forum.module 27.5 KB
Newer Older
Dries's avatar
 
Dries committed
1 2 3
<?php
// $Id$

4
function forum_system($field){
Dries's avatar
 
Dries committed
5
  $system["description"] = t("Enable threaded discussions about general topics.");
6 7 8
  return $system[$field];
}

Dries's avatar
 
Dries committed
9 10 11 12 13 14 15 16 17 18 19
function forum_node($field) {
  $info["name"] = t("discussion forum");
  $info["description"] = t("A forum is a threaded discussion, enabling users to communicate about a particular topic.");

  return $info[$field];
}

function forum_access($op, $node) {
  if ($op == "view") {
    return $node->status;
  }
Dries's avatar
 
Dries committed
20 21 22
  if ($op == "create") {
    return user_access("post content");
  }
Dries's avatar
 
Dries committed
23 24
}

Dries's avatar
 
Dries committed
25 26 27
function forum_perm() {
  return array("post forum topics without approval");
}
Dries's avatar
 
Dries committed
28

Dries's avatar
 
Dries committed
29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51
function forum_conf_options() {
  foreach (taxonomy_get_vocabularies("forum") as $vid => $voc) {
    $vocs[$vid] = $voc->name;
  }
  $output .= "<a name=\"image_nav_vocabulary\"></a>";
  $output .= form_select("Forum vocabulary", "forum_nav_vocabulary", variable_get("forum_nav_vocabulary", ""), $vocs, t("The taxonomy vocabulary that will be uses as the navigation tree."));
  $output .= _taxonomy_term_select("Containers", "forum_containers", variable_get("forum_containers", array()), variable_get("forum_nav_vocabulary", ""), t("You can choose vocabularies which will not have topics, but will be just containers for other forums."), 1, t("<none>"));

  $output .= form_textfield("Topic icons path", "forum_topic_icon_path", variable_get("forum_topic_icon_path", "images/forum/topics/"), 30, 255, "The path to the topic icons.  Leave blank to disable icons.");
  $output .= form_textfield("Folder icons path", "forum_folder_icon_path", variable_get("forum_folder_icon_path", "images/forum/folder/"), 30, 255, "Path to the <i>default</i>, <i>hot</i>, <i>new</i> and <i>closed folder</i> icons.  Leave blank to disable icons.");
  $number = array(5 => 5, 10 => 10, 15 => 15, 20 => 20, 25 => 25, 30 => 30, 35 => 35, 40 => 40, 50 => 50, 60 => 60, 80 => 80, 100 => 100, 10000=>10000);
  $output .= form_select("Hot topic threshold", "forum_hot_topic", variable_get("forum_hot_topic", 15), $number, "The number of posts a topic must have to be considered <i>hot</i>.");
  $number = array(10 => 10, 25 => 25, 50 => 50, 75 => 75, 100 => 100);
  $output .= form_select("Topics per page", "forum_per_page", variable_get("forum_per_page", 25), $number, "The default number of topics displayed per page; links to browse older messages are automatically being displayed.");
  $forder = array(1 => "Date - newest first", 2 => "Date - oldest first", 3 => "Posts - most active first", 4=> "Posts - least active first");
  $output .= form_select("Default order", "forum_order", variable_get("forum_order", 1), $forder, "The default display order for topics.");
  $output .= form_textfield("Number of topics in block", "forum_block_num", variable_get("forum_block_num", "5"), 5, 5, "The number of topics in the <i>active topics</i> block.");
  $output .= form_select("Internal caching", "forum_cache", variable_get("forum_cache", 0), array("disabled", "enabled"), "Cache internal datastructures for both anonymous and autheticated users.  When enabled, the forum data won't be 100% up to date with regards regardto the number of posts, the number of replies and the last topic being posted.  Enable when you have busy forum.");

  return $output;
}

function forum_save($op, $node) {
Dries's avatar
 
Dries committed
52 53 54 55 56
  if ($op == "approve") {
    return array("status" => 1);
  }

  if ($op == "create") {
Dries's avatar
 
Dries committed
57 58 59 60 61 62
    if (user_access("post forum topics without approval")) {
      $moderation = array("body" => filter($node->body), "moderate" => 0, "status" => 1);
    } else {
      $moderation = array("body" => filter($node->body), "moderate" => 1, "status" => 0);
    }
    return array_merge($moderation, array("tid", "icon_num", "shadow"));
Dries's avatar
 
Dries committed
63 64
  }

Dries's avatar
 
Dries committed
65 66
  if ($op == "decline") {
    return array("status" => 0);
Dries's avatar
 
