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18bd01985b
Props freewebmentor. Fixes #45059. Built from https://develop.svn.wordpress.org/trunk@45667 git-svn-id: http://core.svn.wordpress.org/trunk@45478 1a063a9b-81f0-0310-95a4-ce76da25c4cd
328 lines
9.3 KiB
PHP
328 lines
9.3 KiB
PHP
<?php
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/**
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* WordPress Bookmark Administration API
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*
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* @package WordPress
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* @subpackage Administration
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*/
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/**
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* Add a link to using values provided in $_POST.
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*
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* @since 2.0.0
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*
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* @return int|WP_Error Value 0 or WP_Error on failure. The link ID on success.
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*/
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function add_link() {
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return edit_link();
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}
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/**
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* Updates or inserts a link using values provided in $_POST.
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*
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* @since 2.0.0
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*
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* @param int $link_id Optional. ID of the link to edit. Default 0.
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* @return int|WP_Error Value 0 or WP_Error on failure. The link ID on success.
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*/
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function edit_link( $link_id = 0 ) {
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if ( ! current_user_can( 'manage_links' ) ) {
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wp_die(
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'<h1>' . __( 'You need a higher level of permission.' ) . '</h1>' .
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'<p>' . __( 'Sorry, you are not allowed to edit the links for this site.' ) . '</p>',
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403
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);
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}
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$_POST['link_url'] = esc_html( $_POST['link_url'] );
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$_POST['link_url'] = esc_url( $_POST['link_url'] );
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$_POST['link_name'] = esc_html( $_POST['link_name'] );
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$_POST['link_image'] = esc_html( $_POST['link_image'] );
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$_POST['link_rss'] = esc_url( $_POST['link_rss'] );
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if ( ! isset( $_POST['link_visible'] ) || 'N' != $_POST['link_visible'] ) {
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$_POST['link_visible'] = 'Y';
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}
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if ( ! empty( $link_id ) ) {
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$_POST['link_id'] = $link_id;
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return wp_update_link( $_POST );
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} else {
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return wp_insert_link( $_POST );
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}
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}
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/**
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* Retrieves the default link for editing.
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*
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* @since 2.0.0
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*
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* @return stdClass Default link object.
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*/
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function get_default_link_to_edit() {
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$link = new stdClass;
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if ( isset( $_GET['linkurl'] ) ) {
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$link->link_url = esc_url( wp_unslash( $_GET['linkurl'] ) );
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} else {
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$link->link_url = '';
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}
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if ( isset( $_GET['name'] ) ) {
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$link->link_name = esc_attr( wp_unslash( $_GET['name'] ) );
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} else {
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$link->link_name = '';
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}
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$link->link_visible = 'Y';
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return $link;
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}
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/**
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* Deletes a specified link from the database.
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*
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* @since 2.0.0
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*
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* @global wpdb $wpdb WordPress database abstraction object.
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*
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* @param int $link_id ID of the link to delete
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* @return true Always true.
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*/
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function wp_delete_link( $link_id ) {
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global $wpdb;
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/**
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* Fires before a link is deleted.
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*
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* @since 2.0.0
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*
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* @param int $link_id ID of the link to delete.
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*/
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do_action( 'delete_link', $link_id );
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wp_delete_object_term_relationships( $link_id, 'link_category' );
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$wpdb->delete( $wpdb->links, array( 'link_id' => $link_id ) );
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/**
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* Fires after a link has been deleted.
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*
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* @since 2.2.0
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*
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* @param int $link_id ID of the deleted link.
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*/
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do_action( 'deleted_link', $link_id );
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clean_bookmark_cache( $link_id );
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return true;
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}
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/**
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* Retrieves the link categories associated with the link specified.
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*
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* @since 2.1.0
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*
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* @param int $link_id Link ID to look up
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* @return array The requested link's categories
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*/
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function wp_get_link_cats( $link_id = 0 ) {
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$cats = wp_get_object_terms( $link_id, 'link_category', array( 'fields' => 'ids' ) );
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return array_unique( $cats );
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}
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/**
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* Retrieves link data based on its ID.
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*
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* @since 2.0.0
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*
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* @param int|stdClass $link Link ID or object to retrieve.
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* @return object Link object for editing.
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*/
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function get_link_to_edit( $link ) {
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return get_bookmark( $link, OBJECT, 'edit' );
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}
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/**
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* Inserts/updates links into/in the database.
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*
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* @since 2.0.0
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*
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* @global wpdb $wpdb WordPress database abstraction object.
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*
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* @param array $linkdata Elements that make up the link to insert.
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* @param bool $wp_error Optional. Whether to return a WP_Error object on failure. Default false.
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* @return int|WP_Error Value 0 or WP_Error on failure. The link ID on success.
