taxonomy.module 54.2 KB
Newer Older
Dries's avatar
 
Dries committed
1
<?php
Kjartan's avatar
Kjartan committed
2
// $Id$
Dries's avatar
 
Dries committed
3

Dries's avatar
 
Dries committed
4 5 6 7 8
/**
 * @file
 * Enables the organization of content into categories.
 */

Dries's avatar
 
Dries committed
9 10 11
/**
 * Implementation of hook_perm().
 */
Kjartan's avatar
Kjartan committed
12
function taxonomy_perm() {
Dries's avatar
 
Dries committed
13
  return array('administer taxonomy');
Kjartan's avatar
Kjartan committed
14
}
Dries's avatar
 
Dries committed
15

16 17 18 19 20 21 22 23 24 25 26
/**
 * Implementation of hook_theme()
 */
function taxonomy_theme() {
  return array(
    'taxonomy_term_select' => array(
      'arguments' => array('element' => NULL),
    ),
  );
}

Dries's avatar
 
Dries committed
27 28 29 30 31 32 33
/**
 * Implementation of hook_link().
 *
 * This hook is extended with $type = 'taxonomy terms' to allow themes to
 * print lists of terms associated with a node. Themes can print taxonomy
 * links with:
 *
34
 * if (module_exists('taxonomy')) {
35 36
 *   $terms = taxonomy_link('taxonomy terms', $node);
 *   print theme('links', $terms);
Dries's avatar
 
Dries committed
37 38
 * }
 */
Dries's avatar
 
Dries committed
39
function taxonomy_link($type, $node = NULL) {
Dries's avatar
 
Dries committed
40
  if ($type == 'taxonomy terms' && $node != NULL) {
Kjartan's avatar
 
Kjartan committed
41
    $links = array();
42
    if (!empty($node->taxonomy)) {
43
      foreach ($node->taxonomy as $term) {
44 45 46 47
        // On preview, we get tids.
        if (is_numeric($term)) {
          $term = taxonomy_get_term($term);
        }
48
        $links['taxonomy_term_'. $term->tid] = array(
49 50 51
          'title' => $term->name,
          'href' => taxonomy_term_path($term),
          'attributes' => array('rel' => 'tag', 'title' => strip_tags($term->description))
52
        );
Dries's avatar
 
Dries committed
53
      }
Dries's avatar
 
Dries committed
54
    }
Kjartan's avatar
Kjartan committed
55

56
    // We call this hook again because some modules and themes call taxonomy_link('taxonomy terms') directly
57
    drupal_alter('link', $links, $node);
58 59

    return $links;
60 61 62
  }
}

63 64 65 66 67 68 69 70 71 72
/**
 * For vocabularies not maintained by taxonomy.module, give the maintaining
 * module a chance to provide a path for terms in that vocabulary.
 *
 * @param $term
 *   A term object.
 * @return
 *   An internal Drupal path.
 */

73
function taxonomy_term_path($term) {
74
  $vocabulary = taxonomy_vocabulary_load($term->vid);
75 76 77 78 79 80
  if ($vocabulary->module != 'taxonomy' && $path = module_invoke($vocabulary->module, 'term_path', $term)) {
    return $path;
  }
  return 'taxonomy/term/'. $term->tid;
}

Dries's avatar
 
Dries committed
81 82 83
/**
 * Implementation of hook_menu().
 */
84 85
function taxonomy_menu() {
  $items['admin/content/taxonomy'] = array(
86 87
    'title' => 'Categories',
    'description' => 'Create vocabularies and terms to categorize your content.',
88 89 90 91 92
    'page callback' => 'taxonomy_overview_vocabularies',
    'access arguments' => array('administer taxonomy'),
  );

  $items['admin/content/taxonomy/list'] = array(
93
    'title' => 'List',
94 95 96 97 98
    'type' => MENU_DEFAULT_LOCAL_TASK,
    'weight' => -10,
  );

  $items['admin/content/taxonomy/add/vocabulary'] = array(
99
    'title' => 'Add vocabulary',
100 101 102
    'page callback' => 'drupal_get_form',
    'page arguments' => array('taxonomy_form_vocabulary'),
    'type' => MENU_LOCAL_TASK,
103
    'parent' => 'admin/content/taxonomy',
104 105
  );

106
  $items['admin/content/taxonomy/edit/vocabulary/%taxonomy_vocabulary'] = array(
107
    'title' => 'Edit vocabulary',
108 109 110 111 112 113
    'page callback' => 'taxonomy_admin_vocabulary_edit',
    'page arguments' => array(5),
    'type' => MENU_CALLBACK,
  );

  $items['admin/content/taxonomy/edit/term'] = array(
114
    'title' => 'Edit term',
115 116 117 118 119
    'page callback' => 'taxonomy_admin_term_edit',
    'type' => MENU_CALLBACK,
  );

  $items['taxonomy/term'] = array(
120
    'title' => 'Taxonomy term',
121 122 123 124 125 126
    'page callback' => 'taxonomy_term_page',
    'access arguments' => array('access content'),
    'type' => MENU_CALLBACK,
  );

