mod/assign/feedback/editpdf/ajax.php

   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  * Process ajax requests
  19  *
  20  * @package assignfeedback_editpdf
  21  * @copyright  2012 Davo Smith
  22  * @license   http://www.gnu.org/copyleft/gpl.html GNU GPL v3 or later
  23  */
  24
  25 use \assignfeedback_editpdf\document_services;
  26 use \assignfeedback_editpdf\page_editor;
  27 use \assignfeedback_editpdf\comments_quick_list;
  28
  29 define('AJAX_SCRIPT', true);
  30
  31 require('../../../../config.php');
  32 require_once($CFG->dirroot . '/mod/assign/locallib.php');
  33
  34 require_sesskey();
  35
  36 $action = optional_param('action', '', PARAM_ALPHANUM);
  37 $assignmentid = required_param('assignmentid', PARAM_INT);
  38 $userid = required_param('userid', PARAM_INT);
  39 $attemptnumber = required_param('attemptnumber', PARAM_INT);
  40
  41 $cm = \get_coursemodule_from_instance('assign', $assignmentid, 0, false, MUST_EXIST);
  42 $context = \context_module::instance($cm->id);
  43
  44 $assignment = new \assign($context, null, null);
  45
  46 require_login($assignment->get_course(), false, $cm);
  47
  48 if (!$assignment->can_view_submission($userid)) {
  49     print_error('nopermission');
  50 }
  51
  52 if ($action == 'loadallpages') {
  53     $draft = true;
  54     if (!has_capability('mod/assign:grade', $context)) {
  55         $draft = false;
  56         require_capability('mod/assign:submit', $context);
  57     }
  58
  59     $pages = document_services::get_page_images_for_attempt($assignment,
  60                                                             $userid,
  61                                                             $attemptnumber);
  62
  63     $response = new stdClass();
  64     $response->pagecount = count($pages);
  65     $response->pages = array();
  66
  67     $grade = $assignment->get_user_grade($userid, true);
  68
  69     foreach ($pages as $id => $pagefile) {
  70         $index = count($response->pages);
  71         $page = new stdClass();
  72         $comments = page_editor::get_comments($grade->id, $index, $draft);
  73         $page->url = moodle_url::make_pluginfile_url($context->id,
  74                                                      'assignfeedback_editpdf',
  75                                                      document_services::PAGE_IMAGE_FILEAREA,
  76                                                      $grade->id,
  77                                                      '/',
  78                                                      $pagefile->get_filename())->out();
  79         $page->comments = $comments;
  80         $annotations = page_editor::get_annotations($grade->id, $index, $draft);
  81         $page->annotations = $annotations;
  82         array_push($response->pages, $page);
  83     }
  84
  85     echo json_encode($response);
  86     die();
  87 } else if ($action == 'savepage') {
  88     require_capability('mod/assign:grade', $context);
  89
  90     $response = new stdClass();
  91     $response->errors = array();
  92
  93     $grade = $assignment->get_user_grade($userid, true);
  94
  95     $pagejson = required_param('page', PARAM_RAW);
  96     $page = json_decode($pagejson);
  97     $index = required_param('index', PARAM_INT);
  98
  99     $added = page_editor::set_comments($grade->id, $index, $page->comments);
 100     if ($added != count($page->comments)) {
 101         array_push($response->errors, get_string('couldnotsavepage', 'assignfeedback_editpdf', $index+1));
 102     }
 103     $added = page_editor::set_annotations($grade->id, $index, $page->annotations);
 104     if ($added != count($page->annotations)) {
 105         array_push($response->errors, get_string('couldnotsavepage', 'assignfeedback_editpdf', $index+1));
 106     }
 107     echo json_encode($response);
 108     die();
 109
 110 } else if ($action == 'generatepdf') {
 111
 112     require_capability('mod/assign:grade', $context);
 113     $response = new stdClass();
 114     $grade = $assignment->get_user_grade($userid, true);
 115     $file = document_services::generate_feedback_document($assignment, $userid, $attemptnumber);
 116
 117     $response->url = '';
 118     if ($file) {
 119         $url = moodle_url::make_pluginfile_url($assignment->get_context()->id,
 120                                                'assignfeedback_editpdf',
 121                                                document_services::FINAL_PDF_FILEAREA,
 122                                                $grade->id,
 123                                                '/',
 124                                                $file->get_filename(),
 125                                                false);
 126         $response->url = $url->out(true);
 127         $response->filename = $file->get_filename();
 128     }
 129
 130     echo json_encode($response);
 131     die();
 132 } else if ($action == 'loadquicklist') {
 133     require_capability('mod/assign:grade', $context);
 134
 135     $result = comments_quick_list::get_comments();
 136
 137     echo json_encode($result);
 138     die();
 139
 140 } else if ($action == 'addtoquicklist') {
 141     require_capability('mod/assign:grade', $context);
 142
 143     $comment = required_param('commenttext', PARAM_RAW);
 144     $width = required_param('width', PARAM_INT);
 145     $colour = required_param('colour', PARAM_ALPHA);
 146
 147     $result = comments_quick_list::add_comment($comment, $width, $colour);
 148
 149     echo json_encode($result);
 150     die();
 151 } else if ($action == 'revertchanges') {
 152     require_capability('mod/assign:grade', $context);
 153
 154     $grade = $assignment->get_user_grade($userid, true);
 155
 156     $result = page_editor::revert_drafts($gradeid);
 157
 158     echo json_encode($result);
 159     die();
 160 } else if ($action == 'removefromquicklist') {
 161     require_capability('mod/assign:grade', $context);
 162
 163     $commentid = required_param('commentid', PARAM_INT);
 164
 165     $result = comments_quick_list::remove_comment($commentid);
 166
 167     echo json_encode($result);
 168     die();
 169 } else if ($action == 'deletefeedbackdocument') {
 170     require_capability('mod/assign:grade', $context);
 171
 172     $grade = $assignment->get_user_grade($userid, true);
 173     $result = document_services::delete_feedback_document($assignment, $userid, $attemptnumber);
 174
 175     $result = $result && page_editor::unrelease_drafts($grade->id);
 176     echo json_encode($result);
 177     die();
 178 }
 179