Dries committed
67 68 69
  }

  if ($op == "update") {
Dries's avatar
 
Dries committed
70 71 72 73 74 75 76 77 78
    // if she changed the term, we could have to leave a shadow
    $old_terms = explode(",", $node->old_container);
    foreach ($node->taxonomy as $term) {
      if ($term && (!in_array($term, $old_terms)) && $node->shadow) {
        $shadow = $term;
        break;
      }
    }
    return array("body" => filter($node->body), "tid", "icon_num", "shadow" => $shadow, "old_container");
Dries's avatar
 
Dries committed
79 80 81
  }
}

Dries's avatar
 
Dries committed
82 83 84 85 86 87 88 89 90 91 92 93 94 95 96 97 98 99 100 101 102 103 104 105 106
function forum_load($node) {
  $forum = db_fetch_object(db_query("SELECT * FROM forum WHERE nid = '%d' AND shadow = 0", $node->nid));

  return $forum;
}

function forum_block() {
  if (user_access("access content")) {
    $result = db_query("SELECT n.nid, n.title, n.body, GREATEST(n.created, MAX(c.timestamp)) AS sort FROM node n, forum f LEFT JOIN comments c ON c.nid = n.nid WHERE n.type = 'forum' AND n.nid = f.nid AND f.shadow = 0 AND n.status = 1 GROUP BY n.nid ORDER BY sort DESC LIMIT ". variable_get("forum_block_num", "5"));
    while ($node = db_fetch_object($result)) {
      $content .= "<li>".l(check_output($node->title), array("id" => $node->nid), "node", "", array("title" => substr(strip_tags($node->body), 0, 100)."..."))."</li>\n";
    }

    if ($content) {
      $content .= "<p><div align=\"center\">".lm(t("browse forums"), array("mod" => "forum"))."</div></p>";
    }
  }
  $blocks[0][subject] = t("Forum active topics");
  $blocks[0][content] = $content;
  $blocks[0][info] = t("Forum active topics");

  return $blocks;
}

function forum_link($type, $node) {
Dries's avatar
 
Dries committed
107
  if ($type == "page" && user_access("access content")) {
Dries's avatar
 
Dries committed
108
    $links[] = lm(t("forum"), array("mod" => "forum"));
Dries's avatar
 
Dries committed
109 110
  }

Dries's avatar
 
Dries committed
111 112 113 114 115 116 117 118 119 120 121 122 123 124 125 126 127 128 129 130 131 132 133 134 135 136 137 138 139 140 141 142 143 144 145 146 147
  if ($type == "menu.create" && user_access("post content")) {
    // I had complains that having this link leads people not to choose a forum, and always post in the first forum.
    #$links[] = lm(t("create forum topic"), array("mod" => "node", "op" => "add", "type" => "forum"), "", array("title" => t("Start a new forum topic.")));
  }

  if ($type == "node" && $node->type == "forum") {
    // get previous and next topic

    $sql = "SELECT n.nid, title, body, GREATEST(n.created, MAX(c.timestamp)) AS date_sort, COUNT(c.nid) AS num_comments FROM node n, term_node t, forum f LEFT JOIN comments c ON c.nid = n.nid WHERE n.nid = t.nid AND n.nid = f.nid AND t.tid = '%d' AND f.shadow = 0 AND n.status = 1 GROUP BY n.nid ORDER BY ". _forum_get_topic_order(isset($user->sortby) ? $user->sortby : variable_get("forum_order",1));

    $terms = array_keys(taxonomy_node_get_terms_by_vocabulary($node->nid, variable_get("forum_nav_vocabulary", "")));
    $result = db_query($sql, $terms[0]);

    while ($topic = db_fetch_object($result)) {
      if ($stop == 1) {
        $next->nid = $topic->nid;
        $next->title = $topic->title;
        $next->body = $topic->body;
        break;
      }
      if ($topic->nid == $node->nid) {
        $stop = 1;
      }
      else {
        $prev->nid = $topic->nid;
        $prev->title = $topic->title;
        $prev->body = $topic->body;
      }
    }

    if ($prev) {
      $links[] = l(t("previous topic"), array("id" => $prev->nid), "node", "", array("title" => $prev->title."\n".substr(strip_tags($prev->body), 0, 100)."..."));
    }

    if ($next) {
      $links[] = l(t("next topic"), array("id" => $next->nid), "node", "", array("title" => $next->title."\n".substr(strip_tags($next->body), 0, 100)."..."));
    }
Dries's avatar
 