  $items['taxonomy/autocomplete'] = array(
127
    'title' => 'Autocomplete taxonomy',
128 129 130 131
    'page callback' => 'taxonomy_autocomplete',
    'access arguments' => array('access content'),
    'type' => MENU_CALLBACK,
  );
132
  $items['admin/content/taxonomy/%taxonomy_vocabulary'] = array(
133
    'title' => 'List terms',
134 135 136 137 138 139
    'page callback' => 'taxonomy_overview_terms',
    'page arguments' => array(3),
    'access arguments' => array('administer taxonomy'),
    'type' => MENU_CALLBACK,
  );

140
  $items['admin/content/taxonomy/%taxonomy_vocabulary/list'] = array(
141
    'title' => 'List',
142 143 144 145
    'type' => MENU_DEFAULT_LOCAL_TASK,
    'weight' => -10,
  );

146
  $items['admin/content/taxonomy/%taxonomy_vocabulary/add/term'] = array(
147
    'title' => 'Add term',
148 149 150
    'page callback' => 'drupal_get_form',
    'page arguments' => array('taxonomy_form_term', 3),
    'type' => MENU_LOCAL_TASK,
151
    'parent' => 'admin/content/taxonomy/%taxonomy_vocabulary',
152
  );
Dries's avatar
 
Dries committed
153

Dries's avatar
 
Dries committed
154 155
  return $items;
}
Dries's avatar
 
Dries committed
156

157 158 159 160
/**
 * List and manage vocabularies.
 */
function taxonomy_overview_vocabularies() {
161
  $vocabularies = taxonomy_get_vocabularies();
162
  $rows = array();
163 164 165
  foreach ($vocabularies as $vocabulary) {
    $types = array();
    foreach ($vocabulary->nodes as $type) {
166
      $node_type = node_get_types('name', $type);
167 168
      $types[] = $node_type ? $node_type : $type;
    }
169 170
    $rows[] = array('name' => check_plain($vocabulary->name),
      'type' => implode(', ', $types),
171 172 173
      'edit' => l(t('edit vocabulary'), "admin/content/taxonomy/edit/vocabulary/$vocabulary->vid"),
      'list' => l(t('list terms'), "admin/content/taxonomy/$vocabulary->vid"),
      'add' => l(t('add terms'), "admin/content/taxonomy/$vocabulary->vid/add/term")
174 175 176
    );
  }
  if (empty($rows)) {
Steven Wittens's avatar
Steven Wittens committed
177
    $rows[] = array(array('data' => t('No categories available.'), 'colspan' => '5'));
178
  }
drumm's avatar
drumm committed
179
  $header = array(t('Name'), t('Type'), array('data' => t('Operations'), 'colspan' => '3'));
180

181
  return theme('table', $header, $rows, array('id' => 'taxonomy'));
182 183 184 185 186 187
}

/**
 * Display a tree of all the terms in a vocabulary, with options to edit
 * each one.
 */
188
function taxonomy_overview_terms($vocabulary) {
189 190 191 192 193
  $destination = drupal_get_destination();

  $header = array(t('Name'), t('Operations'));

  drupal_set_title(check_plain($vocabulary->name));
194
  $start_from      = isset($_GET['page']) ? $_GET['page'] : 0;
195 196 197 198 199 200 201
  $total_entries   = 0;  // total count for pager
  $page_increment  = 25; // number of tids per page
  $displayed_count = 0;  // number of tids shown

  $tree = taxonomy_get_tree($vocabulary->vid);
  foreach ($tree as $term) {
    $total_entries++; // we're counting all-totals, not displayed
202 203 204
    if (($start_from && ($start_from * $page_increment) >= $total_entries) || ($displayed_count == $page_increment)) {
      continue;
    }
205
    $rows[] = array(str_repeat('--', $term->depth) .' '. l($term->name, "taxonomy/term/$term->tid"), l(t('edit'), "admin/content/taxonomy/edit/term/$term->tid", array('query' => $destination)));
206 207 208
    $displayed_count++; // we're counting tids displayed
  }

209
  if (empty($rows)) {
210 211 212 213 214 215 216 217 218 219 220 221 222 223 224 225
    $rows[] = array(array('data' => t('No terms available.'), 'colspan' => '2'));
  }

  $GLOBALS['pager_page_array'][] = $start_from;  // FIXME
  $GLOBALS['pager_total'][] = intval($total_entries / $page_increment) + 1; // FIXME

  if ($total_entries >= $page_increment) {
    $rows[] = array(array('data' => theme('pager', NULL, $page_increment), 'colspan' => '2'));
  }

