop' AND m.id = cm.module)
  84                       WHERE cm.id = ? AND s.authorid = ? AND s.example = 0";
  85  
  86              if ($DB->count_records_sql($sql, array($data['cmid'], $USER->id))) {
  87                  $errors['title'] = get_string('err_multiplesubmissions', 'mod_workshop');
  88              }
  89          }
  90  
  91          if (isset($data['attachment_filemanager']) and isset($this->_customdata['workshop']->submissionfiletypes)) {
  92              $whitelist = workshop::normalize_file_extensions($this->_customdata['workshop']->submissionfiletypes);
  93              if ($whitelist) {
  94                  $draftfiles = file_get_drafarea_files($data['attachment_filemanager']);
  95                  if ($draftfiles) {
  96                      $wrongfiles = array();
  97                      foreach ($draftfiles->list as $file) {
  98                          if (!workshop::is_allowed_file_type($file->filename, $whitelist)) {
  99                              $wrongfiles[] = $file->filename;
 100                          }
 101                      }
 102                      if ($wrongfiles) {
 103                          $a = array(
 104                              'whitelist' => workshop::clean_file_extensions($whitelist),
 105                              'wrongfiles' => implode(', ', $wrongfiles),
 106                          );
 107                          $errors['attachment_filemanager'] = get_string('err_wrongfileextension', 'mod_workshop', $a);
 108                      }
 109                  }
 110              }
 111          }
 112  
 113          return $errors;
 114      }
 115  }