forum.module 40 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
      $output .= '<p>'. t('Forums module <strong>requires Taxonomy and Comments module</strong> be enabled.') .'</p>';
18
      $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>';
19
      return $output;
20
    case 'admin/content/forum':
21
      return '<p>'. t('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>';
22
    case 'admin/content/forum/add/container':
23
      return '<p>'. t('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>';
24
    case 'admin/content/forum/add/forum':
25
      return '<p>'. t('A forum holds discussion topics that are related. For example, a forum named "Fruit" might contain topics titled "Apples" and "Bananas".') .'</p>';
26
27
    case 'admin/content/forum/settings':
      return '<p>'. t('These settings provide the ability to fine tune the display of your forum topics.') .'</p>';
Dries Buytaert's avatar
   
Dries Buytaert committed
28
29
30
  }
}

31
32
33
/**
 * Implementation of hook_menu().
 */
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
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
function forum_menu() {
  $items['node/add/forum'] = array(
    'title' => t('Forum topic'),
    'access arguments' => array('create forum topics'),
  );
  $items['forum'] = array(
    'title' => t('Forums'),
    'page callback' => 'forum_page',
    'access arguments' => array('access content'),
    'type' => MENU_SUGGESTED_ITEM,
  );
  $items['admin/content/forum'] = array(
    'title' => t('Forums'),
    'description' => t('Control forums and their hierarchy and change forum settings.'),
    'page callback' => 'forum_overview',
    'access arguments' => array('administer forums'),
  );
  $items['admin/content/forum/list'] = array(
    'title' => t('List'),
    'type' => MENU_DEFAULT_LOCAL_TASK,
    'weight' => -10,
  );
  $items['admin/content/forum/add/container'] = array(
    'title' => t('Add container'),
    'page callback' => 'forum_form_main',
    'page arguments' => array('container'),
    'type' => MENU_LOCAL_TASK,
  );
  $items['admin/content/forum/add/forum'] = array(
    'title' => t('Add forum'),
    'page callback' => 'forum_form_main',
    'page arguments' => array('forum'),
    'type' => MENU_LOCAL_TASK,
  );
  $items['admin/content/forum/settings'] = array(
    'title' => t('Settings'),
    'page callback' => 'drupal_get_form',
    'page arguments' => array('forum_admin_settings'),
    'weight' => 5,
    'type' => MENU_LOCAL_TASK,
  );
  $items['admin/content/forum/edit'] = array(
    'page callback' => 'forum_form_main',
    'map arguments' => array('_forum_get_term', 5, array()),
    'type' => MENU_CALLBACK,
  );
  $items['admin/content/forum/edit/container/%'] = array(
    'title' => t('Edit container'),
    'page arguments' => array('container', 5),
  );
  $items['admin/content/forum/edit/forum/%'] = array(
    'title' => t('Edit forum'),
    'page callback' => 'forum_form_main',
    'page arguments' => array('forum', 5),
  );
  return $items;
}
91

92
93
94
function forum_init() {
  drupal_add_css(drupal_get_path('module', 'forum') .'/forum.css');
}
95

96
97
function _forum_get_term($tid) {
  return (array)taxonomy_get_term($tid);
98
99
}

100
/**
101
 * Implementation of hook_node_info().
102
 */
103
function forum_node_info() {
104
105
  return array(
    'forum' => array(
106
      'name' => t('Forum topic'),
107
108
109
110
111
      'module' => 'forum',
      'description' => t('Create a new topic for discussion in the forums.'),
      'title_label' => t('Subject'),
    )
  );
Dries Buytaert's avatar
   
Dries Buytaert committed
112
113
}

114
115
116
/**
 * Implementation of hook_access().
 */
Dries Buytaert's avatar
   
Dries Buytaert committed
117
function forum_access($op, $node) {
Dries Buytaert's avatar
   
Dries Buytaert committed
118
119
  global $user;

Dries Buytaert's avatar
   
Dries Buytaert committed
120
121
  if ($op == 'create') {
    return user_access('create forum topics');
Dries Buytaert's avatar
   
Dries Buytaert committed
122
  }
Dries Buytaert's avatar
   
Dries Buytaert committed
123
124
125
126
127
128

  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
129
130
}

131
132
133
/**
 * Implementation of hook_perm().
 */
Dries Buytaert's avatar
   
Dries Buytaert committed
134
function forum_perm() {
135
  return array('create forum topics', 'edit own forum topics', 'administer forums');
Dries Buytaert's avatar
   
Dries Buytaert committed
136
}
Dries Buytaert's avatar
   
Dries Buytaert committed
137

138
139
140
141
142
/**
 * Implementation of hook_nodeapi().
 */
function forum_nodeapi(&$node, $op, $teaser, $page) {
  switch ($op) {
143
    case 'delete revision':
144
145
146
147
148
      db_query('DELETE FROM {forum} WHERE vid = %d', $node->vid);
      break;
  }
}

