| [ Index ] |
PHP Cross Reference of WordPress |
[Summary view] [Print] [Text view]
1 <?php 2 /** 3 * Navigation Menu functions 4 * 5 * @package WordPress 6 * @subpackage Nav_Menus 7 * @since 3.0.0 8 */ 9 10 /** 11 * Returns a navigation menu object. 12 * 13 * @since 3.0.0 14 * 15 * @uses get_term 16 * @uses get_term_by 17 * 18 * @param string $menu Menu id, slug or name 19 * @return mixed false if $menu param isn't supplied or term does not exist, menu object if successful. 20 */ 21 function wp_get_nav_menu_object( $menu ) { 22 if ( ! $menu ) 23 return false; 24 25 $menu_obj = get_term( $menu, 'nav_menu' ); 26 27 if ( ! $menu_obj ) 28 $menu_obj = get_term_by( 'slug', $menu, 'nav_menu' ); 29 30 if ( ! $menu_obj ) 31 $menu_obj = get_term_by( 'name', $menu, 'nav_menu' ); 32 33 if ( ! $menu_obj ) 34 $menu_obj = false; 35 36 return $menu_obj; 37 } 38 39 /** 40 * Check if the given ID is a navigation menu. 41 * 42 * Returns true if it is; false otherwise. 43 * 44 * @since 3.0.0 45 * 46 * @param int|string $menu The menu to check (id, slug, or name) 47 * @return bool Whether the menu exists. 48 */ 49 function is_nav_menu( $menu ) { 50 if ( ! $menu ) 51 return false; 52 53 $menu_obj = wp_get_nav_menu_object( $menu ); 54 55 if ( 56 $menu_obj && 57 ! is_wp_error( $menu_obj ) && 58 ! empty( $menu_obj->taxonomy ) && 59 'nav_menu' == $menu_obj->taxonomy 60 ) 61 return true; 62 63 return false; 64 } 65 66 /** 67 * Register navigation menus for a theme. 68 * 69 * @since 3.0.0 70 * 71 * @param array $locations Associative array of menu location identifiers (like a slug) and descriptive text. 72 */ 73 function register_nav_menus( $locations = array() ) { 74 global $_wp_registered_nav_menus; 75 76 add_theme_support( 'menus' ); 77 78 $_wp_registered_nav_menus = array_merge( (array) $_wp_registered_nav_menus, $locations ); 79 } 80 81 /** 82 * Unregisters a navigation menu for a theme. 83 * 84 * @param array $location the menu location identifier 85 * 86 * @return bool True on success, false on failure. 87 */ 88 function unregister_nav_menu( $location ) { 89 global $_wp_registered_nav_menus; 90 91 if ( is_array( $_wp_registered_nav_menus ) && isset( $_wp_registered_nav_menus[$location] ) ) { 92 unset( $_wp_registered_nav_menus[$location] ); 93 return true; 94 } 95 return false; 96 } 97 98 /** 99 * Register a navigation menu for a theme. 100 * 101 * @since 3.0.0 102 * 103 * @param string $location Menu location identifier, like a slug. 104 * @param string $description Menu location descriptive text. 105 */ 106 function register_nav_menu( $location, $description ) { 107 register_nav_menus( array( $location => $description ) ); 108 } 109 /** 110 * Returns an array of all registered navigation menus in a theme 111 * 112 * @since 3.0.0 113 * @return array 114 */ 115 function get_registered_nav_menus() { 116 global $_wp_registered_nav_menus; 117 if ( isset( $_wp_registered_nav_menus ) ) 118 return $_wp_registered_nav_menus; 119 return array(); 120 } 121 122 /** 123 * Returns an array with the registered navigation menu locations and the menu assigned to it 124 * 125 * @since 3.0.0 126 * @return array 127 */ 128 129 function get_nav_menu_locations() { 130 return get_theme_mod( 'nav_menu_locations' ); 131 } 132 133 /** 134 * Whether a registered nav menu location has a menu assigned to it. 135 * 136 * @since 3.0.0 137 * @param string $location Menu location identifier. 