Dries committed
148 149
  }

Dries's avatar
 
Dries committed
150 151 152
  return $links ? $links : array();
}

Dries's avatar
 
Dries committed
153
function forum_view($node, $main = 0) {
Dries's avatar
 
Dries committed
154
  global $theme;
Dries's avatar
 
Dries committed
155 156 157 158 159 160 161 162 163 164 165

  $term_data = array_shift(taxonomy_node_get_terms($node->nid));
  if (!$term_data) {
    // we are previewing
    $term_data = taxonomy_get_term($node->taxonomy[0]);
  }
  $voc = taxonomy_get_vocabulary($term_data->vid);

  $output .= "<p>"._forum_get_icon($node)." ".lm(check_output($voc->name), array("mod" => "forum"))." : ".lm(check_output($term_data->name), array("mod" => "forum", "tid" => $term_data->tid));

  $output .= " / <b>". check_output($node->title) ."</b><br>".t("%a by %b", array("%a" => format_date($node->created), "%b" => format_name($node)))."</p><p>". check_output($node->body, 1) ."</p>";
Dries's avatar
 
Dries committed
166 167
  $output .= "<p>". $theme->links(link_node($node, $main)) ."</p>";

Dries's avatar
 
Dries committed
168 169 170 171 172
  #$theme->box(t("Discussion forum"), $output);

  $node->title = _forum_get_icon($node)." ".lm(check_output($voc->name), array("mod" => "forum"))." : ".lm(check_output($term_data->name), array("mod" => "forum", "tid" => $term_data->tid)) . " / <b>". check_output($node->title) ."</b>";

  $theme->node($node, $main);
Dries's avatar
 
Dries committed
173 174 175
}

function forum_form(&$node, &$help, &$error) {
Dries's avatar
 
Dries committed
176 177 178 179 180 181 182 183 184 185 186 187 188 189 190
  global $tid;
  if ($node->nid) {
    if ($node->taxonomy) {
      $tid = $node->taxonomy;
    } else {
      // editing: load category from taxonomy
      $tid = implode(",", array_keys(taxonomy_node_get_terms($node->nid)));
    }
    //$output .= implode("<p>", taxonomy_node_form("forum", $node));
    $output .= "<input type=\"hidden\" name=\"edit[old_container]\" value=\"".implode(",", array_keys(taxonomy_node_get_terms($node->nid)))."\">";
    $output .= form_checkbox(t("Leave shadow?"), "shadow", 1, 1, t("If you move this topic, you can leave a link in the old forum to the new forum."));
  } else {
    if ($node->taxonomy) {
      $tid = $node->taxonomy;
    }
191 192
  }

Dries's avatar
 
Dries committed
193 194 195 196 197 198 199 200 201 202 203 204 205 206 207 208 209 210 211 212 213 214 215 216 217 218 219 220 221 222 223
  $output .= _taxonomy_term_select("Forum", "taxonomy", $tid, variable_get("forum_nav_vocabulary", ""), "", 0, "", variable_get("forum_containers", array()));

  if ($icon_path = variable_get("forum_topic_icon_path", "images/forum/topics/")) {
    if ($node->icon) {
      // we are editing post
      if ($dir = @opendir($icon_path)) {
        $icon_num = 0;
        while($icon = readdir($dir)) {
          if ($icon == '.' || $icon == '..') {continue;}
          if ($node->icon == $icon) {$checked = "checked";} else {$checked = "";}
          $radio .= "<input type=\"radio\" name=\"edit[icon_num]\" value=\"$icon_num\" $checked><img src=\"$icon_path$icon\"> \n";
          $icon_num++;
        }
        closedir($dir);
      }
    }
    else {
      if ($dir = @opendir($icon_path)) {
        $icon_num = 0;
        while($icon = readdir($dir)) {
          if ($icon == '.' || $icon == '..') {continue;}
          if ($node->icon_num == $icon_num) {$checked = "checked";} else {$checked = "";}
          $radio .= "<input type=\"radio\" name=\"edit[icon_num]\" value=\"$icon_num\" $checked><img src=\"$icon_path$icon\"> \n";
          $icon_num++;
        }
        closedir($dir);
      }
    }
    $output .= form_item(t("Topic icon"), $radio);
  }
  $output .= form_textarea("Body", "body", $node->body, 60, 10);
Dries's avatar
 
