node.module 46.3 KB
Newer Older
Dries's avatar
 
Dries committed
1
<?php
2
// $Id$
Dries's avatar
 
Dries committed
3

Dries's avatar
 
Dries committed
4
function node_help($section = "admin/help#node") {
Dries's avatar
 
Dries committed
5
  global $mod;
6 7 8 9
  $output = "";

  switch ($section) {

Dries's avatar
 
Dries committed
10
    case 'admin/help#node':
11 12 13 14
      $output .= "<h3>Nodes</h3>";
      $output .= "<p>The core of the Drupal system is the node. All of the contents of the system are placed in nodes, or extensions of nodes.";
      $output .= "A base node contains:<dl>";
      $output .= "<dt>A Title</dt><dd>Up to 128 characters of text that titles the node.</dd>";
Dries's avatar
 
Dries committed
15
      $output .= "<dt>A Teaser</dt><dd>A small block of text that is meant to get you interested in the rest of node. Drupal will automatically pull a small amount of the body of the node to make the teaser (To configure how long the teaser will be %teaser). The teaser can be changed if you don't like what Drupal grabs.</dd>";
16 17 18 19 20
      $output .= "<dt>The Body</dt><dd>The main text that comprises your content.</dd>";
      $output .= "<dt>A Type</dt><dd>What kind of node is this? Blog, book, forum, comment, unextended, etc.</dd>";
      $output .= "<dt>An Author</dt><dd>The author's name. It will either be \"anonymous\" or a valid user. You <i>cannot</i> set it to an arbitrary value.</dd>";
      $output .= "<dt>Authored on</dt><dd>The date the node was written.</dd>";
      $output .= "<dt>Changed</dt><dd>The last time this node was changed.</dd>";
Dries's avatar
 
Dries committed
21
      $output .= "<dt>Static on front page</dt><dd>The front page is configured to show the teasers from only a few of the total nodes you have on your site (To configure how many teasers %teaser), but if you think a node is important enough that you want it to stay on the front page enable this.</dd>";
22 23
      $output .= "<dt>Allow user comments</dt><dd>A node can have comments. These comments can be written by other users (Read-write), or only by admins (Read-only).</dd>";
      $output .= "<dt>Attributes</dt><dd>A way to sort nodes.</dd>";
Dries's avatar
 
Dries committed
24
      $output .= "<dt>Revisions</dt><dd>Drupal has a revision system so that you can \"roll back\" to an older version of a post if the new version is not what you want.</dd>";
25 26
      $output .= "<dt>Promote to front page</dt><dd>To get people to look at the new stuff on your site you can choose to move it to the front page.</dd>";
      $output .= "<dt>In moderation queue</dt><dd>Drupal has a moderation system. If it is active, a node is in one of three states: approved and published, approved and unpublished, and awaiting approval. If you are moderating a node it should be in the moderation queue.</dd>";
Dries's avatar
 
Dries committed
27
      $output .= "<dt>Votes</dt><dd>If you are moderating a node this counts how many votes the node has gotten. Once a node gets a certain number of vote if will either be approved or dropped.";
28 29 30 31 32
      $output .= "<dt>Score</dt><dd>The score of the node is gotten by the votes it is given.</dd>";
      $output .= "<dt>Users</dt><dd>The list of users who have voted on a moderated node.</dd>";
      $output .= "<dt>Published</dt><dd>When using Drupal's moderation system a node remains unpublished -- unavaliable to non-moderators -- until it is marked Published.</dd></dl>";
      $output .= "<p>Now that you know what is in a node, here are some of the types of nodes available.</p>";

Dries's avatar
 
Dries committed
33
      $output = t($output, array("%teaser" => l(t("click here"), "admin/system/modules/node")));
Dries's avatar
 
Dries committed
34

35 36 37
      if ($mod == "admin") {
        foreach (module_list() as $name) {
          if (module_hook($name, "node") && $name != "node") {
Dries's avatar
 
Dries committed
38
            $output .= "<h3>". t("Node type: %module", array("%module" => module_invoke($name, "node", "name"))) ."</h3>";
39 40 41
            $output .= module_invoke($name, "node", "description");
          }
        }
Dries's avatar
 
Dries committed
42
      }
43 44
      break;

Dries's avatar
 
Dries committed
45
    case 'admin/system/modules#description':
Dries's avatar
 
Dries committed
46
      $output = t("The core that allows content to be submitted to the site.");
47 48
      break;
    case 'admin/system/modules/node':
Dries's avatar
 
Dries committed
49
      $output = t("Settings for the core of Drupal. Almost everything is a node so these settings will affect most of the site.");
50 51
      break;
    case 'admin/node':
Dries's avatar
 
Dries committed
52
      $output = t("Below is a list of all of the nodes in your site. Other forms of content are listed elsewhere (e.g. %comments).<br />Clicking a title views that node, while clicking an author's name edits their user information.<br />Other node-related tasks are available from the menu on the left.", array("%comments" => l(t("comments"), "admin/comment")));
53 54
      break;
    case 'admin/node/search':
Dries's avatar
 
Dries committed
55
      $output = t("Enter a simple pattern to search for a post. This can include the wildcard character *.<br />For example, a search for \"br*\" might return \"bread bakers\", \"our daily bread\" and \"brenda\".");
56 57
      break;
    case 'admin/node/settings':
58
      $output = t("This page lets you set the defaults used during creation of nodes for all the different node types.<br /><strong>comment:</strong> Read/write setting for comments.<br /><strong>publish:</strong> Is this node publicly viewable, has it been published?<br /><strong>promote:</strong> Is this node to be promoted to the front page?<br /><strong>moderate:</strong> Does this node need approval before it can be viewed?<br /><strong>static:</strong> Is this node always visible on the front page?<br /><strong>revision:</strong> Will this node go into the revision system allowing multiple versions to be saved?");
59 60
      break;