138 * @return bool Whether location has a menu. 139 */ 140 function has_nav_menu( $location ) { 141 $locations = get_nav_menu_locations(); 142 return ( ! empty( $locations[ $location ] ) ); 143 } 144 145 /** 146 * Determine whether the given ID is a nav menu item. 147 * 148 * @since 3.0.0 149 * 150 * @param int $menu_item_id The ID of the potential nav menu item. 151 * @return bool Whether the given ID is that of a nav menu item. 152 */ 153 function is_nav_menu_item( $menu_item_id = 0 ) { 154 return ( ! is_wp_error( $menu_item_id ) && ( 'nav_menu_item' == get_post_type( $menu_item_id ) ) ); 155 } 156 157 /** 158 * Create a Navigation Menu. 159 * 160 * @since 3.0.0 161 * 162 * @param string $menu_name Menu Name 163 * @return mixed Menu object on success|WP_Error on failure 164 */ 165 function wp_create_nav_menu( $menu_name ) { 166 return wp_update_nav_menu_object( 0, array( 'menu-name' => $menu_name ) ); 167 } 168 169 /** 170 * Delete a Navigation Menu. 171 * 172 * @since 3.0.0 173 * 174 * @param string $menu name|id|slug 175 * @return mixed Menu object on success|WP_Error on failure 176 */ 177 function wp_delete_nav_menu( $menu ) { 178 $menu = wp_get_nav_menu_object( $menu ); 179 if ( ! $menu ) 180 return false; 181 182 $menu_objects = get_objects_in_term( $menu->term_id, 'nav_menu' ); 183 if ( ! empty( $menu_objects ) ) { 184 foreach ( $menu_objects as $item ) { 185 wp_delete_post( $item ); 186 } 187 } 188 189 $result = wp_delete_term( $menu->term_id, 'nav_menu' ); 190 191 if ( $result && !is_wp_error($result) ) 192 do_action( 'wp_delete_nav_menu', $menu->term_id ); 193 194 return $result; 195 } 196 197 /** 198 * Save the properties of a menu or create a new menu with those properties. 199 * 200 * @since 3.0.0 201 * 202 * @param int $menu_id The ID of the menu or "0" to create a new menu. 203 * @param array $menu_data The array of menu data. 204 * @return int|error object The menu's ID or WP_Error object. 205 */ 206 function wp_update_nav_menu_object( $menu_id = 0, $menu_data = array() ) { 207 $menu_id = (int) $menu_id; 208 209 $_menu = wp_get_nav_menu_object( $menu_id ); 210 211 $args = array( 212 'description' => ( isset( $menu_data['description'] ) ? $menu_data['description'] : '' ), 213 'name' => ( isset( $menu_data['menu-name'] ) ? $menu_data['menu-name'] : '' ), 214 'parent' => ( isset( $menu_data['parent'] ) ? (int) $menu_data['parent'] : 0 ), 215 'slug' => null, 216 ); 217 218 // double-check that we're not going to have one menu take the name of another 219 $_possible_existing = get_term_by( 'name', $menu_data['menu-name'], 'nav_menu' ); 220 if ( 221 $_possible_existing && 222 ! is_wp_error( $_possible_existing ) && 223 isset( $_possible_existing->term_id ) && 224 $_possible_existing->term_id != $menu_id 225 ) 226 return new WP_Error( 'menu_exists', sprintf( __('The menu name <strong>%s</strong> conflicts with another menu name. Please try another.'), esc_html( $menu_data['menu-name'] ) ) ); 227 228 // menu doesn't already exist, so create a new menu 229 if ( ! $_menu || is_wp_error( $_menu ) ) { 230 $menu_exists = get_term_by( 'name', $menu_data['menu-name'], 'nav_menu' ); 231 232 if ( $menu_exists ) 233 return new WP_Error( 'menu_exists', sprintf( __('The menu name <strong>%s</strong> conflicts with another menu name. Please try another.'), esc_html( $menu_data['menu-name'] ) ) ); 234 235 $_menu = wp_insert_term( $menu_data['menu-name'], 'nav_menu', $args ); 236 237 if ( is_wp_error( $_menu ) ) 