Dries committed
224 225 226 227

  return $output;
}

Dries's avatar
 
Dries committed
228 229 230 231 232 233 234 235 236 237 238 239 240 241 242 243 244 245 246 247 248 249 250 251 252 253 254 255 256 257 258 259 260 261 262 263 264 265 266 267 268 269 270 271 272 273
function forum_insert($node) {
  $node->icon = _forum_decode_icon($node);
  if (!$node->shadow) {
    db_query("INSERT INTO forum (nid, icon) VALUES ('%d', '%s')", $node->nid, $node->icon);
  } else {
    // we created a shadow, a link to a moved topic in a new forum
    db_query("INSERT INTO forum (nid, icon, shadow) VALUES ('%d', '%s', '%d')", $node->nid, $node->icon, $node->shadow);
  }

  if (variable_get("forum_cache", 0)) {
    cache_clear();
  }
}

function forum_update($node) {
  $node->icon = _forum_decode_icon($node);
  db_query("UPDATE forum SET icon = '%s' WHERE nid = '%d'", $node->icon, $node->nid);
  if ($node->shadow) {
    // insert in old forum a new topic, with link to new forum
    $node->nid = "";
    $node->type = "forum";
    $node->status = 1;
    $node->taxonomy = array($node->old_container);
    node_submit($node);
  }
}

function _forum_decode_icon($node) {
  // to prevent malicious users
  if ($icon_path = variable_get("forum_topic_icon_path", "images/forum/topics/")) {
    if ($dir = @opendir($icon_path)) {
      $icon_num = 0;
      while($icon = readdir($dir)) {
        if ($icon == '.' || $icon == '..') {continue;}
        if ($icon_num == $node->icon_num) {$myicon = $icon;}
        $icon_num++;
      }
      closedir($dir);
    }
  }
  return $myicon;
}

function forum_delete(&$node) {
  db_query("DELETE FROM forum WHERE nid = '%d'", $node->nid);
}
Dries's avatar
 
Dries committed
274

Dries's avatar
 
Dries committed
275 276
function _forum_num_comments($nid) {
  $value = db_fetch_object(db_query("SELECT COUNT(cid) AS count FROM comments WHERE nid = '%d' AND status = 0", $nid));
Dries's avatar
 
Dries committed
277 278 279
  return ($value) ? $value->count : 0;
}

Dries's avatar
 
Dries committed
280 281
function _forum_last_comment($nid) {
  $value = db_fetch_object(db_query("SELECT timestamp FROM comments WHERE nid = '%d' AND status = 0 ORDER BY timestamp DESC LIMIT 1", $nid));
Dries's avatar
 
Dries committed
282 283 284
  return ($value) ? format_date($value->timestamp, "small") : "&nbsp;";
}

Dries's avatar
 
Dries committed
285 286 287 288 289 290 291 292 293 294 295 296 297 298 299 300 301 302 303 304 305 306 307 308 309 310 311 312 313 314 315 316 317 318 319 320 321 322 323 324 325 326 327 328 329 330 331 332 333 334 335 336 337 338 339 340 341 342 343 344 345 346 347 348 349 350 351 352 353 354 355 356 357 358 359 360 361 362 363 364 365 366 367 368 369 370 371 372 373 374 375 376 377 378 379 380 381 382 383 384 385 386 387 388 389 390 391 392 393 394 395 396 397 398 399 400 401 402 403 404 405 406 407 408 409 410 411 412 413 414 415 416 417 418 419 420 421 422 423 424 425 426 427 428 429 430 431 432 433 434 435 436 437 438 439 440 441 442 443 444 445 446 447 448 449 450 451 452 453
function _forum_last_reply($nid) {
  $value = db_fetch_object(db_query("SELECT c.timestamp, u.name, u.uid FROM comments c LEFT JOIN users u ON c.uid = u.uid WHERE c.nid = '%d' AND c.status = 0 ORDER BY c.timestamp DESC LIMIT 1", $nid));
  return $value;
}

function _forum_format($topic) {
  if ($topic) {
    return format_date($topic->timestamp, "small")."<br>".t("by")." ". format_name($topic);
  }
  else {
    return message_na();
  }
}

function forum_get_forums($tid = 0) {
  global $user;

  if (!$tid) {
    $tid = 0;
  }

  if (variable_get("forum_cache", 0)) {
    $forums = unserialize(cache_get("forum:$tid"));
  }

  if (!$forums) {
    taxonomy_get_tree(variable_get("forum_nav_vocabulary", ""), $_forums, $tid);
    $n = 0;
    foreach ($_forums as $forum) {
      if (in_array($forum->tid, variable_get("forum_containers", array()))) {
        $forum->container = 1;
      }
      else {
        $forum->num_topics = _forum_num_topics($forum->tid);
        $forum->num_posts = _forum_num_replies($forum->tid) + $forum->num_topics;
        $forum->last_post = _forum_last_post($forum->tid);
      }
      $forums[$forum->tid] = $forum;
      $n++;
    }

    if (variable_get("forum_cache", 0)) {
      cache_set("forum:$tid", serialize($forums), time()+60*10);
    }
  }

