forum.module 41.4 KB
Newer Older
Dries Buytaert's avatar
   
Dries Buytaert committed
1
2
3
<?php
// $Id$

Dries Buytaert's avatar
   
Dries Buytaert committed
4
5
6
7
8
/**
 * @file
 * Enable threaded discussions about general topics.
 */

9
10
11
12
/**
 * Implementation of hook_help().
 */
function forum_help($section) {
Dries Buytaert's avatar
   
Dries Buytaert committed
13
  switch ($section) {
14
15
    case 'admin/help#forum':
      $output = '<p>'. t('The forum module lets you create threaded discussion forums for a particular topic on your site. This is similar to a message board system such as phpBB. Forums are very useful because they allow community members to discuss topics with one another, and they are archived for future reference.') .'</p>';
16
      $output .= '<p>'. t('Forums can be organized under what are called <em>containers</em>. Containers hold forums and, in turn, forums hold threaded discussions. Both containers and forums can be placed inside other containers and forums. By planning the structure of your containers and forums well, you make it easier for users to find a topic area of interest to them. Forum topics can be moved by selecting a different forum and can be left in the existing forum by selecting <em>leave a shadow copy</em>. Forum topics can also have their own URL.') .'</p>';
17
18
19
      $output .= '<p>'. t('Forums module <strong>requires Taxonomy and Comments module</strong> be enabled.') .'</p>';
      $output .= t('<p>You can</p>
<ul>
20
21
22
23
<li>administer forums at <a href="@admin-forum">administer &gt;&gt; content management &gt;&gt; forums</a>.</li>
<li>enable the required comment and taxonomy modules at <a href="@admin-modules">administer &gt;&gt; site configuration &gt;&gt; modules</a>.</li>
<li>read about the comment module at <a href="@admin-help-comment">administer &gt;&gt; help &gt;&gt; comment</a>.</li>
<li>read about the taxonomy module at <a href="@admin-help-taxonomy">administer &gt;&gt; help &gt;&gt; taxonomy</a>.</li>
24
</ul>
25
26
', array('@admin-forum' => url('admin/content/forum'), '@admin-modules' => url('admin/settings/modules'), '@admin-help-comment' => url('admin/help/comment'), '@admin-help-taxonomy' => url('admin/help/taxonomy')));
      $output .= '<p>'. t('For more information please read the configuration and customization handbook <a href="@forum">Forum page</a>.', array('@forum' => 'http://drupal.org/handbook/modules/forum/')) .'</p>';
27
      return $output;
28
    case 'admin/settings/modules#description':
29
      return t('Enables threaded discussions about general topics.');
30
    case 'admin/content/forum':
31
      return t('<p>This is a list of existing containers and forums that you can edit. Containers hold forums and, in turn, forums hold threaded discussions. Both containers and forums can be placed inside other containers and forums. By planning the structure of your containers and forums well, you make it easier for users to find a topic area of interest to them.</p>');
32
    case 'admin/content/forum/add/container':
33
      return t('<p>Containers help you organize your forums. The job of a container is to hold, or contain, other forums that are related. For example, a container named "Food" might hold two forums named "Fruit" and "Vegetables".</p>');
34
    case 'admin/content/forum/add/forum':
35
      return t('<p>A forum holds discussion topics that are related. For example, a forum named "Fruit" might contain topics titled "Apples" and "Bananas".</p>');
Dries Buytaert's avatar
   
Dries Buytaert committed
36
37
38
  }
}

39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
/**
 * Implementation of hook_menu().
 */
function forum_menu($may_cache) {
  $items = array();

  if ($may_cache) {
    $items[] = array('path' => 'node/add/forum',
      'title' => t('forum topic'),
      'access' => user_access('create forum topics'));
    $items[] = array('path' => 'forum',
      'title' => t('forums'),
      'callback' => 'forum_page',
      'access' => user_access('access content'),
      'type' => MENU_SUGGESTED_ITEM);
54
    $items[] = array('path' => 'admin/content/forum',
55
      'title' => t('forums'),
56
      'description' => t('Control forums and their hierarchy and change forum settings.'),
57
58
59
      'callback' => 'forum_overview',
      'access' => user_access('administer forums'),
      'type' => MENU_NORMAL_ITEM);
60
    $items[] = array('path' => 'admin/content/forum/list',
61
62
63
64
      'title' => t('list'),
      'access' => user_access('administer forums'),
      'type' => MENU_DEFAULT_LOCAL_TASK,
      'weight' => -10);
65
    $items[] = array('path' => 'admin/content/forum/add/container',
66
67
68
69
      'title' => t('add container'),
      'callback' => 'forum_form_container',
      'access' => user_access('administer forums'),
      'type' => MENU_LOCAL_TASK);
70
    $items[] = array('path' => 'admin/content/forum/add/forum',
71
72
73
74
      'title' => t('add forum'),
      'callback' => 'forum_form_forum',
      'access' => user_access('administer forums'),
      'type' => MENU_LOCAL_TASK);
75
76
    $items[] = array('path' => 'admin/content/forum/settings',
      'title' => t('settings'),
Dries Buytaert's avatar
Dries Buytaert committed
77
      'callback' => 'forum_admin_settings',
78
      'weight' => 5,
79
      'access' => user_access('administer forums'),
80
      'type' => MENU_LOCAL_TASK);
81
  }
82
83
  elseif (is_numeric(arg(5))) {
    $term = taxonomy_get_term(arg(5));
84
85
    // Check if this is a valid term.
    if ($term) {
86
      $items[] = array('path' => 'admin/content/forum/edit/container',
87
88
89
90
91
        'title' => t('edit container'),
        'callback' => 'forum_form_container',
        'callback arguments' => array((array)$term),
        'access' => user_access('administer forums'),
        'type' => MENU_CALLBACK);
92
      $items[] = array('path' => 'admin/content/forum/edit/forum',
93
94
95
96
97
98
99
        'title' => t('edit forum'),
        'callback' => 'forum_form_forum',
        'callback arguments' => array((array)$term),
        'access' => user_access('administer forums'),
        'type' => MENU_CALLBACK);
    }
  }
100
101
102
103
104
  else {
    // Add the CSS for this module
    // We put this in !$may_cache so it's only added once per request
    drupal_add_css(drupal_get_path('module', 'forum') .'/forum.css');
  }
105
106
107
108

  return $items;
}

109
/**
110
 * Implementation of hook_node_info().
111
 */
112
function forum_node_info() {
113
114
115
116
117
118
119
120
  return array(
    'forum' => array(
      'name' => t('forum topic'),
      'module' => 'forum',
      'description' => t('Create a new topic for discussion in the forums.'),
      'title_label' => t('Subject'),
    )
  );
Dries Buytaert's avatar
   
Dries Buytaert committed
121
122
}

123
124
125
/**
 * Implementation of hook_access().
 */
Dries Buytaert's avatar
   
Dries Buytaert committed
126
function forum_access($op, $node) {
Dries Buytaert's avatar
   
Dries Buytaert committed
127
128
  global $user;

Dries Buytaert's avatar
   
Dries Buytaert committed
129
130
  if ($op == 'create') {
    return user_access('create forum topics');
Dries Buytaert's avatar
   
