mod/glossary/comment.php

   1 <?php // $Id$
   2
   3 require_once('../../config.php');
   4 require_once('lib.php');
   5 require_once('comment_form.php');
   6
   7 $action = optional_param('action','add', PARAM_ACTION);
   8
   9 if (isguest()) {
  10     error('Guests are not allowed to post comments!');
  11 }
  12
  13 switch ($action) {
  14     case 'add':
  15         glossary_comment_add();
  16         die;
  17     case 'delete':
  18         glossary_comment_delete();
  19         die;
  20     case 'edit':
  21         glossary_comment_edit();
  22         die;
  23     default:
  24         error('Incorrect action specified');
  25 }
  26
  27 /**
  28  * Add new comment
  29  */
  30 function glossary_comment_add() {
  31     global $USER;
  32
  33     $eid = optional_param('eid', 0, PARAM_INT); // Entry ID
  34
  35     if (!$entry = get_record('glossary_entries', 'id', $eid)) {
  36         error('Entry is incorrect');
  37     }
  38     if (!$glossary = get_record('glossary', 'id', $entry->glossaryid)) {
  39         error('Incorrect glossary');
  40     }
  41     if (!$cm = get_coursemodule_from_instance('glossary', $glossary->id)) {
  42         error('Course Module ID was incorrect');
  43     }
  44     if (!$course = get_record('course', 'id', $cm->course)) {
  45         error('Course is misconfigured');
  46     }
  47
  48     require_login($course->id, false, $cm);
  49     $context = get_context_instance(CONTEXT_MODULE, $cm->id);
  50     /// Both the configuration and capability must allow comments
  51     if (!$glossary->allowcomments or !has_capability('mod/glossary:comment', $context)) {
  52         error('You can\'t add comments to this glossary!');
  53     }
  54
  55     $mform = new mod_glossary_comment_form();
  56     $mform->set_data(array('eid'=>$eid, 'action'=>'add'));
  57
  58     if ($mform->is_cancelled()) {
  59         redirect("comments.php?id=$cm->id&amp;eid=$entry->id");
  60     }
  61
  62     if ($data = $mform->get_data()) {
  63         trusttext_after_edit($data->entrycomment, $context);
  64
  65         $newcomment = new object();
  66         $newcomment->entryid      = $entry->id;
  67         $newcomment->entrycomment = $data->entrycomment;
  68         $newcomment->format       = $data->format;
  69         $newcomment->timemodified = time();
  70         $newcomment->userid       = $USER->id;
  71
  72         if (!$newcomment->id = insert_record('glossary_comments', $newcomment)) {
  73             error('Could not insert this new comment');
  74         } else {
  75             add_to_log($course->id, 'glossary', 'add comment', "comments.php?id=$cm->id&amp;eid=$entry->id", "$newcomment->id", $cm->id);
  76         }
  77         redirect("comments.php?id=$cm->id&amp;eid=$entry->id");
  78
  79     } else {
  80         glossary_comment_print_header($course, $cm, $glossary, $entry, 'add');
  81         $mform->display();
  82         print_footer($course);
  83         die;
  84     }
  85 }
  86
  87 /**
  88  * Deleting existing comments
  89  */
  90 function glossary_comment_delete() {
  91     global $USER;
  92
  93     $cid     = optional_param('cid', 0, PARAM_INT);      // Comment ID
  94     $confirm = optional_param('confirm', 0, PARAM_BOOL); // delete confirmation
  95
  96     if (!$comment = get_record('glossary_comments', 'id', $cid)) {
  97         error('Comment is incorrect');
  98     }
  99     if (!$entry = get_record('glossary_entries', 'id', $comment->entryid)) {
 100         error('Entry is incorrect');
 101     }
 102     if (!$glossary = get_record('glossary', 'id', $entry->glossaryid)) {
 103         error('Incorrect glossary');
 104     }
 105     if (!$cm = get_coursemodule_from_instance('glossary', $glossary->id)) {
 106         error('Course Module ID was incorrect');
 107     }
 108     if (!$course = get_record('course', 'id', $cm->course)) {
 109         error('Course is misconfigured');
 110     }
 111
 112     require_login($course->id, false, $cm);
 113     $context = get_context_instance(CONTEXT_MODULE, $cm->id);
 114     if (($comment->userid <> $USER->id) and !has_capability('mod/glossary:managecomments', $context)) {
 115         error('You can\'t delete other people\'s comments!');
 116     }
 117     if (!$glossary->allowcomments and !has_capability('mod/glossary:managecomments', $context)) {
 118         error('You can\'t delete comments in this glossary!');
 119     }
 120
 121     if (data_submitted() and $confirm) {
 122         delete_records('glossary_comments','id', $cid);
 123         add_to_log($course->id, 'glossary', 'delete comment', "comments.php?id=$cm->id&amp;eid=$entry->id", "$comment->id",$cm->id);
 124         redirect("comments.php?id=$cm->id&amp;eid=$entry->id");
 125
 126     } else {
 127         $linkyes    = 'comment.php';
 128         $optionsyes = array('action'=>'delete', 'cid'=>$cid, 'confirm'=>1);
 129         $linkno     = 'comments.php';
 130         $optionsno  = array('id'=>$cm->id, 'eid'=>$entry->id);
 131         $strdeletewarning = get_string('areyousuredeletecomment','glossary');
