comment.module 59 KB
Newer Older
1
<?php
2
// $Id$
Dries's avatar
 
Dries committed
3

Dries's avatar
Dries committed
4 5
/**
 * @file
Dries's avatar
 
Dries committed
6
 * Enables users to comment on published content.
Dries's avatar
Dries committed
7 8 9 10 11 12
 *
 * When enabled, the Drupal comment module creates a discussion
 * board for each Drupal node. Users can post comments to discuss
 * a forum topic, weblog post, story, collaborative book page, etc.
 */

13
/*
Dries's avatar
Dries committed
14
 * Constants to define a comment's published state
15
 */
Dries's avatar
Dries committed
16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59
define('COMMENT_PUBLISHED', 0);
define('COMMENT_NOT_PUBLISHED', 1);

/**
 * Constants to define the viewing modes for comment listings
 */
define('COMMENT_MODE_FLAT_COLLAPSED', 0);
define('COMMENT_MODE_FLAT_EXPANDED', 1);
define('COMMENT_MODE_THREADED_COLLAPSED', 2);
define('COMMENT_MODE_THREADED_EXPANDED', 3);

/**
 * Constants to define the viewing orders for comment listings
 */
define('COMMENT_ORDER_NEWEST_FIRST', 0);
define('COMMENT_ORDER_OLDEST_FIRST', 1);

/**
 * Constants to define the position of the comment controls
 */
define('COMMENT_CONTROLS_ABOVE', 0);
define('COMMENT_CONTROLS_BELOW', 1);
define('COMMENT_CONTROLS_ABOVE_BELOW', 2);
define('COMMENT_CONTROLS_HIDDEN', 3);

/**
 * Constants to define the anonymous poster contact handling
 */
define('COMMENT_ANONYMOUS_MAYNOT_CONTACT', 0);
define('COMMENT_ANONYMOUS_MAY_CONTACT', 1);
define('COMMENT_ANONYMOUS_MUST_CONTACT', 2);

/**
 * Constants to define the comment form location
 */
define('COMMENT_FORM_SEPARATE_PAGE', 0);
define('COMMENT_FORM_BELOW', 1);

/**
 * Constants to define a node's comment state
 */
define('COMMENT_NODE_DISABLED', 0);
define('COMMENT_NODE_READ_ONLY', 1);
define('COMMENT_NODE_READ_WRITE', 2);
60

61 62 63 64 65 66
/**
 * Constants to define if comment preview is optional or required
 */
define('COMMENT_PREVIEW_OPTIONAL', 0);
define('COMMENT_PREVIEW_REQUIRED', 1);

67 68 69
/**
 * Implementation of hook_help().
 */
70
function comment_help($section) {
Dries's avatar
 
Dries committed
71
  switch ($section) {
Dries's avatar
 
Dries committed
72
    case 'admin/help#comment':
73 74 75 76 77 78 79 80 81 82 83 84
      $output = '<p>'. t('The comment module creates a discussion board for each post. Users can post comments to discuss a forum topic, weblog post, story, collaborative book page, etc. The ability to comment is an important part of involving members in a communtiy dialogue.') .'</p>';
      $output .= '<p>'. t('An administrator can give comment permissions to user groups, and users can (optionally) edit their last comment, assuming no others have been posted since.  Attached to each comment board is a control panel for customizing the way that comments are displayed. Users can control the chronological ordering of posts (newest or oldest first) and the number of posts to display on each page.  Comments behave like other user submissions. Filters, smileys and HTML that work in nodes will also work with comments. The comment module provides specific features to inform site members when new comments have been posted. On sites with active commenting from users, the administrator can turn over comment moderation to the community.') .'</p>';
      $output .= t('<p>You can</p>
<ul>
<li>control access for various comment module functions through access permissions <a href="%admin-access">administer &gt;&gt; access control</a>.</li>
<li>administer comments <a href="%admin-comment-configure"> administer &gt;&gt; comments &gt;&gt; configure</a>.</li>
</ul>
', array('%admin-access' => url('admin/access'), '%admin-comment-configure' => url('admin/comment/configure')));
      $output .= '<p>'. t('For more information please read the configuration and customization handbook <a href="%comment">Comment page</a>.', array('%comment' => 'http://www.drupal.org/handbook/modules/comment/')) .'</p>';
      return $output;
    case 'admin/modules#description':
      return t('Allows users to comment on and discuss published content.');
Dries's avatar
 
Dries committed
85
    case 'admin/comment':
86
    case 'admin/comment/new':
87
      return t("<p>Below is a list of the latest comments posted to your site. Click on a subject to see the comment, the author's name to edit the author's user information , \"edit\" to modify the text, and \"delete\" to remove their submission.</p>");
Dries's avatar
 
Dries committed
88
    case 'admin/comment/approval':
89
      return t("<p>Below is a list of the comments posted to your site that need approval. To approve a comment, click on \"edit\" and then change its \"moderation status\" to Approved. Click on a subject to see the comment, the author's name to edit the author's user information, \"edit\" to modify the text, and \"delete\" to remove their submission.</p>");
Dries's avatar
Dries committed
90 91
    case 'admin/comment/configure':
    case 'admin/comment/configure/settings':
92
      return t("<p>Comments can be attached to any node, and their settings are below. The display comes in two types: a \"flat list\" where everything is flush to the left side, and comments come in chronological order, and a \"threaded list\" where replies to other comments are placed immediately below and slightly indented, forming an outline. They also come in two styles: \"expanded\", where you see both the title and the contents, and \"collapsed\" where you only see the title. Preview comment forces a user to look at their comment by clicking on a \"Preview\" button before they can actually add the comment.</p>");
93
   }
Dries's avatar
 
Dries committed
94 95
}

Dries's avatar
 
Dries committed
96 97 98
/**
 * Implementation of hook_menu().
 */
Dries's avatar
 
Dries committed
99
function comment_menu($may_cache) {
Dries's avatar
 
Dries committed
100 101
  $items = array();

Dries's avatar
 
Dries committed
102 103 104 105 106 107 108 109 110 111 112 113 114 115 116 117
  if ($may_cache) {
    $access = user_access('administer comments');
    $items[] = array('path' => 'admin/comment', 'title' => t('comments'),
      'callback' => 'comment_admin_overview', 'access' => $access);

    // Tabs:
    $items[] = array('path' => 'admin/comment/list', 'title' => t('list'),
      'type' => MENU_DEFAULT_LOCAL_TASK, 'weight' => -10);
    $items[] = array('path' => 'admin/comment/configure', 'title' => t('configure'),
      'callback' => 'comment_configure', 'access' => $access, 'type' => MENU_LOCAL_TASK);