Dries's avatar
 
Dries committed
61
  }
Dries's avatar
 
Dries committed
62 63

  return $output;
Dries's avatar
 
Dries committed
64 65
}

Dries's avatar
 
Dries committed
66
function node_help_page() {
Dries's avatar
 
Dries committed
67
  print theme("page", node_help());
Dries's avatar
 
Dries committed
68 69 70
}


Dries's avatar
 
Dries committed
71 72 73 74
/*
** Accepts a DB result object which can be used to fetch node objects.
** Returns an HTML list suitable as content for a block.
*/
Dries's avatar
 
Dries committed
75 76
function node_title_list($result, $title = NULL) {
  while ($node = db_fetch_object($result)) {
Dries's avatar
 
Dries committed
77
    $number = module_invoke("comment", "num_all", $node->nid);
Dries's avatar
 
Dries committed
78
    $items[] = l($node->title, "node/view/$node->nid", array("title" => format_plural($number, "%count comment", "%count comments")));
Dries's avatar
 
Dries committed
79 80
  }

Dries's avatar
 
Dries committed
81
  return theme("node_list", $items, $title);
Dries's avatar
 
Dries committed
82 83
}

Dries's avatar
 
Dries committed
84
function theme_node_list($items, $title = NULL) {
Dries's avatar
 
Dries committed
85
  return theme("item_list", $items, $title);
Dries's avatar
 
Dries committed
86 87
}

Dries's avatar
 
Dries committed
88 89 90 91 92
// Update the 'last viewed' timestamp of the specified node for current user.
function node_tag_new($nid) {
  global $user;

  if ($user->uid) {
Dries's avatar
 
Dries committed
93
    $result = db_query("SELECT timestamp FROM {history} WHERE uid = %d AND nid = %d", $user->uid, $nid);
Dries's avatar
 
Dries committed
94
    if (db_fetch_object($result)) {
Dries's avatar
 
Dries committed
95
      db_query("UPDATE {history} SET timestamp = %d WHERE uid = %d AND nid = %d", time(), $user->uid, $nid);
Dries's avatar
 
Dries committed
96 97
    }
    else {
Dries's avatar
 
Dries committed
98
      db_query("INSERT INTO {history} (uid, nid, timestamp) VALUES (%d, %d, %d)", $user->uid, $nid, time());
Dries's avatar
 
Dries committed
99 100 101 102 103 104 105 106 107 108 109
    }
  }
}

/*
** Retrieves the timestamp at which the current user last viewed the
** specified node.
*/
function node_last_viewed($nid) {
  global $user;

Dries's avatar
 
Dries committed
110
  $history = db_fetch_object(db_query("SELECT timestamp FROM {history} WHERE uid = '$user->uid' AND nid = %d", $nid));
Dries's avatar
 
Dries committed
111 112 113 114
  return ($history->timestamp ? $history->timestamp : 0);
}

/**
Dries's avatar
 
Dries committed
115 116
 * Determines whether the supplied timestamp is newer than the user's last view
 * of a given node
Dries's avatar
 
Dries committed
117
 *
Dries's avatar
 
Dries committed
118 119 120 121
 * @param $nid node-id twhose history supplies the 'last viewed' timestamp
 * @param $timestamp time which is compared against node's 'last veiwed'
 *   timestamp
 */
Dries's avatar
 
Dries committed
122 123 124 125
function node_is_new($nid, $timestamp) {
  global $user;
  static $cache;

Dries's avatar
Dries committed
126
  if (!isset($cache[$nid])) {
Dries's avatar
 
Dries committed
127
    if ($user->uid) {
Dries's avatar
 
Dries committed
128
      $history = db_fetch_object(db_query("SELECT timestamp FROM {history} WHERE uid = %d AND nid = %d", $user->uid, $nid));
Dries's avatar
 
Dries committed
129 130 131 132 133 134 135 136 137 138 139 140 141 142 143
      $cache[$nid] = $history->timestamp ? $history->timestamp : 0;
    }
    else {
      $cache[$nid] = time();
    }
  }

  if ($timestamp > $cache[$nid]) {
    return 1;
  }
  else {
    return 0;
  }
}

Dries's avatar
 
Dries committed
144 145
function node_teaser($body) {

Dries's avatar
 
Dries committed
146 147 148 149 150 151 152 153 154 155
  $size = variable_get("teaser_length", 600);

  /*
  ** If the size is zero, teasers are disabled so we
  ** return the entire body.
  */

  if ($size == 0) {
    return $body;
  }
Dries's avatar
 
Dries committed
156 157

  /*
Dries's avatar
 
Dries committed
158
  ** If a valid delimiter has been specified, use it to
Dries's avatar
 
Dries committed
159 160
  ** chop of the teaser.  The delimiter can be outside
  ** the allowed range but no more than a factor two.
Dries's avatar
 
Dries committed
161 162
  */

Dries's avatar
Dries committed
163
  $delimiter = strpos($body, "<!--break-->");
Dries's avatar
 
Dries committed
164
  if ($delimiter > 0) {
Dries's avatar
 
Dries committed
165 166 167
    return substr($body, 0, $delimiter);
  }

Dries's avatar
 
Dries committed
168 169 170 171 172 173 174 175
  /*
  ** If we have a short body, return the entire body:
  */

  if (strlen($body) < $size) {
    return $body;
  }

Dries's avatar
 
Dries committed
176 177 178 179
  /*
  ** In some cases no delimiter has been specified (eg.
  ** when posting using the Blogger API) in which case
  ** we try to split at paragraph boundaries.
Dries's avatar
 
Dries committed
180 181
  */

Dries's avatar
 
Dries committed
182 183
  if ($length = strpos($body, "</p>", $size)) {
    return substr($body, 0, $length + 4);
Dries's avatar
 
Dries committed
184 185
  }

Dries's avatar
 
Dries committed
186
  if ($length = strpos($body, "<br />", $size)) {
Dries's avatar
 
Dries committed
187
    return substr($body, 0, $length);
Dries's avatar
 
Dries committed
188 189
  }

Dries's avatar
 
Dries committed
190
  if ($length = strpos($body, "<br>", $size)) {
Dries's avatar
 
