book.module 17.5 KB
Newer Older
Dries's avatar
 
Dries committed
1
<?php
2
// $Id$
Dries's avatar
 
Dries committed
3

Dries's avatar
 
Dries committed
4 5 6
function book_node($field) {
  global $user;

Dries's avatar
 
Dries committed
7
  $info["name"] = t("book page");
Dries's avatar
 
Dries committed
8
  $info["description"] = t("A book is a collaborative writing effort: users can collaborate writing the pages of the book, positioning the pages in the right order, and reviewing or modifying pages previously written.  So when you have some information to share or when you read a page of the book and you didn't like it, or if you think a certain page could have been written better, you can do something about it.");
Dries's avatar
 
Dries committed
9 10 11 12 13

  return $info[$field];
}

function book_access($op, $node) {
Dries's avatar
 
Dries committed
14
  global $user;
Dries's avatar
 
Dries committed
15 16

  if ($op == "view") {
Dries's avatar
 
Dries committed
17 18 19 20 21 22 23 24
    /*
    ** Everyone can access all published book pages whether these pages
    ** are still waiting for approval or not.  We might not always want
    ** to display pages that are waiting for approval, but we take care
    ** of that problem in the book_view() function.
    */

    return $node->status;
Dries's avatar
 
Dries committed
25 26
  }

Dries's avatar
 
Dries committed
27
  if ($op == "create") {
Dries's avatar
 
Dries committed
28 29 30 31 32
    return 1;
  }

  if ($op == "update") {

Dries's avatar
 
Dries committed
33
    /*
Dries's avatar
 
Dries committed
34 35 36 37
    ** Everyone can upate a book page if there are no suggested updates
    ** of that page waiting for approval and as long as the "create new
    ** revision"-bit is set; that is, only updates that don't overwrite
    ** the current or pending information are allowed.
Dries's avatar
 
Dries committed
38
    */
Dries's avatar
 
Dries committed
39
    return !$node->moderate && $node->revision;
Dries's avatar
 
Dries committed
40
  }
Dries's avatar
 
Dries committed
41 42
}

Dries's avatar
 
Dries committed
43
function book_save($op, $node) {
Dries's avatar
 
Dries committed
44
  global $user, $REQUEST_URI;
Dries's avatar
 
Dries committed
45 46 47 48 49 50 51 52 53 54 55 56 57 58

  if ($op == "approve") {
    return array("status" => 1);
  }

  if ($op == "create") {
    return array("moderate" => 1, "parent", "promote" => 0, "status" => 1, "weight");
  }

  if ($op == "decline") {
    return array("status" => 0);
  }

  if ($op == "update") {
Dries's avatar
 
Dries committed
59
    if (strstr($REQUEST_URI, "module.php?mod=node&op=edit")) {
Dries's avatar
 
Dries committed
60
      /*
Dries's avatar
 
Dries committed
61 62 63
      ** If a regular user updates a book page, we always create a new
      ** revision.  All new revisions have to be approved (moderation)
      ** and are not promoted by derault.  See also: book_load().
Dries's avatar
 
Dries committed
64 65
      */

Dries's avatar
 
Dries committed
66
      return array("created" => time(), "moderate" => 1, "parent", "promote" => 0, "score" => 0, "status" => 1, "users" => "", "revisions", "votes" => 0, "weight");
Dries's avatar
 
Dries committed
67
    }
Dries's avatar
 
Dries committed
68
    else if (user_access("adminster nodes")) {
Dries's avatar
 
Dries committed
69
      /*
Dries's avatar
 
Dries committed
70 71 72 73 74
      ** If a node administrator updates a book page, we don't create a
      ** new revision unless we are explicitly instructed to. If a node
      ** administrator updates a book page using the "update this book
      ** page"-link (like regular users do) then he'll be treated as a
      ** regular user.
Dries's avatar
 
Dries committed
75 76
      */

Dries's avatar
 
Dries committed
77
      return array("parent", "weight");
Dries's avatar
 
Dries committed
78 79 80 81 82
    }
  }

}

Dries's avatar
 
Dries committed
83
function book_link($type, $node = 0, $main = 0) {
Dries's avatar
 