  return theme('table', $header, $rows, array('id' => 'taxonomy'));
}

/**
 * Display form for adding and editing vocabularies.
 */
Kjartan's avatar
Kjartan committed
226
function taxonomy_form_vocabulary($edit = array()) {
227 228 229 230 231 232 233 234 235 236 237 238
  $edit += array(
    'name' => '',
    'description' => '',
    'help' => '',
    'nodes' => array(),
    'hierarchy' => 0,
    'relations' => 0,
    'tags' => 0,
    'multiple' => 0,
    'required' => 0,
    'weight' => 0,
  );
239 240 241
  $form['name'] = array('#type' => 'textfield',
    '#title' => t('Vocabulary name'),
    '#default_value' => $edit['name'],
242
    '#maxlength' => 255,
243
    '#description' => t('The name for this vocabulary. Example: "Topic".'),
244 245 246 247 248 249 250 251 252
    '#required' => TRUE,
  );
  $form['description'] = array('#type' => 'textarea',
    '#title' => t('Description'),
    '#default_value' => $edit['description'],
    '#description' => t('Description of the vocabulary; can be used by modules.'),
  );
  $form['help'] = array('#type' => 'textfield',
    '#title' => t('Help text'),
253
    '#maxlength' => 255,
254 255 256 257
    '#default_value' => $edit['help'],
    '#description' => t('Instructions to present to the user when choosing a term.'),
  );
  $form['nodes'] = array('#type' => 'checkboxes',
258
    '#title' => t('Content types'),
259
    '#default_value' => $edit['nodes'],
260
    '#options' => node_get_types('names'),
261
    '#description' => t('A list of content types you would like to categorize using this vocabulary.'),
262 263 264 265 266
  );
  $form['hierarchy'] = array('#type' => 'radios',
    '#title' => t('Hierarchy'),
    '#default_value' => $edit['hierarchy'],
    '#options' => array(t('Disabled'), t('Single'), t('Multiple')),
267
    '#description' => t('Allows <a href="@help-url">a tree-like hierarchy</a> between terms of this vocabulary.', array('@help-url' => url('admin/help/taxonomy', array('absolute' => TRUE)))),
268 269 270 271
  );
  $form['relations'] = array('#type' => 'checkbox',
    '#title' => t('Related terms'),
    '#default_value' => $edit['relations'],
272
    '#description' => t('Allows <a href="@help-url">related terms</a> in this vocabulary.', array('@help-url' => url('admin/help/taxonomy', array('absolute' => TRUE)))),
273 274 275 276 277 278 279 280 281 282 283 284 285 286 287 288 289 290 291 292 293
  );
  $form['tags'] = array('#type' => 'checkbox',
    '#title' => t('Free tagging'),
    '#default_value' => $edit['tags'],
    '#description' => t('Content is categorized by typing terms instead of choosing from a list.'),
  );
  $form['multiple'] = array('#type' => 'checkbox',
    '#title' => t('Multiple select'),
    '#default_value' => $edit['multiple'],
    '#description' => t('Allows nodes to have more than one term from this vocabulary (always true for free tagging).'),
  );
  $form['required'] = array('#type' => 'checkbox',
    '#title' => t('Required'),
    '#default_value' => $edit['required'],
    '#description' => t('If enabled, every node <strong>must</strong> have at least one term in this vocabulary.'),
  );
  $form['weight'] = array('#type' => 'weight',
    '#title' => t('Weight'),
    '#default_value' => $edit['weight'],
    '#description' => t('In listings, the heavier vocabularies will sink and the lighter vocabularies will be positioned nearer the top.'),
  );
294

295
  $form['submit'] = array('#type' => 'submit', '#value' => t('Submit'));
296
  if (isset($edit['vid'])) {
297
    $form['delete'] = array('#type' => 'submit', '#value' => t('Delete'));
298
    $form['vid'] = array('#type' => 'value', '#value' => $edit['vid']);
299
    $form['module'] = array('#type' => 'value', '#value' => $edit['module']);
Dries's avatar
 
Dries committed
300
  }
301
  return $form;
Kjartan's avatar
Kjartan committed
302
}
Kjartan's avatar
Kjartan committed
303

304 305 306 307 308 309 310
/**
 * Accept the form submission for a vocabulary and save the results.
 */
function taxonomy_form_vocabulary_submit($form_id, $form_values) {
  // Fix up the nodes array to remove unchecked nodes.
  $form_values['nodes'] = array_filter($form_values['nodes']);
  switch (taxonomy_save_vocabulary($form_values)) {
311 312
    case SAVED_NEW:
      drupal_set_message(t('Created new vocabulary %name.', array('%name' => $form_values['name'])));
313
      watchdog('taxonomy', 'Created new vocabulary %name.', array('%name' => $form_values['name']), WATCHDOG_NOTICE, l(t('edit'), 'admin/content/taxonomy/edit/vocabulary/'. $form_values['vid']));
314 315 316
      break;
    case SAVED_UPDATED:
      drupal_set_message(t('Updated vocabulary %name.', array('%name' => $form_values['name'])));
317
      watchdog('taxonomy', 'Updated vocabulary %name.', array('%name' => $form_values['name']), WATCHDOG_NOTICE, l(t('edit'), 'admin/content/taxonomy/edit/vocabulary/'. $form_values['vid']));
318
      break;
319
  }
320

321
  return 'admin/content/taxonomy';
322 323
}

324
function taxonomy_save_vocabulary(&$edit) {
325
  $edit['nodes'] = empty($edit['nodes']) ? array() : $edit['nodes'];
Dries's avatar
 
Dries committed
326

327
  if (!empty($edit['vid']) && !empty($edit['name'])) {
328
    db_query("UPDATE {vocabulary} SET name = '%s', description = '%s', help = '%s', multiple = %d, required = %d, hierarchy = %d, relations = %d, tags = %d, weight = %d, module = '%s' WHERE vid = %d", $edit['name'], $edit['description'], $edit['help'], $edit['multiple'], $edit['required'], $edit['hierarchy'], $edit['relations'], $edit['tags'], $edit['weight'], isset($edit['module']) ? $edit['module'] : 'taxonomy', $edit['vid']);
Dries's avatar
 
