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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   * Edit book chapter
  19   *
  20   * @package    mod_book
  21   * @copyright  2004-2011 Petr Skoda {@link http://skodak.org}
  22   * @license    http://www.gnu.org/copyleft/gpl.html GNU GPL v3 or later
  23   */
  24  
  25  require(__DIR__.'/../../config.php');
  26  require_once (__DIR__.'/locallib.php');
  27  require_once (__DIR__.'/edit_form.php');
  28  
  29  $cmid       = required_param('cmid', PARAM_INT);  // Book Course Module ID
  30  $chapterid  = optional_param('id', 0, PARAM_INT); // Chapter ID
  31  $pagenum    = optional_param('pagenum', 0, PARAM_INT);
  32  $subchapter = optional_param('subchapter', 0, PARAM_BOOL);
  33  
  34  $cm = get_coursemodule_from_id('book', $cmid, 0, false, MUST_EXIST);
  35  $course = $DB->get_record('course', array('id'=>$cm->course), '*', MUST_EXIST);
  36  $book = $DB->get_record('book', array('id'=>$cm->instance), '*', MUST_EXIST);
  37  
  38  require_login($course, false, $cm);
  39  
  40  $context = context_module::instance($cm->id);
  41  require_capability('mod/book:edit', $context);
  42  
  43  $PAGE->set_url('/mod/book/edit.php', array('cmid'=>$cmid, 'id'=>$chapterid, 'pagenum'=>$pagenum, 'subchapter'=>$subchapter));
  44  $PAGE->set_pagelayout('admin'); // TODO: Something. This is a bloody hack!
  45  
  46  if ($chapterid) {
  47      $chapter = $DB->get_record('book_chapters', array('id'=>$chapterid, 'bookid'=>$book->id), '*', MUST_EXIST);
  48  } else {
  49      $chapter = new stdClass();
  50      $chapter->id         = null;
  51      $chapter->subchapter = $subchapter;
  52      $chapter->pagenum    = $pagenum + 1;
  53  }
  54  $chapter->cmid = $cm->id;
  55  
  56  $options = array('noclean'=>true, 'subdirs'=>true, 'maxfiles'=>-1, 'maxbytes'=>0, 'context'=>$context);
  57  $chapter = file_prepare_standard_editor($chapter, 'content', $options, $context, 'mod_book', 'chapter', $chapter->id);
  58  
  59  $mform = new book_chapter_edit_form(null, array('chapter'=>$chapter, 'options'=>$options));
  60  
  61  // If data submitted, then process and store.
  62  if ($mform->is_cancelled()) {
  63      if (empty($chapter->id)) {
  64          redirect("view.php?id=$cm->id");
  65      } else {
  66          redirect("view.php?id=$cm->id&chapterid=$chapter->id");
  67      }
  68  
  69  } else if ($data = $mform->get_data()) {
  70  
  71      if ($data->id) {
  72          // store the files
  73          $data->timemodified = time();
  74          $data = file_postupdate_standard_editor($data, 'content', $options, $context, 'mod_book', 'chapter', $data->id);
  75          $DB->update_record('book_chapters', $data);
  76          $DB->set_field('book', 'revision', $book->revision+1, array('id'=>$book->id));
  77          $chapter = $DB->get_record('book_chapters', array('id' => $data->id));
  78  
  79          \mod_book\event\chapter_updated::create_from_chapter($book, $context, $chapter)->trigger();
  80  
  81      } else {
  82          // adding new chapter
  83          $data->bookid        = $book->id;
  84          $data->hidden        = 0;
  85          $data->timecreated   = time();
  86          $data->timemodified  = time();
  87          $data->importsrc     = '';
  88          $data->content       = '';          // updated later
  89          $data->contentformat = FORMAT_HTML; // updated later
  90  
  91          // make room for new page
  92          $sql = "UPDATE {book_chapters}
  93                     SET pagenum = pagenum + 1
  94                   WHERE bookid = ? AND pagenum >= ?";
  95          $DB->execute($sql, array($book->id, $data->pagenum));
  96  
  97          $data->id = $DB->insert_record('book_chapters', $data);
  98  
  99          // store the files
 100          $data = file_postupdate_standard_editor($data, 'content', $options, $context, 'mod_book', 'chapter', $data->id);
 101          $DB->update_record('book_chapters', $data);
 102          $DB->set_field('book', 'revision', $book->revision+1, array('id'=>$book->id));
 103          $chapter = $DB->get_record('book_chapters', array('id' => $data->id));
 104  
 105          \mod_book\event\chapter_created::create_from_chapter($book, $context, $chapter)->trigger();
 106      }
 107  
 108      book_preload_chapters($book); // fix structure
 109      redirect("view.php?id=$cm->id&chapterid=$data->id");
 110  }
 111  
 112  // Otherwise fill and print the form.
 113  $PAGE->set_title($book->name);
 114  $PAGE->set_heading($course->fullname);
 115  
 116  echo $OUTPUT->header();
 117  echo $OUTPUT->heading($book->name);
 118  
 119  $mform->display();
 120  
 121  echo $OUTPUT->footer();