Dries committed
84 85
  if ($type == "page" && user_access("access content")) {
    $links[] = "<a href=\"module.php?mod=book\">". t("collaborative book") ."</a>";
Dries's avatar
 
Dries committed
86
  }
Dries's avatar
 
Dries committed
87

Dries's avatar
 
Dries committed
88 89 90 91
  if ($type == "admin" && user_access("administer nodes")) {
    $links[] = "<a href=\"admin.php?mod=book\">". t("collaborative book") ."</a>";
  }

Dries's avatar
 
Dries committed
92
  if ($main == 0 && $type == "node" && $node->type == "book") {
Dries's avatar
 
Dries committed
93 94 95
    $links[] = "<a href=\"module.php?mod=node&op=edit&id=$node->nid\">". t("update this book page") ."</a>";
  }

Dries's avatar
 
Dries committed
96
  return $links ? $links : array();
Dries's avatar
 
Dries committed
97 98
}

Dries's avatar
 
Dries committed
99
function book_load($node) {
Dries's avatar
 
Dries committed
100 101 102 103 104
  global $user, $REQUEST_URI;

  $book = db_fetch_object(db_query("SELECT parent, weight FROM book WHERE nid = '$node->nid'"));

  if (strstr($REQUEST_URI, "module.php?mod=node&op=edit")) {
Dries's avatar
 
Dries committed
105

Dries's avatar
 
Dries committed
106 107 108 109 110 111 112
    /*
    ** If a user is about to update a book page, we overload some
    ** fields to reflect the changes.  We use the $REQUEST_URI to
    ** dectect this as we don't want to interfer with updating a
    ** book page through the admin pages.  See also: book_save().
    */

Dries's avatar
 
Dries committed
113 114 115 116 117 118 119 120
    if ($user->uid) {
      $book->uid = $user->uid;
      $book->name = $user->name;
    }
    else {
      $book->uid = 0;
      $book->name = "";
    }
Dries's avatar
 
Dries committed
121

Dries's avatar
 
Dries committed
122 123 124 125
    /*
    ** We set the revision field to indicate that we have to create
    ** a new revision when updating this book page.
    */
Dries's avatar
 
Dries committed
126

Dries's avatar
 
Dries committed
127 128 129
    $book->revision = 1;

  }
Dries's avatar
 
Dries committed
130

Dries's avatar
 
Dries committed
131
  return $book;
Dries's avatar
 
Dries committed
132 133
}

Dries's avatar
 
Dries committed
134
function book_insert($node) {
Dries's avatar
 
Dries committed
135
  db_query("INSERT INTO book (nid, parent, weight) VALUES ('$node->nid', '$node->parent', '$node->weight')");
Dries's avatar
 
Dries committed
136
}
Dries's avatar
 
Dries committed
137

Dries's avatar
 
Dries committed
138
function book_update($node) {
Dries's avatar
 
Dries committed
139
  db_query("UPDATE book SET parent = '$node->parent', weight = '$node->weight' WHERE nid = '$node->nid'");
Dries's avatar
 
Dries committed
140
}
Dries's avatar
 
Dries committed
141

142
function book_delete(&$node) {
Dries's avatar
 
Dries committed
143
  db_query("DELETE FROM book WHERE nid = '$node->nid'");
Dries's avatar
 
Dries committed
144 145
}

Dries's avatar
 
Dries committed
146

147
function book_form(&$node, &$help, &$error) {
Dries's avatar
 
Dries committed
148 149 150 151 152 153 154 155 156 157 158 159 160 161 162
  global $user;

  $output .= form_select(t("Parent"), "parent", $node->parent, book_toc(), t("The parent subject or category the page belongs in."));
  $output .= form_textarea(t("Content"), "body", $node->body, 60, 20, t("Allowed HTML tags") .": ". htmlspecialchars(variable_get("allowed_html", "")));
  $output .= form_textarea(t("Log message"), "history", $node->history, 60, 5, t("An explanation of the additions or updates being made to help the group understand your motivations."));

  if (user_access("administer nodes")) {
    $output .= form_select(t("Weight"), "weight", $node->weight, array(0, 1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19, 20, 21, 22, 23, 24, 25, 26, 27, 28, 29, 30), t("The heavier nodes will sink and the lighter nodes will be positioned nearer the top."));
  }
  else {