  if ($user->uid && $forums) {
    foreach (_forum_topics_read($user->uid) as $tid => $old) {
      if ($forums[$tid]) {
        $forums[$tid]->old_topics = $old;
      }
    }
  }

  return $forums;
}

function forum_get_parents($tid) {
  if ($tid) {
    $parents[] = taxonomy_get_term($tid);
  }
  $n = 0;
  while ($parent = taxonomy_get_parents($parents[$n]->tid)) {
    $parents = array_merge($parents, $parent);
    $n++;
  }
  return $parents;
}

function _forum_num_topics($term) {
  $value = db_fetch_object(db_query("SELECT COUNT(n.nid) AS count FROM node n, term_node r, forum f WHERE r.tid = '%d' AND n.nid = r.nid AND n.nid = f.nid AND n.status = 1 AND n.type = 'forum' AND f.shadow = 0", $term));
  return ($value) ? $value->count : 0;
}

function _forum_num_replies($term) {
  $value = db_fetch_object(db_query("SELECT COUNT(*) AS count FROM comments c, term_node r, node n WHERE r.tid = '%d' AND n.nid = r.nid AND n.nid = c.nid AND n.status = 1 AND c.status = 0 AND n.type = 'forum'", $term));
  return ($value) ? $value->count : 0;
}

function _forum_topics_read($uid) {
  $result = db_query("SELECT tid, count(*) AS c FROM history h, term_node r, node n WHERE r.nid = h.nid AND n.nid = h.nid AND n.type = 'forum' AND n.status = 1 AND h.uid = '%d' GROUP BY tid", $uid);

  while ($obj = db_fetch_object($result)) {
    $topics_read[$obj->tid] = $obj->c;
  }

  return $topics_read ? $topics_read : array();
}

function _forum_last_post($term) {
  $topic = db_fetch_object(db_query("SELECT n.nid, n.created AS timestamp, u.name AS name, u.uid AS uid FROM node n, term_node r LEFT JOIN users u ON n.uid = u.uid WHERE r.tid = '%d' AND n.nid = r.nid AND n.type = 'forum' AND n.status = 1 ORDER BY timestamp DESC LIMIT 1", $term));

  $reply = db_fetch_object(db_query("SELECT n.nid, c.timestamp, u.name AS name, u.uid AS uid FROM term_node r, node n LEFT JOIN comments c ON n.nid=c.nid LEFT JOIN users u ON c.uid = u.uid WHERE r.tid = '%d' AND n.nid = r.nid AND n.type = 'forum' AND n.status = 1 AND c.status = 0 ORDER BY c.timestamp DESC LIMIT 1", $term));

  $value = ($topic->timestamp > $reply->timestamp) ? $topic : $reply;

  return $value;
}

function forum_get_topics($tid, $sortby, $forum_per_page, $offset) {
  global $user;

  $term = taxonomy_get_term($tid);
  $voc = taxonomy_get_vocabulary($term->vid);

  $sql_sortby = _forum_get_topic_order($sortby);

  $sql = "
    SELECT n.nid, title, users.name AS name, users.uid AS uid, n.created AS timestamp, GREATEST(n.created, MAX(c.timestamp)) AS date_sort, COUNT(c.nid) AS num_comments, icon, n.comment AS comment_mode, shadow FROM node n, term_node r LEFT JOIN users ON n.uid = users.uid LEFT JOIN comments c ON c.nid = n.nid LEFT JOIN forum f ON n.nid = f.nid WHERE n.nid = r.nid AND r.tid = '%d' AND n.status = 1 AND n.type = 'forum' GROUP BY n.nid ORDER BY $sql_sortby";

  $result = db_query($sql, $tid);
  $topic_num = db_num_rows($result);

  $n = 0;
  while ($topic = db_fetch_object($result)) {
    if ($n < $offset) {
      $n++;
      continue;
    }

    $history = _forum_user_last_visit($topic->nid);
    // folder is new if topic is new or there are new comments since last visit
    if ($topic->shadow > 0) {
      $topic->new = 0;
    }
    else {
      if (!$history && $user->uid) {
        $topic->new_replies = 0;
        $topic->new = 1;
      }
      else {
        $comments = db_result(db_query("SELECT COUNT(c.nid) FROM node n LEFT JOIN comments c ON n.nid = c.nid WHERE n.nid = '$topic->nid' AND c.status = 0 AND timestamp > '$history' GROUP BY n.nid"));

        $topic->new_replies = $comments ? $comments : 0;
        if ($topic->new_replies) {
          $topic->new = 1;
        }
        else {
          $topic->new = 0;
        }
      }
    }

    $topic->last_reply = _forum_last_reply($topic->nid);
    $topics[] = $topic;