238 return $_menu; 239 240 do_action( 'wp_create_nav_menu', $_menu['term_id'], $menu_data ); 241 242 return (int) $_menu['term_id']; 243 } 244 245 if ( ! $_menu || ! isset( $_menu->term_id ) ) 246 return 0; 247 248 $menu_id = (int) $_menu->term_id; 249 250 $update_response = wp_update_term( $menu_id, 'nav_menu', $args ); 251 252 if ( is_wp_error( $update_response ) ) 253 return $update_response; 254 255 do_action( 'wp_update_nav_menu', $menu_id, $menu_data ); 256 return $menu_id; 257 } 258 259 /** 260 * Save the properties of a menu item or create a new one. 261 * 262 * @since 3.0.0 263 * 264 * @param int $menu_id The ID of the menu. Required. If "0", makes the menu item a draft orphan. 265 * @param int $menu_item_db_id The ID of the menu item. If "0", creates a new menu item. 266 * @param array $menu_item_data The menu item's data. 267 * @return int The menu item's database ID or WP_Error object on failure. 268 */ 269 function wp_update_nav_menu_item( $menu_id = 0, $menu_item_db_id = 0, $menu_item_data = array() ) { 270 $menu_id = (int) $menu_id; 271 $menu_item_db_id = (int) $menu_item_db_id; 272 273 // make sure that we don't convert non-nav_menu_item objects into nav_menu_item objects 274 if ( ! empty( $menu_item_db_id ) && ! is_nav_menu_item( $menu_item_db_id ) ) 275 return new WP_Error('update_nav_menu_item_failed', __('The given object ID is not that of a menu item.')); 276 277 $menu = wp_get_nav_menu_object( $menu_id ); 278 279 if ( ( ! $menu && 0 !== $menu_id ) || is_wp_error( $menu ) ) 280 return $menu; 281 282 $menu_items = 0 == $menu_id ? array() : (array) wp_get_nav_menu_items( $menu_id, array( 'post_status' => 'publish,draft' ) ); 283 284 $count = count( $menu_items ); 285 286 $defaults = array( 287 'menu-item-db-id' => $menu_item_db_id, 288 'menu-item-object-id' => 0, 289 'menu-item-object' => '', 290 'menu-item-parent-id' => 0, 291 'menu-item-position' => 0, 292 'menu-item-type' => 'custom', 293 'menu-item-title' => '', 294 'menu-item-url' => '', 295 'menu-item-description' => '', 296 'menu-item-attr-title' => '', 297 'menu-item-target' => '', 298 'menu-item-classes' => '', 299 'menu-item-xfn' => '', 300 'menu-item-status' => '', 301 ); 302 303 $args = wp_parse_args( $menu_item_data, $defaults ); 304 305 if ( 0 == $menu_id ) { 306 $args['menu-item-position'] = 1; 307 } elseif ( 0 == (int) $args['menu-item-position'] ) { 308 $last_item = array_pop( $menu_items ); 309 $args['menu-item-position'] = ( $last_item && isset( $last_item->menu_order ) ) ? 1 + $last_item->menu_order : $count; 310 } 311 312 $original_parent = 0 < $menu_item_db_id ? get_post_field( 'post_parent', $menu_item_db_id ) : 0; 313 314 if ( 'custom' != $args['menu-item-type'] ) { 315 /* if non-custom menu item, then: 316 * use original object's URL 317 * blank default title to sync with original object's 318 */ 319 320 $args['menu-item-url'] = ''; 321 322 $original_title = ''; 323 if ( 'taxonomy' == $args['menu-item-type'] ) { 324 $original_parent = get_term_field( 'parent', $args['menu-item-object-id'], $args['menu-item-object'], 'raw' ); 325 $original_title = get_term_field( 'name', $args['menu-item-object-id'], $args['menu-item-object'], 'raw' ); 326 } elseif ( 'post_type' == $args['menu-item-type'] ) { 327 328 $original_object = get_post( $args['menu-item-object-id'] ); 329 $original_parent = (int) $original_object->post_parent; 330 $original_title = $original_object->post_title; 331 } 332 333 