    // Subtabs:
    $items[] = array('path' => 'admin/comment/list/new', 'title' => t('new comments'),
      'type' => MENU_DEFAULT_LOCAL_TASK, 'weight' => -10);
    $items[] = array('path' => 'admin/comment/list/approval', 'title' => t('approval queue'),
      'callback' => 'comment_admin_overview', 'access' => $access,
118
      'callback arguments' => array('approval'),
Dries's avatar
 
Dries committed
119 120 121 122 123 124
      'type' => MENU_LOCAL_TASK);

    $items[] = array('path' => 'admin/comment/configure/settings', 'title' => t('settings'),
      'type' => MENU_DEFAULT_LOCAL_TASK, 'weight' => -10);

    $access = user_access('post comments');
125
    $items[] = array('path' => 'comment/edit', 'title' => t('edit comment'),
Dries's avatar
 
Dries committed
126
      'callback' => 'comment_edit', 'access' => $access, 'type' => MENU_CALLBACK);
127 128
    $items[] = array('path' => 'comment/delete', 'title' => t('delete comment'),
      'callback' => 'comment_delete', 'access' => $access, 'type' => MENU_CALLBACK);
Dries's avatar
 
Dries committed
129
  }
Dries's avatar
 
Dries committed
130 131
  else {
    if (arg(0) == 'comment' && arg(1) == 'reply' && is_numeric(arg(2))) {
132
      $node = node_load(arg(2));
Dries's avatar
 
Dries committed
133 134 135 136 137 138 139 140 141 142
      if ($node->nid) {
        $items[] = array('path' => 'comment/reply', 'title' => t('reply to comment'),
          'callback' => 'comment_reply', 'access' => node_access('view', $node), 'type' => MENU_CALLBACK);
      }
    }
    if ((arg(0) == 'node') && is_numeric(arg(1)) && is_numeric(arg(2))) {
      $items[] = array('path' => ('node/'. arg(1) .'/'. arg(2)), 'title' => t('view'),
        'callback' => 'node_page',
        'type' => MENU_CALLBACK);
    }
Dries's avatar
 
Dries committed
143
  }
Dries's avatar
 
Dries committed
144 145 146 147 148 149 150 151

  return $items;
}

/**
 * Implementation of hook_perm().
 */
function comment_perm() {
152
  return array('access comments', 'post comments', 'administer comments', 'post comments without approval');
Dries's avatar
 
Dries committed
153 154 155 156 157 158 159 160 161 162 163 164
}

/**
 * Implementation of hook_block().
 *
 * Generates a block with the most recent comments.
 */
function comment_block($op = 'list', $delta = 0) {
  if ($op == 'list') {
    $blocks[0]['info'] = t('Recent comments');
    return $blocks;
  }
165
  else if ($op == 'view' && user_access('access comments')) {
166
    $result = db_query_range(db_rewrite_sql('SELECT c.nid, c.* FROM {comments} c INNER JOIN {node} n ON n.nid = c.nid WHERE n.status = 1 AND c.status = %d ORDER BY c.timestamp DESC', 'c'), COMMENT_PUBLISHED, 0, 10);
Dries's avatar
 
Dries committed
167 168
    $items = array();
    while ($comment = db_fetch_object($result)) {
Dries's avatar
 
Dries committed
169
      $items[] = l($comment->subject, 'node/'. $comment->nid, NULL, NULL, 'comment-'. $comment->cid) .'<br />'. t('%time ago', array('%time' => format_interval(time() - $comment->timestamp)));
Dries's avatar
 
Dries committed
170 171 172 173 174 175 176 177 178 179 180 181 182 183 184 185 186 187 188 189 190 191 192 193 194 195 196 197 198 199 200
    }

    $block['subject'] = t('Recent comments');
    $block['content'] = theme('item_list', $items);
    return $block;
  }
}

/**
 * Implementation of hook_link().
 */
function comment_link($type, $node = 0, $main = 0) {
  $links = array();

  if ($type == 'node' && $node->comment) {

    if ($main) {
      // Main page: display the number of comments that have been posted.

      if (user_access('access comments')) {
        $all = comment_num_all($node->nid);
        $new = comment_num_new($node->nid);

        if ($all) {
          $links[] = l(format_plural($all, '1 comment', '%count comments'), "node/$node->nid", array('title' => t('Jump to the first comment of this posting.')), NULL, 'comment');

          if ($new) {
            $links[] = l(format_plural($new, '1 new comment', '%count new comments'), "node/$node->nid", array('title' => t('Jump to the first new comment of this posting.')), NULL, 'new');
          }
        }
        else {
Dries's avatar
Dries committed
201
          if ($node->comment == COMMENT_NODE_READ_WRITE) {
Dries's avatar
 
Dries committed
202 203 204 205 206 207 208 209 210 211 212 213 214 215
            if (user_access('post comments')) {
              $links[] = l(t('add new comment'), "comment/reply/$node->nid", array('title' => t('Add a new comment to this page.')));
            }
            else {
              $links[] = theme('comment_post_forbidden');
            }
          }
        }
      }
    }
    else {
      // Node page: add a "post comment" link if the user is allowed to
      // post comments, if this node is not read-only, and if the comment form isn't already shown

Dries's avatar
Dries committed
216
      if ($node->comment == COMMENT_NODE_READ_WRITE && variable_get('comment_form_location', COMMENT_FORM_SEPARATE_PAGE) == COMMENT_FORM_SEPARATE_PAGE) {
Dries's avatar
 
Dries committed
217 218 219 220 221 222 223 224 225 226 227 228 229 230 231 232 233 234 235
        if (user_access('post comments')) {
          $links[] = l(t('add new comment'), "comment/reply/$node->nid", array('title' => t('Share your thoughts and opinions related to this posting.')), NULL, 'comment');
        }
        else {
          $links[] = theme('comment_post_forbidden');
        }
      }
    }
  }

  if ($type == 'comment') {
    $links = comment_links($node, $main);
  }

  return $links;
}

/**
 * Implementation of hook_nodeapi().
Dries's avatar
 
Dries committed
236
 *
Dries's avatar
 
Dries committed
237 238 239 240
 */
function comment_nodeapi(&$node, $op, $arg = 0) {
  switch ($op) {
    case 'settings':
Dries's avatar
Dries committed
241
      $form['comment_'. $node->type] = array('#type' => 'radios', '#title' => t('Default comment setting'), '#default_value' => variable_get('comment_'. $node->type, COMMENT_NODE_READ_WRITE), '#options' => array(t('Disabled'), t('Read only'), t('Read/Write')), '#description' => t('Users with the <em>administer comments</em> permission will be able to override this setting.'));
242
      return $form;
Dries's avatar
 
