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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 $locations = get_theme_mod( 'nav_menu_locations' ); 131 return ( is_array( $locations ) ) ? $locations : array(); 132 } 133 134 /** 135 * Whether a registered nav menu location has a menu assigned to it. 136 * 137 * @since 3.0.0 138 * @param string $location Menu location identifier. 139 * @return bool Whether location has a menu. 140 */ 141 function has_nav_menu( $location ) { 142 $locations = get_nav_menu_locations(); 143 return ( ! empty( $locations[ $location ] ) ); 144 } 145 146 /** 147 * Determine whether the given ID is a nav menu item. 148 * 149 * @since 3.0.0 150 * 151 * @param int $menu_item_id The ID of the potential nav menu item. 152 * @return bool Whether the given ID is that of a nav menu item. 153 */ 154 function is_nav_menu_item( $menu_item_id = 0 ) { 155 return ( ! is_wp_error( $menu_item_id ) && ( 'nav_menu_item' == get_post_type( $menu_item_id ) ) ); 156 } 157 158 /** 159 * Create a Navigation Menu. 160 * 161 * @since 3.0.0 162 * 163 * @param string $menu_name Menu Name 164 * @return mixed Menu object on success|WP_Error on failure 165 */ 166 function wp_create_nav_menu( $menu_name ) { 167 return wp_update_nav_menu_object( 0, array( 'menu-name' => $menu_name ) ); 168 } 169 170 /** 171 * Delete a Navigation Menu. 172 * 173 * @since 3.0.0 174 * 175 * @param string $menu name|id|slug 176 * @return mixed Menu object on success|WP_Error on failure 177 */ 178 function wp_delete_nav_menu( $menu ) { 179 $menu = wp_get_nav_menu_object( $menu ); 180 if ( ! $menu ) 181 return false; 182 183 $menu_objects = get_objects_in_term( $menu->term_id, 'nav_menu' ); 184 if ( ! empty( $menu_objects ) ) { 185 foreach ( $menu_objects as $item ) { 186 wp_delete_post( $item ); 187 } 188 } 189 190 $result = wp_delete_term( $menu->term_id, 'nav_menu' ); 191 192 // Remove this menu from any locations. 193 $locations = get_nav_menu_locations(); 194 foreach ( $locations as $location => $menu_id ) { 195 if ( $menu_id == $menu->term_id ) 196 $locations[ $location ] = 0; 197 } 198 set_theme_mod( 'nav_menu_locations', $locations ); 199 200 if ( $result && !is_wp_error($result) ) 201 do_action( 'wp_delete_nav_menu', $menu->term_id ); 202 203 return $result; 204 } 205 206 /** 207 * Save the properties of a menu or create a new menu with those properties. 208 * 209 * @since 3.0.0 210 * 211 * @param int $menu_id The ID of the menu or "0" to create a new menu. 212 * @param array $menu_data The array of menu data. 213 * @return int|error object The menu's ID or WP_Error object. 214 */ 215 function wp_update_nav_menu_object( $menu_id = 0, $menu_data = array() ) { 216 $menu_id = (int) $menu_id; 217 218 $_menu = wp_get_nav_menu_object( $menu_id ); 219 220 $args = array( 221 'description' => ( isset( $menu_data['description'] ) ? $menu_data['description'] : '' ), 222 'name' => ( isset( $menu_data['menu-name'] ) ? $menu_data['menu-name'] : '' ), 223 'parent' => ( isset( $menu_data['parent'] ) ? (int) $menu_data['parent'] : 0 ), 224 'slug' => null, 225 ); 226 227 // double-check that we're not going to have one menu take the name of another 228 $_possible_existing = get_term_by( 'name', $menu_data['menu-name'], 'nav_menu' ); 229 if ( 230 $_possible_existing && 231 ! is_wp_error( $_possible_existing ) && 232 isset( $_possible_existing->term_id ) && 233 $_possible_existing->term_id != $menu_id 234 ) 235 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'] ) ) ); 236 237 // menu doesn't already exist, so create a new menu 238 if ( ! $_menu || is_wp_error( $_menu ) ) { 