<?php

/**

 * WordPress Bookmark Administration API

 *

 * @package WordPress

 * @subpackage Administration

 */

/**

 * {@internal Missing Short Description}}

 *

 * @since unknown

 *

 * @return unknown

 */

function add_link() {

	return edit_link();

}

/**

 * {@internal Missing Short Description}}

 *

 * @since unknown

 *

 * @param unknown_type $link_id

 * @return unknown

 */

function edit_link( $link_id = '' ) {

	if (!current_user_can( 'manage_links' ))

		wp_die( __( 'Cheatin’ uh?' ));

	$_POST['link_url'] = esc_html( $_POST['link_url'] );

	$_POST['link_url'] = esc_url($_POST['link_url']);

	$_POST['link_name'] = esc_html( $_POST['link_name'] );

	$_POST['link_image'] = esc_html( $_POST['link_image'] );

	$_POST['link_rss'] = esc_url($_POST['link_rss']);

	if ( !isset($_POST['link_visible']) || 'N' != $_POST['link_visible'] )

		$_POST['link_visible'] = 'Y';

	if ( !empty( $link_id ) ) {

		$_POST['link_id'] = $link_id;

		return wp_update_link( $_POST);

	} else {

		return wp_insert_link( $_POST);

	}

}

/**

 * {@internal Missing Short Description}}

 *

 * @since unknown

 *

 * @return unknown

 */

function get_default_link_to_edit() {

	if ( isset( $_GET['linkurl'] ) )

		$link->link_url = esc_url( $_GET['linkurl']);

	else

		$link->link_url = '';

	if ( isset( $_GET['name'] ) )

		$link->link_name = esc_attr( $_GET['name']);

	else

		$link->link_name = '';

	$link->link_visible = 'Y';

	return $link;

}

/**

 * {@internal Missing Short Description}}

 *

 * @since unknown

 *

 * @param unknown_type $link_id

 * @return unknown

 */

function wp_delete_link( $link_id ) {

	global $wpdb;

	do_action( 'delete_link', $link_id );

	wp_delete_object_term_relationships( $link_id, 'link_category' );

	$wpdb->query( $wpdb->prepare( "DELETE FROM $wpdb->links WHERE link_id = %d", $link_id ) );

	do_action( 'deleted_link', $link_id );

	clean_bookmark_cache( $link_id );

	return true;

}

/**

 * {@internal Missing Short Description}}

 *

 * @since unknown

 *

 * @param unknown_type $link_id

 * @return unknown

 */

function wp_get_link_cats( $link_id = 0 ) {

	$cats = wp_get_object_terms( $link_id, 'link_category', 'fields=ids' );

	return array_unique( $cats );

}

/**

 * {@internal Missing Short Description}}

 *

 * @since unknown

 *

 * @param unknown_type $link_id

 * @return unknown

 */

function get_link_to_edit( $link_id ) {

	return get_bookmark( $link_id, OBJECT, 'edit' );

}

/**

 * {@internal Missing Short Description}}

 *

 * @since unknown

 *

 * @param unknown_type $linkdata

 * @return unknown

 */

function wp_insert_link( $linkdata, $wp_error = false ) {

	global $wpdb, $current_user;

	$defaults = array( 'link_id' => 0, 'link_name' => '', 'link_url' => '', 'link_rating' => 0 );

	$linkdata = wp_parse_args( $linkdata, $defaults );

	$linkdata = sanitize_bookmark( $linkdata, 'db' );

	extract( stripslashes_deep( $linkdata ), EXTR_SKIP );

	$update = false;

	if ( !empty( $link_id ) )

		$update = true;

	if ( trim( $link_name ) == '' ) {

		if ( trim( $link_url ) != '' ) {

			$link_name = $link_url;

		} else {

			return 0;

		}

	}

	if ( trim( $link_url ) == '' )

		return 0;

	if ( empty( $link_rating ) )

		$link_rating = 0;

	if ( empty( $link_image ) )

