<?php
function wp_get_nav_menu_object( $menu ) {
$menu_obj = false;
if ( is_object( $menu ) ) {
$menu_obj = $menu;
}
if ( $menu && ! $menu_obj ) {
$menu_obj = get_term( $menu, 'nav_menu' );
if ( ! $menu_obj ) {
$menu_obj = get_term_by( 'slug', $menu, 'nav_menu' );
}
if ( ! $menu_obj ) {
$menu_obj = get_term_by( 'name', $menu, 'nav_menu' );
}
}
if ( ! $menu_obj || is_wp_error( $menu_obj ) ) {
$menu_obj = false;
}
return apply_filters( 'wp_get_nav_menu_object', $menu_obj, $menu );
}
function is_nav_menu( $menu ) {
if ( ! $menu )
return false;
$menu_obj = wp_get_nav_menu_object( $menu );
if (
$menu_obj &&
! is_wp_error( $menu_obj ) &&
! empty( $menu_obj->taxonomy ) &&
'nav_menu' == $menu_obj->taxonomy
)
return true;
return false;
}
function register_nav_menus( $locations = array() ) {
global $_wp_registered_nav_menus;
add_theme_support( 'menus' );
$_wp_registered_nav_menus = array_merge( (array) $_wp_registered_nav_menus, $locations );
}
function unregister_nav_menu( $location ) {
global $_wp_registered_nav_menus;
if ( is_array( $_wp_registered_nav_menus ) && isset( $_wp_registered_nav_menus[$location] ) ) {
unset( $_wp_registered_nav_menus[$location] );
if ( empty( $_wp_registered_nav_menus ) ) {
_remove_theme_support( 'menus' );
}
return true;
}
return false;
}
function register_nav_menu( $location, $description ) {
register_nav_menus( array( $location => $description ) );
}
function get_registered_nav_menus() {
global $_wp_registered_nav_menus;
if ( isset( $_wp_registered_nav_menus ) )
return $_wp_registered_nav_menus;
return array();
}
function get_nav_menu_locations() {
$locations = get_theme_mod( 'nav_menu_locations' );
return ( is_array( $locations ) ) ? $locations : array();
}
function has_nav_menu( $location ) {
$has_nav_menu = false;
$registered_nav_menus = get_registered_nav_menus();
if ( isset( $registered_nav_menus[ $location ] ) ) {
$locations = get_nav_menu_locations();
$has_nav_menu = ! empty( $locations[ $location ] );
}
return apply_filters( 'has_nav_menu', $has_nav_menu, $location );
}
function is_nav_menu_item( $menu_item_id = 0 ) {
return ( ! is_wp_error( $menu_item_id ) && ( 'nav_menu_item' == get_post_type( $menu_item_id ) ) );
}
function wp_create_nav_menu( $menu_name ) {
return wp_update_nav_menu_object( 0, array( 'menu-name' => $menu_name ) );
}
function wp_delete_nav_menu( $menu ) {
$menu = wp_get_nav_menu_object( $menu );
if ( ! $menu )
return false;
$menu_objects = get_objects_in_term( $menu->term_id, 'nav_menu' );
if ( ! empty( $menu_objects ) ) {
foreach ( $menu_objects as $item ) {
wp_delete_post( $item );
}
}
$result = wp_delete_term( $menu->term_id, 'nav_menu' );
$locations = get_nav_menu_locations();
foreach ( $locations as $location => $menu_id ) {
if ( $menu_id == $menu->term_id )
$locations[ $location ] = 0;
}
set_theme_mod( 'nav_menu_locations', $locations );
if ( $result && !is_wp_error($result) )
do_action( 'wp_delete_nav_menu', $menu->term_id );
return $result;
}
function wp_update_nav_menu_object( $menu_id = 0, $menu_data = array() ) {
$menu_id = (int) $menu_id;
$_menu = wp_get_nav_menu_object( $menu_id );
$args = array(
'description' => ( isset( $menu_data['description'] ) ? $menu_data['description'] : '' ),
'name' => ( isset( $menu_data['menu-name'] ) ? $menu_data['menu-name'] : '' ),