Dries committed
191 192 193 194 195
    return substr($body, 0, $length);
  }

  if ($length = strpos($body, "\n", $size)) {
    return substr($body, 0, $length);
Dries's avatar
 
Dries committed
196 197
  }

Dries's avatar
 
Dries committed
198
  /*
Dries's avatar
 
Dries committed
199
  ** When even the first paragraph is too long, try to
Dries's avatar
 
Dries committed
200
  ** split at the end of the next sentence.
Dries's avatar
 
Dries committed
201 202
  */

Dries's avatar
 
Dries committed
203 204 205 206 207 208 209 210 211 212 213 214 215 216 217
  if ($length = strpos($body, ". ", $size)) {
    return substr($body, 0, $length + 1);
  }

  if ($length = strpos($body, "! ", $size)) {
    return substr($body, 0, $length + 1);
  }

  if ($length = strpos($body, "? ", $size)) {
    return substr($body, 0, $length + 1);
  }

  /*
  ** Nevermind, we split it the hard way ...
  */
Dries's avatar
 
Dries committed
218

Dries's avatar
 
Dries committed
219
  return substr($body, 0, $size);
Dries's avatar
 
Dries committed
220 221
}

Dries's avatar
 
Dries committed
222
function node_invoke(&$node, $hook, $a2 = NULL, $a3 = NULL, $a4 = NULL) {
Dries's avatar
 
Dries committed
223
  if (is_array($node)) {
224
    $function = $node["type"] ."_$hook";
Dries's avatar
 
Dries committed
225 226
  }
  else if (is_object($node)) {
227
    $function = $node->type ."_$hook";
Dries's avatar
 
Dries committed
228 229
  }
  else if (is_string($node)) {
230
    $function = $node ."_$hook";
Dries's avatar
 
Dries committed
231 232 233
  }

  if (function_exists($function)) {
Dries's avatar
 
Dries committed
234
    return ($function($node, $a2, $a3, $a4));
Dries's avatar
 
Dries committed
235 236 237
  }
}

Dries's avatar
 
Dries committed
238 239 240 241 242 243 244 245 246 247 248 249 250 251
function node_invoke_nodeapi(&$node, $op, $arg = 0) {
  $return = array();
  foreach (module_list() as $name) {
    $function = $name ."_nodeapi";
    if (function_exists($function)) {
      $result = $function($node, $op, $arg);
      if (isset($result)) {
        $return = array_merge($return, $result);
      }
    }
  }
  return $return;
}

Dries's avatar
 
Dries committed
252
function node_load($conditions, $revision = -1) {
Dries's avatar
 
Dries committed
253 254 255 256 257 258 259 260 261 262 263 264 265

  /*
  ** Turn the conditions into a query:
  */

  foreach ($conditions as $key => $value) {
    $cond[] = "n.". check_query($key) ." = '". check_query($value) ."'";
  }

  /*
  ** Retrieve the node:
  */

Dries's avatar
 
Dries committed
266
  $node = db_fetch_object(db_query("SELECT n.*, u.uid, u.name FROM {node} n INNER JOIN {users} u ON u.uid = n.uid WHERE ". implode(" AND ", $cond)));
Dries's avatar
 
Dries committed
267 268 269 270 271 272 273 274 275 276 277 278 279 280

  /*
  ** Unserialize the revisions field:
  */

  if ($node->revisions) {
    $node->revisions = unserialize($node->revisions);
  }

  /*
  ** Call the node specific callback (if any) and piggy-back the
  ** results to the node or overwrite some values:
  */

Dries's avatar
 
Dries committed
281
  if ($extra = node_invoke($node, "load")) {
Dries's avatar
 
Dries committed
282 283 284 285 286
    foreach ($extra as $key => $value) {
      $node->$key = $value;
    }
  }

Dries's avatar
 
Dries committed
287 288 289 290 291 292 293
  /*
  ** Return the desired revision
  */
  if ($revision != -1 && isset($node->revisions[$revision])) {
    $node = $node->revisions[$revision]["node"];
  }

Dries's avatar
 
Dries committed
294 295 296
  return $node;
}

297
function node_save($node) {
Dries's avatar
 
Dries committed
298

299 300 301
  /*
  ** Fetch fields to save to node table:
  */
Dries's avatar
 
Dries committed
302
  $fields = node_invoke_nodeapi($node, "fields");
Dries's avatar
 
Dries committed
303 304 305 306 307 308 309 310 311 312 313 314 315 316 317 318 319 320 321

  /*
  ** Serialize the revisions field:
  */

  if ($node->revisions) {
    $node->revisions = serialize($node->revisions);
  }

  /*
  ** Apply filters to some default node fields:
  */

  if (empty($node->nid)) {

    /*
    ** Insert a new node:
    */

Dries's avatar
 
Dries committed
322
    // Set some required fields:
323 324 325
    if (!$node->created) {
      $node->created = time();
    }
Dries's avatar
 
Dries committed
326
    $node->changed = time();
Dries's avatar
 
Dries committed
327
    $node->nid = db_next_id("{node}_nid");
Dries's avatar
 
Dries committed
328

Dries's avatar
 
Dries committed
329
    // Prepare the query:
Dries's avatar
 
Dries committed
330 331 332
    foreach ($node as $key => $value) {
      if (in_array($key, $fields)) {
        $k[] = check_query($key);
Dries's avatar
 
Dries committed
333 334
        $v[] = $value;
        $s[] = "'%s'";
Dries's avatar
 
Dries committed
335 336 337
      }
    }

Dries's avatar
 
Dries committed
338 339 340 341
    $keysfmt = implode(", ", $s);
    // need to quote the placeholders for the values
    $valsfmt = "'". implode("', '", $s) ."'";

Dries's avatar
 
Dries committed
342
    // Insert the node into the database:
Dries's avatar
 
Dries committed
343
    db_query("INSERT INTO {node} (". implode(", ", $k) .") VALUES(". implode(", ", $s) .")", $v);
Dries's avatar
 