Dries committed
243 244
    case 'fields':
      return array('comment');
245

246
    case 'form':
Dries's avatar
 
Dries committed
247
      if (user_access('administer comments')) {
Dries's avatar
Dries committed
248
        $selected = isset($node->comment) ? $node->comment : variable_get("comment_$node->type", COMMENT_NODE_READ_WRITE);
249 250
        $form['user_comments'] = array('#type' => 'fieldset', '#title' => t('User Comments'), '#collapsible' => TRUE, '#collapsed' => TRUE);
        $form['user_comments']['comment'] = array('#type' => 'radios', '#parents' => array('comment'), '#default_value' => $selected, '#options' => array(t('Disabled'), t('Read only'), t('Read/Write')));
251
        return $form;
Dries's avatar
 
Dries committed
252 253
      }
      break;
254

Dries's avatar
 
Dries committed
255
    case 'load':
256
      return db_fetch_array(db_query("SELECT last_comment_timestamp, last_comment_name, comment_count FROM {node_comment_statistics} WHERE nid = %d", $node->nid));
Dries's avatar
 
Dries committed
257
    case 'validate':
258
      if (!user_access('administer comments')) {
Dries's avatar
 
Dries committed
259
        // Force default for normal users:
Dries's avatar
Dries committed
260
        $node->comment = variable_get("comment_$node->type", COMMENT_NODE_READ_WRITE);
Dries's avatar
 
Dries committed
261 262
      }
      break;
263

Dries's avatar
 
Dries committed
264
    case 'insert':
265
      db_query('INSERT INTO {node_comment_statistics} (nid, last_comment_timestamp, last_comment_name, last_comment_uid, comment_count) VALUES (%d, %d, NULL, %d, 0)', $node->nid, $node->created, $node->uid);
Dries's avatar
 
Dries committed
266
      break;
267

Dries's avatar
 
Dries committed
268
    case 'delete':
Dries's avatar
 
Dries committed
269 270
      db_query('DELETE FROM {comments} WHERE nid = %d', $node->nid);
      db_query('DELETE FROM {node_comment_statistics} WHERE nid = %d', $node->nid);
Dries's avatar
 
Dries committed
271
      break;
272

Dries's avatar
Dries committed
273 274
    case 'update index':
      $text = '';
275
      $comments = db_query('SELECT subject, comment, format FROM {comments} WHERE nid = %d AND status = %d', $node->nid, COMMENT_PUBLISHED);
Dries's avatar
Dries committed
276
      while ($comment = db_fetch_object($comments)) {
277
        $text .= '<h2>'. check_plain($comment->subject) .'</h2>'. check_markup($comment->comment, $comment->format, FALSE);
Dries's avatar
Dries committed
278 279
      }
      return $text;
280

Dries's avatar
Dries committed
281 282 283
    case 'search result':
      $comments = db_result(db_query('SELECT comment_count FROM {node_comment_statistics} WHERE nid = %d', $node->nid));
      return format_plural($comments, '1 comment', '%count comments');
284

Steven Wittens's avatar
- Typo  
Steven Wittens committed
285
    case 'rss item':
Steven Wittens's avatar
Steven Wittens committed
286
      return array(array('key' => 'comments', 'value' => url('node/'. $node->nid, NULL, 'comment', TRUE)));
Dries's avatar
 
Dries committed
287 288 289 290 291 292 293 294 295 296 297
  }
}

/**
 * Implementation of hook_user().
 *
 * Provides signature customization for the user's comments.
 */
function comment_user($type, $edit, &$user, $category = NULL) {
  if ($type == 'form' && $category == 'account') {
    // when user tries to edit his own data
298 299
    $form['comment_settings'] = array('#type' => 'fieldset', '#title' => t('Comment settings'), '#collapsible' => TRUE, '#weight' => 4);
    $form['comment_settings']['signature'] = array('#type' => 'textarea', '#title' => t('Signature'), '#default_value' => $edit['comment_settings']['signature'], '#description' => ('Your signature will be publicly displayed at the end of your comments.'));
300 301

    return $form;
Dries's avatar
 
Dries committed
302 303 304
  }
}

305
/**
Dries's avatar
 
Dries committed
306
 * Menu callback; presents the comment settings page.
307
 */
Dries's avatar
 
Dries committed
308
function comment_configure() {
309 310 311 312 313 314 315
  $form['viewing_options'] = array(
    '#type' => 'fieldset',
    '#title' => t('Comment viewing options'),
    '#collapsible' => TRUE,
    '#collapsed' => TRUE,
    '#weight' => 0,
  );
Dries's avatar
 
Dries committed
316

Dries's avatar
Dries committed
317 318 319 320 321
  $form['viewing_options']['comment_default_mode'] = array(
    '#type' => 'radios',
    '#title' => t('Default display mode'),
    '#default_value' => variable_get('comment_default_mode', COMMENT_MODE_THREADED_EXPANDED),
    '#options' => _comment_get_modes(),
322
    '#description' => t('The default view for comments. Expanded views display the body of the comment. Threaded views keep replies together.'),
Dries's avatar
Dries committed
323
  );
324

Dries's avatar
Dries committed
325 326 327 328 329
  $form['viewing_options']['comment_default_order'] = array(
    '#type' => 'radios',
    '#title' => t('Default display order'),
    '#default_value' => variable_get('Default display order', COMMENT_ORDER_NEWEST_FIRST),
    '#options' => _comment_get_orders(),
330
    '#description' => t('The default sorting for new users and anonymous users while viewing comments. These users may change their view using the comment control panel. For registered users, this change is remembered as a persistent user preference.'),
Dries's avatar
Dries committed
331
  );
Dries's avatar
 
Dries committed
332

333
  $form['viewing_options']['comment_default_per_page'] = array(
334 335 336 337
    '#type' => 'select',
    '#title' => t('Default comments per page'),
    '#default_value' => variable_get('comment_default_per_page', 50),
    '#options' => _comment_per_page(),
338
    '#description' => t('Default number of comments for each page: more comments are distributed in several pages.'),
339 340
  );

Dries's avatar
Dries committed
341 342 343 344 345 346 347 348 349
  $form['viewing_options']['comment_controls'] = array(
    '#type' => 'radios',
    '#title' => t('Comment controls'),
    '#default_value' => variable_get('comment_controls', COMMENT_CONTROLS_HIDDEN),
    '#options' => array(
      t('Display above the comments'),
      t('Display below the comments'),
      t('Display above and below the comments'),
      t('Do not display')),
350
    '#description' => t('Position of the comment controls box.  The comment controls let the user change the default display mode and display order of comments.'),
Dries's avatar
Dries committed
351
  );
352

353 354 355 356 357 358 359
  $form['posting_settings'] = array(
    '#type' => 'fieldset',
    '#title' => t('Comment posting settings'),
    '#collapsible' => TRUE,
    '#collapsed' => TRUE,
    '#weight' => 0,
  );
360