Dries Buytaert committed
131
  }
Dries Buytaert's avatar
   
Dries Buytaert committed
132
133
134
135
136
137

  if ($op == 'update' || $op == 'delete') {
    if (user_access('edit own forum topics') && ($user->uid == $node->uid)) {
      return TRUE;
    }
  }
Dries Buytaert's avatar
   
Dries Buytaert committed
138
139
}

140
141
142
/**
 * Implementation of hook_perm().
 */
Dries Buytaert's avatar
   
Dries Buytaert committed
143
function forum_perm() {
144
  return array('create forum topics', 'edit own forum topics', 'administer forums');
Dries Buytaert's avatar
   
Dries Buytaert committed
145
}
Dries Buytaert's avatar
   
Dries Buytaert committed
146

147
148
149
150
151
/**
 * Implementation of hook_nodeapi().
 */
function forum_nodeapi(&$node, $op, $teaser, $page) {
  switch ($op) {
152
    case 'delete revision':
153
154
155
156
157
      db_query('DELETE FROM {forum} WHERE vid = %d', $node->vid);
      break;
  }
}

158
159
160
/**
 * Implementation of hook_taxonomy().
 */
161
function forum_taxonomy($op, $type, $term = NULL) {
162
  if ($op == 'delete' && $term['vid'] == _forum_get_vid()) {
163
164
    switch ($type) {
      case 'term':
165
        $results = db_query('SELECT f.nid FROM {forum} f WHERE f.tid = %d', $term['tid']);
166
167
168
169
170
171
172
        while ($node = db_fetch_object($results)) {
          // node_delete will also remove any association with non-forum vocabularies.
          node_delete($node->nid);
        }

        // For containers, remove the tid from the forum_containers variable.
        $containers = variable_get('forum_containers', array());
173
174
        $key = array_search($term['tid'], $containers);
        if ($key !== FALSE) {
175
176
177
178
179
180
          unset($containers[$key]);
        }
        variable_set('forum_containers', $containers);
        break;
      case 'vocabulary':
        variable_del('forum_nav_vocabulary');
Dries Buytaert's avatar
   
Dries Buytaert committed
181
    }
182
183
  }
}
Dries Buytaert's avatar
   
Dries Buytaert committed
184

Dries Buytaert's avatar
Dries Buytaert committed
185
function forum_admin_settings() {
186

187
  $form = array();
188
  $number = drupal_map_assoc(array(5, 10, 15, 20, 25, 30, 35, 40, 50, 60, 80, 100, 150, 200, 250, 300, 350, 400, 500));
189
190
191
192
193
194
  $form['forum_hot_topic'] = array('#type' => 'select',
    '#title' => t('Hot topic threshold'),
    '#default_value' => variable_get('forum_hot_topic', 15),
    '#options' => $number,
    '#description' => t('The number of posts a topic must have to be considered hot.'),
  );
195
  $number = drupal_map_assoc(array(10, 25, 50, 75, 100));
196
197
198
199
200
201
  $form['forum_per_page'] = array('#type' => 'select',
    '#title' => t('Topics per page'),
    '#default_value' => variable_get('forum_per_page', 25),
    '#options' => $number,
    '#description' => t('The default number of topics displayed per page; links to browse older messages are automatically being displayed.'),
  );
202
  $forder = array(1 => t('Date - newest first'), 2 => t('Date - oldest first'), 3 => t('Posts - most active first'), 4=> t('Posts - least active first'));
203
204
205
206
207
208
  $form['forum_order'] = array('#type' => 'radios',
    '#title' => t('Default order'),
    '#default_value' => variable_get('forum_order', '1'),
    '#options' => $forder,
    '#description' => t('The default display order for topics.'),
  );
209

210
  return system_settings_form('forum_admin_configure', $form);
211
212
}

213
214
215
216
217
218
219
220
221
222
223
224
225
226
227
228
229
230
231
232
233
234
235
236
/**
 * Implementation of hook_form_alter().
 */
function forum_form_alter($form_id, &$form) {
  // hide critical options from forum vocabulary
  if ($form_id == 'taxonomy_form_vocabulary') {
    if ($form['vid']['#value'] == _forum_get_vid()) {
      $form['help_forum_vocab'] = array(
        '#value' => t('This is the designated forum vocabulary. Some of the normal vocabulary options have been removed.'),
        '#weight' => -1,
      );
      $form['nodes']['forum'] = array('#type' => 'checkbox', '#value' => 1, '#title' => t('forum topic'), '#attributes' => array('disabled' => '' ), '#description' => t('forum topic is affixed to the forum vocabulary.'));
      $form['hierarchy'] = array('#type' => 'value', '#value' => 1);
      unset($form['relations']);
      unset($form['tags']);
      unset($form['multiple']);
      $form['required'] = array('#type' => 'value', '#value' => 1);
    }
    else {
      unset($form['nodes']['forum']);
    }
  }
}

237
238
239
/**
 * Implementation of hook_load().
 */
Dries Buytaert's avatar
   
Dries Buytaert committed
240
function forum_load($node) {
241
  $forum = db_fetch_object(db_query('SELECT * FROM {forum} WHERE vid = %d', $node->vid));
Dries Buytaert's avatar
   
Dries Buytaert committed
242
243
244
245

  return $forum;
}

246
247
248
249
250
251
/**
 * Implementation of hook_block().
 *
 * Generates a block containing the currently active forum topics and the
 * most recently added forum topics.
 */
252
253
254
function forum_block($op = 'list', $delta = 0, $edit = array()) {
  switch ($op) {
    case 'list':
Dries Buytaert's avatar
   
Dries Buytaert committed
255
256
      $blocks[0]['info'] = t('Active forum topics');
      $blocks[1]['info'] = t('New forum topics');
257
      return $blocks;
Dries Buytaert's avatar
   
Dries Buytaert committed
258

259
    case 'configure':
260
      $form['forum_block_num_'. $delta] = array('#type' => 'select', '#title' => t('Number of topics'), '#default_value' => variable_get('forum_block_num_'. $delta, '5'), '#options' => drupal_map_assoc(array(2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19, 20)));
261
      return $form;
Dries Buytaert's avatar
   
Dries Buytaert committed
262

263
    case 'save':
264
      variable_set('forum_block_num_'. $delta, $edit['forum_block_num_'. $delta]);
265
      break;
Dries Buytaert's avatar
   
Dries Buytaert committed
266

267
268
    case 'view':
      if (user_access('access content')) {
Dries Buytaert's avatar
   
Dries Buytaert committed
269
270
        switch ($delta) {
          case 0:
271
            $title = t('Active forum topics');
272
            $sql = db_rewrite_sql("SELECT n.nid, n.title, l.comment_count FROM {node} n INNER JOIN {node_comment_statistics} l ON n.nid = l.nid WHERE n.status = 1 AND n.type = 'forum' ORDER BY l.last_comment_timestamp DESC");
273
274
275
276
            $result = db_query_range($sql, 0, variable_get('forum_block_num_0', '5'));
            if (db_num_rows($result)) {
              $content = node_title_list($result);
            }
277
            break;
Dries Buytaert's avatar
   