Dries committed
344

Dries's avatar
 
Dries committed
345
    // Call the node specific callback (if any):
346
    node_invoke($node, "insert");
Dries's avatar
 
Dries committed
347
    node_invoke_nodeapi($node, "insert");
Dries's avatar
 
Dries committed
348 349 350 351 352 353 354
  }
  else {

    /*
    ** Update an existing node:
    */

Dries's avatar
 
Dries committed
355
    // Set some required fields:
Dries's avatar
 
Dries committed
356 357
    $node->changed = time();

Dries's avatar
 
Dries committed
358
    // Prepare the query:
Dries's avatar
 
Dries committed
359 360
    foreach ($node as $key => $value) {
      if (in_array($key, $fields)) {
Dries's avatar
 
Dries committed
361 362
        $q[] = check_query($key) ." = '%s'";
        $v[] = $value;
Dries's avatar
 
Dries committed
363 364 365
      }
    }

Dries's avatar
 
Dries committed
366
    // Update the node in the database:
Dries's avatar
 
Dries committed
367
    db_query("UPDATE {node} SET ". implode(", ", $q) ." WHERE nid = '$node->nid'", $v);
Dries's avatar
 
Dries committed
368

Dries's avatar
 
Dries committed
369
    // Call the node specific callback (if any):
370
    node_invoke($node, "update");
Dries's avatar
 
Dries committed
371
    node_invoke_nodeapi($node, "update");
Dries's avatar
 
Dries committed
372 373
  }

Dries's avatar
 
Dries committed
374
  /*
Dries's avatar
 
Dries committed
375 376
  ** Clear the cache so an anonymous poster can see the node being
  ** added or updated.
Dries's avatar
 
Dries committed
377 378 379 380
  */

  cache_clear_all();

Dries's avatar
 
Dries committed
381 382 383 384 385 386 387 388
  /*
  ** Return the node ID:
  */

  return $node->nid;

}

Dries's avatar
 
Dries committed
389
function node_view($node, $main = 0, $page = 0) {
Dries's avatar
 
Dries committed
390

Dries's avatar
 
Dries committed
391
  $node = array2object($node);
Dries's avatar
 
Dries committed
392

Dries's avatar
 
Dries committed
393 394
  /*
  ** Remove the delimiter (if any) that seperates the teaser from the
Dries's avatar
Dries committed
395
  ** body. TODO: this strips legitimate uses of '<!--break-->' also.
Dries's avatar
 
Dries committed
396 397
  */

Dries's avatar
Dries committed
398
  $node->body = str_replace("<!--break-->", "", $node->body);
Dries's avatar
 
Dries committed
399

Dries's avatar
 
Dries committed
400 401 402 403 404 405
  /*
  ** The "view" hook can be implemented to overwrite the default function
  ** to display nodes.
  */

  if (module_hook($node->type, "view")) {
Dries's avatar
 
Dries committed
406
    return node_invoke($node, "view", $main, $page);
Dries's avatar
 
Dries committed
407 408 409 410 411 412 413
  }
  else {

    /*
    ** Default behavior:
    */

Dries's avatar
 
Dries committed
414 415 416
    return theme("node", node_prepare($node), $main, $page);
  }
}
Dries's avatar
 
Dries committed
417

Dries's avatar
 
Dries committed
418 419 420 421 422 423 424 425
function node_prepare($node) {
  if ($node->teaser == $node->body) {
    // Only invoke check_output() once for performance's sake:
    $node->teaser = $node->body = check_output($node->teaser);
  }
  else {
    $node->teaser = check_output($node->teaser);
    $node->body = check_output($node->body);
Dries's avatar
 
Dries committed
426
  }
Dries's avatar
 
Dries committed
427
  return $node;
Dries's avatar
 
Dries committed
428 429
}

Dries's avatar
 
Dries committed
430 431
function node_show($node, $cid) {

Dries's avatar
 
Dries committed
432 433
  if (node_access("view", $node)) {

Dries's avatar
 
Dries committed
434
    $output = node_view($node, 0, 1);
Dries's avatar
 
Dries committed
435 436

    if (function_exists("comment_render") && $node->comment) {
Dries's avatar
 
Dries committed
437
      $output .= comment_render($node, $cid);
Dries's avatar
 
Dries committed
438
    }
Dries's avatar
 
Dries committed
439 440 441 442 443 444

    /*
    ** Update the history table, stating that this user viewed this node.
    */

    node_tag_new($node->nid);
Dries's avatar
 
Dries committed
445 446

    return $output;
Dries's avatar
 
Dries committed
447
  }
Dries's avatar
 
Dries committed
448 449 450
  else {
    drupal_set_message(message_access());
  }
Dries's avatar
 
Dries committed
451 452
}

Dries's avatar
 
Dries committed
453 454
function node_access($op, $node = 0) {

Dries's avatar
 
Dries committed
455 456
  if (user_access("administer nodes")) {
    return 1;
Dries's avatar
 
Dries committed
457 458
  }

Dries's avatar
 
Dries committed
459 460 461
  /*
  ** Convert the node to an object if necessary:
  */
Dries's avatar
 
Dries committed
462

Dries's avatar
 
Dries committed
463
  $node = array2object($node);
Dries's avatar
 
Dries committed
464

Dries's avatar
 
Dries committed
465 466 467
  /*
  ** Construct a function:
  */
Dries's avatar
 
Dries committed
468

Dries's avatar
 
Dries committed
469 470 471 472 473 474
  if ($node->type) {
    $type = $node->type;
  }
  else {
    $type = $node;
  }
Dries's avatar
 
Dries committed
475

Dries's avatar
 
Dries committed
476 477
  // Can't use node_invoke:
  // the access hook takes the $op parameter before the $node parameter.
Dries's avatar
 
Dries committed
478
  return module_invoke($type, "access", $op, $node);
Dries's avatar
 