239 $menu_exists = get_term_by( 'name', $menu_data['menu-name'], 'nav_menu' ); 240 241 if ( $menu_exists ) 242 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'] ) ) ); 243 244 $_menu = wp_insert_term( $menu_data['menu-name'], 'nav_menu', $args ); 245 246 if ( is_wp_error( $_menu ) ) 247 return $_menu; 248 249 do_action( 'wp_create_nav_menu', $_menu['term_id'], $menu_data ); 250 251 return (int) $_menu['term_id']; 252 } 253 254 if ( ! $_menu || ! isset( $_menu->term_id ) ) 255 return 0; 256 257 $menu_id = (int) $_menu->term_id; 258 259 $update_response = wp_update_term( $menu_id, 'nav_menu', $args ); 260 261 if ( is_wp_error( $update_response ) ) 262 return $update_response; 263 264 do_action( 'wp_update_nav_menu', $menu_id, $menu_data ); 265 return $menu_id; 266 } 267 268 /** 269 * Save the properties of a menu item or create a new one. 270 * 271 * @since 3.0.0 272 * 273 * @param int $menu_id The ID of the menu. Required. If "0", makes the menu item a draft orphan. 274 * @param int $menu_item_db_id The ID of the menu item. If "0", creates a new menu item. 275 * @param array $menu_item_data The menu item's data. 276 * @return int The menu item's database ID or WP_Error object on failure. 277 */ 278 function wp_update_nav_menu_item( $menu_id = 0, $menu_item_db_id = 0, $menu_item_data = array() ) { 279 $menu_id = (int) $menu_id; 280 $menu_item_db_id = (int) $menu_item_db_id; 281 282 // make sure that we don't convert non-nav_menu_item objects into nav_menu_item objects 283 if ( ! empty( $menu_item_db_id ) && ! is_nav_menu_item( $menu_item_db_id ) ) 284 return new WP_Error('update_nav_menu_item_failed', __('The given object ID is not that of a menu item.')); 285 286 $menu = wp_get_nav_menu_object( $menu_id ); 287 288 if ( ( ! $menu && 0 !== $menu_id ) || is_wp_error( $menu ) ) 289 return $menu; 290 291 $defaults = array( 292 'menu-item-db-id' => $menu_item_db_id, 293 'menu-item-object-id' => 0, 294 'menu-item-object' => '', 295 'menu-item-parent-id' => 0, 296 'menu-item-position' => 0, 297 'menu-item-type' => 'custom', 298 'menu-item-title' => '', 299 'menu-item-url' => '', 300 'menu-item-description' => '', 301 'menu-item-attr-title' => '', 302 'menu-item-target' => '', 303 'menu-item-classes' => '', 304 'menu-item-xfn' => '', 305 'menu-item-status' => '', 306 ); 307 308 $args = wp_parse_args( $menu_item_data, $defaults ); 309 310 if ( 0 == $menu_id ) { 311 $args['menu-item-position'] = 1; 312 } elseif ( 0 == (int) $args['menu-item-position'] ) { 313 $menu_items = 0 == $menu_id ? array() : (array) wp_get_nav_menu_items( $menu_id, array( 'post_status' => 'publish,draft' ) ); 314 $last_item = array_pop( $menu_items ); 315 $args['menu-item-position'] = ( $last_item && isset( $last_item->menu_order ) ) ? 1 + $last_item->menu_order : count( $menu_items ); 316 } 317 318 $original_parent = 0 < $menu_item_db_id ? get_post_field( 'post_parent', $menu_item_db_id ) : 0; 319 320 if ( 'custom' != $args['menu-item-type'] ) { 321 /* if non-custom menu item, then: 322 * use original object's URL 323 * blank default title to sync with original object's 324 */ 325 326 $args['menu-item-url'] = ''; 327 328 $original_title = ''; 329 if ( 'taxonomy' == $args['menu-item-type'] ) { 330 $original_parent = get_term_field( 'parent', $args['menu-item-object-id'], $args['menu-item-object'], 'raw' ); 331 $original_title = get_term_field( 'name', $args['menu-item-object-id'], $args['menu-item-object'], 'raw' ); 332 } elseif ( 'post_type' == $args['menu-item-type'] ) { 333 334 $original_object = get_post( $args['menu-item-object-id'] ); 335 $original_parent = (int) $original_object->post_parent; 