'parent' => ( isset( $menu_data['parent'] ) ? (int) $menu_data['parent'] : 0 ),
'slug' => null,
);
$_possible_existing = get_term_by( 'name', $menu_data['menu-name'], 'nav_menu' );
if (
$_possible_existing &&
! is_wp_error( $_possible_existing ) &&
isset( $_possible_existing->term_id ) &&
$_possible_existing->term_id != $menu_id
) {
return new WP_Error( 'menu_exists',
sprintf( __( 'The menu name %s conflicts with another menu name. Please try another.' ),
'<strong>' . esc_html( $menu_data['menu-name'] ) . '</strong>'
)
);
}
if ( ! $_menu || is_wp_error( $_menu ) ) {
$menu_exists = get_term_by( 'name', $menu_data['menu-name'], 'nav_menu' );
if ( $menu_exists ) {
return new WP_Error( 'menu_exists',
sprintf( __( 'The menu name %s conflicts with another menu name. Please try another.' ),
'<strong>' . esc_html( $menu_data['menu-name'] ) . '</strong>'
)
);
}
$_menu = wp_insert_term( $menu_data['menu-name'], 'nav_menu', $args );
if ( is_wp_error( $_menu ) )
return $_menu;
do_action( 'wp_create_nav_menu', $_menu['term_id'], $menu_data );
return (int) $_menu['term_id'];
}
if ( ! $_menu || ! isset( $_menu->term_id ) )
return 0;
$menu_id = (int) $_menu->term_id;
$update_response = wp_update_term( $menu_id, 'nav_menu', $args );
if ( is_wp_error( $update_response ) )
return $update_response;
$menu_id = (int) $update_response['term_id'];
do_action( 'wp_update_nav_menu', $menu_id, $menu_data );
return $menu_id;
}
function wp_update_nav_menu_item( $menu_id = 0, $menu_item_db_id = 0, $menu_item_data = array() ) {
$menu_id = (int) $menu_id;
$menu_item_db_id = (int) $menu_item_db_id;
if ( ! empty( $menu_item_db_id ) && ! is_nav_menu_item( $menu_item_db_id ) )
return new WP_Error( 'update_nav_menu_item_failed', __( 'The given object ID is not that of a menu item.' ) );
$menu = wp_get_nav_menu_object( $menu_id );
if ( ! $menu && 0 !== $menu_id ) {
return new WP_Error( 'invalid_menu_id', __( 'Invalid menu ID.' ) );
}
if ( is_wp_error( $menu ) ) {
return $menu;
}
$defaults = array(
'menu-item-db-id' => $menu_item_db_id,
'menu-item-object-id' => 0,
'menu-item-object' => '',
'menu-item-parent-id' => 0,
'menu-item-position' => 0,
'menu-item-type' => 'custom',
'menu-item-title' => '',
'menu-item-url' => '',
'menu-item-description' => '',
'menu-item-attr-title' => '',
'menu-item-target' => '',
'menu-item-classes' => '',
'menu-item-xfn' => '',
'menu-item-status' => '',
);
$args = wp_parse_args( $menu_item_data, $defaults );
if ( 0 == $menu_id ) {
$args['menu-item-position'] = 1;
} elseif ( 0 == (int) $args['menu-item-position'] ) {
$menu_items = 0 == $menu_id ? array() : (array) wp_get_nav_menu_items( $menu_id, array( 'post_status' => 'publish, draft' ) );
$last_item = array_pop( $menu_items );
$args['menu-item-position'] = ( $last_item && isset( $last_item->menu_order ) ) ? 1 + $last_item->menu_order : count( $menu_items );
}
$original_parent = 0 < $menu_item_db_id ? get_post_field( 'post_parent', $menu_item_db_id ) : 0;
if ( 'custom' != $args['menu-item-type'] ) {
$args['menu-item-url'] = '';
$original_title = '';
if ( 'taxonomy' == $args['menu-item-type'] ) {
$original_parent = get_term_field( 'parent', $args['menu-item-object-id'], $args['menu-item-object'], 'raw' );