Dries Buytaert committed
278
279

          case 1:
280
281
            $title = t('New forum topics');
            $sql = db_rewrite_sql("SELECT n.nid, n.title, l.comment_count FROM {node} n INNER JOIN {node_comment_statistics} l ON n.nid = l.nid WHERE n.type = 'forum' AND n.status = 1 ORDER BY n.nid DESC");
282
283
284
285
            $result = db_query_range($sql, 0, variable_get('forum_block_num_1', '5'));
            if (db_num_rows($result)) {
              $content = node_title_list($result);
            }
286
            break;
Dries Buytaert's avatar
   
Dries Buytaert committed
287
        }
Dries Buytaert's avatar
   
Dries Buytaert committed
288

289
        if ($content) {
290
          $content .= '<div class="more-link">'. l(t('more'), 'forum', array('title' => t('Read the latest forum topics.'))) .'</div>';
291
292
        }

Dries Buytaert's avatar
   
Dries Buytaert committed
293
        $block['subject'] = $title;
294
295
296
297
298
        $block['content'] = $content;

        return $block;
      }
  }
Dries Buytaert's avatar
   
Dries Buytaert committed
299
300
}

301
302
303
/**
 * Implementation of hook_view().
 */
Dries Buytaert's avatar
   
Dries Buytaert committed
304
function forum_view(&$node, $teaser = FALSE, $page = FALSE) {
Dries Buytaert's avatar
   
Dries Buytaert committed
305
  if ($page) {
Dries Buytaert's avatar
   
Dries Buytaert committed
306
    $vocabulary = taxonomy_get_vocabulary(variable_get('forum_nav_vocabulary', ''));
Dries Buytaert's avatar
   
Dries Buytaert committed
307
    // Breadcrumb navigation
Dries Buytaert's avatar
   
Dries Buytaert committed
308
309
    $breadcrumb = array();
    $breadcrumb[] = array('path' => 'forum', 'title' => $vocabulary->name);
Dries Buytaert's avatar
   
Dries Buytaert committed
310
    if ($parents = taxonomy_get_parents_all($node->tid)) {
Dries Buytaert's avatar
   
Dries Buytaert committed
311
312
      $parents = array_reverse($parents);
      foreach ($parents as $p) {
Dries Buytaert's avatar
   
Dries Buytaert committed
313
        $breadcrumb[] = array('path' => 'forum/'. $p->tid, 'title' => $p->name);
Dries Buytaert's avatar
   
Dries Buytaert committed
314
315
      }
    }
Dries Buytaert's avatar
   
Dries Buytaert committed
316
317
    $breadcrumb[] = array('path' => 'node/'. $node->nid);
    menu_set_location($breadcrumb);
318
  }
Dries Buytaert's avatar
   
Dries Buytaert committed
319

320
  $node = node_prepare($node, $teaser);
321
322
323
324
325
  $node->content['forum_navigation'] = array(
    '#value' => theme('forum_topic_navigation', $node),
    '#weight' => 100,
  );
  return $node;
Dries Buytaert's avatar
   
Dries Buytaert committed
326
327
}

328
/**
329
 * Implementation of hook_submit().
330
331
332
333
 *
 * Check in particular that only a "leaf" term in the associated taxonomy
 * vocabulary is selected, not a "container" term.
 */
334
function forum_submit(&$node) {
335
  // Make sure all fields are set properly:
Dries Buytaert's avatar
   
Dries Buytaert committed
336
  $node->icon = $node->icon ? $node->icon : '';
Dries Buytaert's avatar
   
Dries Buytaert committed
337
338

  if ($node->taxonomy) {
339
340
341
342
343
344
345
    // Get the forum terms from the (cached) tree
    $tree = taxonomy_get_tree(_forum_get_vid());
    if ($tree) {
      foreach ($tree as $term) {
        $forum_terms[] = $term->tid;
      }
    }
Dries Buytaert's avatar
   
Dries Buytaert committed
346
    foreach ($node->taxonomy as $term) {
347
      if (in_array($term, $forum_terms)) {
348
        $node->tid = $term;
Dries Buytaert's avatar
   
Dries Buytaert committed
349
      }
350
    }
351
    $old_tid = db_result(db_query_range("SELECT tid FROM {forum} WHERE nid = %d ORDER BY vid DESC", $node->nid, 0,1));
352
    if ($old_tid) {
353
354
355
      if (($node->tid != $old_tid) && $node->shadow) {
        // A shadow copy needs to be created. Retain new term and add old term.
        $node->taxonomy[] = $old_tid;
Dries Buytaert's avatar
   
Dries Buytaert committed
356
357
      }
    }
Dries Buytaert's avatar
Dries Buytaert committed
358
359
360
  }
}

361
362
363
364
365
366
367
368
369
370
371
372
373
374
375
/**
 * Implementation of hook_validate().
 *
 * Check in particular that only a "leaf" term in the associated taxonomy
 * vocabulary is selected, not a "container" term.
 */
function forum_validate($node) {
  if ($node->taxonomy) {
    // Extract the node's proper topic ID.
    $vocabulary = variable_get('forum_nav_vocabulary', '');
    $containers = variable_get('forum_containers', array());
    foreach ($node->taxonomy as $term) {
      if (db_result(db_query('SELECT COUNT(*) FROM {term_data} WHERE tid = %d AND vid = %d', $term, $vocabulary))) {
        if (in_array($term, $containers)) {
          $term = taxonomy_get_term($term);
376
          form_set_error('taxonomy', t('The item %forum is only a container for forums. Please select one of the forums below it.', array('%forum' => $term->name)));
377
378
379
380
381
382
        }
      }
    }
  }
}

Dries Buytaert's avatar
   
Dries Buytaert committed
383
384
385
386
/**
 * Implementation of hook_update().
 */
function forum_update($node) {
387
  if ($node->revision) {
388
389
390
391
392
    db_query("INSERT INTO {forum} (nid, vid, tid) VALUES (%d, %d, %d)", $node->nid, $node->vid, $node->tid);
  }
  else {
    db_query('UPDATE {forum} SET tid = %d WHERE vid = %d', $node->tid, $node->vid);
  }
Dries Buytaert's avatar
   
Dries Buytaert committed
393
394
}

395
396
397
/**
 * Implementation of hook_form().
 */
Dries Buytaert's avatar
   
Dries Buytaert committed
398
function forum_form(&$node) {
399
400
  $type = node_get_types('type', $node);
  $form['title'] = array('#type' => 'textfield', '#title' => check_plain($type->title_label), '#default_value' => $node->title, '#required' => TRUE, '#weight' => -5);
401

402
  if ($node->nid) {
403
    $forum_terms = taxonomy_node_get_terms_by_vocabulary(_forum_get_vid(), $node->nid);
Dries Buytaert's avatar
Dries Buytaert committed
404
    // if editing, give option to leave shadows
405
    $shadow = (count($forum_terms) > 1);
406
    $form['shadow'] = array('#type' => 'checkbox', '#title' => t('Leave shadow copy'), '#default_value' => $shadow, '#description' => t('If you move this topic, you can leave a link in the old forum to the new forum.'));
Dries Buytaert's avatar
Dries Buytaert committed
407
  }
Dries Buytaert's avatar
   
