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   1  <?php
   2  // This file is part of Moodle - http://moodle.org/
   3  //
   4  // Moodle is free software: you can redistribute it and/or modify
   5  // it under the terms of the GNU General Public License as published by
   6  // the Free Software Foundation, either version 3 of the License, or
   7  // (at your option) any later version.
   8  //
   9  // Moodle is distributed in the hope that it will be useful,
  10  // but WITHOUT ANY WARRANTY; without even the implied warranty of
  11  // MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  12  // GNU General Public License for more details.
  13  //
  14  // You should have received a copy of the GNU General Public License
  15  // along with Moodle.  If not, see <http://www.gnu.org/licenses/>.
  16  
  17  /**
  18   * Defines the import questions form.
  19   *
  20   * @package    moodlecore
  21   * @subpackage questionbank
  22   * @copyright  1999 onwards Martin Dougiamas  {@link http://moodle.com}
  23   * @license    http://www.gnu.org/copyleft/gpl.html GNU GPL v3 or later
  24   */
  25  
  26  
  27  require_once(__DIR__ . '/../config.php');
  28  require_once($CFG->dirroot . '/question/editlib.php');
  29  require_once($CFG->dirroot . '/question/import_form.php');
  30  require_once($CFG->dirroot . '/question/format.php');
  31  
  32  list($thispageurl, $contexts, $cmid, $cm, $module, $pagevars) =
  33          question_edit_setup('import', '/question/import.php');
  34  
  35  // get display strings
  36  $txt = new stdClass();
  37  $txt->importerror = get_string('importerror', 'question');
  38  $txt->importquestions = get_string('importquestions', 'question');
  39  
  40  list($catid, $catcontext) = explode(',', $pagevars['cat']);
  41  if (!$category = $DB->get_record("question_categories", array('id' => $catid))) {
  42      print_error('nocategory', 'question');
  43  }
  44  
  45  $categorycontext = context::instance_by_id($category->contextid);
  46  $category->context = $categorycontext;
  47  //this page can be called without courseid or cmid in which case
  48  //we get the context from the category object.
  49  if ($contexts === null) { // need to get the course from the chosen category
  50      $contexts = new question_edit_contexts($categorycontext);
  51      $thiscontext = $contexts->lowest();
  52      if ($thiscontext->contextlevel == CONTEXT_COURSE){
  53          require_login($thiscontext->instanceid, false);
  54      } elseif ($thiscontext->contextlevel == CONTEXT_MODULE){
  55          list($module, $cm) = get_module_from_cmid($thiscontext->instanceid);
  56          require_login($cm->course, false, $cm);
  57      }
  58      $contexts->require_one_edit_tab_cap($edittab);
  59  }
  60  
  61  $PAGE->set_url($thispageurl);
  62  
  63  $import_form = new question_import_form($thispageurl, array('contexts'=>$contexts->having_one_edit_tab_cap('import'),
  64                                                      'defaultcategory'=>$pagevars['cat']));
  65  
  66  if ($import_form->is_cancelled()){
  67      redirect($thispageurl);
  68  }
  69  //==========
  70  // PAGE HEADER
  71  //==========
  72  $PAGE->set_title($txt->importquestions);
  73  $PAGE->set_heading($COURSE->fullname);
  74  echo $OUTPUT->header();
  75  
  76  // file upload form sumitted
  77  if ($form = $import_form->get_data()) {
  78  
  79      // file checks out ok
  80      $fileisgood = false;
  81  
  82      // work out if this is an uploaded file
  83      // or one from the filesarea.
  84      $realfilename = $import_form->get_new_filename('newfile');
  85  
  86      $importfile = "{$CFG->tempdir}/questionimport/{$realfilename}";
  87      make_temp_directory('questionimport');
  88      if (!$result = $import_form->save_file('newfile', $importfile, true)) {
  89          throw new moodle_exception('uploadproblem');
  90      }
  91  
  92      $formatfile = 'format/' . $form->format . '/format.php';
  93      if (!is_readable($formatfile)) {
  94          throw new moodle_exception('formatnotfound', 'question', '', $form->format);
  95      }
  96  
  97      require_once($formatfile);
  98  
  99      $classname = 'qformat_' . $form->format;
 100      $qformat = new $classname();
 101  
 102      // load data into class
 103      $qformat->setCategory($category);
 104      $qformat->setContexts($contexts->having_one_edit_tab_cap('import'));
 105      $qformat->setCourse($COURSE);
 106      $qformat->setFilename($importfile);
 107      $qformat->setRealfilename($realfilename);
 108      $qformat->setMatchgrades($form->matchgrades);
 109      $qformat->setCatfromfile(!empty($form->catfromfile));
 110      $qformat->setContextfromfile(!empty($form->contextfromfile));
 111      $qformat->setStoponerror($form->stoponerror);
 112  
 113      // Do anything before that we need to
 114      if (!$qformat->importpreprocess()) {
 115          print_error('cannotimport', '', $thispageurl->out());
 116      }
 117  
 118      // Process the uploaded file
 119      if (!$qformat->importprocess($category)) {
 120          print_error('cannotimport', '', $thispageurl->out());
 121      }
 122  
 123      // In case anything needs to be done after
 124      if (!$qformat->importpostprocess()) {
 125          print_error('cannotimport', '', $thispageurl->out());
 126      }
 127  
 128      $params = $thispageurl->params() + array(
 129          'category' => $qformat->category->id . ',' . $qformat->category->contextid);
 130      echo $OUTPUT->continue_button(new moodle_url('edit.php', $params));
 131      echo $OUTPUT->footer();
 132      exit;
 133  }
 134  
 135  echo $OUTPUT->heading_with_help($txt->importquestions, 'importquestions', 'question');
 136  
 137  /// Print upload form
 138  $import_form->display();
 139  echo $OUTPUT->footer();