if ( empty( $args['menu-item-title'] ) || $args['menu-item-title'] == $original_title ) { 334 $args['menu-item-title'] = ''; 335 336 // hack to get wp to create a post object when too many properties are empty 337 if ( empty( $args['menu-item-description'] ) ) 338 $args['menu-item-description'] = ' '; 339 } 340 } 341 342 // Populate the menu item object 343 $post = array( 344 'menu_order' => $args['menu-item-position'], 345 'ping_status' => 0, 346 'post_content' => $args['menu-item-description'], 347 'post_excerpt' => $args['menu-item-attr-title'], 348 'post_parent' => $original_parent, 349 'post_title' => $args['menu-item-title'], 350 'post_type' => 'nav_menu_item', 351 ); 352 353 if ( 0 != $menu_id ) 354 $post['tax_input'] = array( 'nav_menu' => array( intval( $menu->term_id ) ) ); 355 356 // New menu item. Default is draft status 357 if ( 0 == $menu_item_db_id ) { 358 $post['ID'] = 0; 359 $post['post_status'] = 'publish' == $args['menu-item-status'] ? 'publish' : 'draft'; 360 $menu_item_db_id = wp_insert_post( $post ); 361 362 // Update existing menu item. Default is publish status 363 } else { 364 $post['ID'] = $menu_item_db_id; 365 $post['post_status'] = 'draft' == $args['menu-item-status'] ? 'draft' : 'publish'; 366 wp_update_post( $post ); 367 } 368 369 if ( 'custom' == $args['menu-item-type'] ) { 370 $args['menu-item-object-id'] = $menu_item_db_id; 371 $args['menu-item-object'] = 'custom'; 372 } 373 374 if ( ! $menu_item_db_id || is_wp_error( $menu_item_db_id ) ) 375 return $menu_item_db_id; 376 377 $menu_item_db_id = (int) $menu_item_db_id; 378 379 update_post_meta( $menu_item_db_id, '_menu_item_type', sanitize_key($args['menu-item-type']) ); 380 update_post_meta( $menu_item_db_id, '_menu_item_menu_item_parent', (int) $args['menu-item-parent-id'] ); 381 update_post_meta( $menu_item_db_id, '_menu_item_object_id', (int) $args['menu-item-object-id'] ); 382 update_post_meta( $menu_item_db_id, '_menu_item_object', sanitize_key($args['menu-item-object']) ); 383 update_post_meta( $menu_item_db_id, '_menu_item_target', sanitize_key($args['menu-item-target']) ); 384 385 $args['menu-item-classes'] = array_map( 'sanitize_html_class', explode( ' ', $args['menu-item-classes'] ) ); 386 $args['menu-item-xfn'] = implode( ' ', array_map( 'sanitize_html_class', explode( ' ', $args['menu-item-xfn'] ) ) ); 387 update_post_meta( $menu_item_db_id, '_menu_item_classes', $args['menu-item-classes'] ); 388 update_post_meta( $menu_item_db_id, '_menu_item_xfn', $args['menu-item-xfn'] ); 389 update_post_meta( $menu_item_db_id, '_menu_item_url', esc_url_raw($args['menu-item-url']) ); 390 391 if ( 0 == $menu_id ) 392 update_post_meta( $menu_item_db_id, '_menu_item_orphaned', time() ); 393 else 394 delete_post_meta( $menu_item_db_id, '_menu_item_orphaned' ); 395 396 do_action('wp_update_nav_menu_item', $menu_id, $menu_item_db_id, $args ); 397 398 return $menu_item_db_id; 399 } 400 401 /** 402 * Returns all navigation menu objects. 403 * 404 * @since 3.0.0 405 * 406 * @param array $args Array of arguments passed on to get_terms(). 