Dries Buytaert committed
408

409
  $form['body_filter']['body'] = array('#type' => 'textarea', '#title' => check_plain($type->body_label), '#default_value' => $node->body, '#rows' => 20, '#required' => TRUE);
410
  $form['body_filter']['format'] = filter_form($node->format);
Dries Buytaert's avatar
   
Dries Buytaert committed
411

412
  return $form;
Dries Buytaert's avatar
   
Dries Buytaert committed
413
414
}

415
416
417
418
419
420
/**
 * Implementation of hook_prepare; assign forum taxonomy when adding a topic from within a forum.
 */
function forum_prepare(&$node) {
  if (!$node->nid) {
    // new topic
421
422
    $node->taxonomy[arg(3)]->vid = _forum_get_vid();
    $node->taxonomy[arg(3)]->tid = arg(3);
423
424
425
  }
}

426
427
428
/**
 * Implementation of hook_insert().
 */
Dries Buytaert's avatar
   
Dries Buytaert committed
429
function forum_insert($node) {
430
  db_query('INSERT INTO {forum} (nid, vid, tid) VALUES (%d, %d, %d)', $node->nid, $node->vid, $node->tid);
Dries Buytaert's avatar
   
Dries Buytaert committed
431
432
}

433
434
435
/**
 * Implementation of hook_delete().
 */
Dries Buytaert's avatar
   
Dries Buytaert committed
436
function forum_delete(&$node) {
Dries Buytaert's avatar
   
Dries Buytaert committed
437
  db_query('DELETE FROM {forum} WHERE nid = %d', $node->nid);
Dries Buytaert's avatar
   
Dries Buytaert committed
438
}
Dries Buytaert's avatar
   
Dries Buytaert committed
439

440
441
442
443
444
445
446
447
448
449
450
451
452
453
454
455
456
457
458
459
460
461
462
463
464
465
466
467
468
469
470
471
472
473
474
475
476
477
478
479
480
481
482
483
484
485
486
487
488
489
490
491
492
493
494
495
496
497
498
499
500
501
502
503
504
505
506
507
508
509
510
511
512
513
514
515
516
517
518
519
520
521
522
523
524
525
526
527
528
529
530
531
532
533
534
535
536
537
/**
 * Returns a form for adding a container to the forum vocabulary
 *
 * @param $edit Associative array containing a container term to be added or edited.
 */
function forum_form_container($edit = array()) {
  // Handle a delete operation.
  if ($_POST['op'] == t('Delete') || $_POST['edit']['confirm']) {
    return _forum_confirm_delete($edit['tid']);
  }

  $form['name'] = array(
    '#title' => t('Container name'),
    '#type' => 'textfield',
    '#default_value' => $edit['name'],
    '#maxlength' =>  64,
    '#description' => t('The container name is used to identify related forums.'),
    '#required' => TRUE
  );

  $form['description'] = array(
    '#type' => 'textarea',
    '#title' => t('Description'),
    '#default_value' => $edit['description'],
    '#description' => t('The container description can give users more information about the forums it contains.')
  );
  $form['parent']['#tree'] = TRUE;
  $form['parent'][0] = _forum_parent_select($edit['tid'], t('Parent'), 'container');
  $form['weight'] = array('#type' => 'weight',
    '#title' => t('Weight'),
    '#default_value' => $edit['weight'],
    '#description' => t('When listing containers, those with with light (small) weights get listed before containers with heavier (larger) weights. Containers with equal weights are sorted alphabetically.')
  );

  $form['vid'] = array('#type' => 'hidden',
    '#value' => _forum_get_vid());
  $form['submit'] = array(
    '#type' => 'submit',
    '#value' => t('Submit')
  );
  if ($edit['tid']) {
    $form['delete'] = array('#type' => 'submit', '#value' => t('Delete'));
    $form['tid'] = array('#type' => 'value', '#value' => $edit['tid']);
  }

  return drupal_get_form('forum_form_container', $form, 'forum_form');
}

/**
 * Returns a form for adding a forum to the forum vocabulary
 *
 * @param $edit Associative array containing a forum term to be added or edited.
 */
function forum_form_forum($edit = array()) {
  // Handle a delete operation.
  if ($_POST['op'] == t('Delete') || $_POST['edit']['confirm']) {
    return _forum_confirm_delete($edit['tid']);
  }

  $form['name'] = array('#type' => 'textfield',
    '#title' => t('Forum name'),
    '#default_value' => $edit['name'],
    '#maxlength' =>  64,
    '#description' => t('The forum name is used to identify related discussions.'),
    '#required' => TRUE,
  );
  $form['description'] = array('#type' => 'textarea',
    '#title' => t('Description'),
    '#default_value' => $edit['description'],
    '#description' => t('The forum description can give users more information about the discussion topics it contains.'),
  );
  $form['parent']['#tree'] = TRUE;
  $form['parent'][0] = _forum_parent_select($edit['tid'], t('Parent'), 'forum');
  $form['weight'] = array('#type' => 'weight',
    '#title' => t('Weight'),
    '#default_value' => $edit['weight'],
    '#description' => t('When listing forums, those with lighter (smaller) weights get listed before containers with heavier (larger) weights. Forums with equal weights are sorted alphabetically.'),
  );

  $form['vid'] = array('#type' => 'hidden', '#value' => _forum_get_vid());
  $form['submit' ] = array('#type' => 'submit', '#value' => t('Submit'));
  if ($edit['tid']) {
    $form['delete'] = array('#type' => 'submit', '#value' => t('Delete'));
    $form['tid'] = array('#type' => 'hidden', '#value' => $edit['tid']);
  }

  return drupal_get_form('forum_form_forum', $form, 'forum_form');
}

/**
 * Process forum form and container form submissions.
 */
function forum_form_submit($form_id, $form_values) {
  if ($form_id == 'forum_form_container') {
    $container = TRUE;
    $type = t('forum container');
  }
  else {
538
    $container = FALSE;
539
540
541
542
543
544
545
546
547
548
549
    $type = t('forum');
  }

  $status = taxonomy_save_term($form_values);
  switch ($status) {
    case SAVED_NEW:
      if ($container) {
        $containers = variable_get('forum_containers', array());
        $containers[] = $form_values['tid'];
        variable_set('forum_containers', $containers);
      }
550
      drupal_set_message(t('Created new @type %term.', array('%term' => $form_values['name'], '@type' => $type)));
551
552
      break;
    case SAVED_UPDATED:
553
      drupal_set_message(t('The @type %term has been updated.', array('%term' => $form_values['name'], '@type' => $type)));
554
555
      break;
  }
556
  return 'admin/content/forum';
557
558
559
560
561
562
563
564
565
566
567
568
569
}

/**
 * Returns a confirmation page for deleting a forum taxonomy term.
 *
 * @param $tid ID of the term to be deleted
 */
function _forum_confirm_delete($tid) {
  $term = taxonomy_get_term($tid);

  $form['tid'] = array('#type' => 'value', '#value' => $tid);
  $form['name'] = array('#type' => 'value', '#value' => $term->name);