    $n++;
    if ($n == ($forum_per_page + $offset)) {
      break;
    }
  }

  return array($topics, $topic_num);
}

function _forum_first_new($tid) {
  global $user;
  $result = db_query("SELECT r.nid FROM node n, history h, term_node r WHERE n.type = 'forum' AND n.status = 1 AND h.nid = n.nid AND r.nid = h.nid AND r.tid = '%d' AND h.uid = '%d'   ", $tid, $user->uid);
  while ($r = db_fetch_object($result)) {
    $read[] = $r->nid;
  }

  if ($read) {
    $nid = db_result(db_query("SELECT r.nid AS c FROM node n LEFT JOIN term_node r ON r.nid = n.nid WHERE n.type = 'forum' AND n.status = 1 AND r.tid = '%d' AND NOT (r.nid IN (".implode(",", $read).")) ORDER BY created LIMIT 1", $tid));
  }

  return $nid ? $nid : 0;
}

Dries's avatar
 
Dries committed
454
function forum_page() {
Dries's avatar
 
Dries committed
455
  global $theme, $tid, $sortby, $forum_per_page, $offset, $op, $user;
Dries's avatar
 
Dries committed
456 457

  if (user_access("access content")) {
Dries's avatar
 
Dries committed
458 459 460
    if ($op == "Update settings") {
      $user = user_save($user, array("sortby" => $sortby, "forum_per_page" => $forum_per_page));
    }
Dries's avatar
 
Dries committed
461

Dries's avatar
 
Dries committed
462 463 464 465
    if ($op == "first_new") {
      if ($nid = _forum_first_new($tid)) {
        drupal_goto(drupal_url(array("id" => $nid), "node"));
      }
Dries's avatar
 
Dries committed
466 467
    }

Dries's avatar
 
Dries committed
468 469 470 471 472 473 474 475 476 477 478 479 480 481 482 483 484
    if (empty($sortby)) {
      $sortby = isset($user->sortby) ? $user->sortby : variable_get("forum_order",1);
    }
    if (empty($forum_per_page)) {
      $forum_per_page = isset($user->forum_per_page) ? $user->forum_per_page : variable_get("forum_per_page", 25);
    }
    if (empty($offset)) {
      $offset = 0;
    }

    $forums = forum_get_forums($tid);
    $parents = forum_get_parents($tid);
    if ($tid && !in_array($tid, variable_get("forum_containers", array()))) {
      list($topics, $topic_num) = forum_get_topics($tid, $sortby, $forum_per_page, $offset);
    }

    _forum_theme_invoke("forum_render", $forums, $topics, $topic_num, $parents, $tid, $sortby, $forum_per_page, $offset);
Dries's avatar
 
Dries committed
485 486 487 488 489 490 491 492
  }
  else {
    $theme->header();
    $theme->box(t("Access denied"), message_access());
    $theme->footer();
  }
}

Dries's avatar
 
Dries committed
493 494 495 496 497 498 499 500 501 502 503 504 505 506 507 508 509 510 511 512 513 514 515 516 517 518 519 520 521 522 523 524 525 526 527 528 529 530 531 532 533 534 535 536 537 538 539 540 541 542 543 544 545 546 547 548 549 550 551 552 553 554 555 556 557 558 559 560 561 562 563 564 565 566 567 568 569 570 571 572 573 574 575 576 577 578 579 580 581 582 583 584 585 586 587 588 589 590 591 592 593 594 595 596 597 598 599 600 601 602 603 604 605 606 607 608 609 610 611 612 613 614 615 616 617 618 619 620 621 622 623 624 625 626 627 628 629 630 631 632 633 634 635 636 637 638 639 640 641 642 643 644 645 646 647 648 649 650 651 652 653 654 655 656 657 658 659 660 661 662 663 664 665 666 667 668 669 670 671 672 673 674 675 676 677 678 679 680 681 682 683 684 685 686 687 688 689 690 691 692 693 694 695 696 697 698 699 700 701 702 703 704 705 706 707 708 709 710 711 712 713 714 715 716 717 718 719 720 721 722 723 724 725 726 727 728 729 730 731 732 733 734 735 736 737 738
/**
*** render functions
**/

function forum_render($forums, $topics, $topic_num, $parents, $tid, $sortby, $forum_per_page, $offset) {
  // forum list, topics list, topic browser and "add new topic" link
  global $theme;

  $output .= _forum_theme_invoke("forum_forum_list", $forums, $parents, $tid);
  if ($tid && !in_array($tid, variable_get("forum_containers", array()))) {
    $output .= _forum_theme_invoke("forum_topic_list", $topics, $topic_num, $sortby, $forum_per_page, $offset);
  }