    /*
    ** Carry out some explanation or submission guidelines:
    */

Dries's avatar
 
Dries committed
163 164
    $help = book_node("description");

Dries's avatar
 
Dries committed
165 166 167 168 169 170 171 172 173 174 175
    /*
    ** If a regular user updates a book page, we create a new revision
    ** authored by that user:
    */

    $output .= form_hidden("revision", 1);
  }

  return $output;
}

Dries's avatar
 
Dries committed
176 177 178 179 180 181 182 183 184 185 186 187 188 189 190 191 192 193 194 195 196 197 198 199 200 201 202 203 204 205 206 207 208 209 210 211 212 213 214
/*
** Return the the most recent revision that matches the specified
** conditions.
*/

function book_revision_load($page, $conditions = array()) {

  $revisions = array_reverse(node_revision_list($page));

  foreach ($revisions as $revision) {

    /*
    ** Extract the specified revision:
    */

    $node = node_revision_load($page, $revision);

    /*
    ** Check to see if the conditions are met:
    */

    $status = 1;

    foreach ($conditions as $key => $value) {
      if ($node->$key != $value) {
        $status = 0;
      }
    }

    if ($status) {
      return $node;
    }
  }
}

/*
** Return the path (call stack) to a certain book page.
*/

Dries's avatar
 
Dries committed
215
function book_location($node, $nodes = array()) {
Dries's avatar
 
Dries committed
216
  $parent = db_fetch_object(db_query("SELECT n.nid, n.title, b.parent FROM node n LEFT JOIN book b ON n.nid = b.nid WHERE n.nid = '$node->parent'"));
Dries's avatar
 
Dries committed
217 218 219 220 221 222 223
  if ($parent->title) {
    $nodes = book_location($parent, $nodes);
    array_push($nodes, $parent);
  }
  return $nodes;
}

Dries's avatar
 
Dries committed
224
function book_view($node, $main = 0) {
Dries's avatar
 
Dries committed
225 226 227 228 229 230 231 232 233
  global $theme, $mod;

  /*
  ** Always display the most recently approved revision of a node
  ** unless we have to display it in the context of the moderation
  ** queue.
  */

  if ($node->moderate && $mod != "queue") {
Dries's avatar
 
Dries committed
234
    $node = book_revision_load($node, array("moderate" => 0, "status" => 1));
Dries's avatar
 
Dries committed
235 236 237 238 239 240 241
  }

  /*
  ** Display the node.  If not displayed on the main page, we render
  ** the node as a page in the book with extra links to the previous
  ** and the next page.
  */
Dries's avatar
 
Dries committed
242

Dries's avatar
 
Dries committed
243 244
  if ($main) {
    $theme->node($node, $main);
Dries's avatar
 
Dries committed
245
  }
Dries's avatar
 
Dries committed
246 247
  else {
    if ($node->nid && $node->parent) {
248 249
      $next = db_fetch_object(db_query("SELECT n.nid, n.title FROM node n LEFT JOIN book b ON n.nid = b.nid WHERE n.status = 1 AND b.parent = '$node->parent' AND (b.weight > '$node->weight' OR (b.weight = '$node->weight' AND n.title > '". check_query($node->title) ."')) AND (n.moderate = 0 OR n.revisions != '') ORDER BY b.weight ASC, n.title ASC"));
      $prev = db_fetch_object(db_query("SELECT n.nid, n.title FROM node n LEFT JOIN book b ON n.nid = b.nid WHERE n.status = 1 AND b.parent = '$node->parent' AND (b.weight < '$node->weight' OR (b.weight = '$node->weight' AND n.title < '". check_query($node->title) ."')) AND (n.moderate = 0 OR n.revisions != '') ORDER BY b.weight DESC, n.title DESC"));
Dries's avatar
 
Dries committed
250
    }
Dries's avatar
 
Dries committed
251

Dries's avatar
 
Dries committed
252
    $output .= "<table border=\"0\" cellpadding=\"1\" cellspacing=\"1\" width=\"100%\">";
Dries's avatar
 
Dries committed
253

Dries's avatar
 
Dries committed
254 255
    if ($node->title) {
      foreach (book_location($node) as $level) {
Dries's avatar
 