Dries committed
329
    db_query("DELETE FROM {vocabulary_node_types} WHERE vid = %d", $edit['vid']);
330
    foreach ($edit['nodes'] as $type => $selected) {
Dries's avatar
 
Dries committed
331 332
      db_query("INSERT INTO {vocabulary_node_types} (vid, type) VALUES (%d, '%s')", $edit['vid'], $type);
    }
Dries's avatar
 
Dries committed
333
    module_invoke_all('taxonomy', 'update', 'vocabulary', $edit);
334
    $status = SAVED_UPDATED;
Dries's avatar
 
Dries committed
335
  }
336
  else if (!empty($edit['vid'])) {
337
    $status = taxonomy_del_vocabulary($edit['vid']);
Kjartan's avatar
Kjartan committed
338 339
  }
  else {
340
    $edit['vid'] = db_next_id('{vocabulary}_vid');
341
    db_query("INSERT INTO {vocabulary} (vid, name, description, help, multiple, required, hierarchy, relations, tags, weight, module) VALUES (%d, '%s', '%s', '%s', %d, %d, %d, %d, %d, %d, '%s')", $edit['vid'], $edit['name'], isset($edit['description']) ? $edit['description'] : NULL, isset($edit['help']) ? $edit['help'] : NULL, $edit['multiple'], $edit['required'], $edit['hierarchy'], $edit['relations'], isset($edit['tags']) ? $edit['tags'] : NULL, $edit['weight'], isset($edit['module']) ? $edit['module'] : 'taxonomy');
342
    foreach ($edit['nodes'] as $type => $selected) {
Dries's avatar
 
Dries committed
343 344
      db_query("INSERT INTO {vocabulary_node_types} (vid, type) VALUES (%d, '%s')", $edit['vid'], $type);
    }
Dries's avatar
 
Dries committed
345
    module_invoke_all('taxonomy', 'insert', 'vocabulary', $edit);
346
    $status = SAVED_NEW;
Kjartan's avatar
Kjartan committed
347
  }
Dries's avatar
 
Dries committed
348 349

  cache_clear_all();
Dries's avatar
 
Dries committed
350

351
  return $status;
Kjartan's avatar
Kjartan committed
352
}
Dries's avatar
 
Dries committed
353

354 355 356 357 358 359 360 361
/**
 * Delete a vocabulary.
 *
 * @param $vid
 *   A vocabulary ID.
 * @return
 *   Constant indicating items were deleted.
 */
Kjartan's avatar
Kjartan committed
362
function taxonomy_del_vocabulary($vid) {
363
  $vocabulary = (array) taxonomy_vocabulary_load($vid);
Dries's avatar
 
Dries committed
364

Dries's avatar
 
Dries committed
365
  db_query('DELETE FROM {vocabulary} WHERE vid = %d', $vid);
Dries's avatar
 
Dries committed
366
  db_query('DELETE FROM {vocabulary_node_types} WHERE vid = %d', $vid);
Dries's avatar
 
Dries committed
367
  $result = db_query('SELECT tid FROM {term_data} WHERE vid = %d', $vid);
Kjartan's avatar
Kjartan committed
368 369
  while ($term = db_fetch_object($result)) {
    taxonomy_del_term($term->tid);
Dries's avatar
 
Dries committed
370
  }
Dries's avatar
 
Dries committed
371

Dries's avatar
 
Dries committed
372
  module_invoke_all('taxonomy', 'delete', 'vocabulary', $vocabulary);
Dries's avatar
 
Dries committed
373

Dries's avatar
 
Dries committed
374 375
  cache_clear_all();

376
  return SAVED_DELETED;
Dries's avatar
 
Dries committed
377 378
}

379
function taxonomy_vocabulary_confirm_delete($vid) {
380
  $vocabulary = taxonomy_vocabulary_load($vid);
Dries's avatar
 
Dries committed
381

382 383 384
  $form['type'] = array('#type' => 'value', '#value' => 'vocabulary');
  $form['vid'] = array('#type' => 'value', '#value' => $vid);
  $form['name'] = array('#type' => 'value', '#value' => $vocabulary->name);
385
  return confirm_form($form,
386
                  t('Are you sure you want to delete the vocabulary %title?',
387
                  array('%title' => $vocabulary->name)),
388 389
                  'admin/content/taxonomy',
                  t('Deleting a vocabulary will delete all the terms in it. This action cannot be undone.'),
390
                  t('Delete'),
391
                  t('Cancel'));
Kjartan's avatar
Kjartan committed
392
}
Dries's avatar
 
Dries committed
393

394 395
function taxonomy_vocabulary_confirm_delete_submit($form_id, $form_values) {
  $status = taxonomy_del_vocabulary($form_values['vid']);
396
  drupal_set_message(t('Deleted vocabulary %name.', array('%name' => $form_values['name'])));
397
  watchdog('taxonomy', 'Deleted vocabulary %name.', array('%name' => $form_values['name']), WATCHDOG_NOTICE);
398
  return 'admin/content/taxonomy';
399 400
}