407 * @return array menu objects 408 */ 409 function wp_get_nav_menus( $args = array() ) { 410 $defaults = array( 'hide_empty' => false, 'orderby' => 'none' ); 411 $args = wp_parse_args( $args, $defaults ); 412 return apply_filters( 'wp_get_nav_menus', get_terms( 'nav_menu', $args), $args ); 413 } 414 415 /** 416 * Sort menu items by the desired key. 417 * 418 * @since 3.0.0 419 * @access private 420 * 421 * @param object $a The first object to compare 422 * @param object $b The second object to compare 423 * @return int -1, 0, or 1 if $a is considered to be respectively less than, equal to, or greater than $b. 424 */ 425 function _sort_nav_menu_items( $a, $b ) { 426 global $_menu_item_sort_prop; 427 428 if ( empty( $_menu_item_sort_prop ) ) 429 return 0; 430 431 if ( ! isset( $a->$_menu_item_sort_prop ) || ! isset( $b->$_menu_item_sort_prop ) ) 432 return 0; 433 434 $_a = (int) $a->$_menu_item_sort_prop; 435 $_b = (int) $b->$_menu_item_sort_prop; 436 437 if ( $a->$_menu_item_sort_prop == $b->$_menu_item_sort_prop ) 438 return 0; 439 elseif ( $_a == $a->$_menu_item_sort_prop && $_b == $b->$_menu_item_sort_prop ) 440 return $_a < $_b ? -1 : 1; 441 else 442 return strcmp( $a->$_menu_item_sort_prop, $b->$_menu_item_sort_prop ); 443 } 444 445 /** 446 * Returns if a menu item is valid. Bug #13958 447 * 448 * @since 3.2.0 449 * @access private 450 * 451 * @param object $menu_item The menu item to check 452 * @return bool false if invalid, else true. 453 */ 454 function _is_valid_nav_menu_item( $item ) { 455 if ( ! empty( $item->_invalid ) ) 456 return false; 457 458 return true; 459 } 460 461 /** 462 * Returns all menu items of a navigation menu. 463 * 464 * @since 3.0.0 465 * 466 * @param string $menu menu name, id, or slug 467 * @param string $args 468 * @return mixed $items array of menu items, else false. 469 */ 470 function wp_get_nav_menu_items( $menu, $args = array() ) { 471 global $_wp_using_ext_object_cache; 472 473 $menu = wp_get_nav_menu_object( $menu ); 474 475 if ( ! $menu ) 476 return false; 477 478 static $fetched = array(); 479 480 $items = get_objects_in_term( $menu->term_id, 'nav_menu' ); 481 482 if ( empty( $items ) ) 483 return $items; 484 485 $defaults = array( 'order' => 'ASC', 'orderby' => 'menu_order', 'post_type' => 'nav_menu_item', 486 'post_status' => 'publish', 'output' => ARRAY_A, 'output_key' => 'menu_order', 'nopaging' => true, 487 'update_post_term_cache' => false ); 488 $args = wp_parse_args( $args, $defaults ); 489 if ( count( $items ) > 1 ) 490 $args['include'] = implode( ',', $items ); 491 else 492 $args['include'] = $items[0]; 493 494 $items = get_posts( $args ); 495 496 if ( is_wp_error( $items ) || ! is_array( $items ) ) 497 return false; 498 499 // Get all posts and terms at once to prime the caches 500 if ( empty( $fetched[$menu->term_id] ) || $_wp_using_ext_object_cache ) { 501 $fetched[$menu->term_id] = true; 502 $posts = array(); 503 $terms = array(); 504 foreach ( $items as $item ) { 505 $object_id = get_post_meta( $item->ID, '_menu_item_object_id', true ); 506 $object = get_post_meta( $item->ID, '_menu_item_object', true ); 507 $type = get_post_meta( $item->ID, '_menu_item_type', true ); 508 509 if ( 'post_type' == $type ) 510 $posts[$object][] = $object_id; 511 elseif ( 'taxonomy' == $type) 512 $terms[$object][] = $object_id; 513 } 514 515 if ( ! empty( $posts ) ) { 516 foreach ( array_keys($posts) as $post_type ) { 517 get_posts( array('post__in' => $posts[$post_type], 'post_type' => $post_type, 'nopaging' => true, 'update_post_term_cache' => false) ); 518 } 519 } 520 unset($posts); 521 522 if ( ! empty( $terms ) ) { 523 foreach ( array_keys($terms) as $taxonomy ) { 524 get_terms($taxonomy, array('include' => $terms[$taxonomy]) ); 525 } 526 } 527 unset($terms); 528 } 529 530 $items = array_map( 