336 $original_title = $original_object->post_title; 337 } 338 339 if ( $args['menu-item-title'] == $original_title ) 340 $args['menu-item-title'] = ''; 341 342 // hack to get wp to create a post object when too many properties are empty 343 if ( '' == $args['menu-item-title'] && '' == $args['menu-item-description'] ) 344 $args['menu-item-description'] = ' '; 345 } 346 347 // Populate the menu item object 348 $post = array( 349 'menu_order' => $args['menu-item-position'], 350 'ping_status' => 0, 351 'post_content' => $args['menu-item-description'], 352 'post_excerpt' => $args['menu-item-attr-title'], 353 'post_parent' => $original_parent, 354 'post_title' => $args['menu-item-title'], 355 'post_type' => 'nav_menu_item', 356 ); 357 358 $update = 0 != $menu_item_db_id; 359 360 // Only set the menu term if it isn't set to avoid unnecessary wp_get_object_terms() 361 if ( $menu_id && ( ! $update || ! is_object_in_term( $menu_item_db_id, 'nav_menu', (int) $menu->term_id ) ) ) 362 $post['tax_input'] = array( 'nav_menu' => array( intval( $menu->term_id ) ) ); 363 364 // New menu item. Default is draft status 365 if ( ! $update ) { 366 $post['ID'] = 0; 367 $post['post_status'] = 'publish' == $args['menu-item-status'] ? 'publish' : 'draft'; 368 $menu_item_db_id = wp_insert_post( $post ); 369 if ( ! $menu_item_db_id || is_wp_error( $menu_item_db_id ) ) 370 return $menu_item_db_id; 371 } 372 373 if ( 'custom' == $args['menu-item-type'] ) { 374 $args['menu-item-object-id'] = $menu_item_db_id; 375 $args['menu-item-object'] = 'custom'; 376 } 377 378 $menu_item_db_id = (int) $menu_item_db_id; 379 380 update_post_meta( $menu_item_db_id, '_menu_item_type', sanitize_key($args['menu-item-type']) ); 381 update_post_meta( $menu_item_db_id, '_menu_item_menu_item_parent', strval( (int) $args['menu-item-parent-id'] ) ); 382 update_post_meta( $menu_item_db_id, '_menu_item_object_id', strval( (int) $args['menu-item-object-id'] ) ); 383 update_post_meta( $menu_item_db_id, '_menu_item_object', sanitize_key($args['menu-item-object']) ); 384 update_post_meta( $menu_item_db_id, '_menu_item_target', sanitize_key($args['menu-item-target']) ); 385 386 $args['menu-item-classes'] = array_map( 'sanitize_html_class', explode( ' ', $args['menu-item-classes'] ) ); 387 $args['menu-item-xfn'] = implode( ' ', array_map( 'sanitize_html_class', explode( ' ', $args['menu-item-xfn'] ) ) ); 388 update_post_meta( $menu_item_db_id, '_menu_item_classes', $args['menu-item-classes'] ); 389 update_post_meta( $menu_item_db_id, '_menu_item_xfn', $args['menu-item-xfn'] ); 390 update_post_meta( $menu_item_db_id, '_menu_item_url', esc_url_raw($args['menu-item-url']) ); 391 392 if ( 0 == $menu_id ) 393 update_post_meta( $menu_item_db_id, '_menu_item_orphaned', (string) time() ); 394 elseif ( get_post_meta( $menu_item_db_id, '_menu_item_orphaned' ) ) 395 delete_post_meta( $menu_item_db_id, '_menu_item_orphaned' ); 396 397 // Update existing menu item. Default is publish status 398 if ( $update ) { 399 $post['ID'] = $menu_item_db_id; 400 $post['post_status'] = 'draft' == $args['menu-item-status'] ? 'draft' : 'publish'; 401 wp_update_post( $post ); 402 } 403 404 do_action('wp_update_nav_menu_item', $menu_id, $menu_item_db_id, $args ); 405 406 return $menu_item_db_id; 407 } 408 409 /** 410 * Returns all navigation menu objects. 411 * 412 * @since 3.0.0 413 * 414 * @param array $args Array of arguments passed on to get_terms(). 