149
150
151
/**
 * Implementation of hook_taxonomy().
 */
152
function forum_taxonomy($op, $type, $term = NULL) {
153
  if ($op == 'delete' && $term['vid'] == _forum_get_vid()) {
154
155
    switch ($type) {
      case 'term':
156
        $results = db_query('SELECT f.nid FROM {forum} f WHERE f.tid = %d', $term['tid']);
157
158
159
160
161
162
163
        while ($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());
164
165
        $key = array_search($term['tid'], $containers);
        if ($key !== FALSE) {
166
167
168
169
170
171
          unset($containers[$key]);
        }
        variable_set('forum_containers', $containers);
        break;
      case 'vocabulary':
        variable_del('forum_nav_vocabulary');
Dries Buytaert's avatar
   
Dries Buytaert committed
172
    }
173
174
  }
}
Dries Buytaert's avatar
   
Dries Buytaert committed
175

Dries Buytaert's avatar
Dries Buytaert committed
176
function forum_admin_settings() {
177
  $form = array();
178
  $number = drupal_map_assoc(array(5, 10, 15, 20, 25, 30, 35, 40, 50, 60, 80, 100, 150, 200, 250, 300, 350, 400, 500));
179
180
181
182
183
184
  $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.'),
  );
185
  $number = drupal_map_assoc(array(10, 25, 50, 75, 100));
186
187
188
189
190
191
  $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.'),
  );
192
  $forder = array(1 => t('Date - newest first'), 2 => t('Date - oldest first'), 3 => t('Posts - most active first'), 4=> t('Posts - least active first'));
193
194
195
196
197
198
  $form['forum_order'] = array('#type' => 'radios',
    '#title' => t('Default order'),
    '#default_value' => variable_get('forum_order', '1'),
    '#options' => $forder,
    '#description' => t('The default display order for topics.'),
  );
199
  return system_settings_form($form);
200
201
}

202
203
204
205
206
207
208
209
210
211
212
213
214
215
216
217
218
219
220
221
222
223
224
225
/**
 * 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']);
    }
  }
}

226
227
228
/**
 * Implementation of hook_load().
 */
Dries Buytaert's avatar
   
Dries Buytaert committed
229
function forum_load($node) {
230
  $forum = db_fetch_object(db_query('SELECT * FROM {forum} WHERE vid = %d', $node->vid));
Dries Buytaert's avatar
   
Dries Buytaert committed
231
232
233
234

  return $forum;
}

235
236
237
238
239
240
/**
 * Implementation of hook_block().
 *
 * Generates a block containing the currently active forum topics and the
 * most recently added forum topics.
 */
241
242
243
function forum_block($op = 'list', $delta = 0, $edit = array()) {
  switch ($op) {
    case 'list':
Dries Buytaert's avatar
   
Dries Buytaert committed
244
245
      $blocks[0]['info'] = t('Active forum topics');
      $blocks[1]['info'] = t('New forum topics');
246
      return $blocks;
Dries Buytaert's avatar
   
Dries Buytaert committed
247

248
    case 'configure':
249
      $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)));
250
      return $form;
Dries Buytaert's avatar
   
Dries Buytaert committed
251

252
    case 'save':
253
      variable_set('forum_block_num_'. $delta, $edit['forum_block_num_'. $delta]);
254
      break;
Dries Buytaert's avatar
   
Dries Buytaert committed
255

256
257
    case 'view':
      if (user_access('access content')) {
Dries Buytaert's avatar
   
Dries Buytaert committed
258
259
        switch ($delta) {
          case 0:
260
            $title = t('Active forum topics');
261
            $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");
262
263
264
265
            $result = db_query_range($sql, 0, variable_get('forum_block_num_0', '5'));
            if (db_num_rows($result)) {
              $content = node_title_list($result);
            }
266
            break;
Dries Buytaert's avatar
   
Dries Buytaert committed
267
268

          case 1:
269
270
            $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");
271
272
273
274
            $result = db_query_range($sql, 0, variable_get('forum_block_num_1', '5'));
            if (db_num_rows($result)) {
              $content = node_title_list($result);
            }
275
            break;
Dries Buytaert's avatar
   
Dries Buytaert committed
276
        }
Dries Buytaert's avatar
   
Dries Buytaert committed
277

278
        if ($content) {
279
          $content .= '<div class="more-link">'. l(t('more'), 'forum', array('title' => t('Read the latest forum topics.'))) .'</div>';
280
281
        }

Dries Buytaert's avatar
   
Dries Buytaert committed
282
        $block['subject'] = $title;
283
284
285
286
287
        $block['content'] = $content;

        return $block;
      }
  }
Dries Buytaert's avatar
   
Dries Buytaert committed
288
289
}

290
291
292
/**
 * Implementation of hook_view().
 */
Dries Buytaert's avatar
   
Dries Buytaert committed
293
function forum_view(&$node, $teaser = FALSE, $page = FALSE) {
Dries Buytaert's avatar
   