Dries's avatar
Dries committed
361 362 363 364 365 366 367 368
  $form['posting_settings']['comment_anonymous'] = array(
    '#type' => 'radios',
    '#title' => t('Comment controls'),
    '#default_value' => variable_get('comment_anonymous', COMMENT_ANONYMOUS_MAYNOT_CONTACT),
    '#options' => array(
      COMMENT_ANONYMOUS_MAYNOT_CONTACT => t('Anonymous posters may not enter their contact information'),
      COMMENT_ANONYMOUS_MAY_CONTACT => t('Anonymous posters may leave their contact information'),
      COMMENT_ANONYMOUS_MUST_CONTACT => t('Anonymous posters must leave their contact information')),
369
    '#description' => t('This feature is only useful if you allow anonymous users to post comments.  See the <a href="%url">permissions page</a>.', array('%url' => url('admin/access/permissions'))),
Dries's avatar
Dries committed
370
  );
371 372

  $form['posting_settings']['comment_subject_field'] = array(
373 374 375 376
    '#type' => 'radios',
    '#title' => t('Comment subject field'),
    '#default_value' => variable_get('comment_subject_field', 1),
    '#options' => array(t('Disabled'), t('Enabled')),
377
    '#description' => t('Can users provide a unique subject for their comments?'),
378 379
  );

380 381 382 383 384 385
  $form['posting_settings']['comment_preview'] = array(
    '#type' => 'radios',
    '#title' => t('Preview comment'),
    '#default_value' => variable_get('comment_preview', COMMENT_PREVIEW_REQUIRED),
    '#options' => array(t('Optional'), t('Required')),
  );
386

Dries's avatar
Dries committed
387 388 389 390
  $form['posting_settings']['comment_form_location'] = array(
    '#type' => 'radios',
    '#title' => t('Location of comment submission form'),
    '#default_value' => variable_get('comment_form_location', COMMENT_FORM_SEPARATE_PAGE),
391
    '#options' => array(t('Display on separate page'), t('Display below post or comments')),
Dries's avatar
Dries committed
392
  );
393 394

  return system_settings_form('comment_settings_form', $form);
Dries's avatar
 
Dries committed
395 396
}

397 398 399 400 401 402 403 404 405 406
/**
 * This is *not* a hook_access() implementation. This function is called
 * to determine whether the current user has access to a particular comment.
 *
 * Authenticated users can edit their comments as long they have not been
 * replied to. This prevents people from changing or revising their
 * statements based on the replies their posts got. Furthermore, users
 * can't reply to their own comments and are encouraged instead to extend
 * their original comment.
 */
Dries's avatar
 
Dries committed
407
function comment_access($op, $comment) {
Dries's avatar
 
Dries committed
408 409
  global $user;

410
  if ($op == 'edit') {
411
    return ($user->uid && $user->uid == $comment->uid && comment_num_replies($comment->cid) == 0) || user_access('administer comments');
Dries's avatar
 
Dries committed
412 413
  }
}
414

Dries's avatar
 
Dries committed
415
function comment_node_url() {
Dries's avatar
Dries committed
416
  return arg(0) .'/'. arg(1);
Dries's avatar
 
Dries committed
417
}
Dries's avatar
 
Dries committed
418

Dries's avatar
 
Dries committed
419 420 421
function comment_edit($cid) {
  global $user;

422
  $comment = db_fetch_object(db_query('SELECT c.*, u.uid, u.name AS registered_name, u.data FROM {comments} c INNER JOIN {users} u ON c.uid = u.uid WHERE c.cid = %d', $cid));
Dries's avatar
 
Dries committed
423
  $comment = drupal_unpack($comment);
424
  $comment->name = $comment->uid ? $comment->registered_name : $comment->name;
425
  if (comment_access('edit', $comment)) {
426
    return comment_form(object2array($comment));
427 428 429
  }
  else {
    drupal_access_denied();
Dries's avatar
 
Dries committed
430 431 432
  }
}

Dries's avatar
Dries committed
433
function comment_reply($nid, $pid = NULL) {
434
  // set the breadcrumb trail
435
  $node = node_load($nid);
436
  menu_set_location(array(array('path' => "node/$nid", 'title' => $node->title), array('path' => "comment/reply/$nid")));
Dries's avatar
 
Dries committed
437

438
  $op = isset($_POST['op']) ? $_POST['op'] : '';
Dries's avatar
 
Dries committed
439

440
  $output = '';
Dries's avatar
 
Dries committed
441

Dries's avatar
Dries committed
442 443 444
  // or are we merely showing the form?
  if (user_access('access comments')) {

445 446 447 448 449 450 451
    if ($op == t('Preview comment')) {
      if (user_access('post comments')) {
        $output .= comment_form(array('pid' => $pid, 'nid' => $nid), NULL);
      }
      else {
        drupal_set_message(t('You are not authorized to post comments.'), 'error');
      }
Dries's avatar
 
Dries committed
452 453
    }
    else {
454 455 456 457 458 459 460 461 462 463 464 465 466 467 468 469 470 471 472 473 474 475 476
      // if this is a reply to another comment, show that comment first
      // else, we'll just show the user the node they're commenting on.
      if ($pid) {
        $comment = db_fetch_object(db_query('SELECT c.*, u.uid, u.name AS registered_name, u.picture, u.data FROM {comments} c INNER JOIN {users} u ON c.uid = u.uid WHERE c.cid = %d AND c.status = %d', $pid, COMMENT_PUBLISHED));
        $comment = drupal_unpack($comment);
        $comment->name = $comment->uid ? $comment->registered_name : $comment->name;
        $output .= theme('comment_view', $comment);
      }
      else if (user_access('access content')) {
        $output .= node_view($node);
        $pid = 0;
      }

      // should we show the reply box?
      if (node_comment_mode($nid) != COMMENT_NODE_READ_WRITE) {
        drupal_set_message(t("This discussion is closed: you can't post new comments."), 'error');
      }
      else if (user_access('post comments')) {
        $output .= comment_form(array('pid' => $pid, 'nid' => $nid), t('Reply'));
      }
      else {
        drupal_set_message(t('You are not authorized to post comments.'), 'error');
      }
Dries's avatar
 
Dries committed
477
    }
Kjartan's avatar
Kjartan committed
478 479
  }
  else {
480
    drupal_set_message(t('You are not authorized to view comments.'), 'error');
Dries's avatar
 
Dries committed
481
  }
Dries's avatar
 
Dries committed
482

Dries's avatar
 
Dries committed
483
  return $output;
Dries's avatar
 
Dries committed
484 485
}

486
function comment_validate(&$edit) {
Dries's avatar
 
Dries committed
487
  global $user;
Dries's avatar
 
Dries committed
488

489 490 491
  // Invoke other validation handlers
  comment_invoke_comment($edit, 'validate');