401
function taxonomy_form_term($vocabulary, $edit = array()) {
402 403 404 405 406 407
  $edit += array(
    'name' => '',
    'description' => '',
    'tid' => NULL,
    'weight' => 0,
  );
408 409 410 411
  $form['name'] = array(
    '#type' => 'textfield',
    '#title' => t('Term name'),
    '#default_value' => $edit['name'],
412
    '#maxlength' => 255,
413 414
    '#description' => t('The name of this term.'),
    '#required' => TRUE);
415

416 417 418 419 420
  $form['description'] = array(
    '#type' => 'textarea',
    '#title' => t('Description'),
    '#default_value' => $edit['description'],
    '#description' => t('A description of the term.'));
Dries's avatar
 
Dries committed
421

Kjartan's avatar
Kjartan committed
422
  if ($vocabulary->hierarchy) {
Dries's avatar
 
Dries committed
423
    $parent = array_keys(taxonomy_get_parents($edit['tid']));
424
    $children = taxonomy_get_tree($vocabulary->vid, $edit['tid']);
Dries's avatar
 
Dries committed
425

Dries's avatar
 
Dries committed
426
    // A term can't be the child of itself, nor of its children.
Dries's avatar
 
Dries committed
427 428 429
    foreach ($children as $child) {
      $exclude[] = $child->tid;
    }
Dries's avatar
 
Dries committed
430
    $exclude[] = $edit['tid'];
Dries's avatar
 
Dries committed
431

Kjartan's avatar
Kjartan committed
432
    if ($vocabulary->hierarchy == 1) {
433
      $form['parent'] = _taxonomy_term_select(t('Parent'), 'parent', $parent, $vocabulary->vid, l(t('Parent term'), 'admin/help/taxonomy', array('fragment' => 'parent')) .'.', 0, '<'. t('root') .'>', $exclude);
Dries's avatar
 
Dries committed
434
    }
Kjartan's avatar
Kjartan committed
435
    elseif ($vocabulary->hierarchy == 2) {
436
      $form['parent'] = _taxonomy_term_select(t('Parents'), 'parent', $parent, $vocabulary->vid, l(t('Parent terms'), 'admin/help/taxonomy', array('fragment' => 'parent')) .'.', 1, '<'. t('root') .'>', $exclude);
Dries's avatar
 
Dries committed
437
    }
Kjartan's avatar
Kjartan committed
438
  }
Dries's avatar
 
Dries committed
439

440
  if ($vocabulary->relations) {
441
    $form['relations'] = _taxonomy_term_select(t('Related terms'), 'relations', array_keys(taxonomy_get_related($edit['tid'])), $vocabulary->vid, NULL, 1, '<'. t('none') .'>', array($edit['tid']));
442 443
  }

444 445 446 447
  $form['synonyms'] = array(
    '#type' => 'textarea',
    '#title' => t('Synonyms'),
    '#default_value' => implode("\n", taxonomy_get_synonyms($edit['tid'])),
448
    '#description' => t('<a href="@help-url">Synonyms</a> of this term, one synonym per line.', array('@help-url' => url('admin/help/taxonomy', array('absolute' => TRUE)))));
449 450 451 452 453 454 455 456 457 458 459
  $form['weight'] = array(
    '#type' => 'weight',
    '#title' => t('Weight'),
    '#default_value' => $edit['weight'],
    '#description' => t('In listings, the heavier terms will sink and the lighter terms will be positioned nearer the top.'));
  $form['vid'] = array(
    '#type' => 'value',
    '#value' => $vocabulary->vid);
  $form['submit'] = array(
    '#type' => 'submit',
    '#value' => t('Submit'));
Kjartan's avatar
Kjartan committed
460

Dries's avatar
 
Dries committed
461
  if ($edit['tid']) {
462 463 464 465 466 467
    $form['delete'] = array(
      '#type' => 'submit',
      '#value' => t('Delete'));
    $form['tid'] = array(
      '#type' => 'value',
      '#value' => $edit['tid']);
Dries's avatar
 
Dries committed
468
  }
469
  else {
470
    $form['destination'] = array('#type' => 'hidden', '#value' => $_GET['q']);
471
  }
Dries's avatar
 
Dries committed
472

473
  return $form;
Kjartan's avatar
Kjartan committed
474
}
Dries's avatar
 
Dries committed
475

476 477 478 479 480 481
/**
 * Accept the form submission for a taxonomy term and save the result.
 */
function taxonomy_form_term_submit($form_id, $form_values) {
  switch (taxonomy_save_term($form_values)) {
    case SAVED_NEW:
482
      drupal_set_message(t('Created new term %term.', array('%term' => $form_values['name'])));
483
      watchdog('taxonomy', 'Created new term %term.', array('%term' => $form_values['name']), WATCHDOG_NOTICE, l(t('edit'), 'admin/content/taxonomy/edit/term/'. $form_values['tid']));
484 485
      break;
    case SAVED_UPDATED:
486
      drupal_set_message(t('Updated term %term.', array('%term' => $form_values['name'])));
487
      watchdog('taxonomy', 'Updated term %term.', array('%term' => $form_values['name']), WATCHDOG_NOTICE, l(t('edit'), 'admin/content/taxonomy/edit/term/'. $form_values['tid']));
488 489
      break;
  }
490
  return 'admin/content/taxonomy';
491 492
}

493 494 495 496 497 498 499 500
/**
 * Helper function for taxonomy_form_term_submit().
 *
 * @param $form_values
 * @return
 *   Status constant indicating if term was inserted or updated.
 */
function taxonomy_save_term(&$form_values) {
501 502 503 504 505
  $form_values += array(
    'description' => '',
    'weight' => 0
  );