570
  return confirm_form('forum_confirm_delete', $form, t('Are you sure you want to delete the forum %name?', array('%name' => $term->name)), 'admin/content/forums', t('Deleting a forum or container will delete all sub-forums and associated posts as well. This action cannot be undone.'), t('Delete'), t('Cancel'));
571
572
573
574
575
576
577
}

/**
 * Implementation of forms api _submit call. Deletes a forum after confirmation.
 */
function forum_confirm_delete_submit($form_id, $form_values) {
  taxonomy_del_term($form_values['tid']);
578
579
  drupal_set_message(t('The forum %term and all sub-forums and associated posts have been deleted.', array('%term' => $form_values['name'])));
  watchdog('content', t('forum: deleted %term and all its sub-forums and associated posts.', array('%term' => $form_values['name'])));
580

581
  return 'admin/content/forum';
582
583
584
585
586
587
588
589
590
591
592
593
}

/**
 * Returns an overview list of existing forums and containers
 */
function forum_overview() {
  $header = array(t('Name'), t('Operations'));

  $tree = taxonomy_get_tree(_forum_get_vid());
  if ($tree) {
    foreach ($tree as $term) {
      if (in_array($term->tid, variable_get('forum_containers', array()))) {
594
        $rows[] = array(_taxonomy_depth($term->depth) .' '. check_plain($term->name), l(t('edit container'), "admin/content/forum/edit/container/$term->tid"));
595
596
      }
      else {
597
        $rows[] = array(_taxonomy_depth($term->depth) .' '. check_plain($term->name), l(t('edit forum'), "admin/content/forum/edit/forum/$term->tid"));
598
599
600
601
602
       }

    }
  }
  else {
603
    $rows[] = array(array('data' => '<em>' . t('There are no existing containers or forums. You may add some on the <a href="@container">add container</a> or <a href="@forum">add forum</a> pages.', array('@container' => url('admin/content/forum/add/container'), '@forum' => url('admin/content/forum/add/forum'))) . '</em>', 'colspan' => 2));
604
605
606
607
608
609
610
611
612
613
614
615
616
617
618
619
620
621
622
623
624
625
626
627
628
629
630
631
632
633
634
635
636
637
638
639
640
641
642
643
644
645
646
647
648
649
650
651
652
  }
  return theme('table', $header, $rows);
}

/**
 * Returns a select box for available parent terms
 *
 * @param $tid ID of the term which is being added or edited
 * @param $title Title to display the select box with
 * @param $child_type Whether the child is forum or container
 */
function _forum_parent_select($tid, $title, $child_type) {

  $parents = taxonomy_get_parents($tid);
  if ($parents) {
    $parent = array_shift($parents);
    $parent = $parent->tid;
  }
  else {
    $parent = 0;
  }

  $children = taxonomy_get_tree(_forum_get_vid(), $tid);

  // A term can't be the child of itself, nor of its children.
  foreach ($children as $child) {
    $exclude[] = $child->tid;
  }
  $exclude[] = $tid;

  $tree = taxonomy_get_tree(_forum_get_vid());
  $options[0] = '<'. t('root') .'>';
  if ($tree) {
    foreach ($tree as $term) {
      if (!in_array($term->tid, $exclude)) {
        $options[$term->tid] = _taxonomy_depth($term->depth) . $term->name;
      }
    }
  }
  if ($child_type == 'container') {
    $description = t('Containers are usually placed at the top (root) level of your forum but you can also place a container inside a parent container or forum.');
  }
  else if ($child_type == 'forum') {
    $description = t('You may place your forum inside a parent container or forum, or at the top (root) level of your forum.');
  }

  return array('#type' => 'select', '#title' => $title, '#default_value' => $parent, '#options' => $options, '#description' => $description, '#required' => TRUE);
}

653
function forum_link_alter(&$node, &$links) {
654
  foreach ($links as $module => $link) {
655
    if (strstr($module, 'taxonomy_term')) {
656
657
      // Link back to the forum and not the taxonomy term page. We'll only
      // do this if the taxonomy term in question belongs to forums.
658
      $tid = str_replace('taxonomy/term/', '', $link['href']);
659
660
      $term = taxonomy_get_term($tid);
      if ($term->vid == _forum_get_vid()) {
661
        $links[$module]['href'] = str_replace('taxonomy/term', 'forum', $link['href']);
662
      }
663
664
    }
  }
665
666
667
668
669
670
671
672
673
674
675
}

/**
 * Returns the vocabulary id for forum navigation.
 */
function _forum_get_vid() {
  $vid = variable_get('forum_nav_vocabulary', '');
  if (empty($vid)) {
    // Check to see if a forum vocabulary exists
    $vid = db_result(db_query("SELECT vid FROM {vocabulary} WHERE module = '%s'", 'forum'));
    if (!$vid) {
676
677
678
      // Create the forum vocabulary. Assign the vocabulary a low weight so
      // it will appear first in forum topic create and edit forms.
      $edit = array('name' => 'Forums', 'multiple' => 0, 'required' => 1, 'hierarchy' => 1, 'relations' => 0, 'module' => 'forum', 'weight' => -10, 'nodes' => array('forum' => 1));
679
680
681
682
683
684
685
686
687
      taxonomy_save_vocabulary($edit);
      $vid = $edit['vid'];
    }
    variable_set('forum_nav_vocabulary', $vid);
  }

  return $vid;
}

Dries Buytaert's avatar
   
Dries Buytaert committed
688
689
690
/**
 * Formats a topic for display
 *
691
 * @TODO Give a better description. Not sure where this function is used yet.
Dries Buytaert's avatar
   
Dries Buytaert committed
692
 */
Dries Buytaert's avatar
   
Dries Buytaert committed
693
function _forum_format($topic) {
694
  if ($topic && $topic->timestamp) {
695
    return t('@time ago<br />by !author', array('@time' => format_interval(time() - $topic->timestamp), '!author' => theme('username', $topic)));
Dries Buytaert's avatar
   
Dries Buytaert committed
696
697
  }
  else {
698
    return t('n/a');
Dries Buytaert's avatar
   
Dries Buytaert committed
699
700
701
  }
}

Dries Buytaert's avatar
   
Dries Buytaert committed
702
703
704
/**
 * Returns a list of all forums for a given taxonomy id
 *
705
 * Forum objects contain the following fields
Dries Buytaert's avatar
   
Dries Buytaert committed
706
707
708
709
710
711
712
713
714
 * -num_topics Number of topics in the forum
 * -num_posts Total number of posts in all topics
 * -last_post Most recent post for the forum
 *
 * @param $tid
 *   Taxonomy ID of the vocabulary that holds the forum list.
 * @return
 *   Array of object containing the forum information.
 */
Dries Buytaert's avatar
   
Dries Buytaert committed
715
function forum_get_forums($tid = 0) {
716

Dries Buytaert's avatar
   
Dries Buytaert committed
717
718
  $forums = array();
  $_forums = taxonomy_get_tree(variable_get('forum_nav_vocabulary', ''), $tid);
Dries Buytaert's avatar
   
Dries Buytaert committed
719

Dries Buytaert's avatar
   
Dries Buytaert committed
720
  if (count($_forums)) {
Dries Buytaert's avatar
   
Dries Buytaert committed
721

Dries Buytaert's avatar
   
Dries Buytaert committed
722
723
    $counts = array();