'wp_setup_nav_menu_item', $items ); 531 532 if ( ! is_admin() ) // Remove invalid items only in frontend 533 $items = array_filter( $items, '_is_valid_nav_menu_item' ); 534 535 if ( ARRAY_A == $args['output'] ) { 536 $GLOBALS['_menu_item_sort_prop'] = $args['output_key']; 537 usort($items, '_sort_nav_menu_items'); 538 $i = 1; 539 foreach( $items as $k => $item ) { 540 $items[$k]->$args['output_key'] = $i++; 541 } 542 } 543 544 return apply_filters( 'wp_get_nav_menu_items', $items, $menu, $args ); 545 } 546 547 /** 548 * Decorates a menu item object with the shared navigation menu item properties. 549 * 550 * Properties: 551 * - db_id: The DB ID of this item as a nav_menu_item object, if it exists (0 if it doesn't exist). 552 * - object_id: The DB ID of the original object this menu item represents, e.g. ID for posts and term_id for categories. 553 * - type: The family of objects originally represented, such as "post_type" or "taxonomy." 554 * - object: The type of object originally represented, such as "category," "post", or "attachment." 555 * - type_label: The singular label used to describe this type of menu item. 556 * - post_parent: The DB ID of the original object's parent object, if any (0 otherwise). 557 * - menu_item_parent: The DB ID of the nav_menu_item that is this item's menu parent, if any. 0 otherwise. 558 * - url: The URL to which this menu item points. 559 * - title: The title of this menu item. 560 * - target: The target attribute of the link element for this menu item. 561 * - attr_title: The title attribute of the link element for this menu item. 562 * - classes: The array of class attribute values for the link element of this menu item. 563 * - xfn: The XFN relationship expressed in the link of this menu item. 564 * - description: The description of this menu item. 565 * 566 * @since 3.0.0 567 * 568 * @param object $menu_item The menu item to modify. 569 * @return object $menu_item The menu item with standard menu item properties. 570 */ 571 function wp_setup_nav_menu_item( $menu_item ) { 572 if ( isset( $menu_item->post_type ) ) { 573 if ( 'nav_menu_item' == $menu_item->post_type ) { 574 $menu_item->db_id = (int) $menu_item->ID; 575 $menu_item->menu_item_parent = empty( $menu_item->menu_item_parent ) ? get_post_meta( $menu_item->ID, '_menu_item_menu_item_parent', true ) : $menu_item->menu_item_parent; 576 $menu_item->object_id = empty( $menu_item->object_id ) ? get_post_meta( $menu_item->ID, '_menu_item_object_id', true ) : $menu_item->object_id; 577 $menu_item->object = empty( $menu_item->object ) ? get_post_meta( $menu_item->ID, '_menu_item_object', true ) : $menu_item->object; 578 $menu_item->type = empty( $menu_item->type ) ? get_post_meta( $menu_item->ID, '_menu_item_type', true ) : $menu_item->type; 579 580 if ( 'post_type' == $menu_item->type ) { 581 $object = get_post_type_object( $menu_item->object ); 582 if ( $object ) { 583 $menu_item->type_label = $object->labels->singular_name; 584 } else { 585 $menu_item->type_label = $menu_item->object; 586 $menu_item->_invalid = true; 587 } 588 589 $menu_item->url = get_permalink( $menu_item->object_id ); 590 591 $original_object = get_post( $menu_item->object_id ); 592 $original_title = $original_object->post_title; 593 $menu_item->title = '' == $menu_item->post_title ? $original_title : $menu_item->post_title; 594 595 } elseif ( 'taxonomy' == $menu_item->type ) { 596 $object = get_taxonomy( $menu_item->object ); 597 if ( $object ) { 598 $menu_item->type_label = $object->labels->singular_name; 599 } else { 600 $menu_item->type_label = $menu_item->object; 601 $menu_item->_invalid = true; 602 } 603 604 $term_url = get_term_link( (int) $menu_item->object_id, $menu_item->object ); 605 $menu_item->url = !is_wp_error( $term_url ) ? $term_url : ''; 606 607 $original_title = get_term_field( 'name', $menu_item->object_id, $menu_item->object, 'raw' ); 608 if ( is_wp_error( $original_title ) ) 609 $original_title = false; 610 $menu_item->title = '' == $menu_item->post_title ? $original_title : $menu_item->post_title; 611 612 } else { 613 $menu_item->type_label = __('Custom'); 614 $menu_item->title = $menu_item->post_title; 615 $menu_item->url = empty( $menu_item->url ) ? get_post_meta( $menu_item->ID, '_menu_item_url', true ) : $menu_item->url; 616 } 617 618 $menu_item->target = empty( $menu_item->target ) ? get_post_meta( $menu_item->ID, '_menu_item_target', true ) : $menu_item->target; 619 620 $menu_item->attr_title = empty( $menu_item->attr_title ) ? apply_filters( 'nav_menu_attr_title', $menu_item->post_excerpt ) : $menu_item->attr_title; 621 622 if ( empty( $menu_item->description ) ) 623 $menu_item->description = apply_filters( 'nav_menu_description', wp_trim_words( $menu_item->post_content, 200 ) ); 624 625 $menu_item->classes = empty( $menu_item->classes ) ? (array) get_post_meta( $menu_item->ID, '_menu_item_classes', true ) : $menu_item->classes; 626 $menu_item->xfn = empty( $menu_item->xfn ) ? get_post_meta( $menu_item->ID, '_menu_item_xfn', true ) : $menu_item->xfn; 627 } else { 628 $menu_item->db_id = 0; 629 $menu_item->menu_item_parent = 0; 630 $menu_item->object_id = (int) $menu_item->ID; 631 $menu_item->type = 'post_type'; 632 633 $object = get_post_type_object( $menu_item->post_type ); 634 $menu_item->object = $object->name; 635 $menu_item->type_label = $object->labels->singular_name; 636 637 $menu_item->title = $menu_item->post_title; 638 $menu_item->url = get_permalink( $menu_item->ID ); 639 $menu_item->target = ''; 640 641 $menu_item->attr_title = apply_filters( 'nav_menu_attr_title', '' ); 642 $menu_item->description = apply_filters( 'nav_menu_description', '' ); 643 $menu_item->classes = array(); 644 $menu_item->xfn = ''; 645 } 646 } elseif ( isset( $menu_item->taxonomy ) ) { 647 $menu_item->ID = $menu_item->term_id; 648 $menu_item->db_id = 0; 649 $menu_item->menu_item_parent = 0; 650 $menu_item->object_id = (int) $menu_item->term_id; 651 $menu_item->post_parent = (int) $menu_item->parent; 652 $menu_item->type = 'taxonomy'; 653 654 $object = get_taxonomy( $menu_item->taxonomy ); 655 $menu_item->object = $object->name; 656 $menu_item->type_label = $object->labels->singular_name; 657 658 $menu_item->title = $menu_item->name; 659 $menu_item->url = get_term_link( $menu_item, $menu_item->taxonomy ); 660 $menu_item->target = ''; 661 $menu_item->attr_title = ''; 662 $menu_item->description = get_term_field( 'description', $menu_item->term_id, $menu_item->taxonomy ); 663 $menu_item->classes = array(); 664 $menu_item->xfn = ''; 665 666 } 667 668 return apply_filters( 'wp_setup_nav_menu_item', $menu_item ); 669 } 670 671 /** 672 * Get the menu items associated with a particular object. 673 * 674 * @since 3.0.0 675 * 676 * @param int $object_id The ID of the original object. 