Dries Buytaert committed
294
  if ($page) {
Dries Buytaert's avatar
   
Dries Buytaert committed
295
    $vocabulary = taxonomy_get_vocabulary(variable_get('forum_nav_vocabulary', ''));
Dries Buytaert's avatar
   
Dries Buytaert committed
296
    // Breadcrumb navigation
Dries Buytaert's avatar
   
Dries Buytaert committed
297
298
    $breadcrumb = array();
    $breadcrumb[] = array('path' => 'forum', 'title' => $vocabulary->name);
Dries Buytaert's avatar
   
Dries Buytaert committed
299
    if ($parents = taxonomy_get_parents_all($node->tid)) {
Dries Buytaert's avatar
   
Dries Buytaert committed
300
301
      $parents = array_reverse($parents);
      foreach ($parents as $p) {
Dries Buytaert's avatar
   
Dries Buytaert committed
302
        $breadcrumb[] = array('path' => 'forum/'. $p->tid, 'title' => $p->name);
Dries Buytaert's avatar
   
Dries Buytaert committed
303
304
      }
    }
Dries Buytaert's avatar
   
Dries Buytaert committed
305
306
    $breadcrumb[] = array('path' => 'node/'. $node->nid);
    menu_set_location($breadcrumb);
307
  }
Dries Buytaert's avatar
   
Dries Buytaert committed
308

309
  $node = node_prepare($node, $teaser);
310
311
312
313
314
315
  if (!$teaser) {
    $node->content['forum_navigation'] = array(
      '#value' => theme('forum_topic_navigation', $node),
      '#weight' => 100,
    );
  }
316
  return $node;
Dries Buytaert's avatar
   
Dries Buytaert committed
317
318
}

319
/**
320
321
322
323
 * Implementation of hook_submit().
 *
 * Check in particular that only a "leaf" term in the associated taxonomy
 * vocabulary is selected, not a "container" term.
324
 */
325
function forum_submit(&$node) {
326
  // Make sure all fields are set properly:
Dries Buytaert's avatar
   
Dries Buytaert committed
327
  $node->icon = $node->icon ? $node->icon : '';
Dries Buytaert's avatar
   
Dries Buytaert committed
328

329
  if ($node->taxonomy) {
330
331
332
333
334
335
336
    // 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
337
    foreach ($node->taxonomy as $term) {
338
      if (in_array($term, $forum_terms)) {
339
        $node->tid = $term;
Dries Buytaert's avatar
   
Dries Buytaert committed
340
      }
341
    }
342
    $old_tid = db_result(db_query_range("SELECT tid FROM {forum} WHERE nid = %d ORDER BY vid DESC", $node->nid, 0,1));
343
    if ($old_tid) {
344
345
346
      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
347
348
      }
    }
Dries Buytaert's avatar
Dries Buytaert committed
349
  }
350
}
Dries Buytaert's avatar
Dries Buytaert committed
351

352
353
354
355
356
357
358
359
360
361
362
363
364
365
366
367
368
369
370
371
/**
 * 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);
          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)));
        }
      }
    }
  }
372
373
}

374
375
376
377
378
/**
 * Implementation of hook_update().
 */
function forum_update($node) {
  if ($node->revision) {
379
380
381
382
383
    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
384
385
}

386
387
388
/**
 * Implementation of hook_form().
 */
Dries Buytaert's avatar
   
Dries Buytaert committed
389
function forum_form(&$node) {
390
391
  $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);
392

393
  if ($node->nid) {
394
    $forum_terms = taxonomy_node_get_terms_by_vocabulary(_forum_get_vid(), $node->nid);
Dries Buytaert's avatar
Dries Buytaert committed
395
    // if editing, give option to leave shadows
396
    $shadow = (count($forum_terms) > 1);
397
    $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
398
  }
Dries Buytaert's avatar
   
Dries Buytaert committed
399

400
  $form['body_filter']['body'] = array('#type' => 'textarea', '#title' => check_plain($type->body_label), '#default_value' => $node->body, '#rows' => 20, '#required' => TRUE);
401
  $form['body_filter']['format'] = filter_form($node->format);
Dries Buytaert's avatar
   
Dries Buytaert committed
402

403
  return $form;
Dries Buytaert's avatar
   
Dries Buytaert committed
404
405
}

406
407
408
409
410
411
/**
 * Implementation of hook_prepare; assign forum taxonomy when adding a topic from within a forum.
 */
function forum_prepare(&$node) {
  if (!$node->nid) {
    // new topic
412
413
    $node->taxonomy[arg(3)]->vid = _forum_get_vid();
    $node->taxonomy[arg(3)]->tid = arg(3);
414
415
416
  }
}