Dries committed
479 480
}

Dries's avatar
 
Dries committed
481
function node_perm() {
Dries's avatar
 
Dries committed
482
  return array("administer nodes", "access content");
Dries's avatar
 
Dries committed
483 484
}

Dries's avatar
 
Dries committed
485 486
function node_search($keys) {

Kjartan's avatar
Kjartan committed
487 488 489 490 491 492 493 494 495 496 497 498
  // Return the results of performing a search using the indexed search
  // for this particular type of node.
  //
  // Pass an array to the "do_search" function which dictates what it
  // will search through, and what it will search for
  //
  // "keys"'s value is the keywords entered by the user
  //
  // "type"'s value is used to identify the node type in the search
  // index.
  //
  // "select"'s value is used to relate the data from the specific nodes
Dries's avatar
 
Dries committed
499
  // table to the data that the search_index table has in it, and the the
Kjartan's avatar
Kjartan committed
500 501
  // do_search functino will rank it.
  //
Dries's avatar
 
Dries committed
502
  // The select must always provide the following fields - lno, title,
Kjartan's avatar
Kjartan committed
503 504
  // created, uid, name, count
  //
Dries's avatar
 
Dries committed
505
  $find = do_search(array("keys" => $keys, "type" => "node", "select" => "select s.lno as lno, n.title as title, n.created as created, u.uid as uid, u.name as name, s.count as count FROM {search_index} s, {node} n INNER JOIN {users} u ON n.uid = u.uid WHERE s.lno = n.nid AND s.type = 'node' AND s.word like '%' AND n.status = 1"));
Dries's avatar
 
Dries committed
506

Dries's avatar
 
Dries committed
507 508 509
  return $find;
}

510
function node_settings() {
Dries's avatar
 
Dries committed
511
  $output .= form_select(t("Number of posts on main page"), "default_nodes_main", variable_get("default_nodes_main", 10), array(1 => 1, 2 => 2, 3 => 3, 4 => 4, 5 =>  5, 6 => 6, 7 => 7, 8 => 8, 9 => 9, 10 => 10, 15 => 15, 20 => 20, 25 => 25, 30 => 30), t("The default maximum number of posts to display per page on overview pages such as the main page."));
Dries's avatar
 
Dries committed
512
  $output .= form_select(t("Length of trimmed posts"), "teaser_length", variable_get("teaser_length", 600), array(0 => t("Unlimited"), 200 => t("200 characters"), 400 => t("400 characters"), 600 => t("600 characters"), 800 => t("800 characters"), 1000 => t("1000 characters"), 1200 => t("1200 characters"), 1400 => t("1400 characters"), 1600 => t("1600 characters"), 1800 => t("1800 characters"), 2000 => t("2000 characters")), t("The maximum number of characters used in the trimmed version of a post.  Drupal will use this setting to determine at which offset long posts should be trimmed.  The trimmed version of a post is typically used as a teaser when displaying the post on the main page, in XML feeds, etc.  To disable teasers, set to 'Unlimited'."));
Dries's avatar
 
Dries committed
513
  $output .= form_radios(t("Preview post"), "node_preview", variable_get("node_preview", 0), array(t("Optional"), t("Required")), t("Must users preview posts before submitting?"));
Dries's avatar
 
Dries committed
514

Dries's avatar
 
Dries committed
515 516 517
  return $output;
}

Dries's avatar
 
Dries committed
518
function node_comment_mode($nid) {
Dries's avatar
 
Dries committed
519 520
  static $comment_mode;
  if (!isset($comment_mode[$nid])) {
Dries's avatar
 
Dries committed
521
    $comment_mode[$nid] = db_result(db_query("SELECT comment FROM {node} WHERE nid = %d", $nid));
Dries's avatar
 
Dries committed
522 523
  }
  return $comment_mode[$nid];
Dries's avatar
 
Dries committed
524 525
}

526
function node_link($type, $node = 0, $main = 0) {
Dries's avatar
 
Dries committed
527

Dries's avatar
 
Dries committed
528 529
  $links = array();

Dries's avatar
 
Dries committed
530
  if ($type == "node") {
Kjartan's avatar
Kjartan committed
531 532 533
    if ($node->links) {
      $links = $node->links;
    }
Dries's avatar
 
Dries committed
534

Dries's avatar
 
Dries committed
535
    if ($main == 1 && $node->teaser && strlen($node->teaser) != strlen($node->body)) {
Dries's avatar
 
Dries committed
536
      $links[] = l(t("read more"), "node/view/$node->nid", array("title" => t("Read the rest of this posting."), "class" => "read-more"));
Dries's avatar
 
Dries committed
537
    }
Dries's avatar
 
Dries committed
538 539

    if (user_access("administer nodes")) {
Dries's avatar
 
Dries committed
540 541 542 543 544
      $links[] = l(t("administer"), "admin/node/edit/$node->nid", array("title" => t("Administer this node.")));
    }

    if (user_access("administer nodes") && $node->revisions) {
      $links[] = l(t("revisions"), "node/revisions/$node->nid", array("title" => t("Administer revisions.")));
Dries's avatar
 
Dries committed
545
    }
Dries's avatar
 
Dries committed
546 547
  }

Dries's avatar
 
Dries committed
548
  if ($type == "system") {
Dries's avatar
 
Dries committed
549
    menu("node/add", t("create content"), 'node_page', 1, MENU_HIDE_NOCHILD);
Dries's avatar
 
Dries committed
550

Dries's avatar
 
Dries committed
551
    if (user_access("administer nodes")) {
Dries's avatar
 
Dries committed
552 553
      menu("admin/node", t("content"), "node_admin");
      menu("admin/node/search", t("search"), "node_admin", 8);
Dries's avatar
 
Dries committed
554
      menu("admin/node/help", t("help"), "node_help_page", 9);
Dries's avatar
 
Dries committed
555
      menu("admin/node/edit", t("edit post"), "node_admin", 0, MENU_HIDE);
Dries's avatar
 
Dries committed
556
      menu("admin/node/settings", t("settings"), "node_admin", 8);
Dries's avatar
 