Dries committed
256
        $location .= "$indent <a href=\"node.php?id=$level->nid\">$level->title</a><br />";
Dries's avatar
 
Dries committed
257 258
        $indent .= "-";
      }
Dries's avatar
 
Dries committed
259

Dries's avatar
 
Dries committed
260
      $output .= " <tr><td colspan=\"3\">$location</td></tr>";
Dries's avatar
 
Dries committed
261 262
      $output .= " <tr><td colspan=\"3\"><hr /></td></tr>";
      $output .= " <tr><td colspan=\"3\"><b><big>". check_output($node->title) ."</big></b>". ($node->body ? "<br /><small><i>". sprintf(t("Last updated by %s on %s"), format_name($node), format_date($node->created)) ."</i></small> " : "") ."</td></tr>";
Dries's avatar
 
Dries committed
263
    }
Dries's avatar
 
Dries committed
264

Dries's avatar
 
Dries committed
265
    if ($node->body) {
Dries's avatar
 
Dries committed
266
      $output .= " <tr><td colspan=\"3\"><br />". check_output($node->body, 1) ."</td></tr>";
Dries's avatar
 
Dries committed
267
    }
Dries's avatar
 
Dries committed
268

Dries's avatar
 
Dries committed
269
    if ($node->nid) {
Dries's avatar
 
Dries committed
270
      $output .= " <tr><td colspan=\"3\"><br />". book_tree($node->nid) ."</td></tr>";
Dries's avatar
 
Dries committed
271
    }
Dries's avatar
 
Dries committed
272

Dries's avatar
 
Dries committed
273 274 275
    $output .= " <tr><td colspan=\"3\"><hr /></td></tr>";
    $output .= " <tr><td align=\"left\" width=\"33%\">". ($prev ? "<a href=\"node.php?id=$prev->nid\">". t("previous") ."</a>" : t("previous")) ."</td><td align=\"center\" width=\"34%\"><a href=\"module.php?mod=book\">index</a></td><td align=\"right\" width=\"33%\">". ($next ? "<a href=\"node.php?id=$next->nid\">". t("next") ."</a>" : t("next")) ."</td></tr>";
    $output .= " <tr><td align=\"left\" width=\"33%\">". ($prev ? "<small>". check_output($prev->title) ."</small>" : "&nbsp;") ."</td><td align=\"center\" width=\"34%\">". ($node->parent ? "<a href=\"node.php?id=$node->parent\">". t("up") ."</a>" : t("up")) ."</td><td align=\"right\" width=\"33%\">". ($next ? "<small>". check_output($next->title) ."</small>" : "&nbsp;") ."</td></tr>";
Dries's avatar
 
Dries committed
276 277
    $output .= " <tr><td colspan=\"3\"><hr /></td></tr>";
    $output .= " <tr><td colspan=\"3\" align=\"right\"><div style=\"margin: 10 10 10 10;\">". $theme->links(link_node($node, $main)) ."</div></td></tr>";
Dries's avatar
 
Dries committed
278
    $output .= "</table>";
Dries's avatar
 
Dries committed
279

Dries's avatar
 
Dries committed
280 281
    $theme->box(t("Handbook"), $output);
  }
Dries's avatar
 
Dries committed
282 283
}

Dries's avatar
 
Dries committed
284
function book_toc($parent = "", $indent = "", $toc = array()) {
Dries's avatar
 
Dries committed
285

Dries's avatar
 
Dries committed
286 287 288 289
  /*
  ** Select all child nodes:
  */

290
  $result = db_query("SELECT n.nid, n.title FROM node n LEFT JOIN book b ON n.nid = b.nid WHERE n.type = 'book' AND n.status = 1 AND b.parent = '$parent' AND (n.moderate = 0 OR n.revisions != '') ORDER BY b.weight");
Dries's avatar
 
Dries committed
291 292

  /*
Dries's avatar
 
Dries committed
293 294
  ** If the user is an administrator, add the root node; only
  ** administrators can start new books.
Dries's avatar
 
