WordPress/wp-includes/links.php

332 lines
9.2 KiB
PHP
Raw Normal View History

<?php
/** function wp_get_links()
** Gets the links associated with category n.
** Parameters:
** category (no default) - The category to use.
** or:
** a query string
**/
function wp_get_links($args = '') {
global $wpdb;
if ( empty($args) )
return;
if ( false === strpos($args, '=') ) {
$cat_id = $args;
$args = add_query_arg('category', $cat_id, $args);
}
parse_str($args);
if (! isset($category)) $category = -1;
if (! isset($before)) $before = '';
if (! isset($after)) $after = '<br />';
if (! isset($between)) $between = ' ';
if (! isset($show_images)) $show_images = true;
if (! isset($orderby)) $orderby = 'name';
if (! isset($show_description)) $show_description = true;
if (! isset($show_rating)) $show_rating = false;
if (! isset($limit)) $limit = -1;
if (! isset($show_updated)) $show_updated = 1;
if (! isset($echo)) $echo = true;
return get_links($category, $before, $after, $between, $show_images, $orderby, $show_description, $show_rating, $limit, $show_updated, $echo);
} // end wp_get_links
/** function get_links()
** Gets the links associated with category n.
** Parameters:
** category (default -1) - The category to use. If no category supplied
** uses all
** before (default '') - the html to output before the link
** after (default '<br />') - the html to output after the link
** between (default ' ') - the html to output between the link/image
** and its description. Not used if no image or show_images == true
** show_images (default true) - whether to show images (if defined).
** orderby (default 'id') - the order to output the links. E.g. 'id', 'name',
** 'url', 'description', or 'rating'. Or maybe owner. If you start the
** name with an underscore the order will be reversed.
** You can also specify 'rand' as the order which will return links in a
** random order.
** show_description (default true) - whether to show the description if
** show_images=false/not defined .
** show_rating (default false) - show rating stars/chars
** limit (default -1) - Limit to X entries. If not specified, all entries
** are shown.
** show_updated (default 0) - whether to show last updated timestamp
** echo (default true) - whether to echo the results, or return them instead
*/
function get_links($category = -1,
$before = '',
$after = '<br />',
$between = ' ',
$show_images = true,
$orderby = 'name',
$show_description = true,
$show_rating = false,
$limit = -1,
$show_updated = 1,
$echo = true) {
global $wpdb;
$results = get_linkz("category=$category&orderby=$orderby&show_updated=$show_updated&limit=$limit");
if (!$results) {
return;
}
$output = '';
foreach ($results as $row) {
if (!isset($row->recently_updated)) $row->recently_updated = false;
$output .= $before;
if ($show_updated && $row->recently_updated) {
$output .= get_settings('links_recently_updated_prepend');
}
$the_link = '#';
if (!empty($row->link_url))
$the_link = wp_specialchars($row->link_url);
$rel = $row->link_rel;
if ($rel != '') {
$rel = ' rel="' . $rel . '"';
}
$desc = wp_specialchars($row->link_description, ENT_QUOTES);
$name = wp_specialchars($row->link_name, ENT_QUOTES);
$title = $desc;
if ($show_updated) {
if (substr($row->link_updated_f, 0, 2) != '00') {
$title .= ' (Last updated ' . date(get_settings('links_updated_date_format'), $row->link_updated_f + (get_settings('gmt_offset') * 3600)) . ')';
}
}
if ('' != $title) {
$title = ' title="' . $title . '"';
}
$alt = ' alt="' . $name . '"';
$target = $row->link_target;
if ('' != $target) {
$target = ' target="' . $target . '"';
}
$output .= '<a href="' . $the_link . '"' . $rel . $title . $target. '>';
if (($row->link_image != null) && $show_images) {
if (strstr($row->link_image, 'http'))
$output .= "<img src=\"$row->link_image\" $alt $title />";
else // If it's a relative path
$output .= "<img src=\"" . get_settings('siteurl') . "$row->link_image\" $alt $title />";
} else {
$output .= $name;
}
$output .= '</a>';
if ($show_updated && $row->recently_updated) {
$output .= get_settings('links_recently_updated_append');
}
if ($show_description && ($desc != '')) {
$output .= $between . $desc;
}
$output .= "$after\n";
} // end while
if ($echo) {
echo $output;
} else {
return $output;
}
}
function get_linkrating($link) {
return apply_filters('link_rating', $link->link_rating);
}
/** function get_linkcatname()
** Gets the name of category n.
** Parameters: id (default 0) - The category to get. If no category supplied
** uses 0
*/
function get_linkcatname($id = 0) {
if ( empty($id) )
return '';
$cats = wp_get_link_cats($id);
if ( empty($cats) || ! is_array($cats) )
return '';
$cat_id = $cats[0]; // Take the first cat.