677 * @param string $object_type The type of object, such as "taxonomy" or "post_type." 678 * @return array The array of menu item IDs; empty array if none; 679 */ 680 function wp_get_associated_nav_menu_items( $object_id = 0, $object_type = 'post_type' ) { 681 $object_id = (int) $object_id; 682 $menu_item_ids = array(); 683 684 $query = new WP_Query; 685 $menu_items = $query->query( 686 array( 687 'meta_key' => '_menu_item_object_id', 688 'meta_value' => $object_id, 689 'post_status' => 'any', 690 'post_type' => 'nav_menu_item', 691 'posts_per_page' => -1, 692 ) 693 ); 694 foreach( (array) $menu_items as $menu_item ) { 695 if ( isset( $menu_item->ID ) && is_nav_menu_item( $menu_item->ID ) ) { 696 if ( get_post_meta( $menu_item->ID, '_menu_item_type', true ) != $object_type ) 697 continue; 698 699 $menu_item_ids[] = (int) $menu_item->ID; 700 } 701 } 702 703 return array_unique( $menu_item_ids ); 704 } 705 706 /** 707 * Callback for handling a menu item when its original object is deleted. 708 * 709 * @since 3.0.0 710 * @access private 711 * 712 * @param int $object_id The ID of the original object being trashed. 713 * 714 */ 715 function _wp_delete_post_menu_item( $object_id = 0 ) { 716 $object_id = (int) $object_id; 717 718 $menu_item_ids = wp_get_associated_nav_menu_items( $object_id, 'post_type' ); 719 720 foreach( (array) $menu_item_ids as $menu_item_id ) { 721 wp_delete_post( $menu_item_id, true ); 722 } 723 } 724 725 /** 726 * Callback for handling a menu item when its original object is deleted. 727 * 728 * @since 3.0.0 729 * @access private 730 * 731 * @param int $object_id The ID of the original object being trashed. 732 * 733 */ 734 function _wp_delete_tax_menu_item( $object_id = 0 ) { 735 $object_id = (int) $object_id; 736 737 $menu_item_ids = wp_get_associated_nav_menu_items( $object_id, 'taxonomy' ); 738 739 foreach( (array) $menu_item_ids as $menu_item_id ) { 740 wp_delete_post( $menu_item_id, true ); 741 } 742 } 743 744 /** 745 * Automatically add newly published page objects to menus with that as an option. 746 * 747 * @since 3.0.0 748 * @access private 749 * 750 * @param string $new_status The new status of the post object. 751 * @param string $old_status The old status of the post object. 752 * @param object $post The post object being transitioned from one status to another. 753 * @return void 754 */ 755 function _wp_auto_add_pages_to_menu( $new_status, $old_status, $post ) { 756 if ( 'publish' != $new_status || 'publish' == $old_status || 'page' != $post->post_type ) 757 return; 758 if ( ! empty( $post->post_parent ) ) 759 return; 760 $auto_add = get_option( 'nav_menu_options' ); 761 if ( empty( $auto_add ) || ! is_array( $auto_add ) || ! isset( $auto_add['auto_add'] ) ) 762 return; 763 $auto_add = $auto_add['auto_add']; 764 if ( empty( $auto_add ) || ! is_array( $auto_add ) ) 765 return; 766 767 $args = array( 768 'menu-item-object-id' => $post->ID, 769 'menu-item-object' => $post->post_type, 770 'menu-item-type' => 'post_type', 771 'menu-item-status' => 'publish', 772 ); 773 774 foreach ( $auto_add as $menu_id ) { 775 $items = wp_get_nav_menu_items( $menu_id, array( 'post_status' => 'publish,draft' ) ); 776 if ( ! is_array( $items ) ) 777 continue; 778 foreach ( $items as $item ) { 779 if ( $post->ID == $item->object_id ) 780 continue 2; 781 } 782 wp_update_nav_menu_item( $menu_id, 0, $args ); 783 } 784 }
title
Description
Body
title
Description
Body
title
Description
Body
title
Body
| Generated: Fri May 25 03:56:23 2012 | Hosted by follow the white rabbit. |