492 493 494 495 496 497 498
  // only admins can change these fields
  if (!user_access('administer comments')) {
    $edit['uid'] = $user->uid;
    $edit['timestamp'] = time();
    $edit['status'] = user_access('post comments without approval') ? 0 : 1;
  }
  else {
499 500 501
    $date = isset($edit['date']) ? $edit['date'] : 'now';
    if (strtotime($date) != -1) {
      $edit['timestamp'] = strtotime($date);
502 503 504 505 506 507 508 509 510 511 512 513 514 515 516 517 518 519 520 521 522
    }
    else {
      form_set_error('date', t('You have to specify a valid date.'));
    }

    if ($edit['uid']) {
      // if a registered user posted the comment, we assume you only want to transfer authorship
      // to another registered user. Name changes are freely allowed on anon comments.
      if ($account = user_load(array('name' => $edit['author']))) {
        $edit['uid'] = $account->uid;
      }
      else {
        form_set_error('author', t('You have to specify a valid author.'));
      }
    }
    else {
      $edit['uid'] = 0;
      $edit['name'] = $edit['author'];
    }
  }

523 524
  // Validate the comment's subject.  If not specified, extract
  // one from the comment's body.
525 526 527 528 529
  if (trim($edit['subject']) == '') {
    // The body may be in any format, so we:
    // 1) Filter it into HTML
    // 2) Strip out all HTML tags
    // 3) Convert entities back to plain-text.
530 531
  // Note: format is checked by check_markup().
    $edit['subject'] = truncate_utf8(decode_entities(strip_tags(check_markup($edit['comment'], $edit['format']))), 29, TRUE);
532
  }
Dries's avatar
 
Dries committed
533

534
  // Validate the comment's body.
Dries's avatar
 
Dries committed
535 536 537 538
  if ($edit['comment'] == '') {
    form_set_error('comment', t('The body of your comment is empty.'));
  }

539
  // Validate filter format
540
  if (array_key_exists('format', $edit) && !filter_access($edit['format'])) {
541 542 543
    form_set_error('format', t('The supplied input format is invalid.'));
  }

544
  // Check validity of name, mail and homepage (if given)
Dries's avatar
 
Dries committed
545
  if (!$user->uid) {
Dries's avatar
Dries committed
546
    if (variable_get('comment_anonymous', COMMENT_ANONYMOUS_MAYNOT_CONTACT) > COMMENT_ANONYMOUS_MAYNOT_CONTACT) {
Dries's avatar
 
Dries committed
547
      if ($edit['name']) {
548
        $taken = db_result(db_query("SELECT COUNT(uid) FROM {users} WHERE LOWER(name) = '%s'", $edit['name']), 0);
Dries's avatar
 
Dries committed
549 550 551 552 553 554

        if ($taken != 0) {
          form_set_error('name', t('The name you used belongs to a registered user.'));
        }

      }
Dries's avatar
Dries committed
555
      else if (variable_get('comment_anonymous', COMMENT_ANONYMOUS_MAYNOT_CONTACT) == COMMENT_ANONYMOUS_MUST_CONTACT) {
Dries's avatar
 
Dries committed
556 557 558 559 560
        form_set_error('name', t('You have to leave your name.'));
      }

      if ($edit['mail']) {
        if (!valid_email_address($edit['mail'])) {
561
          form_set_error('mail', t('The e-mail address you specified is not valid.'));
Dries's avatar
 
Dries committed
562 563
        }
      }
Dries's avatar
Dries committed
564
      else if (variable_get('comment_anonymous', COMMENT_ANONYMOUS_MAYNOT_CONTACT) == COMMENT_ANONYMOUS_MUST_CONTACT) {
Dries's avatar
 
Dries committed
565 566 567 568 569 570 571 572 573 574
        form_set_error('mail', t('You have to leave an e-mail address.'));
      }

      if ($edit['homepage']) {
        if (!valid_url($edit['homepage'], TRUE)) {
          form_set_error('homepage', t('The URL of your homepage is not valid.  Remember that it must be fully qualified, i.e. of the form <code>http://example.com/directory</code>.'));
        }
      }
    }
  }
575

576
  return $edit;
Dries's avatar
 
Dries committed
577 578
}

579 580 581 582 583 584 585 586 587 588 589
/**
 * Accepts a submission of new or changed comment content.
 *
 * @param $edit
 *   A comment array.
 *
 * @return
 *   If the comment is successfully saved the comment ID is returned.  If the comment
 *   is not saved, FALSE is returned.
 */
function comment_save($edit) {
Dries's avatar
 
Dries committed
590
  global $user;
591
  if (user_access('post comments') && (user_access('administer coments') || node_comment_mode($edit['nid']) == COMMENT_NODE_READ_WRITE)) {
Dries's avatar
 
Dries committed
592
    if (!form_get_errors()) {
593 594
      // Check for duplicate comments.  Note that we have to use the
      // validated/filtered data to perform such check.
595
      $duplicate = db_result(db_query("SELECT COUNT(cid) FROM {comments} WHERE pid = %d AND nid = %d AND subject = '%s' AND comment = '%s'", $edit['pid'], $edit['nid'], $edit['subject'], $edit['comment']), 0);
Dries's avatar
 
Dries committed
596
      if ($duplicate != 0) {
597
        watchdog('content', t('Comment: duplicate %subject.', array('%subject' => theme('placeholder', $edit['subject']))), WATCHDOG_WARNING);
Dries's avatar
 
Dries committed
598
      }
Dries's avatar
 
Dries committed
599

600
      if ($edit['cid']) {
601
        // Update the comment in the database.
602
        db_query("UPDATE {comments} SET status = '%s', timestamp = %d, subject = '%s', comment = '%s', format = '%s', uid = %d, name = '%s' WHERE cid = %d", $edit['status'], $edit['timestamp'], $edit['subject'], $edit['comment'], $edit['format'], $edit['uid'], $edit['name'], $edit['cid']);
Dries's avatar
 
Dries committed
603

Dries's avatar
 
Dries committed
604 605
        _comment_update_node_statistics($edit['nid']);

606
        // Allow modules to respond to the updating of a comment.
607 608
        comment_invoke_comment($edit, 'update');

Dries's avatar
 
Dries committed
609

Dries's avatar
Dries committed
610
        // Add an entry to the watchdog log.
611
        watchdog('content', t('Comment: updated %subject.', array('%subject' => theme('placeholder', $edit['subject']))), WATCHDOG_NOTICE, l(t('view'), 'node/'. $edit['nid'], NULL, NULL, 'comment-'. $edit['cid']));
Dries's avatar
 
Dries committed
612 613
      }
      else {
614
        // Add the comment to database.
615
        $status = user_access('post comments without approval') ? COMMENT_PUBLISHED : COMMENT_NOT_PUBLISHED;
616
        $roles = variable_get('comment_roles', array());
Dries's avatar
 