Dries committed
557
    }
Dries's avatar
 
Dries committed
558 559

    if (user_access("access content")) {
Dries's avatar
 
Dries committed
560
      menu("node", t("content"), "node_page", 0, MENU_HIDE);
Dries's avatar
 
Dries committed
561
    }
Dries's avatar
 
Dries committed
562 563
  }

Dries's avatar
 
Dries committed
564
  return $links;
Dries's avatar
 
Dries committed
565 566
}

Dries's avatar
 
Dries committed
567
function node_admin_edit($node) {
Dries's avatar
 
Dries committed
568

Dries's avatar
 
Dries committed
569
  if (is_numeric($node)) {
Dries's avatar
 
Dries committed
570
    $node = node_load(array("nid" => $node));
Dries's avatar
 
Dries committed
571
  }
Dries's avatar
 
Dries committed
572

Dries's avatar
 
Dries committed
573
  $output .= node_form($node);
Dries's avatar
 
Dries committed
574

Dries's avatar
 
Dries committed
575
  /*
Dries's avatar
 
Dries committed
576
  ** Display the node form extensions:
Dries's avatar
 
Dries committed
577
  */
Dries's avatar
 
Dries committed
578
  $output .= implode("\n", module_invoke_all("node_link", $node));
Dries's avatar
Dries committed
579

Dries's avatar
 
Dries committed
580
  return $output;
Dries's avatar
 
Dries committed
581 582 583

}

Dries's avatar
 
Dries committed
584
function node_admin_nodes() {
Dries's avatar
 
Dries committed
585 586 587 588 589 590 591 592 593 594
  $filters = array(
    array(t("View posts that are new or updated"), "ORDER BY n.changed DESC"),
    array(t("View posts that need approval"), "WHERE n.status = 0 OR n.moderate = 1 ORDER BY n.changed DESC"),
    array(t("View posts that are promoted"), "WHERE n.status = 1 AND n.promote = 1 ORDER BY n.changed DESC"),
    array(t("View posts that are not promoted"), "WHERE n.status = 1 AND n.promote = 0 ORDER BY n.changed DESC"),
    array(t("View posts that are static"), "WHERE n.status = 1 AND n.static = 1 ORDER BY n.changed DESC"),
    array(t("View posts that are unpublished"), "WHERE n.status = 0 AND n.moderate = 0 ORDER BY n.changed DESC")
   );

  $operations = array(
Dries's avatar
 
Dries committed
595
    array(t("Approve the selected posts"), "UPDATE {node} SET status = 1, moderate = 0 WHERE nid = %d"),
Dries's avatar
 
Dries committed
596 597 598
    array(t("Promote the selected posts"), "UPDATE {node} SET status = 1, promote = 1 WHERE nid = %d"),
    array(t("Make the selected posts static"), "UPDATE {node} SET status = 1, static = 1 WHERE nid = %d"),
    array(t("Demote the selected posts"), "UPDATE {node} SET promote = 0 WHERE nid = %d"),
Dries's avatar
 
Dries committed
599
    array(t("Unpublish the selected posts"), "UPDATE {node} SET status = 0 WHERE nid = %d")
Dries's avatar
 
Dries committed
600
  );
Dries's avatar
 
Dries committed
601

Dries's avatar
 
Dries committed
602 603 604 605
  /*
  ** Handle operations:
  */

Dries's avatar
 
Dries committed
606 607
  if (empty($_SESSION["node_overview_filter"])) {
    $_SESSION["node_overview_filter"] = 0;
Dries's avatar
 
Dries committed
608 609
  }

Dries's avatar
 
Dries committed
610
  if (isset($_POST["edit"]["filter"])) {
Dries's avatar
 
Dries committed
611
    $_SESSION["node_overview_filter"] = $_POST["edit"]["filter"];
Dries's avatar
 
Dries committed
612 613
  }

Dries's avatar
 
Dries committed
614
  if (isset($_POST["edit"]["operation"])) {
Dries's avatar
 
Dries committed
615 616 617
    $operation = $operations[$_POST["edit"]["operation"]][1];
    foreach ($_POST["edit"]["status"] as $nid => $value) {
      if ($value) {
Dries's avatar
Dries committed
618
        db_query($operation, $nid);
Dries's avatar
 
Dries committed
619 620 621
      }
    }

Dries's avatar
 
Dries committed
622
    drupal_set_message(t("the update has been performed."));
Dries's avatar
 
Dries committed
623 624
  }

Dries's avatar
 
Dries committed
625
  $filter = $_SESSION["node_overview_filter"];
Dries's avatar
Dries committed
626

Dries's avatar
 
Dries committed
627 628 629 630 631 632 633 634
  /*
  ** Render filter form:
  */

  $options = array();
  foreach ($filters as $key => $value) {
    $options[] = $value[0];
  }
Dries's avatar
 
Dries committed
635

Dries's avatar
 
Dries committed
636 637 638 639 640 641 642 643 644 645 646 647 648 649 650 651 652 653 654 655 656 657 658 659 660
  $form  = form_select(NULL, "filter", $filter, $options);
  $form .= form_submit(t("Go"));

  $output .= "<h3>". t("Filter options") ."</h3>";
  $output .= "<div class=\"container-inline\">$form</div>";

  /*
  ** Render operations form:
  */

  $options = array();
  foreach ($operations as $key => $value) {
    $options[] = $value[0];
  }

  $form = form_select(NULL, "operation", 0, $options);
  $form .= form_submit(t("Go"));

  $output .= "<h3>". t("Update options") ."</h3>";
  $output .= "<div class=\"container-inline\">$form</div>";

  /*
  ** Overview table:
  */

Dries's avatar
 
Dries committed
661
  $result = pager_query("SELECT n.*, u.name, u.uid FROM {node} n INNER JOIN {users} u ON n.uid = u.uid ". $filters[$filter][1], 50);
Dries's avatar
 
Dries committed
662
  $header = array(NULL, t("title"), t("type"), t("author"), t("status"), array("data" => t("operations"), "colspan" => 2));
Dries's avatar
 