Dries committed
295
  */
Dries's avatar
 
Dries committed
296

Dries's avatar
 
Dries committed
297
  if (user_access("administer nodes")) {
Dries's avatar
 
Dries committed
298
    $toc[0] = "<root>";
Dries's avatar
 
Dries committed
299 300
  }

Dries's avatar
 
Dries committed
301 302 303 304
  /*
  ** Build the table of contents:
  */

Dries's avatar
 
Dries committed
305
  while ($node = db_fetch_object($result)) {
Dries's avatar
 
Dries committed
306 307
    $toc[$node->nid] = "$indent $node->title";
    $toc = book_toc($node->nid, "$indent-", $toc);
Dries's avatar
 
Dries committed
308
  }
Dries's avatar
 
Dries committed
309

Dries's avatar
 
Dries committed
310 311 312
  return $toc;
}

Dries's avatar
Dries committed
313
function book_tree($parent = "", $depth = 0) {
Dries's avatar
 
Dries committed
314

Dries's avatar
 
Dries committed
315
  if ($depth < 3) {
Dries's avatar
 
Dries committed
316

Dries's avatar
 
Dries committed
317 318 319 320
    /*
    ** Select all child nodes and render them into a table of contents:
    */

321
   $result = db_query("SELECT n.nid FROM node n LEFT JOIN book b ON n.nid = b.nid WHERE n.type = 'book' AND b.parent = '$parent' AND (n.moderate = 0 OR n.revisions != '') ORDER BY b.weight, n.title");
Dries's avatar
 
Dries committed
322

Dries's avatar
 
Dries committed
323 324 325
     while ($page = db_fetch_object($result)) {
       // load the node:
       $node = node_load(array("nid" => $page->nid));
Dries's avatar
 
Dries committed
326

Dries's avatar
 
Dries committed
327 328
       // take the most recent approved revision:
       if ($node->moderate) {
Dries's avatar
 
Dries committed
329
         $node = book_revision_load($node, array("moderate" => 0, "status" => 1));
Dries's avatar
 
Dries committed
330
       }
Dries's avatar
 
Dries committed
331

Dries's avatar
 
Dries committed
332 333 334
       if ($node) {
         // output the content:
         $output .= "<li><a href=\"node.php?id=$node->nid\">". check_output($node->title) ."</a></li>";
Dries's avatar
 
Dries committed
335

Dries's avatar
 
Dries committed
336 337 338
         // build the sub-tree of each child:
         $output .= book_tree($node->nid, $depth + 1);
       }
Dries's avatar
 
Dries committed
339 340 341
     }

     $output = "<ul>$output</ul>";
Dries's avatar
 
Dries committed
342

Dries's avatar
 
Dries committed
343
  }
Dries's avatar
 
Dries committed
344

Dries's avatar
 
Dries committed
345 346 347
  return $output;
}

Dries's avatar
 
Dries committed
348
function book_render() {
Dries's avatar
 
Dries committed
349
  global $theme;
Dries's avatar
Dries committed
350

351
  $result = db_query("SELECT n.nid FROM node n LEFT JOIN book b ON n.nid = b.nid WHERE b.parent = 0 AND n.status = 1 AND (n.moderate = 0 OR n.revisions != '') ORDER BY b.weight");
Dries's avatar
 
Dries committed
352

Dries's avatar
 
Dries committed
353 354 355 356 357 358
  while ($page = db_fetch_object($result)) {
    // load the node:
    $node = node_load(array("nid" => $page->nid));

    // take the most recent approved revision:
    if ($node->moderate) {
Dries's avatar
 
Dries committed
359
      $node = book_revision_load($node, array("moderate" => 0, "status" => 1));
Dries's avatar
 
Dries committed
360 361
    }

Dries's avatar
 
Dries committed
362 363 364 365
    if ($node) {
      // output the content:
      $output .= "<dt><a href=\"node.php?id=$node->nid\">". check_output($node->title) ."</a></dt><dd>". check_output($node->body, 1) ."<br /><br /></dd>";
    }
Dries's avatar
 
Dries committed
366 367 368
  }

  $theme->header();
Dries's avatar
 
Dries committed
369
  $theme->box(t("Handbook"), "<dl>$output</dl>");
Dries's avatar
 
Dries committed
370 371 372 373 374 375
  $theme->footer();
}

function book_page() {
  global $op, $id, $theme;

Dries's avatar
 
Dries committed
376
  if (user_access("access content")) {
Dries's avatar
 
Dries committed
377 378
    switch ($op) {
      case "feed":
Dries's avatar
 
Dries committed
379
        print book_export_html($id, $depth = 1);
Dries's avatar
 