Dries committed
617 618 619 620 621 622
        $score = 0;

        foreach (array_intersect(array_keys($roles), array_keys($user->roles)) as $rid) {
          $score = max($roles[$rid], $score);
        }

Dries's avatar
 
Dries committed
623 624
        $users = serialize(array(0 => $score));

625 626
        // Here we are building the thread field.  See the comment
        // in comment_render().
627
        if ($edit['pid'] == 0) {
628 629
          // This is a comment with no parent comment (depth 0): we start
          // by retrieving the maximum thread level.
630
          $max = db_result(db_query('SELECT MAX(thread) FROM {comments} WHERE nid = %d', $edit['nid']));
Dries's avatar
 
Dries committed
631

632 633
          // Strip the "/" from the end of the thread.
          $max = rtrim($max, '/');
Dries's avatar
 
Dries committed
634

635 636 637 638 639
          // Next, we increase this value by one.  Note that we can't
          // use 1, 2, 3, ... 9, 10, 11 because we order by string and
          // 10 would be right after 1.  We use 1, 2, 3, ..., 9, 91,
          // 92, 93, ... instead.  Ugly but fast.
          $decimals = (string) substr($max, 0, strlen($max) - 1);
Dries's avatar
 
Dries committed
640 641 642 643 644 645 646 647 648
          $units = substr($max, -1, 1);
          if ($units) {
            $units++;
          }
          else {
            $units = 1;
          }

          if ($units == 10) {
649
            $units = '90';
Dries's avatar
 
Dries committed
650 651
          }

652
          // Finally, build the thread field for this new comment.
653
          $thread = $decimals . $units .'/';
Dries's avatar
 
Dries committed
654 655
        }
        else {
656 657
          // This is comment with a parent comment: we increase
          // the part of the thread value at the proper depth.
Dries's avatar
 
Dries committed
658 659

          // Get the parent comment:
660
          $parent = db_fetch_object(db_query('SELECT * FROM {comments} WHERE cid = %d', $edit['pid']));
Dries's avatar
 
Dries committed
661

662
          // Strip the "/" from the end of the parent thread.
663
          $parent->thread = (string) rtrim((string) $parent->thread, '/');
Dries's avatar
 
Dries committed
664

665
          // Get the max value in _this_ thread.
Dries's avatar
 
Dries committed
666
          $max = db_result(db_query("SELECT MAX(thread) FROM {comments} WHERE thread LIKE '%s.%%' AND nid = %d", $parent->thread, $edit['nid']));
Dries's avatar
 
Dries committed
667

668 669
          if ($max == '') {
            // First child of this parent.
670
            $thread = $parent->thread .'.1/';
Dries's avatar
 
Dries committed
671 672
          }
          else {
673 674
            // Strip the "/" at the end of the thread.
            $max = rtrim($max, '/');
Dries's avatar
 
Dries committed
675

676 677 678
            // We need to get the value at the correct depth.
            $parts = explode('.', $max);
            $parent_depth = count(explode('.', $parent->thread));
Dries's avatar
 
Dries committed
679 680
            $last = $parts[$parent_depth];

681 682 683 684
            // Next, we increase this value by one.  Note that we can't
            // use 1, 2, 3, ... 9, 10, 11 because we order by string and
            // 10 would be right after 1.  We use 1, 2, 3, ..., 9, 91,
            // 92, 93, ... instead.  Ugly but fast.
Dries's avatar
 
Dries committed
685 686 687 688
            $decimals = (string)substr($last, 0, strlen($last) - 1);
            $units = substr($last, -1, 1);
            $units++;
            if ($units == 10) {
689
              $units = '90';
Dries's avatar
 
Dries committed
690 691
            }

692
            // Finally, build the thread field for this new comment.
693
            $thread = $parent->thread .'.'. $decimals . $units .'/';
Dries's avatar
 
Dries committed
694 695 696
          }
        }

697
        $edit['cid'] = db_next_id('{comments}_cid');
Dries's avatar
 
Dries committed
698 699 700 701 702 703
        $edit['timestamp'] = time();

        if ($edit['uid'] = $user->uid) {
          $edit['name'] = $user->name;
        }

704
        db_query("INSERT INTO {comments} (cid, nid, pid, uid, subject, comment, format, hostname, timestamp, status, score, users, thread, name, mail, homepage) VALUES (%d, %d, %d, %d, '%s', '%s', %d, '%s', %d, %d, %d, '%s', '%s', '%s', '%s', '%s')", $edit['cid'], $edit['nid'], $edit['pid'], $edit['uid'], $edit['subject'], $edit['comment'], $edit['format'], $_SERVER['REMOTE_ADDR'], $edit['timestamp'], $edit['status'], $score, $users, $thread, $edit['name'], $edit['mail'], $edit['homepage']);
Dries's avatar
 
Dries committed
705 706

        _comment_update_node_statistics($edit['nid']);
Dries's avatar
 
Dries committed
707

708
        // Tell the other modules a new comment has been submitted.
709
        comment_invoke_comment($edit, 'insert');
Dries's avatar
 
Dries committed
710

711
        // Add an entry to the watchdog log.
712
        watchdog('content', t('Comment: added %subject.', array('%subject' => theme('placeholder', $edit['subject']))), WATCHDOG_NOTICE, l(t('view'), 'node/'. $edit['nid'], NULL, NULL, 'comment-'. $edit['cid']));
Dries's avatar
 
Dries committed
713
      }
Dries's avatar
 
Dries committed
714

715
      // Clear the cache so an anonymous user can see his comment being added.
Dries's avatar
 
Dries committed
716
      cache_clear_all();
Dries's avatar
 
Dries committed
717

Dries's avatar
 
Dries committed
718
      // Explain the approval queue if necessary, and then
Dries's avatar
 
Dries committed
719
      // redirect the user to the node he's commenting on.
720
      if ($status == COMMENT_NOT_PUBLISHED) {
Dries's avatar
 
Dries committed
721
        drupal_set_message(t('Your comment has been queued for moderation by site administrators and will be published after approval.'));
Dries's avatar
 
Dries committed
722
      }
723
      return $edit['cid'];
Dries's avatar
 
Dries committed
724 725
    }
    else {
726
      return FALSE;
Dries's avatar
 
Dries committed
727 728
    }
  }
Dries's avatar
 
Dries committed
729
  else {
730
    $txt = t('Comment: unauthorized comment submitted or comment submitted to a closed node %subject.', array('%subject' => theme('placeholder', $edit['subject'])));
731 732 733
    watchdog('content', $txt, WATCHDOG_WARNING);
    drupal_set_message($txt, 'error');
    return FALSE;
Dries's avatar
 