Dries committed
663

Dries's avatar
 
Dries committed
664
  while ($node = db_fetch_object($result)) {
Dries's avatar
 
Dries committed
665
    $rows[] = array(form_checkbox(NULL, "status][$node->nid", 1, 0), l($node->title, "node/view/$node->nid") ." ". (node_is_new($node->nid, $node->changed) ? theme_mark() : ""), module_invoke($node->type, "node", "name"), format_name($node), ($node->status ? t("published") : t("not published")), l(t("edit node"), "admin/node/edit/$node->nid"), l(t("delete node"), "admin/node/delete/$node->nid"));
Dries's avatar
 
Dries committed
666
  }
Dries's avatar
 
Dries committed
667

Dries's avatar
Dries committed
668
  if ($pager = theme("pager", NULL, 50, 0)) {
669
    $rows[] = array(array("data" => $pager, "colspan" => 7));
Dries's avatar
 
Dries committed
670
  }
Dries's avatar
 
Dries committed
671

Dries's avatar
 
Dries committed
672
  $output .= "<h3>". $filters[$filter][0] ."</h3>";
Dries's avatar
 
Dries committed
673
  $output .= theme("table", $header, $rows);
Dries's avatar
 
Dries committed
674
  return form($output);
Dries's avatar
Dries committed
675 676
}

677
function node_admin_settings($edit) {
Dries's avatar
 
Dries committed
678
  $op = $_POST["op"];
Kjartan's avatar
Kjartan committed
679

680 681 682 683 684 685 686 687
  if ($op == t("Save configuration")) {
    /*
    ** Save the configuration options:
    */

    foreach ($edit as $name => $value) {
      variable_set($name, $value);
    }
Dries's avatar
 
Dries committed
688
    drupal_set_message(t("the content settings have been saved."));
689 690 691 692 693 694 695 696 697 698
  }

  if ($op == t("Reset to defaults")) {
    /*
    ** Reset the configuration options to their default value:
    */

    foreach ($edit as $name => $value) {
      variable_del($name);
    }
Dries's avatar
 
Dries committed
699
    drupal_set_message(t("the content settings have been reset to their default values."));
700 701
  }

Dries's avatar
 
Dries committed
702
  $header = array_merge(array(t("type")), array_keys(node_invoke_nodeapi($node, "settings")));
703 704 705 706
  foreach (module_list() as $name) {
    if (module_hook($name, "node")) {
      $node->type = $name;
      $cols = array();
Dries's avatar
 
Dries committed
707
      foreach (node_invoke_nodeapi($node, "settings") as $setting) {
708 709 710 711 712
        $cols[] = array("data" => $setting, "align" => "center", "width" => 55);
      }
      $rows[] = array_merge(array(module_invoke($name, "node", "name")), $cols);
    }
  }
Kjartan's avatar
Kjartan committed
713

Dries's avatar
 
Dries committed
714
  $output .= theme("table", $header, $rows);
715

716
  /* This is an idea for the future.
717 718 719
  foreach (module_list() as $name) {
    if (module_hook($name, "node")) {
      $node->type = $name;
Kjartan's avatar
Kjartan committed
720

Dries's avatar
 
Dries committed
721
      // Create theme("table", ) data:
Dries's avatar
 
Dries committed
722
      $header = array_keys(node_invoke_nodeapi($node, "settings"));
723
      $cols = array();
Dries's avatar
 
Dries committed
724
      foreach (node_invoke_nodeapi($node, "settings") as $setting) {
725 726 727 728
        $cols[] = array("data" => $setting, "align" => "center", "width" => 75);
      }

      $output .= "<h2>". module_invoke($name, "node", "name") ."</h2>";
Dries's avatar
 
Dries committed
729
      $output .= theme("table", $header, array($cols));
730
      $output .= "<br /><br />";
731 732
    }
  }
733
  */
734 735 736

  $output .= form_submit(t("Save configuration"));
  $output .= form_submit(t("Reset to defaults"));
Kjartan's avatar
Kjartan committed
737

Dries's avatar
 
Dries committed
738
  return form($output);
739 740 741

}

Dries's avatar
 
Dries committed
742 743 744 745 746 747 748 749 750 751 752
function node_revision_overview($nid) {

  if (user_access("administer nodes")) {
    $node = node_load(array("nid" => $nid));

    if ($node->revisions) {
      $header = array(t("older revisions"), array("colspan" => "3", "data" => t("operations")));

      foreach ($node->revisions as $key => $revision) {
        $rows[] = array(t("revision #%r revised by %u on %d", array("%r" => $key, "%u" => format_name(user_load(array("uid" => $revision["uid"]))), "%d" => format_date($revision["timestamp"], "small"))) . ($revision["history"] ? "<br /><small>". $revision["history"] ."</small>" : ""), l(t("view"), "node/view/$node->nid", array(), "revision=$key"), l(t("rollback"), "node/rollback-revision/$node->nid/$key"), l(t("delete"), "node/delete-revision/$node->nid/$key"));
      }
Dries's avatar
 
Dries committed
753
      $output .= theme("table", $header, $rows);
Dries's avatar
 
Dries committed
754 755 756 757 758 759 760
    }
  }

  return $output;
}


Dries's avatar
 
Dries committed
761 762 763 764 765 766 767 768 769 770 771 772
/*
** Return the revision with the specified revision number.
*/

function node_revision_load($node, $revision) {
  return $node->revisions[$revision]["node"];
}

/*
** Create and return a new revision of the given node.
*/

Dries's avatar
 
Dries committed
773 774 775
function node_revision_create($node) {
  global $user;

Dries's avatar
 
Dries committed
776 777 778 779 780
  /*
  ** 'revision' is the name of the field used to indicicate that we
  ** have to create a new revision of a node.
  */

