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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   * Action for adding a question page.  Prints an HTML form.
  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  require_once("../../config.php");
  27  require_once($CFG->dirroot.'/mod/lesson/locallib.php');
  28  require_once ('editpage_form.php');
  29  
  30  // first get the preceeding page
  31  $pageid = required_param('pageid', PARAM_INT);
  32  $id     = required_param('id', PARAM_INT);         // Course Module ID
  33  $qtype  = optional_param('qtype', 0, PARAM_INT);
  34  $edit   = optional_param('edit', false, PARAM_BOOL);
  35  $returnto = optional_param('returnto', null, PARAM_URL);
  36  if (empty($returnto)) {
  37      $returnto = new moodle_url('/mod/lesson/edit.php', array('id' => $id));
  38      $returnto->set_anchor('lesson-' . $pageid);
  39  }
  40  
  41  $cm = get_coursemodule_from_id('lesson', $id, 0, false, MUST_EXIST);
  42  $course = $DB->get_record('course', array('id' => $cm->course), '*', MUST_EXIST);
  43  $lesson = new lesson($DB->get_record('lesson', array('id' => $cm->instance), '*', MUST_EXIST));
  44  
  45  require_login($course, false, $cm);
  46  
  47  $context = context_module::instance($cm->id);
  48  require_capability('mod/lesson:edit', $context);
  49  
  50  $PAGE->set_url('/mod/lesson/editpage.php', array('pageid'=>$pageid, 'id'=>$id, 'qtype'=>$qtype));
  51  $PAGE->set_pagelayout('admin');
  52  
  53  if ($edit) {
  54      $editpage = lesson_page::load($pageid, $lesson);
  55      $qtype = $editpage->qtype;
  56      $edit = true;
  57  } else {
  58      $edit = false;
  59  }
  60  
  61  $jumpto = lesson_page::get_jumptooptions($pageid, $lesson);
  62  $manager = lesson_page_type_manager::get($lesson);
  63  $editoroptions = array('noclean'=>true, 'maxfiles'=>EDITOR_UNLIMITED_FILES, 'maxbytes'=>$CFG->maxbytes);
  64  
  65  // If the previous page was the Question type selection form, this form
  66  // will have a different name (e.g. _qf__lesson_add_page_form_selection
  67  // versus _qf__lesson_add_page_form_multichoice). This causes confusion
  68  // in moodleform::_process_submission because the array key check doesn't
  69  // tie up with the current form name, which in turn means the "submitted"
  70  // check ends up evaluating as false, thus it's not possible to check whether
  71  // the Question type selection was cancelled. For this reason, a dummy form
  72  // is created here solely to check whether the selection was cancelled.
  73  if ($qtype) {
  74      $mformdummy = $manager->get_page_form(0, array(
  75          'editoroptions' => $editoroptions,
  76          'jumpto'        => $jumpto,
  77          'lesson'        => $lesson,
  78          'edit'          => $edit,
  79          'maxbytes'      => $PAGE->course->maxbytes,
  80          'returnto'      => $returnto
  81      ));
  82      if ($mformdummy->is_cancelled()) {
  83          redirect($returnto);
  84          exit;
  85      }
  86  }
  87  
  88  $mform = $manager->get_page_form($qtype, array(
  89      'editoroptions' => $editoroptions,
  90      'jumpto'        => $jumpto,
  91      'lesson'        => $lesson,
  92      'edit'          => $edit,
  93      'maxbytes'      => $PAGE->course->maxbytes,
  94      'returnto'      => $returnto
  95  ));
  96  
  97  if ($mform->is_cancelled()) {
  98      redirect($returnto);
  99      exit;
 100  }
 101  
 102  if ($edit) {
 103      $data = $editpage->properties();
 104      $data->pageid = $editpage->id;
 105      $data->id = $cm->id;
 106      $editoroptions['context'] = $context;
 107      $data = file_prepare_standard_editor($data, 'contents', $editoroptions, $context, 'mod_lesson', 'page_contents',  $editpage->id);