Dries Buytaert's avatar
   
Dries Buytaert committed
724
    $sql = "SELECT r.tid, COUNT(n.nid) AS topic_count, SUM(l.comment_count) AS comment_count FROM {node} n INNER JOIN {node_comment_statistics} l ON n.nid = l.nid INNER JOIN {term_node} r ON n.nid = r.nid WHERE n.status = 1 AND n.type = 'forum' GROUP BY r.tid";
725
    $sql = db_rewrite_sql($sql);
Dries Buytaert's avatar
   
Dries Buytaert committed
726
    $_counts = db_query($sql, $forum->tid);
Dries Buytaert's avatar
   
Dries Buytaert committed
727
728
729
    while ($count = db_fetch_object($_counts)) {
      $counts[$count->tid] = $count;
    }
Dries Buytaert's avatar
   
Dries Buytaert committed
730
  }
Dries Buytaert's avatar
   
Dries Buytaert committed
731

Dries Buytaert's avatar
   
Dries Buytaert committed
732
733
734
735
  foreach ($_forums as $forum) {
    if (in_array($forum->tid, variable_get('forum_containers', array()))) {
      $forum->container = 1;
    }
Dries Buytaert's avatar
   
Dries Buytaert committed
736

Dries Buytaert's avatar
   
Dries Buytaert committed
737
738
739
740
741
742
743
744
745
746
747
    if ($counts[$forum->tid]) {
      $forum->num_topics = $counts[$forum->tid]->topic_count;
      $forum->num_posts = $counts[$forum->tid]->topic_count + $counts[$forum->tid]->comment_count;
    }
    else {
      $forum->num_topics = 0;
      $forum->num_posts = 0;
    }

    // This query does not use full ANSI syntax since MySQL 3.x does not support
    // table1 INNER JOIN table2 INNER JOIN table3 ON table2_criteria ON table3_criteria
Dries Buytaert's avatar
   
Dries Buytaert committed
748
    // used to join node_comment_statistics to users.
749
    $sql = "SELECT ncs.last_comment_timestamp, IF (ncs.last_comment_uid != 0, u2.name, ncs.last_comment_name) AS last_comment_name, ncs.last_comment_uid FROM {node} n INNER JOIN {users} u1 ON n.uid = u1.uid INNER JOIN {term_node} tn ON n.nid = tn.nid INNER JOIN {node_comment_statistics} ncs ON n.nid = ncs.nid INNER JOIN {users} u2 ON ncs.last_comment_uid=u2.uid WHERE n.status = 1 AND tn.tid = %d ORDER BY ncs.last_comment_timestamp DESC";
750
    $sql = db_rewrite_sql($sql);
Dries Buytaert's avatar
   
Dries Buytaert committed
751
    $topic = db_fetch_object(db_query_range($sql, $forum->tid, 0, 1));
752
753

    $last_post = new StdClass();
Dries Buytaert's avatar
   
Dries Buytaert committed
754
755
756
757
    $last_post->timestamp = $topic->last_comment_timestamp;
    $last_post->name = $topic->last_comment_name;
    $last_post->uid = $topic->last_comment_uid;
    $forum->last_post = $last_post;
Dries Buytaert's avatar
   
Dries Buytaert committed
758

Dries Buytaert's avatar
   
Dries Buytaert committed
759
760
761
762
    $forums[$forum->tid] = $forum;
  }

  return $forums;
Dries Buytaert's avatar
   
Dries Buytaert committed
763
764
}

765
766
767
768
769
/**
 * Calculate the number of nodes the user has not yet read and are newer
 * than NODE_NEW_LIMIT.
 */
function _forum_topics_unread($term, $uid) {
770
  $sql = "SELECT COUNT(n.nid) FROM {node} n INNER JOIN {term_node} tn ON n.nid = tn.nid AND tn.tid = %d LEFT JOIN {history} h ON n.nid = h.nid AND h.uid = %d WHERE n.status = 1 AND n.type = 'forum' AND n.created > %d AND h.nid IS NULL";
771
  $sql = db_rewrite_sql($sql);
772
  return db_result(db_query($sql, $term, $uid, NODE_NEW_LIMIT));
Dries Buytaert's avatar
   
Dries Buytaert committed
773
774
}

Dries Buytaert's avatar
Dries Buytaert committed
775
function forum_get_topics($tid, $sortby, $forum_per_page) {
Dries Buytaert's avatar
   
Dries Buytaert committed
776
  global $user, $forum_topic_list_header;
Dries Buytaert's avatar
   
Dries Buytaert committed
777

Dries Buytaert's avatar
   
Dries Buytaert committed
778
  $forum_topic_list_header = array(
Dries Buytaert's avatar
   
Dries Buytaert committed
779
780
    array('data' => '&nbsp;'),
    array('data' => t('Topic'), 'field' => 'n.title'),
Dries Buytaert's avatar
   
Dries Buytaert committed
781
    array('data' => t('Replies'), 'field' => 'l.comment_count'),
Dries Buytaert's avatar
   
Dries Buytaert committed
782
    array('data' => t('Created'), 'field' => 'n.created'),
Dries Buytaert's avatar
   
Dries Buytaert committed
783
    array('data' => t('Last reply'), 'field' => 'l.last_comment_timestamp'),
Dries Buytaert's avatar
   
Dries Buytaert committed
784
  );
Dries Buytaert's avatar
   
Dries Buytaert committed
785

Dries Buytaert's avatar
   
Dries Buytaert committed
786
  $order = _forum_get_topic_order($sortby);
Dries Buytaert's avatar
   
Dries Buytaert committed
787
  for ($i = 0; $i < count($forum_topic_list_header); $i++) {
Dries Buytaert's avatar
   
Dries Buytaert committed
788
789
    if ($forum_topic_list_header[$i]['field'] == $order['field']) {
      $forum_topic_list_header[$i]['sort'] = $order['sort'];
Dries Buytaert's avatar
   
Dries Buytaert committed
790
791
792
793
    }
  }

  $term = taxonomy_get_term($tid);
Dries Buytaert's avatar
   
Dries Buytaert committed
794

795
  $sql = db_rewrite_sql("SELECT n.nid, f.tid, n.title, n.sticky, u.name, u.uid, n.created AS timestamp, n.comment AS comment_mode, l.last_comment_timestamp, IF(l.last_comment_uid != 0, cu.name, l.last_comment_name) AS last_comment_name, l.last_comment_uid, l.comment_count AS num_comments FROM {node_comment_statistics} l, {users} cu, {term_node} r, {users} u, {forum} f, {node} n WHERE n.status = 1 AND l.last_comment_uid = cu.uid AND n.nid = l.nid AND n.nid = r.nid AND r.tid = %d AND n.uid = u.uid AND n.vid = f.vid");
Dries Buytaert's avatar
   
Dries Buytaert committed
796
  $sql .= tablesort_sql($forum_topic_list_header, 'n.sticky DESC,');
797
  $sql .= ', n.created DESC';  // Always add a secondary sort order so that the news forum topics are on top.
Dries Buytaert's avatar
Dries Buytaert committed
798

