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<?php
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// $Id: custom_links.module,v 1.5 2008/01/27 09:16:01 eaton Exp $
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/**
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* Implementation of hook_menu().
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*/
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function custom_links_menu() {
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$items = array();
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$items['admin/build/custom_links'] = array(
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'title' => 'Custom links',
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'description' => 'Add custom links to specific content types.',
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'page callback' => 'custom_links_page',
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'access callback' => 'user_access',
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'access arguments' => array('administer custom links'),
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'file' => 'custom_links.admin.inc',
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);
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$items['admin/build/custom_links/add'] = array(
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'title' => 'Add custom breadcrumb',
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'type' => MENU_CALLBACK,
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'page callback' => 'drupal_get_form',
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'page arguments' => array('custom_links_form'),
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'access callback' => 'user_access',
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'access arguments' => array('administer custom links'),
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'file' => 'custom_links.admin.inc',
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);
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$items['admin/build/custom_links/edit'] = array(
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'title' => 'Edit custom breadcrumb',
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'type' => MENU_CALLBACK,
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'page callback' => 'drupal_get_form',
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'page arguments' => array('custom_links_form'),
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'access callback' => 'user_access',
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'access arguments' => array('administer custom links'),
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'file' => 'custom_links.admin.inc',
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);
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return $items;
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}
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function custom_links_theme() {
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$items = array();
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$items['custom_links_block'] = array(
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'arguments' => array('links' => array()),
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);
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return $items;
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}
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function custom_links_link($type, $node = NULL, $teaser = FALSE) {
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if ($type == 'node') {
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return _custom_links_build_links($node, $teaser);
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}
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}
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function custom_links_perm() {
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return array('administer custom links');
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}
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/**
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* Implementation of hook_block().
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*
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* Generates a block with links for the current node.
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*/
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function custom_links_block($op = 'list', $delta = 0) {
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if ($op == 'list') {
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$blocks[0]['info'] = t('Custom node links');
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return $blocks;
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}
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else if ($op == 'view' && arg(0) == 'node' && is_numeric(arg(1))) {
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$node = node_load(arg(1));
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$links = _custom_links_build_links($node, FALSE, TRUE);
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if (count($links)) {
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$block['subject'] = t('Links');
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$block['content'] = theme('custom_links_block', $links);
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return $block;
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}
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}
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}
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function _custom_links_build_links($node, $teaser = FALSE, $block = FALSE) {
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$links = array();
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$custom_links = _custom_links_load_all_links();
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foreach ($custom_links as $link) {
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if (($block && $link->display != 3) || (!$block && $link->display == 3)) {
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continue;
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}
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if (($link->display == 0 && $teaser) || ($link->display == 1 && !$teaser)) {
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continue;
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}
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if ($link->node_type && $node->type != $link->node_type) {
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continue;
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}
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if ($link->viewer_perm && !user_access($link->viewer_perm)) {
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continue;
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}
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if ($link->author_perm) {
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$author = user_load(array('uid' => $node->uid));
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if (!user_access($link->author_perm, $author)) {
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continue;
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}
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}
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$links[$link->link_key]['title'] = $link->title;
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if (!empty($link->path)) {
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$links[$link->link_key]['href'] = $link->path;
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}
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if (!empty($link->query)) {
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$links[$link->link_key]['query'] = $link->query;
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}
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if (!empty($link->fragment)) {
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$links[$link->link_key]['fragment'] = $link->fragment;
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}
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if (module_exists('token')) {
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$links[$link->link_key] = token_replace($links[$link->link_key], 'node', $node);
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}
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$links[$link->link_key]['html'] = $link->check_html;
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}
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return $links;
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}
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function _custom_links_load_link($lid) {
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$sql = 'SELECT * FROM {custom_link} WHERE lid = %d';
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$result = db_query($sql, $lid);
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$link = db_fetch_object($result);
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return $link;
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}
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function _custom_links_load_all_links($refresh = FALSE) {
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static $links;
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if ($refresh || !isset($links)) {
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$sql = 'SELECT * FROM {custom_link}';
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$result = db_query($sql);
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$links = array();
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while ($link = db_fetch_object($result)) {
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$links[] = $link;
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}
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}
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return $links;
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}
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function _custom_links_save_link($link = NULL) {
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if (isset($link->lid)) {
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drupal_write_record('custom_link', $link, 'lid');
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}
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else {
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drupal_write_record('custom_link', $link);
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}
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}
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function _custom_links_delete_link($lid) {
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$sql = 'DELETE FROM {custom_link} WHERE lid = %d';
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db_query($sql, $lid);
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}
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function theme_custom_links_block($links) {
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return theme('links', $links);
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}
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