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*/
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function wp_insert_link( $linkdata, $wp_error = false ) {
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global $wpdb;
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$defaults = array(
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'link_id' => 0,
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'link_name' => '',
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'link_url' => '',
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'link_rating' => 0,
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);
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$parsed_args = wp_parse_args( $linkdata, $defaults );
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$parsed_args = wp_unslash( sanitize_bookmark( $parsed_args, 'db' ) );
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$link_id = $parsed_args['link_id'];
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$link_name = $parsed_args['link_name'];
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$link_url = $parsed_args['link_url'];
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$update = false;
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if ( ! empty( $link_id ) ) {
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$update = true;
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}
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if ( trim( $link_name ) == '' ) {
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if ( trim( $link_url ) != '' ) {
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$link_name = $link_url;
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} else {
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return 0;
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}
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}
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if ( trim( $link_url ) == '' ) {
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return 0;
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}
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$link_rating = ( ! empty( $parsed_args['link_rating'] ) ) ? $parsed_args['link_rating'] : 0;
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$link_image = ( ! empty( $parsed_args['link_image'] ) ) ? $parsed_args['link_image'] : '';
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$link_target = ( ! empty( $parsed_args['link_target'] ) ) ? $parsed_args['link_target'] : '';
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$link_visible = ( ! empty( $parsed_args['link_visible'] ) ) ? $parsed_args['link_visible'] : 'Y';
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$link_owner = ( ! empty( $parsed_args['link_owner'] ) ) ? $parsed_args['link_owner'] : get_current_user_id();
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$link_notes = ( ! empty( $parsed_args['link_notes'] ) ) ? $parsed_args['link_notes'] : '';
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$link_description = ( ! empty( $parsed_args['link_description'] ) ) ? $parsed_args['link_description'] : '';
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$link_rss = ( ! empty( $parsed_args['link_rss'] ) ) ? $parsed_args['link_rss'] : '';
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$link_rel = ( ! empty( $parsed_args['link_rel'] ) ) ? $parsed_args['link_rel'] : '';
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$link_category = ( ! empty( $parsed_args['link_category'] ) ) ? $parsed_args['link_category'] : array();
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// Make sure we set a valid category.
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if ( ! is_array( $link_category ) || 0 == count( $link_category ) ) {
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$link_category = array( get_option( 'default_link_category' ) );
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}
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if ( $update ) {
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if ( false === $wpdb->update( $wpdb->links, compact( 'link_url', 'link_name', 'link_image', 'link_target', 'link_description', 'link_visible', 'link_rating', 'link_rel', 'link_notes', 'link_rss' ), compact( 'link_id' ) ) ) {
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if ( $wp_error ) {
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return new WP_Error( 'db_update_error', __( 'Could not update link in the database' ), $wpdb->last_error );
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} else {
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return 0;
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}
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}
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} else {
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if ( false === $wpdb->insert( $wpdb->links, compact( 'link_url', 'link_name', 'link_image', 'link_target', 'link_description', 'link_visible', 'link_owner', 'link_rating', 'link_rel', 'link_notes', 'link_rss' ) ) ) {
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if ( $wp_error ) {
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return new WP_Error( 'db_insert_error', __( 'Could not insert link into the database' ), $wpdb->last_error );
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} else {
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return 0;
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}
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}
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$link_id = (int) $wpdb->insert_id;
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}
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wp_set_link_cats( $link_id, $link_category );
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if ( $update ) {
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/**
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* Fires after a link was updated in the database.
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*
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* @since 2.0.0
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*
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* @param int $link_id ID of the link that was updated.
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*/
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do_action( 'edit_link', $link_id );
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} else {
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/**
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* Fires after a link was added to the database.
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*
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* @since 2.0.0
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*
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* @param int $link_id ID of the link that was added.
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*/
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do_action( 'add_link', $link_id );
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}
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clean_bookmark_cache( $link_id );
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return $link_id;
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}
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/**
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* Update link with the specified link categories.
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*
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* @since 2.1.0
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*
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* @param int $link_id ID of the link to update.
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* @param int[] $link_categories Array of link category IDs to add the link to.
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*/
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function wp_set_link_cats( $link_id = 0, $link_categories = array() ) {
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// If $link_categories isn't already an array, make it one:
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if ( ! is_array( $link_categories ) || 0 == count( $link_categories ) ) {
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$link_categories = array( get_option( 'default_link_category' ) );
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}
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$link_categories = array_map( 'intval', $link_categories );
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$link_categories = array_unique( $link_categories );
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wp_set_object_terms( $link_id, $link_categories, 'link_category' );
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clean_bookmark_cache( $link_id );
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}
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/**
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* Updates a link in the database.
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*
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* @since 2.0.0
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*
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* @param array $linkdata Link data to update.
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* @return int|WP_Error Value 0 or WP_Error on failure. The updated link ID on success.
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*/
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function wp_update_link( $linkdata ) {
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$link_id = (int) $linkdata['link_id'];
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$link = get_bookmark( $link_id, ARRAY_A );
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// Escape data pulled from DB.
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$link = wp_slash( $link );
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// Passed link category list overwrites existing category list if not empty.
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if ( isset( $linkdata['link_category'] ) && is_array( $linkdata['link_category'] ) && 0 != count( $linkdata['link_category'] ) ) {
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$link_cats = $linkdata['link_category'];
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} else {
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$link_cats = $link['link_category'];
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}
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// Merge old and new fields with new fields overwriting old ones.
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$linkdata = array_merge( $link, $linkdata );
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$linkdata['link_category'] = $link_cats;
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return wp_insert_link( $linkdata );
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}
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/**
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* Outputs the 'disabled' message for the WordPress Link Manager.
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*
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* @since 3.5.0
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* @access private
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*
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* @global string $pagenow
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*/
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function wp_link_manager_disabled_message() {
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global $pagenow;
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if ( 'link-manager.php' != $pagenow && 'link-add.php' != $pagenow && 'link.php' != $pagenow ) {
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return;
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}
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add_filter( 'pre_option_link_manager_enabled', '__return_true', 100 );
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$really_can_manage_links = current_user_can( 'manage_links' );
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remove_filter( 'pre_option_link_manager_enabled', '__return_true', 100 );
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if ( $really_can_manage_links && current_user_can( 'install_plugins' ) ) {
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$link = network_admin_url( 'plugin-install.php?tab=search&s=Link+Manager' );
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/* translators: %s: URL of link manager plugin */
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wp_die( sprintf( __( 'If you are looking to use the link manager, please install the <a href="%s">Link Manager</a> plugin.' ), $link ) );
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}
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wp_die( __( 'Sorry, you are not allowed to edit the links for this site.' ) );
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}
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