417
418
419
420
421
422
423
424
425
426
427
428
/**
 * Implementation of hook_insert().
 */
function forum_insert($node) {
  db_query('INSERT INTO {forum} (nid, vid, tid) VALUES (%d, %d, %d)', $node->nid, $node->vid, $node->tid);
}

/**
 * Implementation of hook_delete().
 */
function forum_delete(&$node) {
  db_query('DELETE FROM {forum} WHERE nid = %d', $node->nid);
Dries Buytaert's avatar
   
Dries Buytaert committed
429
}
Dries Buytaert's avatar
   
Dries Buytaert committed
430

431
432
433
434
435
436
437
438
439
440
441
/**
 * 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.
  $form['name'] = array(
    '#title' => t('Container name'),
    '#type' => 'textfield',
    '#default_value' => $edit['name'],
442
    '#maxlength' => 255,
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
    '#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']);
  }
471
  $form['#base'] = 'forum_form';
472

473
  return $form;
474
475
}

476
477
478
479
480
481
482
483
484
485
486
487
488
489
function forum_form_main($type, $edit = array()) {
  if ($_POST['op'] == t('Delete') || $_POST['confirm']) {
    return drupal_get_form('forum_confirm_delete', $edit['tid']);
  }
  switch ($type) {
    case 'forum':
      return drupal_get_form('forum_form_forum', $edit);
      break;
    case 'container':
      return drupal_get_form('forum_form_container', $edit);
      break;
  }
}

490
491
492
493
494
495
496
497
498
/**
 * 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()) {
  $form['name'] = array('#type' => 'textfield',
    '#title' => t('Forum name'),
    '#default_value' => $edit['name'],
499
    '#maxlength' => 255,
500
501
502
503
504
505
506
507
508
509
510
511
512
513
514
515
516
517
518
519
520
521
    '#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']);
  }
522
  $form['#base'] = 'forum_form';
523

524
  return $form;
525
526
527
528
529
530
531
532
533
534
535
}

/**
 * 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 {
536
    $container = FALSE;
537
538
539
540
541
542
543
544
545
546
547
    $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);
      }
548
      drupal_set_message(t('Created new @type %term.', array('%term' => $form_values['name'], '@type' => $type)));
549
550
      break;
    case SAVED_UPDATED:
551
      drupal_set_message(t('The @type %term has been updated.', array('%term' => $form_values['name'], '@type' => $type)));
552
553
      break;
  }
554
  return 'admin/content/forum';
555
556
557
558
559
560
561
}

/**
 * Returns a confirmation page for deleting a forum taxonomy term.
 *
 * @param $tid ID of the term to be deleted
 */
562
function forum_confirm_delete($tid) {
563
564
565
566
567
  $term = taxonomy_get_term($tid);

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

568
  return confirm_form($form, t('Are you sure you want to delete the forum %name?', array('%name' => $term->name)), 'admin/content/forum', 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'));
569
570
571
572
573
574
575
}

/**
 * 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']);
576
577
  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'])));
578

579
  return 'admin/content/forum';
580
581
582
583
584
585
586
587
588
589
590
591
}

/**
 * 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()))) {
592
        $rows[] = array(str_repeat(' -- ', $term->depth) .' '. l($term->name, 'forum/'. $term->tid), l(t('edit container'), 'admin/content/forum/edit/container/'. $term->tid));
593
594
      }
      else {
595
        $rows[] = array(str_repeat(' -- ', $term->depth) .' '. l($term->name, 'forum/'. $term->tid), l(t('edit forum'), 'admin/content/forum/edit/forum/'. $term->tid));
596
597
598
599
600
       }

    }
  }
  else {
601
    $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));
602
603
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
  }
  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)) {
Neil Drumm's avatar
Neil Drumm committed
637
        $options[$term->tid] = str_repeat(' -- ', $term->depth) . $term->name;
638
639
640
641
642
643
644
645
646
647
648
649
650
      }
    }
  }
  if ($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);
}

651
function forum_link_alter(&$node, &$links) {
652
  foreach ($links as $module => $link) {
653
    if (strstr($module, 'taxonomy_term')) {
654
655
      // 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.
656
      $tid = str_replace('taxonomy/term/', '', $link['href']);
657
658
      $term = taxonomy_get_term($tid);
      if ($term->vid == _forum_get_vid()) {
659
        $links[$module]['href'] = str_replace('taxonomy/term', 'forum', $link['href']);
660
      }
661
662
    }
  }
663
664
665
666
667
668
669
670
671
672
673
}