799
  $sql_count = db_rewrite_sql("SELECT COUNT(n.nid) FROM {node} n INNER JOIN {term_node} r ON n.nid = r.nid AND r.tid = %d WHERE n.status = 1 AND n.type = 'forum'");
Dries Buytaert's avatar
   
Dries Buytaert committed
800

Steven Wittens's avatar
Steven Wittens committed
801
  $result = pager_query($sql, $forum_per_page, 0, $sql_count, $tid);
Dries Buytaert's avatar
   
Dries Buytaert committed
802
803

  while ($topic = db_fetch_object($result)) {
Dries Buytaert's avatar
Dries Buytaert committed
804
805
    if ($user->uid) {
      // folder is new if topic is new or there are new comments since last visit
Dries Buytaert's avatar
   
Dries Buytaert committed
806
      if ($topic->tid != $tid) {
Dries Buytaert's avatar
Dries Buytaert committed
807
        $topic->new = 0;
Dries Buytaert's avatar
   
Dries Buytaert committed
808
809
      }
      else {
Dries Buytaert's avatar
   
Dries Buytaert committed
810
        $history = _forum_user_last_visit($topic->nid);
Dries Buytaert's avatar
   
Dries Buytaert committed
811
        $topic->new_replies = comment_num_new($topic->nid, $history);
812
        $topic->new = $topic->new_replies || ($topic->timestamp > $history);
Dries Buytaert's avatar
   
Dries Buytaert committed
813
      }
814
815
    }
    else {
816
      // Do not track "new replies" status for topics if the user is anonymous.
Dries Buytaert's avatar
Dries Buytaert committed
817
818
      $topic->new_replies = 0;
      $topic->new = 0;
819
    }
Dries Buytaert's avatar
   
Dries Buytaert committed
820

Dries Buytaert's avatar
   
Dries Buytaert committed
821
    if ($topic->num_comments > 0) {
822
      $last_reply = new StdClass();
Dries Buytaert's avatar
   
Dries Buytaert committed
823
824
825
826
827
      $last_reply->timestamp = $topic->last_comment_timestamp;
      $last_reply->name = $topic->last_comment_name;
      $last_reply->uid = $topic->last_comment_uid;
      $topic->last_reply = $last_reply;
    }
Dries Buytaert's avatar
   
Dries Buytaert committed
828
829
830
    $topics[] = $topic;
  }

Dries Buytaert's avatar
Dries Buytaert committed
831
  return $topics;
Dries Buytaert's avatar
   
Dries Buytaert committed
832
833
}

Dries Buytaert's avatar
   
Dries Buytaert committed
834
835
836
/**
 * Finds the first unread node for a given forum.
 */
Dries Buytaert's avatar
Dries Buytaert committed
837
function _forum_new($tid) {
Dries Buytaert's avatar
   
Dries Buytaert committed
838
839
  global $user;

Dries Buytaert's avatar
   
Dries Buytaert committed
840
  $sql = "SELECT n.nid FROM {node} n LEFT JOIN {history} h ON n.nid = h.nid AND h.uid = %d INNER JOIN {term_node} r ON n.nid = r.nid AND r.tid = %d WHERE n.status = 1 AND n.type = 'forum' AND h.nid IS NULL AND n.created > %d ORDER BY created";
841
  $sql = db_rewrite_sql($sql);
Dries Buytaert's avatar
   
Dries Buytaert committed
842
  $nid = db_result(db_query_range($sql, $user->uid, $tid, NODE_NEW_LIMIT, 0, 1));
Dries Buytaert's avatar
   
Dries Buytaert committed
843
844
845
846

  return $nid ? $nid : 0;
}

847
/**
848
 * Menu callback; prints a forum listing.
849
 */
Dries Buytaert's avatar
Dries Buytaert committed
850
function forum_page($tid = 0) {
851
  if (module_exist('taxonomy') && module_exist('comment')) {
Dries Buytaert's avatar
Dries Buytaert committed
852
853
    $forum_per_page = variable_get('forum_per_page', 25);
    $sortby = variable_get('forum_order', 1);
Dries Buytaert's avatar
   
Dries Buytaert committed
854

Dries Buytaert's avatar
Dries Buytaert committed
855
856
857
858
    $forums = forum_get_forums($tid);
    $parents = taxonomy_get_parents_all($tid);
    if ($tid && !in_array($tid, variable_get('forum_containers', array()))) {
      $topics = forum_get_topics($tid, $sortby, $forum_per_page);
Dries Buytaert's avatar
   
Dries Buytaert committed
859
    }
Dries Buytaert's avatar
Dries Buytaert committed
860

Dries Buytaert's avatar
   
Dries Buytaert committed
861
    return theme('forum_display', $forums, $topics, $parents, $tid, $sortby, $forum_per_page);
Dries Buytaert's avatar
   
Dries Buytaert committed
862
863
  }
  else {
864
865
    drupal_set_message(t('The forum module requires both the taxonomy module and the comment module to be enabled and configured.'), 'error');
    return ' ';
Dries Buytaert's avatar
   
Dries Buytaert committed
866
867
868
  }
}

Dries Buytaert's avatar
   
Dries Buytaert committed
869
/**
Dries Buytaert's avatar
   
Dries Buytaert committed
870
871
 * Format the forum body.
 *
Dries Buytaert's avatar
   
Dries Buytaert committed
872
 * @ingroup themeable
Dries Buytaert's avatar
   
Dries Buytaert committed
873
 */
Dries Buytaert's avatar
   
Dries Buytaert committed
874
function theme_forum_display($forums, $topics, $parents, $tid, $sortby, $forum_per_page) {
Dries Buytaert's avatar
   
Dries Buytaert committed
875
  global $user;
Dries Buytaert's avatar
   
Dries Buytaert committed
876
  // forum list, topics list, topic browser and 'add new topic' link
Dries Buytaert's avatar
   
Dries Buytaert committed
877

Dries Buytaert's avatar
   
Dries Buytaert committed
878
  $vocabulary = taxonomy_get_vocabulary(variable_get('forum_nav_vocabulary', ''));
879
  $title = $vocabulary->name;
Dries Buytaert's avatar
   
Dries Buytaert committed
880

Dries Buytaert's avatar
   
Dries Buytaert committed
881
882
  // Breadcrumb navigation:
  $breadcrumb = array();
Dries Buytaert's avatar
   
Dries Buytaert committed
883
  if ($tid) {
Dries Buytaert's avatar
   
Dries Buytaert committed
884
    $breadcrumb[] = array('path' => 'forum', 'title' => $title);
Dries Buytaert's avatar
   
Dries Buytaert committed
885
  }
Dries Buytaert's avatar
   
Dries Buytaert committed
886
887

  if ($parents) {
Dries Buytaert's avatar
   
Dries Buytaert committed
888
889
    $parents = array_reverse($parents);
    foreach ($parents as $p) {
890
891
      if ($p->tid == $tid) {
        $title = $p->name;
Dries Buytaert's avatar
   
Dries Buytaert committed
892
893
      }
      else {
Dries Buytaert's avatar
   
Dries Buytaert committed
894
        $breadcrumb[] = array('path' => 'forum/'. $p->tid, 'title' => $p->name);
Dries Buytaert's avatar
   