$original_title = get_term_field( 'name', $args['menu-item-object-id'], $args['menu-item-object'], 'raw' );
} elseif ( 'post_type' == $args['menu-item-type'] ) {
$original_object = get_post( $args['menu-item-object-id'] );
$original_parent = (int) $original_object->post_parent;
$original_title = $original_object->post_title;
} elseif ( 'post_type_archive' == $args['menu-item-type'] ) {
$original_object = get_post_type_object( $args['menu-item-object'] );
if ( $original_object ) {
$original_title = $original_object->labels->archives;
}
}
if ( $args['menu-item-title'] == $original_title )
$args['menu-item-title'] = '';
if ( '' == $args['menu-item-title'] && '' == $args['menu-item-description'] )
$args['menu-item-description'] = ' ';
}
$post = array(
'menu_order' => $args['menu-item-position'],
'ping_status' => 0,
'post_content' => $args['menu-item-description'],
'post_excerpt' => $args['menu-item-attr-title'],
'post_parent' => $original_parent,
'post_title' => $args['menu-item-title'],
'post_type' => 'nav_menu_item',
);
$update = 0 != $menu_item_db_id;
if ( ! $update ) {
$post['ID'] = 0;
$post['post_status'] = 'publish' == $args['menu-item-status'] ? 'publish' : 'draft';
$menu_item_db_id = wp_insert_post( $post );
if ( ! $menu_item_db_id || is_wp_error( $menu_item_db_id ) )
return $menu_item_db_id;
do_action( 'wp_add_nav_menu_item', $menu_id, $menu_item_db_id, $args );
}
if ( $menu_id && ( ! $update || ! is_object_in_term( $menu_item_db_id, 'nav_menu', (int) $menu->term_id ) ) ) {
wp_set_object_terms( $menu_item_db_id, array( $menu->term_id ), 'nav_menu' );
}
if ( 'custom' == $args['menu-item-type'] ) {
$args['menu-item-object-id'] = $menu_item_db_id;
$args['menu-item-object'] = 'custom';
}
$menu_item_db_id = (int) $menu_item_db_id;
update_post_meta( $menu_item_db_id, '_menu_item_type', sanitize_key($args['menu-item-type']) );
update_post_meta( $menu_item_db_id, '_menu_item_menu_item_parent', strval( (int) $args['menu-item-parent-id'] ) );
update_post_meta( $menu_item_db_id, '_menu_item_object_id', strval( (int) $args['menu-item-object-id'] ) );
update_post_meta( $menu_item_db_id, '_menu_item_object', sanitize_key($args['menu-item-object']) );
update_post_meta( $menu_item_db_id, '_menu_item_target', sanitize_key($args['menu-item-target']) );
$args['menu-item-classes'] = array_map( 'sanitize_html_class', explode( ' ', $args['menu-item-classes'] ) );
$args['menu-item-xfn'] = implode( ' ', array_map( 'sanitize_html_class', explode( ' ', $args['menu-item-xfn'] ) ) );
update_post_meta( $menu_item_db_id, '_menu_item_classes', $args['menu-item-classes'] );
update_post_meta( $menu_item_db_id, '_menu_item_xfn', $args['menu-item-xfn'] );
update_post_meta( $menu_item_db_id, '_menu_item_url', esc_url_raw($args['menu-item-url']) );
if ( 0 == $menu_id )
update_post_meta( $menu_item_db_id, '_menu_item_orphaned', (string) time() );
elseif ( get_post_meta( $menu_item_db_id, '_menu_item_orphaned' ) )
delete_post_meta( $menu_item_db_id, '_menu_item_orphaned' );
if ( $update ) {
$post['ID'] = $menu_item_db_id;
$post['post_status'] = 'draft' == $args['menu-item-status'] ? 'draft' : 'publish';
wp_update_post( $post );
}
do_action( 'wp_update_nav_menu_item', $menu_id, $menu_item_db_id, $args );
return $menu_item_db_id;
}
function wp_get_nav_menus( $args = array() ) {