/**
 * 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) {
674
675
676
      // Create the forum vocabulary. Assign the vocabulary a low weight so
      // it will appear first in forum topic create and edit forms.
      $edit = array('name' => 'Forums', 'multiple' => 0, 'required' => 1, 'hierarchy' => 1, 'relations' => 0, 'module' => 'forum', 'weight' => -10, 'nodes' => array('forum' => 1));
677
678
679
680
681
682
683
684
685
      taxonomy_save_vocabulary($edit);
      $vid = $edit['vid'];
    }
    variable_set('forum_nav_vocabulary', $vid);
  }

  return $vid;
}

Dries Buytaert's avatar
   
Dries Buytaert committed
686
687
688
/**
 * Formats a topic for display
 *
689
 * @TODO Give a better description. Not sure where this function is used yet.
Dries Buytaert's avatar
   
Dries Buytaert committed
690
 */
Dries Buytaert's avatar
   
Dries Buytaert committed
691
function _forum_format($topic) {
692
  if ($topic && $topic->timestamp) {
693
    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
694
695
  }
  else {
696
    return t('n/a');
Dries Buytaert's avatar
   
Dries Buytaert committed
697
698
699
  }
}

Dries Buytaert's avatar
   
Dries Buytaert committed
700
701
702
/**
 * Returns a list of all forums for a given taxonomy id
 *
703
 * Forum objects contain the following fields
Dries Buytaert's avatar
   
Dries Buytaert committed
704
705
706
707
708
709
710
711
712
 * -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
713
function forum_get_forums($tid = 0) {
714

Dries Buytaert's avatar
   
Dries Buytaert committed
715
716
  $forums = array();
  $_forums = taxonomy_get_tree(variable_get('forum_nav_vocabulary', ''), $tid);
Dries Buytaert's avatar
   
Dries Buytaert committed
717

Dries Buytaert's avatar
   
Dries Buytaert committed
718
  if (count($_forums)) {
Dries Buytaert's avatar
   
Dries Buytaert committed
719

Dries Buytaert's avatar
   
Dries Buytaert committed
720
721
    $counts = array();

Dries Buytaert's avatar
   
Dries Buytaert committed
722
    $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";
723
    $sql = db_rewrite_sql($sql);
Dries Buytaert's avatar
   
Dries Buytaert committed
724
    $_counts = db_query($sql, $forum->tid);
Dries Buytaert's avatar
   
Dries Buytaert committed
725
726
727
    while ($count = db_fetch_object($_counts)) {
      $counts[$count->tid] = $count;
    }
Dries Buytaert's avatar
   
Dries Buytaert committed
728
  }
Dries Buytaert's avatar
   
Dries Buytaert committed
729

Dries Buytaert's avatar
   
Dries Buytaert committed
730
731
732
733
  foreach ($_forums as $forum) {
    if (in_array($forum->tid, variable_get('forum_containers', array()))) {
      $forum->container = 1;
    }
Dries Buytaert's avatar
   
Dries Buytaert committed
734

Dries Buytaert's avatar
   
Dries Buytaert committed
735
736
737
738
739
740
741
742
743
744
745
    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
746
    // used to join node_comment_statistics to users.
747
    $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 n.type='forum' AND tn.tid = %d ORDER BY ncs.last_comment_timestamp DESC";
748
    $sql = db_rewrite_sql($sql);
Dries Buytaert's avatar
   
Dries Buytaert committed
749
    $topic = db_fetch_object(db_query_range($sql, $forum->tid, 0, 1));
750

751
    $last_post = new stdClass();
Dries Buytaert's avatar
   
Dries Buytaert committed
752
753
754
755
    $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
756

Dries Buytaert's avatar
   
Dries Buytaert committed
757
758
759
760
    $forums[$forum->tid] = $forum;
  }

  return $forums;
Dries Buytaert's avatar
   
Dries Buytaert committed
761
762
}

763
764
765
766
767
/**
 * Calculate the number of nodes the user has not yet read and are newer
 * than NODE_NEW_LIMIT.
 */
function _forum_topics_unread($term, $uid) {
768
  $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";
769
  $sql = db_rewrite_sql($sql);
770
  return db_result(db_query($sql, $term, $uid, NODE_NEW_LIMIT));
Dries Buytaert's avatar
   
Dries Buytaert committed
771
772
}

Dries Buytaert's avatar
Dries Buytaert committed
773
function forum_get_topics($tid, $sortby, $forum_per_page) {
Dries Buytaert's avatar
   
Dries Buytaert committed
774
  global $user, $forum_topic_list_header;
Dries Buytaert's avatar
   
Dries Buytaert committed
775

Dries Buytaert's avatar
   
Dries Buytaert committed
776
  $forum_topic_list_header = array(
777
    array('data' => '&nbsp;', 'field' => NULL),
Dries Buytaert's avatar
   
Dries Buytaert committed
778
    array('data' => t('Topic'), 'field' => 'n.title'),
Dries Buytaert's avatar
   
Dries Buytaert committed
779
    array('data' => t('Replies'), 'field' => 'l.comment_count'),
Dries Buytaert's avatar
   
