mod/lesson/import_form.php

   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  * Form used to select a file and file format for the import
  20  *
  21  * @package mod_lesson
  22  * @copyright  2009 Sam Hemelryk
  23  * @license    http://www.gnu.org/copyleft/gpl.html GNU GPL v3 or later
  24  **/
  25
  26 defined('MOODLE_INTERNAL') || die();
  27
  28 /**
  29  * Form used to select a file and file format for the import
  30  * @copyright  2009 Sam Hemelryk
  31  * @license    http://www.gnu.org/copyleft/gpl.html GNU GPL v3 or later
  32  */
  33 class lesson_import_form extends moodleform {
  34
  35     public function definition() {
  36
  37         $mform = $this->_form;
  38
  39         $mform->addElement('hidden', 'id');
  40         $mform->setType('id', PARAM_INT);
  41
  42         $mform->addElement('hidden', 'pageid');
  43         $mform->setType('pageid', PARAM_INT);
  44
  45         $mform->addElement('select', 'format', get_string('fileformat', 'lesson'), $this->_customdata['formats']);
  46         $mform->setDefault('format', 'gift');
  47         $mform->setType('format', 'text');
  48         $mform->addRule('format', null, 'required');
  49
  50         //Using filemanager as filepicker
  51         $mform->addElement('filepicker', 'questionfile', get_string('upload'));
  52         $mform->addRule('questionfile', null, 'required', null, 'client');
  53
  54         $this->add_action_buttons(null, get_string("import"));
  55     }
  56
  57     /**
  58      * Checks that a file has been uploaded, and that it is of a plausible type.
  59      * @param array $data the submitted data.
  60      * @param array $errors the errors so far.
  61      * @return array the updated errors.
  62      * @throws moodle_exception
  63      */
  64     protected function validate_uploaded_file($data, $errors) {
  65         global $CFG;
  66
  67         if (empty($data['questionfile'])) {
  68             $errors['questionfile'] = get_string('required');
  69             return $errors;
  70         }
  71
  72         $files = $this->get_draft_files('questionfile');
  73         if (!is_array($files) || count($files) < 1) {
  74             $errors['questionfile'] = get_string('required');
  75             return $errors;
  76         }
  77
  78         $formatfile = $CFG->dirroot.'/question/format/'.$data['format'].'/format.php';
  79         if (!is_readable($formatfile)) {
  80             throw new moodle_exception('formatnotfound', 'lesson', '', $data['format']);
  81         }
  82
  83         require_once($formatfile);
  84
  85         $classname = 'qformat_' . $data['format'];
  86         $qformat = new $classname();
  87
  88         return $errors;
  89     }
  90
  91     public function validation($data, $files) {
  92         $errors = parent::validation($data, $files);
  93         $errors = $this->validate_uploaded_file($data, $errors);
  94         return $errors;
  95     }
  96 }