Dries committed
380 381 382
        break;
      default:
        book_render();
Dries's avatar
 
Dries committed
383 384 385 386 387 388 389
    }
  }
  else {
    $theme->header();
    $theme->box(t("Access denied"), message_access());
    $theme->footer();
  }
Dries's avatar
 
Dries committed
390 391
}

Dries's avatar
 
Dries committed
392
function book_export_html($id = "", $depth = 1) {
393
  $result = db_query("SELECT n.nid FROM node n LEFT JOIN book b ON n.nid = b.nid WHERE n.type = 'book' AND n.status = 1 AND n.nid = '". check_input($id) ." AND (n.moderate = 0 OR n.revisions != '')'");
Dries's avatar
 
Dries committed
394

Dries's avatar
 
Dries committed
395 396 397
  while ($page = db_fetch_object($result)) {
    // load the node:
    $node = node_load(array("nid" => $page->nid));
Dries's avatar
 
Dries committed
398

Dries's avatar
 
Dries committed
399 400
    // take the most recent approved revision:
    if ($node->moderate) {
Dries's avatar
 
Dries committed
401
      $node = book_revision_load($node, array("moderate" => 0, "status" => 1));
Dries's avatar
 
Dries committed
402 403
    }

Dries's avatar
 
Dries committed
404 405 406
    if ($node) {
      // output the content:
      $output .= "<h$depth>". check_output($node->title) ."</h$depth>";
Dries's avatar
 
Dries committed
407

Dries's avatar
 
Dries committed
408 409 410
      if ($node->body) {
        $output .= "<ul>". check_output($node->body, 1) ."</ul>";
      }
Dries's avatar
 
Dries committed
411
    }
Dries's avatar
 
Dries committed
412
  }
Dries's avatar
 
Dries committed
413

Dries's avatar
 
Dries committed
414 415 416 417 418 419
  $output .= book_export_html_recursive($id, $depth);

  return $output;
}

function book_export_html_recursive($parent = "", $depth = 1) {
420
  $result = db_query("SELECT n.nid FROM node n LEFT JOIN book b ON n.nid = b.nid WHERE n.type = 'book' AND n.status = 1 AND b.parent = '$parent' AND (n.moderate = 0 OR n.revisions != '') ORDER BY b.weight");
Dries's avatar
 
Dries committed
421

Dries's avatar
 
Dries committed
422 423 424 425 426 427
  while ($page = db_fetch_object($result)) {
    // load the node:
    $node = node_load(array("nid" => $page->nid));

    // take the most recent approved revision:
    if ($node->moderate) {
Dries's avatar
 
Dries committed
428
      $node = book_revision_load($node, array("moderate" => 0, "status" => 1));
Dries's avatar
 
Dries committed
429 430
    }

Dries's avatar
 
Dries committed
431 432 433
    if ($node) {
      // output the content:
      $output .= "<h$depth>". check_output($node->title) ."</h$depth>";
Dries's avatar
 
Dries committed
434

Dries's avatar
 
Dries committed
435 436 437
      if ($node->body) {
        $output .= "<blockquote>". check_output($node->body, 1) ."</blockquote>";
      }
Dries's avatar
 
Dries committed
438

Dries's avatar
 
Dries committed
439 440
      $output .= book_export_html_recursive($node->nid, $depth + 1);
    }
Dries's avatar
 
Dries committed
441
  }
Dries's avatar
 
Dries committed
442

Dries's avatar
 
Dries committed
443 444
  return $output;
}
Dries's avatar
 
Dries committed
445

Dries's avatar
 
Dries committed
446 447 448 449 450 451 452 453 454 455 456 457 458 459 460 461 462 463 464 465 466 467 468 469 470 471 472 473
function book_admin_view_line($node, $depth = 0) {

  /*
  ** Extract the revision number:
  */

  if ($list = node_revision_list($node)) {
    $revision = end($list);
  }
  else {
    $revision = 0;
  }