$defaults = array( 'hide_empty' => false, 'orderby' => 'name' );
$args = wp_parse_args( $args, $defaults );
return apply_filters( 'wp_get_nav_menus', get_terms( 'nav_menu', $args), $args );
}
function _is_valid_nav_menu_item( $item ) {
return empty( $item->_invalid );
}
function wp_get_nav_menu_items( $menu, $args = array() ) {
$menu = wp_get_nav_menu_object( $menu );
if ( ! $menu ) {
return false;
}
static $fetched = array();
$items = get_objects_in_term( $menu->term_id, 'nav_menu' );
if ( is_wp_error( $items ) ) {
return false;
}
$defaults = array( 'order' => 'ASC', 'orderby' => 'menu_order', 'post_type' => 'nav_menu_item',
'post_status' => 'publish', 'output' => ARRAY_A, 'output_key' => 'menu_order', 'nopaging' => true );
$args = wp_parse_args( $args, $defaults );
$args['include'] = $items;
if ( ! empty( $items ) ) {
$items = get_posts( $args );
} else {
$items = array();
}
if ( empty( $fetched[$menu->term_id] ) || wp_using_ext_object_cache() ) {
$fetched[$menu->term_id] = true;
$posts = array();
$terms = array();
foreach ( $items as $item ) {
$object_id = get_post_meta( $item->ID, '_menu_item_object_id', true );
$object = get_post_meta( $item->ID, '_menu_item_object', true );
$type = get_post_meta( $item->ID, '_menu_item_type', true );
if ( 'post_type' == $type )
$posts[$object][] = $object_id;
elseif ( 'taxonomy' == $type)
$terms[$object][] = $object_id;
}
if ( ! empty( $posts ) ) {
foreach ( array_keys($posts) as $post_type ) {
get_posts( array('post__in' => $posts[$post_type], 'post_type' => $post_type, 'nopaging' => true, 'update_post_term_cache' => false) );
}
}
unset($posts);
if ( ! empty( $terms ) ) {
foreach ( array_keys($terms) as $taxonomy ) {
get_terms( $taxonomy, array(
'include' => $terms[ $taxonomy ],
'hierarchical' => false,
) );
}
}
unset($terms);
}
$items = array_map( 'wp_setup_nav_menu_item', $items );
if ( ! is_admin() ) {
$items = array_filter( $items, '_is_valid_nav_menu_item' );
}
if ( ARRAY_A == $args['output'] ) {
$items = wp_list_sort( $items, array(
$args['output_key'] => 'ASC',
) );
$i = 1;
foreach ( $items as $k => $item ) {
$items[$k]->{$args['output_key']} = $i++;
}
}
return apply_filters( 'wp_get_nav_menu_items', $items, $menu, $args );
}
function wp_setup_nav_menu_item( $menu_item ) {
if ( isset( $menu_item->post_type ) ) {
if ( 'nav_menu_item' == $menu_item->post_type ) {
$menu_item->db_id = (int) $menu_item->ID;
$menu_item->menu_item_parent = ! isset( $menu_item->menu_item_parent ) ? get_post_meta( $menu_item->ID, '_menu_item_menu_item_parent', true ) : $menu_item->menu_item_parent;
$menu_item->object_id = ! isset( $menu_item->object_id ) ? get_post_meta( $menu_item->ID, '_menu_item_object_id', true ) : $menu_item->object_id;
$menu_item->object = ! isset( $menu_item->object ) ? get_post_meta( $menu_item->ID, '_menu_item_object', true ) : $menu_item->object;
$menu_item->type = ! isset( $menu_item->type ) ? get_post_meta( $menu_item->ID, '_menu_item_type', true ) : $menu_item->type;
if ( 'post_type' == $menu_item->type ) {
$object = get_post_type_object( $menu_item->object );
if ( $object ) {
$menu_item->type_label = $object->labels->singular_name;
} else {
$menu_item->type_label = $menu_item->object;
$menu_item->_invalid = true;
}
if ( 'trash' === get_post_status( $menu_item->object_id ) ) {