Dries's avatar
 
Dries committed
781
  if ($node->nid && $node->revision) {
Dries's avatar
 
Dries committed
782 783 784 785
    $prev = node_load(array("nid" => $node->nid));
    $node->revisions = $prev->revisions;
    unset($prev->revisions);
    $node->revisions[] = array("uid" => $user->uid, "timestamp" => time(), "node" => $prev, "history" => $node->history);
Dries's avatar
 
Dries committed
786 787 788 789 790
  }

  return $node;
}

Dries's avatar
 
Dries committed
791 792 793
/*
** Roll-back to the revision with the specified revision number.
*/
Dries's avatar
 
Dries committed
794

Dries's avatar
 
Dries committed
795
function node_revision_rollback($nid, $revision) {
Dries's avatar
 
Dries committed
796
  global $user;
Dries's avatar
 
Dries committed
797

Dries's avatar
 
Dries committed
798 799
  if (user_access("administer nodes")) {
    $node = node_load(array("nid" => $nid));
Dries's avatar
 
Dries committed
800

Dries's avatar
 
Dries committed
801 802 803
    /*
    ** Extract the specified revision:
    */
Dries's avatar
 
Dries committed
804

Dries's avatar
 
Dries committed
805
    $rev = $node->revisions[$revision]["node"];
Dries's avatar
 
Dries committed
806

Dries's avatar
 
Dries committed
807 808 809
    /*
    ** Inherit all the past revisions:
    */
Dries's avatar
 
Dries committed
810

Dries's avatar
 
Dries committed
811
    $rev->revisions = $node->revisions;
Dries's avatar
 
Dries committed
812

Dries's avatar
 
Dries committed
813 814 815
    /*
    ** Save the original/current node:
    */
Dries's avatar
 
Dries committed
816

Dries's avatar
 
Dries committed
817
    $rev->revisions[] = array("uid" => $user->uid, "timestamp" => time(), "node" => $node);
Dries's avatar
 
Dries committed
818

Dries's avatar
 
Dries committed
819 820 821
    /*
    ** Remove the specified revision:
    */
Dries's avatar
 
Dries committed
822

Dries's avatar
 
Dries committed
823
    unset($rev->revisions[$revision]);
Dries's avatar
 
Dries committed
824

Dries's avatar
 
Dries committed
825 826 827
    /*
    ** Save the node:
    */
Dries's avatar
 
Dries committed
828

Dries's avatar
 
Dries committed
829 830 831
    foreach ($node as $key => $value) {
      $filter[] = $key;
    }
Dries's avatar
 
Dries committed
832

Dries's avatar
 
Dries committed
833 834
    node_save($rev, $filter);

Dries's avatar
 
Dries committed
835
    drupal_set_message(t("rollbacked to revision #%revision of '%title'", array("%revision" => $revision, "%title" => $node->title)));
Dries's avatar
 
Dries committed
836
  }
Dries's avatar
 
Dries committed
837 838
}

Dries's avatar
 
Dries committed
839 840 841 842
/*
** Delete the revision with specified revision number.
*/

Dries's avatar
 
Dries committed
843 844 845 846
function node_revision_delete($nid, $revision) {

  if (user_access("administer nodes")) {
    $node = node_load(array("nid" => $nid));
Dries's avatar
 
Dries committed
847

Dries's avatar
 
Dries committed
848
    unset($node->revisions[$revision]);
Dries's avatar
 
Dries committed
849

Dries's avatar
 
Dries committed
850
    node_save($node, array("nid", "revisions"));
Dries's avatar
 
Dries committed
851

Dries's avatar
 
Dries committed
852
    drupal_set_message(t("deleted revision #%revision of '%title'", array("%revision" => $revision, "%title" => $node->title)));
Dries's avatar
 
Dries committed
853
  }
Dries's avatar
 
Dries committed
854 855
}

Dries's avatar
 
Dries committed
856 857 858 859 860 861 862 863 864 865 866
/*
** Return a list of all the existing revision numbers.
*/

function node_revision_list($node) {
  if (is_array($node->revisions)) {
    return array_keys($node->revisions);
  }
  else {
    return array();
  }
Dries's avatar
 
Dries committed
867 868
}

Dries's avatar
 
Dries committed
869
function node_admin() {
Dries's avatar
 
Dries committed
870 871
  $op = $_POST["op"];
  $edit = $_POST["edit"];
Dries's avatar
 
Dries committed
872

Dries's avatar
 
Dries committed
873
  if (user_access("administer nodes")) {
Dries's avatar
 
Dries committed
874

Dries's avatar
 
Dries committed
875 876 877 878
    if (empty($op)) {
      $op = arg(2);
    }

Dries's avatar
 
Dries committed
879 880 881
    /*
    ** Compile a list of the administrative links:
    */
Dries's avatar
 
Dries committed
882 883
    switch ($op) {
      case "search":
Dries's avatar
 
Dries committed
884
        $output = search_type("node", url("admin/node/search"), $_POST["keys"]);
Dries's avatar
 
Dries committed
885 886
        break;
      case "edit":
Dries's avatar
 
Dries committed
887
        $output = node_admin_edit(arg(3));
Dries's avatar
 
Dries committed
888
        break;
Dries's avatar
 
Dries committed
889
      case "delete":
Dries's avatar
 
Dries committed
890
        $output = node_delete(array("nid" => arg(3)));
Dries's avatar
 
Dries committed
891
        break;
Dries's avatar
 
Dries committed
892
      case t("Preview"):
Dries's avatar
 
Dries committed
893
        $edit = node_validate($edit, $error);
Dries's avatar
 
Dries committed
894
        $output = node_preview($edit, $error);
Dries's avatar
 
Dries committed
895
        break;
Dries's avatar
 
Dries committed
896
      case t("Submit"):
Dries's avatar
 
Dries committed
897
        $output = node_submit($edit);
Dries's avatar
 
Dries committed
898 899
        break;
      case t("Delete"):
Dries's avatar
 
Dries committed
900
        $output = node_delete($edit);
Dries's avatar
 
Dries committed
901
        break;
902 903 904
      case t("Save configuration"):
      case t("Reset to defaults"):