 108  
 109      $answerscount = 0;
 110      $answers = $editpage->get_answers();
 111      foreach ($answers as $answer) {
 112          $answereditor = 'answer_editor['.$answerscount.']';
 113          if (is_array($data->$answereditor)) {
 114              $answerdata = $data->$answereditor;
 115              if ($mform->get_answer_format() === LESSON_ANSWER_HTML) {
 116                  $answerdraftid = file_get_submitted_draft_itemid($answereditor);
 117                  $answertext = file_prepare_draft_area($answerdraftid, $PAGE->cm->context->id,
 118                          'mod_lesson', 'page_answers', $answer->id, $editoroptions, $answerdata['text']);
 119                  $data->$answereditor = array('text' => $answertext, 'format' => $answerdata['format'], 'itemid' => $answerdraftid);
 120              } else {
 121                  $data->$answereditor = $answerdata['text'];
 122              }
 123          }
 124  
 125          $responseeditor = 'response_editor['.$answerscount.']';
 126          if (is_array($data->$responseeditor)) {
 127              $responsedata = $data->$responseeditor;
 128              if ($mform->get_response_format() === LESSON_ANSWER_HTML) {
 129                  $responsedraftid = file_get_submitted_draft_itemid($responseeditor);
 130                  $responsetext = file_prepare_draft_area($responsedraftid, $PAGE->cm->context->id,
 131                          'mod_lesson', 'page_responses', $answer->id, $editoroptions, $responsedata['text']);
 132                  $data->$responseeditor = array('text' => $responsetext, 'format' => $responsedata['format'],
 133                          'itemid' => $responsedraftid);
 134              } else {
 135                  $data->$responseeditor = $responsedata['text'];
 136              }
 137          }
 138          $answerscount++;
 139      }
 140  
 141      $mform->set_data($data);
 142      $PAGE->navbar->add(get_string('edit'), new moodle_url('/mod/lesson/edit.php', array('id'=>$id)));
 143      $PAGE->navbar->add(get_string('editingquestionpage', 'lesson', get_string($mform->qtypestring, 'lesson')));
 144  } else {
 145      // Give the page type being created a chance to override the creation process
 146      // this is used by endofbranch, cluster, and endofcluster to skip the creation form.
 147      // IT SHOULD ALWAYS CALL require_sesskey();
 148      $mform->construction_override($pageid, $lesson);
 149  
 150      $data = new stdClass;
 151      $data->id = $cm->id;
 152      $data->pageid = $pageid;
 153      if ($qtype) {
 154          //TODO: the handling of form for the selection of question type is a bloody hack! (skodak)
 155          $data->qtype = $qtype;
 156      }
 157      $data = file_prepare_standard_editor($data, 'contents', $editoroptions, null);
 158      $mform->set_data($data);
 159      $PAGE->navbar->add(get_string('addanewpage', 'lesson'), $PAGE->url);
 160      if ($qtype !== 'unknown') {
 161          $PAGE->navbar->add(get_string($mform->qtypestring, 'lesson'));
 162      }
 163  }
 164  
 165  if ($data = $mform->get_data()) {
 166      require_sesskey();
 167      if ($edit) {
 168          $data->lessonid = $data->id;
 169          $data->id = $data->pageid;
 170          unset($data->pageid);
 171          unset($data->edit);
 172          $editpage->update($data, $context, $PAGE->course->maxbytes);
 173      } else {
 174          $editpage = lesson_page::create($data, $lesson, $context, $PAGE->course->maxbytes);
 175      }
 176      redirect($returnto);
 177  }
 178  
 179  $lessonoutput = $PAGE->get_renderer('mod_lesson');
 180  echo $lessonoutput->header($lesson, $cm, '', false, null, get_string('edit', 'lesson'));
 181  $mform->display();
 182  echo $lessonoutput->footer();