forum.module

<?php
// $Id$

function forum_system($field){
  $system["description"] = t("Allows threaded discussions about general topics.");
  return $system[$field];
}

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;
  }
}

function forum_save($op, $node) {

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

  if ($op == "create") {
    return array("body" => filter($node->body), "teaser" => filter($node->teaser));
  }

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

  if ($op == "update") {
    return array("body" => filter($node->body), "teaser" => filter($node->teaser));
  }
}

function forum_link($type) {
  if ($type == "page" && user_access("access content")) {
    $links[] = lm(t("forum"), array("mod" => "forum"), "", array("title" => t("Read and participate in the discussion forums.")));
  }

  if ($type == "menu.create" && user_access("administer nodes")) {
    $links[] = lm(t("create forum"), array("mod" => "node", "op" => "add", "type" => "forum"), "", array("title" => t("Add a new discussion forum.")));
  }

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

function forum_view($node) {
  global $theme;
  $output .= "<p>". lm(t("Forum"), array("mod" => "forum")) ." / <b>". l(check_output($node->title), array("id" => $node->nid)) ."</b>:</p><p>". check_output($node->body) ."</p>";
  $output .= "<p>". $theme->links(link_node($node, $main)) ."</p>";

  $theme->box(t("Discussion forum"), $output);
}

function forum_form(&$node, &$help, &$error) {

  if (function_exists("taxonomy_node_form")) {
    $output = implode("", taxonomy_node_form("forum", $node));
  }

  $output .= form_textarea(t("Body"), "body", $node->body, 60, 10);

  return $output;
}


function forum_num_comments($nid) {
  $value = db_fetch_object(db_query("SELECT COUNT(cid) AS count FROM comments WHERE nid = '$nid'"));
  return ($value) ? $value->count : 0;
}

function forum_last_comment($nid) {
  $value = db_fetch_object(db_query("SELECT timestamp FROM comments WHERE nid = '$nid' ORDER BY timestamp DESC LIMIT 1"));
  return ($value) ? format_date($value->timestamp, "small") : "&nbsp;";
}

function forum_page() {
  global $theme;

  if (user_access("access content")) {
    $result = db_query("SELECT nid FROM node WHERE type = 'forum' ORDER BY title");

    $output .= "<table border=\"0\" cellspacing=\"4\" cellpadding=\"4\">";
    $output .= " <tr><th>". t("Forum") ."</th><th>". t("Comments") ."</th><th>". t("Last comment") ."</th></tr>";
    while ($node = db_fetch_object($result)) {
      $node = node_load(array("nid" => $node->nid));
      $output .= " <tr><td>". l(check_output($node->title), array("id" => $node->nid)) ."<br /><small>". check_output($node->body, 1) ."</small></td><td align=\"center\">". forum_num_comments($node->nid) ."</td><td align=\"center\">". forum_last_comment($node->nid) ."</td></tr>";
    }
    $output .= "</table>";

    $theme->header();
    $theme->box(t("Discussion forum"), $output);
    $theme->footer();
  }
  else {
    $theme->header();
    $theme->box(t("Access denied"), message_access());
    $theme->footer();
  }
}

?>