 132
 133         glossary_comment_print_header($course, $cm, $glossary, $entry, 'delete');
 134         glossary_print_comment($course, $cm, $glossary, $entry, $comment);
 135         notice_yesno($strdeletewarning, $linkyes, $linkno, $optionsyes, $optionsno, 'post', 'get');
 136         print_footer($course);
 137         die;
 138     }
 139 }
 140
 141 /**
 142  * Edit existing comments
 143  */
 144 function glossary_comment_edit() {
 145     global $CFG, $USER;
 146
 147     $cid = optional_param('cid', 0, PARAM_INT); // Comment ID
 148
 149     if (!$comment = get_record('glossary_comments', 'id', $cid)) {
 150         error('Comment is incorrect');
 151     }
 152     if (!$entry = get_record('glossary_entries', 'id', $comment->entryid)) {
 153         error('Entry is incorrect');
 154     }
 155     if (!$glossary = get_record('glossary', 'id', $entry->glossaryid)) {
 156         error('Incorrect glossary');
 157     }
 158     if (!$cm = get_coursemodule_from_instance('glossary', $glossary->id)) {
 159         error('Course Module ID was incorrect');
 160     }
 161     if (!$course = get_record('course', 'id', $cm->course)) {
 162         error('Course is misconfigured');
 163     }
 164
 165     require_login($course->id, false, $cm);
 166     $context = get_context_instance(CONTEXT_MODULE, $cm->id);
 167     if (!$glossary->allowcomments and !has_capability('mod/glossary:managecomments', $context)) {
 168         error('You can\'t edit comments in this glossary!');
 169     }
 170     if (($comment->userid <> $USER->id) and !has_capability('mod/glossary:managecomments', $context)) {
 171         error('You can\'t edit other people\'s comments!');
 172     }
 173     $ineditperiod = ((time() - $comment->timemodified <  $CFG->maxeditingtime) || $glossary->editalways);
 174     if ((!has_capability('mod/glossary:comment', $context) or !$ineditperiod) and !has_capability('mod/glossary:managecomments', $context)) {
 175         error('You can\'t edit this. Time expired!');
 176     }
 177
 178     $mform = new mod_glossary_comment_form();
 179     trusttext_prepare_edit($comment->entrycomment, $comment->format, can_use_html_editor(), $context);
 180     $mform->set_data(array('cid'=>$cid, 'action'=>'edit', 'entrycomment'=>$comment->entrycomment, 'format'=>$comment->format));
 181
 182     if ($data = $mform->get_data()) {
 183         trusttext_after_edit($data->entrycomment, $context);
 184
 185         $updatedcomment = new object();
 186         $updatedcomment->id           = $cid;
 187         $updatedcomment->entrycomment = $data->entrycomment;
 188         $updatedcomment->format       = $data->format;
 189         $updatedcomment->timemodified = time();
 190
 191         if (!update_record('glossary_comments', $updatedcomment)) {
 192             error('Could not update this comment');
 193         } else {
 194             add_to_log($course->id, 'glossary', 'update comment', "comments.php?id=$cm->id&amp;eid=$entry->id", "$updatedcomment->id",$cm->id);
 195         }
 196         redirect("comments.php?id=$cm->id&amp;eid=$entry->id");
 197
 198     } else {
 199         glossary_comment_print_header($course, $cm, $glossary, $entry, 'edit');
 200         $mform->display();
 201         print_footer($course);
 202         die;
 203     }
 204 }
 205
 206 //////////////////////////////////
 207 /// utility functions
 208 //////////////////////////////////
 209
 210 function glossary_comment_print_header($course, $cm, $glossary, $entry, $action) {
 211     switch ($action){
 212         case 'add':
 213             $straction = get_string('addingcomment','glossary');
 214             break;
 215         case 'edit':
 216             $straction = get_string('editingcomment','glossary');
 217             break;
 218         case 'delete':
 219             $straction = get_string('deletingcomment','glossary');
 220             break;
 221     }
 222
 223     $strglossaries = get_string('modulenameplural', 'glossary');
 224     $strglossary   = get_string('modulename', 'glossary');
 225     $strcomments   = get_string('comments', 'glossary');
 226
 227     $navlinks = array();
 228     $navlinks[] = array('name' => $strglossaries, 'link' => "index.php?id=$course->id", 'type' => 'activity');
 229     $navlinks[] = array('name' => format_string($glossary->name,true), 'link' => "view.php?id=$cm->id", 'type' => 'activityinstance');
 230     $navlinks[] = array('name' => $strcomments, 'link' => "comments.php?id=$cm->id&amp;eid=$entry->id", 'type' => 'title');
 231     $navlinks[] = array('name' => $straction, 'link' => '', 'type' => 'action');
 232
 233     $navigation = build_navigation($navlinks);
 234
 235     print_header_simple(format_string($glossary->name), '', $navigation,
 236         '', '', true, update_module_button($cm->id, $course->id, $strglossary),
 237         navmenu($course, $cm));
 238 /// print original glossary entry for any comment action (add, update, delete)
 239     glossary_print_entry($course, $cm, $glossary, $entry, 'approval', '', false);
 240 }
 241 ?>