Dries committed
734 735 736 737
  }
}

function comment_links($comment, $return = 1) {
Dries's avatar
 
Dries committed
738
  global $user;
Dries's avatar
 
Dries committed
739

Dries's avatar
 
Dries committed
740
  $links = array();
Dries's avatar
 
Dries committed
741

742
  // If we are viewing just this comment, we link back to the node.
Dries's avatar
 
Dries committed
743
  if ($return) {
744
    $links[] = l(t('parent'), comment_node_url(), NULL, NULL, "comment-$comment->cid");
Dries's avatar
 
Dries committed
745
  }
Dries's avatar
 
Dries committed
746

747
  if (node_comment_mode($comment->nid) == COMMENT_NODE_READ_WRITE) {
748
    if (user_access('administer comments') && user_access('access administration pages')) {
749 750
      $links[] = l(t('delete'), "comment/delete/$comment->cid");
      $links[] = l(t('edit'), "comment/edit/$comment->cid");
Dries's avatar
 
Dries committed
751
      $links[] = l(t('reply'), "comment/reply/$comment->nid/$comment->cid");
752
    }
753 754
    else if (user_access('post comments')) {
      if (comment_access('edit', $comment)) {
Dries's avatar
 
Dries committed
755
        $links[] = l(t('edit'), "comment/edit/$comment->cid");
Dries's avatar
 
Dries committed
756
      }
Dries's avatar
 
Dries committed
757
      $links[] = l(t('reply'), "comment/reply/$comment->nid/$comment->cid");
Dries's avatar
 
Dries committed
758 759
    }
    else {
760
      $links[] = theme('comment_post_forbidden');
Dries's avatar
 
Dries committed
761
    }
Dries's avatar
 
Dries committed
762
  }
Dries's avatar
 
Dries committed
763

Dries's avatar
 
Dries committed
764
  return $links;
Dries's avatar
 
Dries committed
765 766
}

Dries's avatar
 
Dries committed
767
function comment_render($node, $cid = 0) {
Dries's avatar
 
Dries committed
768 769
  global $user;

770 771 772 773
  $mode = $_GET['mode'];
  $order = $_GET['order'];
  $comments_per_page = $_GET['comments_per_page'];
  $comment_page = $_GET['comment_page'];
Dries's avatar
 
Dries committed
774

775
  $output = '';
Dries's avatar
 
Dries committed
776

777 778
  if (user_access('access comments')) {
    // Pre-process variables.
Dries's avatar
 
Dries committed
779
    $nid = $node->nid;
Dries's avatar
 
Dries committed
780 781
    if (empty($nid)) {
      $nid = 0;
Dries's avatar
 
Dries committed
782 783 784
    }

    if (empty($mode)) {
Dries's avatar
Dries committed
785
      $mode = $user->mode ? $user->mode : ($_SESSION['comment_mode'] ? $_SESSION['comment_mode'] : variable_get('comment_default_mode', COMMENT_MODE_THREADED_EXPANDED));
Dries's avatar
 
Dries committed
786 787 788
    }

    if (empty($order)) {
Dries's avatar
Dries committed
789
      $order = $user->sort ? $user->sort : ($_SESSION['comment_sort'] ? $_SESSION['comment_sort'] : variable_get('comment_default_order', COMMENT_ORDER_NEWEST_FIRST));
Dries's avatar
 
Dries committed
790 791
    }

Dries's avatar
 
Dries committed
792
    if (empty($comments_per_page)) {
793
      $comments_per_page = $user->comments_per_page ? $user->comments_per_page : ($_SESSION['comment_comments_per_page'] ? $_SESSION['comment_comments_per_page'] : variable_get('comment_default_per_page', '50'));
Dries's avatar
 
Dries committed
794
    }
Dries's avatar
 
Dries committed
795

Dries's avatar
 
Dries committed
796
    $output .= "<a id=\"comment\"></a>\n";
Dries's avatar
 
Dries committed
797

Kjartan's avatar
Kjartan committed
798
    if ($cid) {
799
      // Single comment view.
800
      $result = db_query('SELECT c.cid, c.pid, c.nid, c.subject, c.comment, c.format, c.timestamp, c.name, c.mail, c.homepage, u.uid, u.name AS registered_name, u.picture, u.data, c.score, c.users FROM {comments} c INNER JOIN {users} u ON c.uid = u.uid WHERE c.cid = %d AND c.status = %d GROUP BY c.cid, c.pid, c.nid, c.subject, c.comment, c.format, c.timestamp, c.name, c.mail, u.picture, c.homepage, u.uid, u.name, u.picture, u.data, c.score, c.users', $cid, COMMENT_PUBLISHED);
Dries's avatar
 
Dries committed
801

Dries's avatar
 
Dries committed
802
      if ($comment = db_fetch_object($result)) {
803
        $comment->name = $comment->uid ? $comment->registered_name : $comment->name;
804
        $output .= theme('comment_view', $comment, module_invoke_all('link', 'comment', $comment, 1));
Dries's avatar
 
Dries committed
805
      }
Dries's avatar
 
Dries committed
806
    }
Dries's avatar
 
Dries committed
807
    else {
808
      // Multiple comment view
809
      $query .= "SELECT c.cid as cid, c.pid, c.nid, c.subject, c.comment, c.format, c.timestamp, c.name, c.mail, c.homepage, u.uid, u.name AS registered_name, u.picture, u.data, c.score, c.users, c.thread FROM {comments} c INNER JOIN {users} u ON c.uid = u.uid WHERE c.nid = %d AND c.status = %d";
Dries's avatar
 
Dries committed
810

811
      $query .= ' GROUP BY c.cid, c.pid, c.nid, c.subject, c.comment, c.format, c.timestamp, c.name, c.mail, u.picture, c.homepage, u.uid, u.name, u.picture, u.data, c.score, c.users, c.thread';
Dries's avatar
 