506
  if (!empty($form_values['tid']) && $form_values['name']) {
507
    db_query("UPDATE {term_data} SET name = '%s', description = '%s', weight = %d WHERE tid = %d", $form_values['name'], $form_values['description'], $form_values['weight'], $form_values['tid']);
508
    $hook = 'update';
509
    $status = SAVED_UPDATED;
Kjartan's avatar
Kjartan committed
510
  }
511
  else if (!empty($form_values['tid'])) {
512
    return taxonomy_del_term($form_values['tid']);
Kjartan's avatar
Kjartan committed
513 514
  }
  else {
515 516
    $form_values['tid'] = db_next_id('{term_data}_tid');
    db_query("INSERT INTO {term_data} (tid, name, description, vid, weight) VALUES (%d, '%s', '%s', %d, %d)", $form_values['tid'], $form_values['name'], $form_values['description'], $form_values['vid'], $form_values['weight']);
517
    $hook = 'insert';
518
    $status = SAVED_NEW;
Kjartan's avatar
Kjartan committed
519
  }
Dries's avatar
 
Dries committed
520

521
  db_query('DELETE FROM {term_relation} WHERE tid1 = %d OR tid2 = %d', $form_values['tid'], $form_values['tid']);
522
  if (!empty($form_values['relations'])) {
523
    foreach ($form_values['relations'] as $related_id) {
Kjartan's avatar
Kjartan committed
524
      if ($related_id != 0) {
525
        db_query('INSERT INTO {term_relation} (tid1, tid2) VALUES (%d, %d)', $form_values['tid'], $related_id);
Dries's avatar
 
Dries committed
526
      }
Kjartan's avatar
Kjartan committed
527
    }
Kjartan's avatar
Kjartan committed
528
  }
Dries's avatar
 
Dries committed
529

530 531 532
  db_query('DELETE FROM {term_hierarchy} WHERE tid = %d', $form_values['tid']);
  if (!isset($form_values['parent']) || empty($form_values['parent'])) {
    $form_values['parent'] = array(0);
Kjartan's avatar
Kjartan committed
533
  }
534 535
  if (is_array($form_values['parent'])) {
    foreach ($form_values['parent'] as $parent) {
536 537
      if (is_array($parent)) {
        foreach ($parent as $tid) {
538
          db_query('INSERT INTO {term_hierarchy} (tid, parent) VALUES (%d, %d)', $form_values['tid'], $tid);
539 540 541
        }
      }
      else {
542
        db_query('INSERT INTO {term_hierarchy} (tid, parent) VALUES (%d, %d)', $form_values['tid'], $parent);
543
      }
Dries's avatar
 
Dries committed
544
    }
Kjartan's avatar
Kjartan committed
545
  }
546
  else {
547
    db_query('INSERT INTO {term_hierarchy} (tid, parent) VALUES (%d, %d)', $form_values['tid'], $form_values['parent']);
548
  }
Dries's avatar
 
Dries committed
549

550
  db_query('DELETE FROM {term_synonym} WHERE tid = %d', $form_values['tid']);
551
  if (!empty($form_values['synonyms'])) {
552
    foreach (explode ("\n", str_replace("\r", '', $form_values['synonyms'])) as $synonym) {
Dries's avatar
 
Dries committed
553
      if ($synonym) {
554
        db_query("INSERT INTO {term_synonym} (tid, name) VALUES (%d, '%s')", $form_values['tid'], chop($synonym));
Dries's avatar
 
Dries committed
555
      }
Kjartan's avatar
Kjartan committed
556
    }
Dries's avatar
 
Dries committed
557
  }
Dries's avatar
 
Dries committed
558

559
  if (isset($hook)) {
560
    module_invoke_all('taxonomy', $hook, 'term', $form_values);
561 562
  }

Dries's avatar
 
Dries committed
563 564
  cache_clear_all();

565
  return $status;
Kjartan's avatar
Kjartan committed
566
}
Dries's avatar
 
Dries committed
567

568 569 570 571 572 573 574 575
/**
 * Delete a term.
 *
 * @param $tid
 *   The term ID.
 * @return
 *   Status constant indicating deletion.
 */
Kjartan's avatar
Kjartan committed
576
function taxonomy_del_term($tid) {
577 578 579 580 581 582 583 584 585 586 587 588 589 590
  $tids = array($tid);
  while ($tids) {
    $children_tids = $orphans = array();
    foreach ($tids as $tid) {
      // See if any of the term's children are about to be become orphans:
      if ($children = taxonomy_get_children($tid)) {
        foreach ($children as $child) {
          // If the term has multiple parents, we don't delete it.
          $parents = taxonomy_get_parents($child->tid);
          if (count($parents) == 1) {
            $orphans[] = $child->tid;
          }
        }
      }
Dries's avatar
 
Dries committed
591

592
      $term = (array) taxonomy_get_term($tid);
Dries's avatar
 
Dries committed
593

594 595 596 597 598
      db_query('DELETE FROM {term_data} WHERE tid = %d', $tid);
      db_query('DELETE FROM {term_hierarchy} WHERE tid = %d', $tid);
      db_query('DELETE FROM {term_relation} WHERE tid1 = %d OR tid2 = %d', $tid, $tid);
      db_query('DELETE FROM {term_synonym} WHERE tid = %d', $tid);
      db_query('DELETE FROM {term_node} WHERE tid = %d', $tid);
Dries's avatar
 