$menu_item->_invalid = true;
}
$menu_item->url = get_permalink( $menu_item->object_id );
$original_object = get_post( $menu_item->object_id );
$original_title = apply_filters( 'the_title', $original_object->post_title, $original_object->ID );
if ( '' === $original_title ) {
$original_title = sprintf( __( '#%d (no title)' ), $original_object->ID );
}
$menu_item->title = '' == $menu_item->post_title ? $original_title : $menu_item->post_title;
} elseif ( 'post_type_archive' == $menu_item->type ) {
$object = get_post_type_object( $menu_item->object );
if ( $object ) {
$menu_item->title = '' == $menu_item->post_title ? $object->labels->archives : $menu_item->post_title;
$post_type_description = $object->description;
} else {
$menu_item->_invalid = true;
$post_type_description = '';
}
$menu_item->type_label = __( 'Post Type Archive' );
$post_content = wp_trim_words( $menu_item->post_content, 200 );
$post_type_description = '' == $post_content ? $post_type_description : $post_content;
$menu_item->url = get_post_type_archive_link( $menu_item->object );
} elseif ( 'taxonomy' == $menu_item->type ) {
$object = get_taxonomy( $menu_item->object );
if ( $object ) {
$menu_item->type_label = $object->labels->singular_name;
} else {
$menu_item->type_label = $menu_item->object;
$menu_item->_invalid = true;
}
$term_url = get_term_link( (int) $menu_item->object_id, $menu_item->object );
$menu_item->url = !is_wp_error( $term_url ) ? $term_url : '';
$original_title = get_term_field( 'name', $menu_item->object_id, $menu_item->object, 'raw' );
if ( is_wp_error( $original_title ) )
$original_title = false;
$menu_item->title = '' == $menu_item->post_title ? $original_title : $menu_item->post_title;
} else {
$menu_item->type_label = __('Custom Link');
$menu_item->title = $menu_item->post_title;
$menu_item->url = ! isset( $menu_item->url ) ? get_post_meta( $menu_item->ID, '_menu_item_url', true ) : $menu_item->url;
}
$menu_item->target = ! isset( $menu_item->target ) ? get_post_meta( $menu_item->ID, '_menu_item_target', true ) : $menu_item->target;
$menu_item->attr_title = ! isset( $menu_item->attr_title ) ? apply_filters( 'nav_menu_attr_title', $menu_item->post_excerpt ) : $menu_item->attr_title;
if ( ! isset( $menu_item->description ) ) {
$menu_item->description = apply_filters( 'nav_menu_description', wp_trim_words( $menu_item->post_content, 200 ) );
}
$menu_item->classes = ! isset( $menu_item->classes ) ? (array) get_post_meta( $menu_item->ID, '_menu_item_classes', true ) : $menu_item->classes;
$menu_item->xfn = ! isset( $menu_item->xfn ) ? get_post_meta( $menu_item->ID, '_menu_item_xfn', true ) : $menu_item->xfn;
} else {
$menu_item->db_id = 0;
$menu_item->menu_item_parent = 0;
$menu_item->object_id = (int) $menu_item->ID;
$menu_item->type = 'post_type';
$object = get_post_type_object( $menu_item->post_type );
$menu_item->object = $object->name;
$menu_item->type_label = $object->labels->singular_name;
if ( '' === $menu_item->post_title ) {
$menu_item->post_title = sprintf( __( '#%d (no title)' ), $menu_item->ID );
}
$menu_item->title = $menu_item->post_title;
$menu_item->url = get_permalink( $menu_item->ID );
$menu_item->target = '';
$menu_item->attr_title = apply_filters( 'nav_menu_attr_title', '' );