$cat = get_category($cat_id);
return $cat->cat_name;
}
/** function links_popup_script()
** This function contributed by Fullo -- http://sprite.csr.unibo.it/fullo/
** Show the link to the links popup and the number of links
** Parameters:
** text (default Links) - the text of the link
** width (default 400) - the width of the popup window
** height (default 400) - the height of the popup window
** file (default linkspopup.php) - the page to open in the popup window
** count (default true) - the number of links in the db
*/
function links_popup_script($text = 'Links', $width=400, $height=400,
$file='links.all.php', $count = true) {
if ($count == true) {
$counts = $wpdb->get_var("SELECT count(*) FROM $wpdb->links");
}
$javascript = "<a href=\"#\" " .
" onclick=\"javascript:window.open('$file?popup=1', '_blank', " .
"'width=$width,height=$height,scrollbars=yes,status=no'); " .
" return false\">";
$javascript .= $text;
if ($count == true) {
$javascript .= " ($counts)";
}
$javascript .="</a>\n\n";
echo $javascript;
}
/*
* function get_links_list()
*
* added by Dougal
*
* Output a list of all links, listed by category, using the
* settings in $wpdb->linkcategories and output it as a nested
* HTML unordered list.
*
* Parameters:
* order (default 'name') - Sort link categories by 'name' or 'id'
* hide_if_empty (default true) - Supress listing empty link categories
*/
function get_links_list($order = 'name', $hide_if_empty = 'obsolete') {
$order = strtolower($order);
// Handle link category sorting
$direction = 'ASC';
if (substr($order,0,1) == '_') {
$direction = 'DESC';
$order = substr($order,1);
}
if (!isset($direction)) $direction = '';
$cats = get_categories("type=link&orderby=$order&order=$direction");
// Display each category
if ($cats) {
foreach ($cats as $cat) {
// Handle each category.
// Display the category name
echo ' <li id="linkcat-' . $cat->cat_ID . '"><h2>' . $cat->cat_name . "</h2>\n\t<ul>\n";
// Call get_links() with all the appropriate params
get_links($cat->cat_ID,
'<li>',"</li>","\n");
// Close the last category
echo "\n\t</ul>\n</li>\n";
}
}
}
function get_linkz($args = '') {
global $wpdb;
parse_str($args, $r);
if ( !isset($r['orderby']) )
$r['orderby'] = 'name';
if ( !isset($r['order']) )
$r['order'] = 'ASC';
if ( !isset($r['limit']) )
$r['limit'] = -1;
if ( !isset($r['category']) )
$r['category'] = -1;
if ( !isset($r['category_name']) )
$r['category_name'] = '';
if ( !isset($r['hide_invisible']) )
$r['hide_invisible'] = 1;
if ( !isset($r['show_updated']) )
$r['show_updated'] = 0;
$exclusions = '';
if ( !empty($r['exclude']) ) {
$exlinks = preg_split('/[\s,]+/',$r['exclude']);
if ( count($exlinks) ) {
foreach ( $exlinks as $exlink ) {
$exclusions .= ' AND link_id <> ' . intval($exlink) . ' ';
}
}
}
extract($r);
if ( ! empty($category_name) ) {
if ( $cat_id = $wpdb->get_var("SELECT cat_ID FROM $wpdb->categories WHERE cat_name='$category_name' LIMIT 1") )
$category = $cat_id;
}
$category_query = '';
$join = '';
if ( $category != -1 && !empty($category) ) {
$join = " LEFT JOIN $wpdb->link2cat ON ($wpdb->links.link_id = $wpdb->link2cat.link_id) ";
$category_query = " AND category_id = $category ";
}
if (get_settings('links_recently_updated_time')) {
$recently_updated_test = ", IF (DATE_ADD(link_updated, INTERVAL " . get_settings('links_recently_updated_time') . " MINUTE) >= NOW(), 1,0) as recently_updated ";
} else {
$recently_updated_test = '';
}
if ($show_updated) {
$get_updated = ", UNIX_TIMESTAMP(link_updated) AS link_updated_f ";
}
$orderby = strtolower($r['orderby']);
$length = '';
switch ($orderby) {
case 'length':
$length = ", CHAR_LENGTH(link_name) AS length";
break;
case 'rand':
$orderby = 'rand()';
break;
default:
$orderby = "link_" . $orderby;
}
if ( 'link_id' == $orderby )
$orderby = "$wpdb->links.link_id";
$visible = '';
if ( $hide_invisible )
$visible = "AND link_visible = 'Y'";
$query = "SELECT * $length $recently_updated_test $get_updated FROM $wpdb->links $join WHERE 1=1 $visible $category_query";
$query .= " ORDER BY $orderby $order";
if ($limit != -1)
$query .= " LIMIT $limit";
return $wpdb->get_results($query);
}
?>