Dries committed
812

Dries's avatar
 
Dries committed
813 814 815 816 817 818 819 820 821 822 823 824 825 826 827 828 829 830 831 832 833 834 835 836 837 838 839 840 841 842 843 844 845 846 847 848 849 850 851 852 853 854 855 856 857 858 859 860 861 862 863 864 865 866 867 868 869 870 871 872 873 874
      /*
      ** We want to use the standard pager, but threads would need every
      ** comment to build the thread structure, so we need to store some
      ** extra info.
      **
      ** We use a "thread" field to store this extra info. The basic idea
      ** is to store a value and to order by that value. The "thread" field
      ** keeps this data in a way which is easy to update and convenient
      ** to use.
      **
      ** A "thread" value starts at "1". If we add a child (A) to this
      ** comment, we assign it a "thread" = "1.1". A child of (A) will have
      ** "1.1.1". Next brother of (A) will get "1.2". Next brother of the
      ** parent of (A) will get "2" and so on.
      **
      ** First of all note that the thread field stores the depth of the
      ** comment: depth 0 will be "X", depth 1 "X.X", depth 2 "X.X.X", etc.
      **
      ** Now to get the ordering right, consider this example:
      **
      ** 1
      ** 1.1
      ** 1.1.1
      ** 1.2
      ** 2
      **
      ** If we "ORDER BY thread ASC" we get the above result, and this is
      ** the natural order sorted by time.  However, if we "ORDER BY thread
      ** DESC" we get:
      **
      ** 2
      ** 1.2
      ** 1.1.1
      ** 1.1
      ** 1
      **
      ** Clearly, this is not a natural way to see a thread, and users
      ** will get confused. The natural order to show a thread by time
      ** desc would be:
      **
      ** 2
      ** 1
      ** 1.2
      ** 1.1
      ** 1.1.1
      **
      ** which is what we already did before the standard pager patch. To
      ** achieve this we simply add a "/" at the end of each "thread" value.
      ** This way out thread fields will look like depicted below:
      **
      ** 1/
      ** 1.1/
      ** 1.1.1/
      ** 1.2/
      ** 2/
      **
      ** we add "/" since this char is, in ASCII, higher than every number,
      ** so if now we "ORDER BY thread DESC" we get the correct order.  Try
      ** it, it works ;).  However this would spoil the "ORDER BY thread ASC"
      ** Here, we do not need to consider the trailing "/" so we use a
      ** substring only.
      */
Dries's avatar
 
Dries committed
875

Dries's avatar
Dries committed
876 877
      if ($order == COMMENT_ORDER_NEWEST_FIRST) {
        if ($mode == COMMENT_MODE_FLAT_COLLAPSED || $mode == COMMENT_MODE_FLAT_EXPANDED) {
878
          $query .= ' ORDER BY c.timestamp DESC';
Dries's avatar
 
Dries committed
879 880
        }
        else {
881
          $query .= ' ORDER BY c.thread DESC';
Dries's avatar
 
Dries committed
882
        }
Dries's avatar
 
Dries committed
883
      }
Dries's avatar
Dries committed
884 885
      else if ($order == COMMENT_ORDER_OLDEST_FIRST) {
        if ($mode == COMMENT_MODE_FLAT_COLLAPSED || $mode == COMMENT_MODE_FLAT_EXPANDED) {
886
          $query .= ' ORDER BY c.timestamp';
Dries's avatar
 
Dries committed
887 888 889 890 891 892 893 894 895
        }
        else {

          /*
          ** See comment above.  Analysis learns that this doesn't cost
          ** too much.  It scales much much better than having the whole
          ** comment structure.
          */

896
          $query .= ' ORDER BY SUBSTRING(c.thread, 1, (LENGTH(c.thread) - 1))';
Dries's avatar
 
Dries committed
897
        }
Dries's avatar
 
Dries committed
898 899
      }

900 901
      // Start a form, for use with comment control.
      $result = pager_query($query, $comments_per_page, 0, "SELECT COUNT(*) FROM {comments} WHERE nid = %d AND status = %d", $nid, COMMENT_PUBLISHED);
Dries's avatar
Dries committed
902
      if (db_num_rows($result) && (variable_get('comment_controls', COMMENT_CONTROLS_HIDDEN) == COMMENT_CONTROLS_ABOVE || variable_get('comment_controls', COMMENT_CONTROLS_HIDDEN) == COMMENT_CONTROLS_ABOVE_BELOW)) {
903
        $output .= comment_controls($mode, $order, $comments_per_page);
Dries's avatar
 
Dries committed
904
      }
Dries's avatar
 
Dries committed
905

Dries's avatar
 
Dries committed
906
      while ($comment = db_fetch_object($result)) {
Dries's avatar
 
Dries committed
907
        $comment = drupal_unpack($comment);
908
        $comment->name = $comment->uid ? $comment->registered_name : $comment->name;
909
        $comment->depth = count(explode('.', $comment->thread)) - 1;
Dries's avatar
 
Dries committed
910

Dries's avatar
Dries committed
911
        if ($mode == COMMENT_MODE_FLAT_COLLAPSED) {
912
          $output .= theme('comment_flat_collapsed', $comment);
Dries's avatar
 
Dries committed
913
        }
Dries's avatar
Dries committed
914
        else if ($mode == COMMENT_MODE_FLAT_EXPANDED) {
915
          $output .= theme('comment_flat_expanded', $comment);
Dries's avatar
 
Dries committed
916
        }
Dries's avatar
Dries committed
917
        else if ($mode == COMMENT_MODE_THREADED_COLLAPSED) {
918
          $output .= theme('comment_thread_min', $comment);
Dries's avatar
 
Dries committed
919
        }
Dries's avatar
Dries committed
920
        else if ($mode == COMMENT_MODE_THREADED_EXPANDED) {
921
          $output .= theme('comment_thread_max', $comment);
Dries's avatar
 
Dries committed
922
        }
Dries's avatar
 
Dries committed
923
      }
Dries's avatar
 
Dries committed
924

925 926
      // Use the standard pager; $pager_total is the number of returned rows,
      // is global and defined in pager.inc.
927
      $output .= theme('pager', NULL, $comments_per_page, 0, array('comments_per_page' => $comments_per_page));
Dries's avatar
 
Dries committed
928

Dries's avatar
Dries committed
929
      if (db_num_rows($result) && (variable_get('comment_controls', COMMENT_CONTROLS_HIDDEN) == COMMENT_CONTROLS_BELOW || variable_get('comment_controls', COMMENT_CONTROLS_HIDDEN) == COMMENT_CONTROLS_ABOVE_BELOW)) {
930
        $output .= comment_controls($mode, $order, $comments_per_page);
Dries's avatar
 
Dries committed
931 932 933 934
      }
    }

    // If enabled, show new comment form.
Dries's avatar
Dries committed
935
    if (user_access('post comments') && node_comment_mode($nid) == COMMENT_NODE_READ_WRITE && (variable_get('comment_form_location', COMMENT_FORM_SEPARATE_PAGE) == COMMENT_FORM_BELOW)) {
936
      $output .= comment_form(array('nid' => $nid), t('Post new comment'));
Dries's avatar
 
Dries committed
937 938 939
    }
  }
  return $output;
Dries's avatar
 
Dries committed
940 941
}

Dries's avatar
 
Dries committed
942

Dries's avatar
 
Dries committed
943 944 945
/**
 * Menu callback; delete a comment.
 */
Dries's avatar
Dries committed
946
function comment_delete($cid) {
Dries's avatar
 
Dries committed
947
  $comment = db_fetch_object(db_query('SELECT c.*, u.name AS registered_name, u.uid FROM {comments} c INNER JOIN {users} u ON u.uid = c.uid WHERE c.cid = %d', $cid));
948
  $comment->name = $comment->uid ? $comment->registered_name : $comment->name;
949

Dries's avatar
Dries committed
950
  $output = '';