Dries Buytaert committed
780
    array('data' => t('Created'), 'field' => 'n.created'),
Dries Buytaert's avatar
   
Dries Buytaert committed
781
    array('data' => t('Last reply'), 'field' => 'l.last_comment_timestamp'),
Dries Buytaert's avatar
   
Dries Buytaert committed
782
  );
Dries Buytaert's avatar
   
Dries Buytaert committed
783

Dries Buytaert's avatar
   
Dries Buytaert committed
784
  $order = _forum_get_topic_order($sortby);
Dries Buytaert's avatar
   
Dries Buytaert committed
785
  for ($i = 0; $i < count($forum_topic_list_header); $i++) {
Dries Buytaert's avatar
   
Dries Buytaert committed
786
787
    if ($forum_topic_list_header[$i]['field'] == $order['field']) {
      $forum_topic_list_header[$i]['sort'] = $order['sort'];
Dries Buytaert's avatar
   
Dries Buytaert committed
788
789
790
791
    }
  }

  $term = taxonomy_get_term($tid);
Dries Buytaert's avatar
   
Dries Buytaert committed
792

793
  $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
794
  $sql .= tablesort_sql($forum_topic_list_header, 'n.sticky DESC,');
795
  $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
796

797
  $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
798

Steven Wittens's avatar
Steven Wittens committed
799
  $result = pager_query($sql, $forum_per_page, 0, $sql_count, $tid);
Dries Buytaert's avatar
   
Dries Buytaert committed
800
801

  while ($topic = db_fetch_object($result)) {
Dries Buytaert's avatar
Dries Buytaert committed
802
803
    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
804
      if ($topic->tid != $tid) {
Dries Buytaert's avatar
Dries Buytaert committed
805
        $topic->new = 0;
Dries Buytaert's avatar
   
Dries Buytaert committed
806
807
      }
      else {
Dries Buytaert's avatar
   
Dries Buytaert committed
808
        $history = _forum_user_last_visit($topic->nid);
Dries Buytaert's avatar
   
Dries Buytaert committed
809
        $topic->new_replies = comment_num_new($topic->nid, $history);
810
        $topic->new = $topic->new_replies || ($topic->timestamp > $history);
Dries Buytaert's avatar
   
Dries Buytaert committed
811
      }
812
813
    }
    else {
814
      // Do not track "new replies" status for topics if the user is anonymous.
Dries Buytaert's avatar
Dries Buytaert committed
815
816
      $topic->new_replies = 0;
      $topic->new = 0;
817
    }
Dries Buytaert's avatar
   
Dries Buytaert committed
818

Dries Buytaert's avatar
   
Dries Buytaert committed
819
    if ($topic->num_comments > 0) {
820
      $last_reply = new stdClass();
Dries Buytaert's avatar
   
Dries Buytaert committed
821
822
823
824
825
      $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
826
827
828
    $topics[] = $topic;
  }

Dries Buytaert's avatar
Dries Buytaert committed
829
  return $topics;
Dries Buytaert's avatar
   
Dries Buytaert committed
830
831
}

Dries Buytaert's avatar
   
Dries Buytaert committed
832
833
834
/**
 * Finds the first unread node for a given forum.
 */
Dries Buytaert's avatar
Dries Buytaert committed
835
function _forum_new($tid) {
Dries Buytaert's avatar
   
Dries Buytaert committed
836
837
  global $user;

Dries Buytaert's avatar
   
Dries Buytaert committed
838
  $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";
839
  $sql = db_rewrite_sql($sql);
Dries Buytaert's avatar
   
Dries Buytaert committed
840
  $nid = db_result(db_query_range($sql, $user->uid, $tid, NODE_NEW_LIMIT, 0, 1));
Dries Buytaert's avatar
   
Dries Buytaert committed
841
842
843
844

  return $nid ? $nid : 0;
}

845
/**
846
 * Menu callback; prints a forum listing.
847
 */
Dries Buytaert's avatar
Dries Buytaert committed
848
function forum_page($tid = 0) {
849
  if (module_exists('taxonomy') && module_exists('comment')) {
Dries Buytaert's avatar
Dries Buytaert committed
850
851
    $forum_per_page = variable_get('forum_per_page', 25);
    $sortby = variable_get('forum_order', 1);
Dries Buytaert's avatar
   
Dries Buytaert committed
852

Dries Buytaert's avatar
Dries Buytaert committed
853
854
855
856
    $forums = forum_get_forums($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
857
    }
Dries Buytaert's avatar
Dries Buytaert committed
858

Dries Buytaert's avatar
   
Dries Buytaert committed
859
    return theme('forum_display', $forums, $topics, $parents, $tid, $sortby, $forum_per_page);
Dries Buytaert's avatar
   
Dries Buytaert committed
860
861
  }
  else {
862
863
    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
864
865
866
  }
}