Dries committed
599

600 601
      module_invoke_all('taxonomy', 'delete', 'term', $term);
    }
Dries's avatar
 
Dries committed
602

603 604
    $tids = $orphans;
  }
Dries's avatar
 
Dries committed
605

Dries's avatar
 
Dries committed
606
  cache_clear_all();
607 608

  return SAVED_DELETED;
Dries's avatar
 
Dries committed
609 610
}

611
function taxonomy_term_confirm_delete($tid) {
Dries's avatar
 
Dries committed
612 613
  $term = taxonomy_get_term($tid);

614 615 616
  $form['type'] = array('#type' => 'value', '#value' => 'term');
  $form['name'] = array('#type' => 'value', '#value' => $term->name);
  $form['tid'] = array('#type' => 'value', '#value' => $tid);
617
  return confirm_form($form,
618
                  t('Are you sure you want to delete the term %title?',
619
                  array('%title' => $term->name)),
620
                  'admin/content/taxonomy',
621 622
                  t('Deleting a term will delete all its children if there are any. This action cannot be undone.'),
                  t('Delete'),
623
                  t('Cancel'));
Kjartan's avatar
Kjartan committed
624
}
Dries's avatar
 
Dries committed
625

626 627
function taxonomy_term_confirm_delete_submit($form_id, $form_values) {
  taxonomy_del_term($form_values['tid']);
628
  drupal_set_message(t('Deleted term %name.', array('%name' => $form_values['name'])));
629
  watchdog('taxonomy', 'Deleted term %name.', array('%name' => $form_values['name']), WATCHDOG_NOTICE);
630
  return 'admin/content/taxonomy';
Kjartan's avatar
Kjartan committed
631 632
}

Dries's avatar
 
Dries committed
633 634 635
/**
 * Generate a form element for selecting terms from a vocabulary.
 */
Dries's avatar
 
Dries committed
636
function taxonomy_form($vid, $value = 0, $help = NULL, $name = 'taxonomy') {
637
  $vocabulary = taxonomy_vocabulary_load($vid);
638
  $help = ($help) ? $help : $vocabulary->help;
Kjartan's avatar
Kjartan committed
639 640 641 642
  if ($vocabulary->required) {
    $blank = 0;
  }
  else {
Dries's avatar
 
Dries committed
643
    $blank = '<'. t('none') .'>';
Kjartan's avatar
Kjartan committed
644
  }
Dries's avatar
 
Dries committed
645

646
  return _taxonomy_term_select(check_plain($vocabulary->name), $name, $value, $vid, $help, intval($vocabulary->multiple), $blank);
Kjartan's avatar
Kjartan committed
647
}
Dries's avatar
 
Dries committed
648

649
/**
650
 * Generate a set of options for selecting a term from all vocabularies.
651 652 653 654 655 656 657
 */
function taxonomy_form_all($free_tags = 0) {
  $vocabularies = taxonomy_get_vocabularies();
  $options = array();
  foreach ($vocabularies as $vid => $vocabulary) {
    if ($vocabulary->tags && !$free_tags) { continue; }
    $tree = taxonomy_get_tree($vid);
658 659
    if ($tree && (count($tree) > 1)) {
      $options[$vocabulary->name] = array();
660
      foreach ($tree as $term) {
661
        $options[$vocabulary->name][$term->tid] = str_repeat('-', $term->depth) . $term->name;
662 663 664 665 666 667
      }
    }
  }
  return $options;
}

Dries's avatar
 
Dries committed
668 669 670 671 672 673
/**
 * Return an array of all vocabulary objects.
 *
 * @param $type
 *   If set, return only those vocabularies associated with this node type.
 */
Dries's avatar
 
Dries committed
674
function taxonomy_get_vocabularies($type = NULL) {
Kjartan's avatar
Kjartan committed
675
  if ($type) {
676
    $result = db_query(db_rewrite_sql("SELECT v.vid, v.*, n.type FROM {vocabulary} v LEFT JOIN {vocabulary_node_types} n ON v.vid = n.vid WHERE n.type = '%s' ORDER BY v.weight, v.name", 'v', 'vid'), $type);
Kjartan's avatar
Kjartan committed
677 678
  }
  else {
679
    $result = db_query(db_rewrite_sql('SELECT v.*, n.type FROM {vocabulary} v LEFT JOIN {vocabulary_node_types} n ON v.vid = n.vid ORDER BY v.weight, v.name', 'v', 'vid'));
Kjartan's avatar
Kjartan committed
680
  }
Dries's avatar
 
Dries committed
681

Kjartan's avatar
Kjartan committed
682
  $vocabularies = array();
Dries's avatar
 
Dries committed
683
  $node_types = array();
Kjartan's avatar
Kjartan committed
684
  while ($voc = db_fetch_object($result)) {
Dries's avatar
 
Dries committed
685 686 687 688
    $node_types[$voc->vid][] = $voc->type;
    unset($voc->type);
    $voc->nodes = $node_types[$voc->vid];
    $vocabularies[$voc->vid] = $voc;
Dries's avatar
 