  $theme->header();
  $theme->box(t("Discussion forum"), $output);
  if ($tid && !in_array($tid, variable_get("forum_containers", array()))) {
    $theme->box(t("Control panel"), _forum_theme_invoke("forum_topic_browser", $sortby, $forum_per_page, $offset));
  }
  $theme->footer();
}

function forum_forum_list($forums, $parents, $tid) {
  global $user;
  if ($parents) {
    foreach($parents as $p) {
      if ($tid != $p->tid) {
        $t[] = lm($p->name, array("mod" => "forum", "tid" => $p->tid));
      }
      else {
        $t[] = $p->name;
      }
    }
  }
  $t[] = lm(t("forum"), array("mod" => "forum"));

  $output .= "<table border=\"0\" width=\"100%\">\n";
  $output .= " <tr><th colspan=\"3\" align=\"left\">".implode(" : ", array_reverse($t)) ."</th>";
  if ($forums) {
    $output .= "<th>". t("topics") ."</th><th>". t("posts") ."</th><th>". t("last post") ."</th></tr>";


    foreach ($forums as $forum) {
      if ($forum->container) {
        $output .= " <tr><td colspan=\"5\">".lm(check_output($forum->name), array("mod" => "forum", "tid" => $forum->tid))."<br><small>". ($forum->description ? check_output($forum->description, 1) : "") ."</small></td></tr>";
      } else {
        if ($user->uid) $new_topics = $forum->num_topics - $forum->old_topics;
        $icon = _forum_get_folder_icon($new_topics);
        $output .= " <tr><td>&nbsp;</td><td>$icon</td>";
        $output .= "<td><table><tr><td width=\"".($forum->depth*20)."\">&nbsp;</td><td>".lm(check_output($forum->name), array("mod" => "forum", "tid" => $forum->tid))."<br><small>". check_output($forum->description, 1);

        $links = array();
        if ($forum->last_post) {
          $links[] = l(t("last topic"), array("nid" => $forum->last_post->nid));
        }
        if ($new_topics) {
          $links[] = lm(t("first new topic"), array("mod" => "forum", "op" => "first_new", "tid" => $forum->tid));
        }

        if ($links) {
          $output .= "<br>(".implode(", ", $links).")";
        }

        $output .= "</small></td></tr></table></td>";
        $output .= "<td align=\"center\">".$forum->num_topics.($new_topics ? "<br>(".t("%a new", array("%a" => $new_topics)).")" : "")."</td><td align=\"center\">".$forum->num_posts."</td><td align=\"center\">"._forum_format($forum->last_post)."</td></tr>";
      }
    }
  }
  $output .= "</table>\n";

  return $output;
}

function forum_topic_browser() {
  global $tid, $sortby, $forum_per_page, $offset;

  if (empty($sortby)) {
    $sortby = variable_get("forum_order",1);
  }
  if (empty($forum_per_page)) {
    $forum_per_page = variable_get("forum_per_page", 25);
  }

  $forum_per_page_options = array(10, 25, 50, 75, 100);
  foreach ($forum_per_page_options as $value) {
    $options .= " <option value=\"$value\"". ($forum_per_page == $value ? " selected=\"selected\"" : "") .">".t("%a topics per page", array("%a" => $value))."</option>\n";
  }

  $output .= "<select name=\"forum_per_page\">$options</select>\n";

  $options = "";
  $sortby_options = array(1 => t("Date - newest first"), 2 => t("Date - oldest first"), 3 => t("Posts - most active first"), 4=> t("Posts - least active first"));
  foreach ($sortby_options as $key => $value) {
    $options .= " <option value=\"$key\"". ($sortby == $key ? " selected=\"selected\"" : "") .">$value</option>\n";
  }

  $output .= "\n<select name=\"sortby\">$options</select>\n";
  $output .= form_hidden("tid", $tid);
  $output .= form_submit(t("Update settings"));
  return form(form_item(t("Topic viewing options"), $output, t("Select your preferred way to display the topics and click 'Update settings'.")));
}

function forum_topic_list($topics, $num_topics, $sortby, $forum_per_page, $offset) {
  global $theme, $id, $status, $tid, $user;

