get_bookmarks

Source code

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' => '', 'search' => ''

	);



	$r = wp_parse_args( $args, $defaults );

	extract( $r, EXTR_SKIP );



	$cache = array();

	$key = md5( serialize( $r ) );

	if ( $cache = wp_cache_get( 'get_bookmarks', 'bookmark' ) ) {

		if ( is_array($cache) && isset( $cache[ $key ] ) )

			return apply_filters('get_bookmarks', $cache[ $key ], $r );

	}



	if ( !is_array($cache) )

		$cache = array();



	$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;

		} else {

			$cache[ $key ] = array();

			wp_cache_set( 'get_bookmarks', $cache, 'bookmark' );

			return apply_filters( 'get_bookmarks', array(), $r );

		}

	}



	if ( ! empty($search) ) {

		$search = like_escape($search);

		$search = " AND ( (link_url LIKE '%$search%') OR (link_name LIKE '%$search%') OR (link_description LIKE '%$search%') ) ";

	}



	$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 = " INNER JOIN $wpdb->term_relationships AS tr ON ($wpdb->links.link_id = tr.object_id) INNER JOIN $wpdb->term_taxonomy as tt ON tt.term_taxonomy_id = tr.term_taxonomy_id";

	}



	if ( $show_updated && 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 = '';

	}



	$get_updated = ( $show_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;

		case 'link_id':

			$orderby = "$wpdb->links.link_id";

			break;

		default:

			$orderparams = array();

			foreach ( explode(',', $orderby) as $ordparam ) {

				$ordparam = trim($ordparam);

				$keys = array( 'link_id', 'link_name', 'link_url', 'link_visible', 'link_rating', 'link_owner', 'link_updated', 'link_notes' );

				if ( in_array( 'link_' . $ordparam, $keys ) )

					$orderparams[] = 'link_' . $ordparam;

				elseif ( in_array( $ordparam, $keys ) )

					$orderparams[] = $ordparam;

			}

			$orderby = implode(',', $orderparams);

	}



	if ( empty( $orderby ) )

		$orderby = 'link_name';



	$order = strtoupper( $order );

	if ( '' !== $order && !in_array( $order, array( 'ASC', 'DESC' ) ) )

		$order = 'ASC';



	$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 $search";

	$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);

}