Dries Buytaert's avatar
   
Dries Buytaert committed
867
/**
Dries Buytaert's avatar
   
Dries Buytaert committed
868
869
 * Format the forum body.
 *
Dries Buytaert's avatar
   
Dries Buytaert committed
870
 * @ingroup themeable
Dries Buytaert's avatar
   
Dries Buytaert committed
871
 */
Dries Buytaert's avatar
   
Dries Buytaert committed
872
function theme_forum_display($forums, $topics, $parents, $tid, $sortby, $forum_per_page) {
Dries Buytaert's avatar
   
Dries Buytaert committed
873
  global $user;
Dries Buytaert's avatar
   
Dries Buytaert committed
874
  // forum list, topics list, topic browser and 'add new topic' link
Dries Buytaert's avatar
   
Dries Buytaert committed
875

Dries Buytaert's avatar
   
Dries Buytaert committed
876
  $vocabulary = taxonomy_get_vocabulary(variable_get('forum_nav_vocabulary', ''));
877
  $title = $vocabulary->name;
Dries Buytaert's avatar
   
Dries Buytaert committed
878

Dries Buytaert's avatar
   
Dries Buytaert committed
879
880
  // Breadcrumb navigation:
  $breadcrumb = array();
Dries Buytaert's avatar
   
Dries Buytaert committed
881
  if ($tid) {
Dries Buytaert's avatar
   
Dries Buytaert committed
882
    $breadcrumb[] = array('path' => 'forum', 'title' => $title);
Dries Buytaert's avatar
   
Dries Buytaert committed
883
  }
Dries Buytaert's avatar
   
Dries Buytaert committed
884
885

  if ($parents) {
Dries Buytaert's avatar
   
Dries Buytaert committed
886
887
    $parents = array_reverse($parents);
    foreach ($parents as $p) {
888
889
      if ($p->tid == $tid) {
        $title = $p->name;
Dries Buytaert's avatar
   
Dries Buytaert committed
890
891
      }
      else {
Dries Buytaert's avatar
   
Dries Buytaert committed
892
        $breadcrumb[] = array('path' => 'forum/'. $p->tid, 'title' => $p->name);
Dries Buytaert's avatar
   
Dries Buytaert committed
893
894
895
      }
    }
  }
896

Dries Buytaert's avatar
Dries Buytaert committed
897
  drupal_set_title(check_plain($title));
898

Dries Buytaert's avatar
   
Dries Buytaert committed
899
900
  $breadcrumb[] = array('path' => $_GET['q']);
  menu_set_location($breadcrumb);
Dries Buytaert's avatar
   
Dries Buytaert committed
901

Dries Buytaert's avatar
   
Dries Buytaert committed
902
  if (count($forums) || count($parents)) {
903
904
    $output  = '<div id="forum">';
    $output .= '<ul>';
Dries Buytaert's avatar
   
Dries Buytaert committed
905
906

    if (user_access('create forum topics')) {
907
      $output .= '<li>'. l(t('Post new forum topic.'), "node/add/forum/$tid") .'</li>';
Dries Buytaert's avatar
   
Dries Buytaert committed
908
909
    }
    else if ($user->uid) {
910
      $output .= '<li>'. t('You are not allowed to post a new forum topic.') .'</li>';
Dries Buytaert's avatar
   
Dries Buytaert committed
911
912
    }
    else {
913
      $output .= '<li>'. t('<a href="@login">Login</a> to post a new forum topic.', array('@login' => url('user/login', drupal_get_destination()))) .'</li>';
Dries Buytaert's avatar
   
Dries Buytaert committed
914
    }
915
    $output .= '</ul>';
Dries Buytaert's avatar
   
Dries Buytaert committed
916

Dries Buytaert's avatar
   
Dries Buytaert committed
917
    $output .= theme('forum_list', $forums, $parents, $tid);
Dries Buytaert's avatar
   
Dries Buytaert committed
918

Dries Buytaert's avatar
   
Dries Buytaert committed
919
    if ($tid && !in_array($tid, variable_get('forum_containers', array()))) {
Dries Buytaert's avatar
   
Dries Buytaert committed
920
      $output .= theme('forum_topic_list', $tid, $topics, $sortby, $forum_per_page);
921
      drupal_add_feed(url('taxonomy/term/'. $tid .'/0/feed'), 'RSS - '. $title);
Dries Buytaert's avatar
   
Dries Buytaert committed
922
    }
923
    $output .= '</div>';
Dries Buytaert's avatar
   
Dries Buytaert committed
924
925
  }
  else {
926
    drupal_set_title(t('No forums defined'));
Dries Buytaert's avatar
   
Dries Buytaert committed
927
    $output = '';
Dries Buytaert's avatar
   
Dries Buytaert committed
928
929
  }

930
  return $output;
Dries Buytaert's avatar
   
Dries Buytaert committed
931
932
}

Dries Buytaert's avatar
   
Dries Buytaert committed
933
/**
Dries Buytaert's avatar
   
Dries Buytaert committed
934
935
 * Format the forum listing.
 *
Dries Buytaert's avatar
   
