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<?php
function get_bookmark($bookmark_id, $output = OBJECT, $filter = 'raw') {
global $wpdb;
$bookmark_id = (int) $bookmark_id;
$link = $wpdb->get_row("SELECT * FROM $wpdb->links WHERE link_id = '$bookmark_id' LIMIT 1");
$link->link_category = array_unique( wp_get_object_terms($link_id, 'link_category', 'fields=ids') );
$link = sanitize_bookmark($link, $filter);
if ( $output == OBJECT ) {
return $link;
} elseif ( $output == ARRAY_A ) {
return get_object_vars($link);
} elseif ( $output == ARRAY_N ) {
return array_values(get_object_vars($link));
} else {
return $link;
}
}
function get_bookmark_field( $field, $bookmark, $context = 'display' ) {
$bookmark = (int) $bookmark;
$bookmark = get_bookmark( $bookmark );
if ( is_wp_error($bookmark) )
return $bookmark;
if ( !is_object($bookmark) )
return '';
if ( !isset($bookmark->$field) )
return '';
return sanitize_bookmark_field($field, $bookmark->$field, $bookmark->link_id, $context);
}
// Deprecate
function get_link($bookmark_id, $output = OBJECT) {
return get_bookmark($bookmark_id, $output);
}
function get_bookmarks($args = '') {
global $wpdb;
$defaults = array(
'orderby' => 'name', 'order' => 'ASC',
'limit' => -1, 'category' => '',
'category_name' => '', 'hide_invisible' => 1,
'show_updated' => 0, 'include' => '',
'exclude' => ''
);
$r = wp_parse_args( $args, $defaults );
extract( $r, EXTR_SKIP );
$key = md5( serialize( $r ) );
if ( $cache = wp_cache_get( 'get_bookmarks', 'bookmark' ) )
if ( isset( $cache[ $key ] ) )
return apply_filters('get_bookmarks', $cache[ $key ], $r );
$inclusions = '';
if ( !empty($include) ) {
$exclude = ''; //ignore exclude, category, and category_name params if using include
$category = '';
$category_name = '';
$inclinks = preg_split('/[\s,]+/',$include);
if ( count($inclinks) ) {
foreach ( $inclinks as $inclink ) {
if (empty($inclusions))
$inclusions = ' AND ( link_id = ' . intval($inclink) . ' ';
else
$inclusions .= ' OR link_id = ' . intval($inclink) . ' ';
}
}
}
if (!empty($inclusions))
$inclusions .= ')';
$exclusions = '';
if ( !empty($exclude) ) {
$exlinks = preg_split('/[\s,]+/',$exclude);
if ( count($exlinks) ) {
foreach ( $exlinks as $exlink ) {
if (empty($exclusions))
$exclusions = ' AND ( link_id <> ' . intval($exlink) . ' ';
else
$exclusions .= ' AND link_id <> ' . intval($exlink) . ' ';
}
}
}
if (!empty($exclusions))
$exclusions .= ')';
if ( ! empty($category_name) ) {
if ( $category = get_term_by('name', $category_name, 'link_category') )
$category = $category->term_id;
}
$category_query = '';
$join = '';
if ( !empty($category) ) {
$incategories = preg_split('/[\s,]+/',$category);
if ( count($incategories) ) {
foreach ( $incategories as $incat ) {
if (empty($category_query))
$category_query = ' AND ( tt.term_id = ' . intval($incat) . ' ';
else
$category_query .= ' OR tt.term_id = ' . intval($incat) . ' ';
}
}
}
if (!empty($category_query)) {
$category_query .= ") AND taxonomy = 'link_category'";
$join = " LEFT JOIN $wpdb->term_relationships AS tr ON ($wpdb->links.link_id = tr.object_id) LEFT JOIN $wpdb->term_taxonomy as tt ON tt.term_taxonomy_id = tr.term_taxonomy_id";
}
if (get_option('links_recently_updated_time')) {
$recently_updated_test = ", IF (DATE_ADD(link_updated, INTERVAL " . get_option('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 ";
}
$orderby = strtolower($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 .= " $exclusions $inclusions";
$query .= " ORDER BY $orderby $order";
if ($limit != -1)
$query .= " LIMIT $limit";
$results = $wpdb->get_results($query);
$cache[ $key ] = $results;
wp_cache_set( 'get_bookmarks', $cache, 'bookmark' );
return apply_filters('get_bookmarks', $results, $r);
}
function sanitize_bookmark($bookmark, $context = 'display') {
$fields = array('link_id', 'link_url', 'link_name', 'link_image', 'link_target', 'link_category',
'link_description', 'link_visible', 'link_owner', 'link_rating', 'link_updated',
'link_rel', 'link_notes', 'link_rss', );
$do_object = false;
if ( is_object($bookmark) )
$do_object = true;
foreach ( $fields as $field ) {
if ( $do_object )
$bookmark->$field = sanitize_bookmark_field($field, $bookmark->$field, $bookmark->link_id, $context);
else
$bookmark[$field] = sanitize_bookmark_field($field, $bookmark[$field], $bookmark['link_id'], $context);
}
return $bookmark;
}
function sanitize_bookmark_field($field, $value, $bookmark_id, $context) {
$int_fields = array('link_id', 'link_rating');
if ( in_array($field, $int_fields) )
$value = (int) $value;
$yesno = array('link_visible');
if ( in_array($field, $yesno) )
$value = preg_replace('/[^YNyn]/', '', $value);
if ( 'link_target' == $field ) {
$targets = array('_top', '_blank');
if ( ! in_array($value, $targets) )
$value = '';
}
if ( 'raw' == $context )
return $value;
if ( 'edit' == $context ) {
$format_to_edit = array('link_notes');
$value = apply_filters("edit_$field", $value, $bookmark_id);
if ( in_array($field, $format_to_edit) ) {
$value = format_to_edit($value);
} else {
$value = attribute_escape($value);
}
} else if ( 'db' == $context ) {
$value = apply_filters("pre_$field", $value);
} else {
// Use display filters by default.
$value = apply_filters($field, $value, $bookmark_id, $context);
}
if ( 'attribute' == $context )
$value = attribute_escape($value);
else if ( 'js' == $context )
$value = js_escape($value);
return $value;
}
function delete_get_bookmark_cache() {
wp_cache_delete( 'get_bookmarks', 'bookmark' );
}
add_action( 'add_link', 'delete_get_bookmark_cache' );
add_action( 'edit_link', 'delete_get_bookmark_cache' );
add_action( 'delete_link', 'delete_get_bookmark_cache' );
?>
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