  /*
  ** Diplay the book page:
  */

  $output .= "<tr>";
  $output .= " <td><div style=\"padding-left: ". (25 * $depth) ."px;\"><a href=\"node.php?id=$node->nid\">". check_output($node->title) ."</a></div></td>";
  $output .= " <td align=\"center\">$revision</td>";
  $output .= " <td><a href=\"admin.php?mod=node&op=edit&id=$node->nid\">". t("edit page") ."</td>";
  $output .= " <td><a href=\"admin.php?mod=node&op=delete&id=$node->nid\">". t("delete page") ."</td>";
  $output .= "</tr>";

  return $output;
}

function book_admin_view_book($nid, $depth = 1) {
Dries's avatar
 
Dries committed
474 475 476 477 478 479
  $weight = array(0, 1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19, 20, 21, 22, 23, 24, 25, 26, 27, 28, 29, 30);

  $result = db_query("SELECT n.nid FROM node n LEFT JOIN book b ON n.nid = b.nid WHERE n.type = 'book' AND b.parent = '$nid' ORDER BY b.weight, n.title");

  while ($node = db_fetch_object($result)) {
    $node = node_load(array("nid" => $node->nid));
Dries's avatar
 
Dries committed
480 481
    $output .= book_admin_view_line($node, $depth);
    $output .= book_admin_view_book($node->nid, $depth + 1);
Dries's avatar
 
Dries committed
482 483 484 485 486 487 488 489 490 491 492 493
  }

  return $output;
}

function book_admin_view($nid, $depth = 0) {

  $node = node_load(array("nid" => $nid));

  $output .= "<h3>". check_output($node->title) ."</h3>";
  $output .= "<table border=\"1\" cellpadding=\"2\" cellspacing=\"2\">";
  $output .= " <tr><th>title</th><th>rev</th><th colspan=\"2\">operations</th></tr>";
Dries's avatar
 
Dries committed
494 495
  $output .= book_admin_view_line($node);
  $output .= book_admin_view_book($nid);
Dries's avatar
 
Dries committed
496 497 498 499 500 501 502 503 504 505 506 507 508 509 510 511 512 513 514 515 516 517 518 519 520 521 522 523 524 525 526 527 528 529 530 531 532 533 534 535 536 537 538 539 540 541 542 543 544 545 546 547 548 549 550 551 552 553 554 555 556
  $output .= "</table>";

  return $output;
}

function book_admin_orphan() {

  $result = db_query("SELECT n.nid, n.title, b.parent FROM node n LEFT JOIN book b ON n.nid = b.nid WHERE n.type = 'book'");

  while ($page = db_fetch_object($result)) {
    $pages[$page->nid] = $page;
  }

  $output .= "<table border=\"1\" cellpadding=\"2\" cellspacing=\"2\">";
  $output .= " <tr><th>title</th><th colspan=\"2\">operations</th></tr>";
  foreach ($pages as $nid => $node) {
    if ($node->parent && empty($pages[$node->parent])) {
      $output .= "<tr><td><a href=\"node.php?id=$node->nid\">". check_output($node->title) ."</a></td><td><a href=\"admin.php?mod=node&op=edit&id=$node->nid\">". t("edit page") ."</td><td><a href=\"admin.php?mod=node&op=delete&id=$node->nid\">". t("delete page") ."</td>";
    }
  }
  $output .= "</table>";

  return $output;
}

function book_admin_links() {
  $result = db_query("SELECT n.nid, n.title FROM node n LEFT JOIN book b ON n.nid = b.nid WHERE b.parent = 0 ORDER BY b.weight, n.title");

  while ($book = db_fetch_object($result)) {
    $links[] = "<a href=\"admin.php?mod=book&op=view&id=$book->nid\">". t("book") .": <i>". check_output($book->title) ."</i></a>";
  }

  return $links;
}

function book_admin() {
  global $id, $op;

  if (user_access("administer nodes")) {

    /*
    ** Compile a list of the administrative links:
    */

    $links = book_admin_links();
    $links[] = "<a href=\"admin.php?mod=book&op=orphan\">". t("orphan pages") ."</a>";

    print "<small>". implode(" &middot; ", $links) ."</small><hr />";

    switch ($op) {
      case "orphan":
        print book_admin_orphan();
        break;
      case "view":
        print book_admin_view($id);
        break;
      default:
    }
  }
}

Dries's avatar
 
Dries committed
557
?>