$menu_item->description = apply_filters( 'nav_menu_description', '' );
$menu_item->classes = array();
$menu_item->xfn = '';
}
} elseif ( isset( $menu_item->taxonomy ) ) {
$menu_item->ID = $menu_item->term_id;
$menu_item->db_id = 0;
$menu_item->menu_item_parent = 0;
$menu_item->object_id = (int) $menu_item->term_id;
$menu_item->post_parent = (int) $menu_item->parent;
$menu_item->type = 'taxonomy';
$object = get_taxonomy( $menu_item->taxonomy );
$menu_item->object = $object->name;
$menu_item->type_label = $object->labels->singular_name;
$menu_item->title = $menu_item->name;
$menu_item->url = get_term_link( $menu_item, $menu_item->taxonomy );
$menu_item->target = '';
$menu_item->attr_title = '';
$menu_item->description = get_term_field( 'description', $menu_item->term_id, $menu_item->taxonomy );
$menu_item->classes = array();
$menu_item->xfn = '';
}
return apply_filters( 'wp_setup_nav_menu_item', $menu_item );
}
function wp_get_associated_nav_menu_items( $object_id = 0, $object_type = 'post_type', $taxonomy = '' ) {
$object_id = (int) $object_id;
$menu_item_ids = array();
$query = new WP_Query;
$menu_items = $query->query(
array(
'meta_key' => '_menu_item_object_id',
'meta_value' => $object_id,
'post_status' => 'any',
'post_type' => 'nav_menu_item',
'posts_per_page' => -1,
)
);
foreach ( (array) $menu_items as $menu_item ) {
if ( isset( $menu_item->ID ) && is_nav_menu_item( $menu_item->ID ) ) {
$menu_item_type = get_post_meta( $menu_item->ID, '_menu_item_type', true );
if (
'post_type' == $object_type &&
'post_type' == $menu_item_type
) {
$menu_item_ids[] = (int) $menu_item->ID;
} elseif (
'taxonomy' == $object_type &&
'taxonomy' == $menu_item_type &&
get_post_meta( $menu_item->ID, '_menu_item_object', true ) == $taxonomy
) {
$menu_item_ids[] = (int) $menu_item->ID;
}
}
}
return array_unique( $menu_item_ids );
}
function _wp_delete_post_menu_item( $object_id = 0 ) {
$object_id = (int) $object_id;
$menu_item_ids = wp_get_associated_nav_menu_items( $object_id, 'post_type' );
foreach ( (array) $menu_item_ids as $menu_item_id ) {
wp_delete_post( $menu_item_id, true );
}
}
function _wp_delete_tax_menu_item( $object_id = 0, $tt_id, $taxonomy ) {
$object_id = (int) $object_id;
$menu_item_ids = wp_get_associated_nav_menu_items( $object_id, 'taxonomy', $taxonomy );
foreach ( (array) $menu_item_ids as $menu_item_id ) {
wp_delete_post( $menu_item_id, true );
}
}
function _wp_auto_add_pages_to_menu( $new_status, $old_status, $post ) {
if ( 'publish' != $new_status || 'publish' == $old_status || 'page' != $post->post_type )
return;
if ( ! empty( $post->post_parent ) )
return;
$auto_add = get_option( 'nav_menu_options' );
if ( empty( $auto_add ) || ! is_array( $auto_add ) || ! isset( $auto_add['auto_add'] ) )
return;
$auto_add = $auto_add['auto_add'];
if ( empty( $auto_add ) || ! is_array( $auto_add ) )
return;
$args = array(
'menu-item-object-id' => $post->ID,
'menu-item-object' => $post->post_type,
'menu-item-type' => 'post_type',
'menu-item-status' => 'publish',
);
foreach ( $auto_add as $menu_id ) {
$items = wp_get_nav_menu_items( $menu_id, array( 'post_status' => 'publish, draft' ) );
if ( ! is_array( $items ) )
continue;
foreach ( $items as $item ) {
if ( $post->ID == $item->object_id )
continue 2;
}
wp_update_nav_menu_item( $menu_id, 0, $args );
}
}