Dries committed
689
  }
Dries's avatar
 
Dries committed
690

Kjartan's avatar
Kjartan committed
691 692
  return $vocabularies;
}
Dries's avatar
 
Dries committed
693

Dries's avatar
 
Dries committed
694
/**
695
 * Implementation of hook_form_alter().
Dries's avatar
 
Dries committed
696 697
 * Generate a form for selecting terms to associate with a node.
 */
698
function taxonomy_form_alter(&$form, $form_id) {
699
  if (isset($form['type']) && isset($form['#node']) && $form['type']['#value'] .'_node_form' == $form_id) {
700 701
    $node = $form['#node'];

702
    if (!isset($node->taxonomy)) {
703
      $terms = empty($node->nid) ? array() : taxonomy_node_get_terms($node);
Kjartan's avatar
Kjartan committed
704 705
    }
    else {
706
      $terms = $node->taxonomy;
Dries's avatar
 
Dries committed
707 708
    }

709
    $c = db_query(db_rewrite_sql("SELECT v.* FROM {vocabulary} v INNER JOIN {vocabulary_node_types} n ON v.vid = n.vid WHERE n.type = '%s' ORDER BY v.weight, v.name", 'v', 'vid'), $node->type);
Dries's avatar
Dries committed
710

711 712
    while ($vocabulary = db_fetch_object($c)) {
      if ($vocabulary->tags) {
713
        $typed_string = taxonomy_implode_tags($terms, $vocabulary->vid) . (array_key_exists('tags', $terms) ? $terms['tags'][$vocabulary->vid] : NULL);
714

715 716 717 718
        if ($vocabulary->help) {
          $help = $vocabulary->help;
        }
        else {
719
          $help = t('A comma-separated list of terms describing this content. Example: funny, bungee jumping, "Company, Inc.".');
720
        }
721 722 723 724 725 726 727
        $form['taxonomy']['tags'][$vocabulary->vid] = array('#type' => 'textfield',
          '#title' => $vocabulary->name,
          '#description' => $help,
          '#required' => $vocabulary->required,
          '#default_value' => $typed_string,
          '#autocomplete_path' => 'taxonomy/autocomplete/'. $vocabulary->vid,
          '#weight' => $vocabulary->weight,
728
          '#maxlength' => 255,
729
        );
730 731
      }
      else {
732 733 734 735 736 737 738 739
        // Extract terms belonging to the vocabulary in question.
        $default_terms = array();
        foreach ($terms as $term) {
          if ($term->vid == $vocabulary->vid) {
            $default_terms[$term->tid] = $term;
          }
        }
        $form['taxonomy'][$vocabulary->vid] = taxonomy_form($vocabulary->vid, array_keys($default_terms), $vocabulary->help);
740
        $form['taxonomy'][$vocabulary->vid]['#weight'] = $vocabulary->weight;
741
        $form['taxonomy'][$vocabulary->vid]['#required'] = $vocabulary->required;
742
      }
Dries's avatar
Dries committed
743
    }
744
    if (!empty($form['taxonomy']) && is_array($form['taxonomy'])) {
745 746 747 748 749 750 751 752
      if (count($form['taxonomy']) > 1) { // Add fieldset only if form has more than 1 element.
        $form['taxonomy'] += array(
          '#type' => 'fieldset',
          '#title' => t('Categories'),
          '#collapsible' => TRUE,
          '#collapsed' => FALSE,
        );
      }
753 754
      $form['taxonomy']['#weight'] = -3;
      $form['taxonomy']['#tree'] = TRUE;
Dries's avatar
Dries committed
755
    }
Dries's avatar
 
Dries committed
756
  }
Kjartan's avatar
Kjartan committed
757
}
Dries's avatar
 
Dries committed
758

Dries's avatar
 
Dries committed
759
/**
760
 * Find all terms associated with the given node, within one vocabulary.
Dries's avatar
 
Dries committed
761
 */
762 763
function taxonomy_node_get_terms_by_vocabulary($node, $vid, $key = 'tid') {
  $result = db_query(db_rewrite_sql('SELECT t.tid, t.* FROM {term_data} t INNER JOIN {term_node} r ON r.tid = t.tid WHERE t.vid = %d AND r.vid = %d ORDER BY weight', 't', 'tid'), $vid, $node->vid);
Kjartan's avatar
Kjartan committed
764 765 766
  $terms = array();
  while ($term = db_fetch_object($result)) {
    $terms[$term->$key] = $term;
Dries's avatar
 
Dries committed
767
  }
Kjartan's avatar
Kjartan committed
768 769 770
  return $terms;
}

Dries's avatar
 
Dries committed
771
/**
772
 * Find all terms associated with the given node, ordered by vocabulary and term weight.
Dries's avatar
 
Dries committed
773
 */
774
function taxonomy_node_get_terms($node, $key = 'tid') {
Kjartan's avatar
Kjartan committed
775
  static $terms;
Dries's avatar
 
Dries committed
776

777 778 779
  if (!isset($terms[$node->vid])) {
    $result = db_query(db_rewrite_sql('SELECT t.* FROM {term_node} r INNER JOIN {term_data} t ON r.tid = t.tid INNER JOIN {vocabulary} v ON t.vid = v.vid WHERE r.vid =