		$link_image = '';

	if ( empty( $link_target ) )

		$link_target = '';

	if ( empty( $link_visible ) )

		$link_visible = 'Y';

	if ( empty( $link_owner ) )

		$link_owner = $current_user->id;

	if ( empty( $link_notes ) )

		$link_notes = '';

	if ( empty( $link_description ) )

		$link_description = '';

	if ( empty( $link_rss ) )

		$link_rss = '';

	if ( empty( $link_rel ) )

		$link_rel = '';

	// Make sure we set a valid category

	if ( ! isset( $link_category ) ||0 == count( $link_category ) || !is_array( $link_category ) ) {

		$link_category = array( get_option( 'default_link_category' ) );

	}

	if ( $update ) {

		if ( false === $wpdb->query( $wpdb->prepare( "UPDATE $wpdb->links SET link_url = %s,

			link_name = %s, link_image = %s, link_target = %s,

			link_visible = %s, link_description = %s, link_rating = %s,

			link_rel = %s, link_notes = %s, link_rss = %s

			WHERE link_id = %s", $link_url, $link_name, $link_image, $link_target, $link_visible, $link_description, $link_rating, $link_rel, $link_notes, $link_rss, $link_id ) ) ) {

			if ( $wp_error )

				return new WP_Error( 'db_update_error', __( 'Could not update link in the database' ), $wpdb->last_error );

			else

				return 0;

		}

	} else {

		if ( false === $wpdb->query( $wpdb->prepare( "INSERT INTO $wpdb->links (link_url, link_name, link_image, link_target, link_description, link_visible, link_owner, link_rating, link_rel, link_notes, link_rss) VALUES(%s, %s, %s, %s, %s, %s, %s, %s, %s, %s, %s)",

		$link_url,$link_name, $link_image, $link_target, $link_description, $link_visible, $link_owner, $link_rating, $link_rel, $link_notes, $link_rss ) ) ) {

			if ( $wp_error )

				return new WP_Error( 'db_insert_error', __( 'Could not insert link into the database' ), $wpdb->last_error );

			else

				return 0;

		}

		$link_id = (int) $wpdb->insert_id;

	}

	wp_set_link_cats( $link_id, $link_category );

	if ( $update )

		do_action( 'edit_link', $link_id );

	else

		do_action( 'add_link', $link_id );

	clean_bookmark_cache( $link_id );

	return $link_id;

}

/**

 * {@internal Missing Short Description}}

 *

 * @since unknown

 *

 * @param unknown_type $link_id

 * @param unknown_type $link_categories

 */

function wp_set_link_cats( $link_id = 0, $link_categories = array() ) {

	// If $link_categories isn't already an array, make it one:

	if ( !is_array( $link_categories ) || 0 == count( $link_categories ) )

		$link_categories = array( get_option( 'default_link_category' ) );

	$link_categories = array_map( 'intval', $link_categories );

	$link_categories = array_unique( $link_categories );

	wp_set_object_terms( $link_id, $link_categories, 'link_category' );

	clean_bookmark_cache( $link_id );

}	// wp_set_link_cats()

/**

 * {@internal Missing Short Description}}

 *

 * @since unknown

 *

 * @param unknown_type $linkdata

 * @return unknown

 */

function wp_update_link( $linkdata ) {

	$link_id = (int) $linkdata['link_id'];

	$link = get_link( $link_id, ARRAY_A );

	// Escape data pulled from DB.

	$link = add_magic_quotes( $link );

	// Passed link category list overwrites existing category list if not empty.

	if ( isset( $linkdata['link_category'] ) && is_array( $linkdata['link_category'] )

			 && 0 != count( $linkdata['link_category'] ) )

		$link_cats = $linkdata['link_category'];

	else

		$link_cats = $link['link_category'];

	// Merge old and new fields with new fields overwriting old ones.

	$linkdata = array_merge( $link, $linkdata );

	$linkdata['link_category'] = $link_cats;

	return wp_insert_link( $linkdata );

}

?>