Dries Buytaert committed
936
 * @ingroup themeable
Dries Buytaert's avatar
   
Dries Buytaert committed
937
 */
Dries Buytaert's avatar
   
Dries Buytaert committed
938
function theme_forum_list($forums, $parents, $tid) {
Dries Buytaert's avatar
   
Dries Buytaert committed
939
940
  global $user;

Dries Buytaert's avatar
   
Dries Buytaert committed
941
942
  if ($forums) {

Dries Buytaert's avatar
   
Dries Buytaert committed
943
    $header = array(t('Forum'), t('Topics'), t('Posts'), t('Last post'));
Dries Buytaert's avatar
   
Dries Buytaert committed
944
945

    foreach ($forums as $forum) {
Dries Buytaert's avatar
   
Dries Buytaert committed
946
      if ($forum->container) {
947
948
        $description  = '<div style="margin-left: '. ($forum->depth * 30) ."px;\">\n";
        $description .= ' <div class="name">'. l($forum->name, "forum/$forum->tid") ."</div>\n";
Dries Buytaert's avatar
   
Dries Buytaert committed
949
950

        if ($forum->description) {
951
          $description .= ' <div class="description">'. filter_xss_admin($forum->description) ."</div>\n";
Dries Buytaert's avatar
   
Dries Buytaert committed
952
953
954
        }
        $description .= "</div>\n";

Dries Buytaert's avatar
   
Dries Buytaert committed
955
        $rows[] = array(array('data' => $description, 'class' => 'container', 'colspan' => '4'));
956
      }
Dries Buytaert's avatar
   
Dries Buytaert committed
957
      else {
958
959
960
        $new_topics = _forum_topics_unread($forum->tid, $user->uid);
        $forum->old_topics = $forum->num_topics - $new_topics;
        if (!$user->uid) {
Dries Buytaert's avatar
   
Dries Buytaert committed
961
962
          $new_topics = 0;
        }
Dries Buytaert's avatar
   
Dries Buytaert committed
963

964
965
        $description  = '<div style="margin-left: '. ($forum->depth * 30) ."px;\">\n";
        $description .= ' <div class="name">'. l($forum->name, "forum/$forum->tid") ."</div>\n";
Dries Buytaert's avatar
   
Dries Buytaert committed
966

Dries Buytaert's avatar
   
Dries Buytaert committed
967
        if ($forum->description) {
968
          $description .= ' <div class="description">'. filter_xss_admin($forum->description) ."</div>\n";
Dries Buytaert's avatar
   
Dries Buytaert committed
969
970
        }
        $description .= "</div>\n";
Dries Buytaert's avatar
   
Dries Buytaert committed
971

Dries Buytaert's avatar
   
Dries Buytaert committed
972
        $rows[] = array(
Dries Buytaert's avatar
   
Dries Buytaert committed
973
          array('data' => $description, 'class' => 'forum'),
974
          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
975
976
          array('data' => $forum->num_posts, 'class' => 'posts'),
          array('data' => _forum_format($forum->last_post), 'class' => 'last-reply'));
Dries Buytaert's avatar
   
Dries Buytaert committed
977
      }
Dries Buytaert's avatar
   
Dries Buytaert committed
978
    }
Dries Buytaert's avatar
   
Dries Buytaert committed
979
980
981

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

Dries Buytaert's avatar
   
Dries Buytaert committed
982
983
984
985
  }

}

Dries Buytaert's avatar
   
Dries Buytaert committed
986
/**
Dries Buytaert's avatar
   
Dries Buytaert committed
987
988
 * Format the topic listing.
 *
Dries Buytaert's avatar
   
Dries Buytaert committed
989
 * @ingroup themeable
Dries Buytaert's avatar
   
Dries Buytaert committed
990
 */
Dries Buytaert's avatar
   
Dries Buytaert committed
991
992
function theme_forum_topic_list($tid, $topics, $sortby, $forum_per_page) {
  global $forum_topic_list_header;
Dries Buytaert's avatar
   
Dries Buytaert committed
993
994

  if ($topics) {
Dries Buytaert's avatar
   
Dries Buytaert committed
995

Dries Buytaert's avatar
   
Dries Buytaert committed
996
997
    foreach ($topics as $topic) {
      // folder is new if topic is new or there are new comments since last visit
Dries Buytaert's avatar
Dries Buytaert committed
998
      if ($topic->tid != $tid) {
Dries Buytaert's avatar
   
Dries Buytaert committed
999
        $rows[] = array(
1000
          array('data' => theme('forum_icon', $topic->new, $topic->num_comments, $topic->comment_mode, $topic->sticky), 'class' => 'icon'),
For faster browsing, not all history is shown. View entire blame