  $output .= "<div align=\"center\"><small>(".t("%a topics, %b topics per page, page %c of %d", array("%a" => $num_topics, "%b" => $forum_per_page, "%c" => ceil(($offset + 1)/$forum_per_page), "%d" => ceil($num_topics/$forum_per_page))).")</small></div>";

  if ($topics) {
    $output .= "<table border=\"0\" width=\"100%\">\n";
    $output .= " <tr><th>&nbsp;</th><th>&nbsp;</th><th>". t("topic") ."</th><th>". t("replies") ."</th><th>". t("posted") ."</th><th>". t("last reply") ."</th></tr>";

    foreach ($topics as $topic) {
      // folder is new if topic is new or there are new comments since last visit
      if ($topic->shadow) {
        $output .= "
          <tr>
            <td>"._forum_get_folder_icon($topic->new, $topic->num_comments, $topic->comment_mode)."</td>
            <td>"._forum_get_icon($topic)."</td>
            <td>". check_output($topic->title) ."</td>
            <td align=\"center\" colspan=\"3\">".lm(t("This topic has been moved"), array("mod" => "forum", "tid" => $topic->shadow))."</td>
          </tr>";
      }
      else {
        $output .= "
          <tr>
            <td>"._forum_get_folder_icon($topic->new, $topic->num_comments, $topic->comment_mode)."</td>
            <td>"._forum_get_icon($topic)."</td>
            <td>".l(check_output($topic->title), array("id" => $topic->nid))."</td>
            <td align=\"center\">".$topic->num_comments.($topic->new_replies ? " (".t("%a new", array("%a" => $topic->new_replies)).")" : "")."</td>
            <td align=\"center\">"._forum_format($topic)."</td>
            <td align=\"center\">"._forum_format($topic->last_reply)."</td>
          </tr>";
      }
    }

    $output .= "</table></blockquote>\n";
  }

  $output .= "<table width=\"100%\" border=\"0\" cellspacing=\"0\" cellpadding=\"0\"><tr>";

  if ($offset > 0) {
    $output .= "<td width=\"33%\"><div align=\"left\"><h4>".lm(t("Previous topics"), array("mod" => "forum", "tid" => $tid, "offset" => ($offset-$forum_per_page)))."</h4></div></td>";
  }
  else {
    $output .= "<td width=\"33%\">&nbsp;</td>";
  }

  $output .= "<td width=\"33%\"><div align=\"center\"><h4>".lm(t("Start new topic"), array("mod" => "node", "op" => "add", "type" => "forum", "tid" => $tid))."</h4></div></td>";

  if (count($topics) >= $forum_per_page) {
    $output .= "<td width=\"33%\"><div align=\"right\"><h4>".lm(t("Next topics"), array("mod" => "forum", "tid" => $tid, "offset" => ($offset+$forum_per_page)))."</h4></div></td>";
  }
  else {
    $output .= "<td width=\"33%\">&nbsp;</td>";
  }

  $output .= "</tr></table>";

  return $output;
}


function _forum_get_icon($node) {
  if (variable_get("forum_topic_icon_path", "images/topics/") && $node->icon) {
    return "<img src=\"".variable_get("forum_topic_icon_path", "images/forum/topics/"). check_output($node->icon)."\">";
  }
  else {
    return "&nbsp;";
  }
}

function _forum_get_folder_icon($new_posts, $num_posts = 0, $comment_mode = 0) {
  // "folder" icon because it's generally rendered as a folder
  global $theme;

  $base_path = variable_get("forum_folder_icon_path", "images/forum/folder");
  if ($base_path) {
    if ($num_posts > variable_get("forum_hot_topic", 15)) {
      $icon = $new_posts ? "hot_new" : "hot";
    }
    else {
      $icon = $new_posts ? "new" : "default";
    }

    if ($comment_mode == 1) {
      $icon = "closed";
    }

    if ($theme->bbs_icons) {
      $file = $theme->bbs_icons[$icon];
    }
    else {
      // default
      $file = $base_path."/".$icon.".gif";
    }

    return "<img src=\"$file\">";
  }
  else {
    return "&nbsp;";
  }
}

function _forum_user_last_visit($nid) {
  global $user;
  static $history;
  if (!$history) {
    $result = db_query("SELECT nid, timestamp FROM history WHERE uid = '%d'", $user->uid);
    while ($t = db_fetch_object($result)) {
      $history[$t->nid] = $t->timestamp;
    }
  }
  return $history[$nid] ? $history[$nid] : 0;
}

// this will go away as soon as theme_invoke is committed
function _forum_theme_invoke() {
  global $theme;
  $args = func_get_args();
  $function = array_shift($args);

  if (method_exists($theme, $function)) {
    return call_user_method_array($function, $theme, $args);
  }
  else {
    return call_user_func_array($function, $args);
  }
}

function _forum_get_topic_order($sortby) {
  switch ($sortby) {
    case 1:
      return "date_sort DESC";
      break;
    case 2:
      return "date_sort ASC";
      break;
    case 3:
      return "num_comments DESC";
      break;
    case 4:
      return "num_comments ASC";
      break;
  }
}

?>