Dries Buytaert committed
895
896
897
      }
    }
  }
898
899
900

  drupal_set_title($title);

Dries Buytaert's avatar
   
Dries Buytaert committed
901
902
  $breadcrumb[] = array('path' => $_GET['q']);
  menu_set_location($breadcrumb);
Dries Buytaert's avatar
   
Dries Buytaert committed
903

Dries Buytaert's avatar
   
Dries Buytaert committed
904
  if (count($forums) || count($parents)) {
905
906
    $output  = '<div id="forum">';
    $output .= '<ul>';
Dries Buytaert's avatar
   
Dries Buytaert committed
907
908
909

    if (module_exist('tracker')) {
      if ($user->uid) {
910
        $output .= ' <li>'. l(t('My discussions.'), "tracker/$user->uid") .'</li>';
Dries Buytaert's avatar
   
Dries Buytaert committed
911
912
      }

913
      $output .= ' <li>'. l(t('Active discussions.'), 'tracker') .'</li>';
Dries Buytaert's avatar
   
Dries Buytaert committed
914
915
916
    }

    if (user_access('create forum topics')) {
917
      $output .= '<li>'. l(t('Post new forum topic.'), "node/add/forum/$tid") .'</li>';
Dries Buytaert's avatar
   
Dries Buytaert committed
918
919
    }
    else if ($user->uid) {
920
      $output .= '<li>'. t('You are not allowed to post a new forum topic.') .'</li>';
Dries Buytaert's avatar
   
Dries Buytaert committed
921
922
    }
    else {
923
      $output .= '<li>'. t('<a href="@login">Login</a> to post a new forum topic.', array('@login' => url('user/login'))) .'</li>';
Dries Buytaert's avatar
   
Dries Buytaert committed
924
    }
925
    $output .= '</ul>';
Dries Buytaert's avatar
   
Dries Buytaert committed
926

Dries Buytaert's avatar
   
Dries Buytaert committed
927
    $output .= theme('forum_list', $forums, $parents, $tid);
Dries Buytaert's avatar
   
Dries Buytaert committed
928

Dries Buytaert's avatar
   
Dries Buytaert committed
929
    if ($tid && !in_array($tid, variable_get('forum_containers', array()))) {
930
931
932
933
      drupal_add_link(array('rel' => 'alternate',
                            'type' => 'application/rss+xml',
                            'title' => 'RSS - '. $title,
                            'href' => url('taxonomy/term/'. $tid .'/0/feed')));
Dries Buytaert's avatar
   
Dries Buytaert committed
934

Dries Buytaert's avatar
   
Dries Buytaert committed
935
      $output .= theme('forum_topic_list', $tid, $topics, $sortby, $forum_per_page);
936
      $output .= theme('feed_icon', url("taxonomy/term/$tid/0/feed"));
Dries Buytaert's avatar
   
Dries Buytaert committed
937
    }
938
    $output .= '</div>';
Dries Buytaert's avatar
   
Dries Buytaert committed
939
940
  }
  else {
941
    drupal_set_title(t('No forums defined'));
Dries Buytaert's avatar
   
Dries Buytaert committed
942
    $output = '';
Dries Buytaert's avatar
   
Dries Buytaert committed
943
944
  }

945
  return $output;
Dries Buytaert's avatar
   
Dries Buytaert committed
946
947
}

Dries Buytaert's avatar
   
Dries Buytaert committed
948
/**
Dries Buytaert's avatar
   
Dries Buytaert committed
949
950
 * Format the forum listing.
 *
Dries Buytaert's avatar
   
Dries Buytaert committed
951
 * @ingroup themeable
Dries Buytaert's avatar
   
Dries Buytaert committed
952
 */
Dries Buytaert's avatar
   
Dries Buytaert committed
953
function theme_forum_list($forums, $parents, $tid) {
Dries Buytaert's avatar
   
Dries Buytaert committed
954
955
  global $user;

Dries Buytaert's avatar
   
Dries Buytaert committed
956
957
  if ($forums) {

Dries Buytaert's avatar
   
Dries Buytaert committed
958
    $header = array(t('Forum'), t('Topics'), t('Posts'), t('Last post'));
Dries Buytaert's avatar
   
Dries Buytaert committed
959
960

    foreach ($forums as $forum) {
Dries Buytaert's avatar
   
Dries Buytaert committed
961
      if ($forum->container) {
962
963
        $description  = '<div style="margin-left: '. ($forum->depth * 30) ."px;\">\n";
        $description .= ' <div class="name">'. l($forum->name, "forum/$forum->tid") ."</div>\n";
Dries Buytaert's avatar
   
Dries Buytaert committed
964
965

        if ($forum->description) {
966
          $description .= ' <div class="description">'. filter_xss_admin($forum->description) ."</div>\n";
Dries Buytaert's avatar
   
Dries Buytaert committed
967
968
969
        }
        $description .= "</div>\n";

Dries Buytaert's avatar
   
Dries Buytaert committed
970
        $rows[] = array(array('data' => $description, 'class' => 'container', 'colspan' => '4'));
971
      }
Dries Buytaert's avatar
   
Dries Buytaert committed
972
      else {
973
974
975
        $new_topics = _forum_topics_unread($forum->tid, $user->uid);
        $forum->old_topics = $forum->num_topics - $new_topics;
        if (!$user->uid) {
Dries Buytaert's avatar
   
Dries Buytaert committed
976
977
          $new_topics = 0;
        }
Dries Buytaert's avatar
   
Dries Buytaert committed
978

979
980
        $description  = '<div style="margin-left: '. ($forum->depth * 30) ."px;\">\n";
        $description .= ' <div class="name">'. l($forum->name, "forum/$forum->tid") ."</div>\n";
Dries Buytaert's avatar
   
Dries Buytaert committed
981

Dries Buytaert's avatar
   
Dries Buytaert committed
982
        if ($forum->description) {
983
          $description .= ' <div class="description">'. filter_xss_admin($forum->description) ."</div>\n";
Dries Buytaert's avatar
   
Dries Buytaert committed
984
985
        }
        $description .= "</div>\n";
Dries Buytaert's avatar
   
Dries Buytaert committed
986

Dries Buytaert's avatar
   
Dries Buytaert committed
987
        $rows[] = array(
Dries Buytaert's avatar
   
Dries Buytaert committed
988
          array('data' => $description, 'class' => 'forum'),
989
          array('data' => $forum->num_topics . ($new_topics ? '<br />'. l(format_plural($new_topics, '1 new', '@count new'), "forum/$forum->tid", NULL, NULL, 'new') : ''), 'class' => 'topics'),
Dries Buytaert's avatar
   
Dries Buytaert committed
990
991
          array('data' => $forum->num_posts, 'class' => 'posts'),
          array('data' => _forum_format($forum->last_post), 'class' => 'last-reply'));
Dries Buytaert's avatar
   
Dries Buytaert committed
992
      }
Dries Buytaert's avatar
   
Dries Buytaert committed
993
    }
Dries Buytaert's avatar
   
Dries Buytaert committed
994
995
996

    return theme('table', $header, $rows);

Dries Buytaert's avatar
   
Dries Buytaert committed
997
998
999
1000
  }

}

For faster browsing, not all history is shown. View entire blame