415 * @return array menu objects 416 */ 417 function wp_get_nav_menus( $args = array() ) { 418 $defaults = array( 'hide_empty' => false, 'orderby' => 'none' ); 419 $args = wp_parse_args( $args, $defaults ); 420 return apply_filters( 'wp_get_nav_menus', get_terms( 'nav_menu', $args), $args ); 421 } 422 423 /** 424 * Sort menu items by the desired key. 425 * 426 * @since 3.0.0 427 * @access private 428 * 429 * @param object $a The first object to compare 430 * @param object $b The second object to compare 431 * @return int -1, 0, or 1 if $a is considered to be respectively less than, equal to, or greater than $b. 432 */ 433 function _sort_nav_menu_items( $a, $b ) { 434 global $_menu_item_sort_prop; 435 436 if ( empty( $_menu_item_sort_prop ) ) 437 return 0; 438 439 if ( ! isset( $a->$_menu_item_sort_prop ) || ! isset( $b->$_menu_item_sort_prop ) ) 440 return 0; 441 442 $_a = (int) $a->$_menu_item_sort_prop; 443 $_b = (int) $b->$_menu_item_sort_prop; 444 445 if ( $a->$_menu_item_sort_prop == $b->$_menu_item_sort_prop ) 446 return 0; 447 elseif ( $_a == $a->$_menu_item_sort_prop && $_b == $b->$_menu_item_sort_prop ) 448 return $_a < $_b ? -1 : 1; 449 else 450 return strcmp( $a->$_menu_item_sort_prop, $b->$_menu_item_sort_prop ); 451 } 452 453 /** 454 * Returns if a menu item is valid. Bug #13958 455 * 456 * @since 3.2.0 457 * @access private 458 * 459 * @param object $menu_item The menu item to check 460 * @return bool false if invalid, else true. 461 */ 462 function _is_valid_nav_menu_item( $item ) { 463 if ( ! empty( $item->_invalid ) ) 464 return false; 465 466 return true; 467 } 468 469 /** 470 * Returns all menu items of a navigation menu. 471 * 472 * @since 3.0.0 473 * 474 * @param string $menu menu name, id, or slug 475 * @param string $args 476 * @return mixed $items array of menu items, else false. 477 */ 478 function wp_get_nav_menu_items( $menu, $args = array() ) { 479 $menu = wp_get_nav_menu_object( $menu ); 480 481 if ( ! $menu ) 482 return false; 483 484 static $fetched = array(); 485 486 $items = get_objects_in_term( $menu->term_id, 'nav_menu' ); 487 488 if ( empty( $items ) ) 489 return $items; 490 491 $defaults = array( 'order' => 'ASC', 'orderby' => 'menu_order', 'post_type' => 'nav_menu_item', 492 'post_status' => 'publish', 'output' => ARRAY_A, 'output_key' => 'menu_order', 'nopaging' => true ); 493 $args = wp_parse_args( $args, $defaults ); 494 if ( count( $items ) > 1 ) 495 $args['include'] = implode( ',', $items ); 496 else 497 $args['include'] = $items[0]; 498 499 $items = get_posts( $args ); 500 501 if ( is_wp_error( $items ) || ! is_array( $items ) ) 502 return false; 503 504 // Get all posts and terms at once to prime the caches 505 if ( empty( $fetched[$menu->term_id] ) || wp_using_ext_object_cache() ) { 506 $fetched[$menu->term_id] = true; 507 $posts = array(); 508 $terms = array(); 509 foreach ( $items as $item ) { 510 $object_id = get_post_meta( $item->ID, '_menu_item_object_id', true ); 511 $object = get_post_meta( $item->ID, '_menu_item_object', true ); 512 $type = get_post_meta( $item->ID, '_menu_item_type', true ); 513 514 if ( 'post_type' == $type ) 515 $posts[$object][] = $object_id; 516 elseif ( 'taxonomy' == $type) 517 $terms[$object][] = $object_id; 518 } 519 520 if ( ! empty( $posts ) ) { 521 foreach ( array_keys($posts) as $post_type ) { 522 get_posts( array('post__in' => $posts[$post_type], 'post_type' => $post_type, 'nopaging' => true, 'update_post_term_cache' => false) ); 523 } 524 } 525 unset($posts); 526 527 if ( ! empty( $terms ) ) { 528 foreach ( array_keys($terms) as $taxonomy ) { 529 get_terms($taxonomy, array('include' => $terms[$taxonomy]) ); 530 } 531 } 532 unset($terms); 533 } 534 535 $items = array_map( 'wp_setup_nav_menu_item', $items ); 536 537 if ( ! is_admin() ) // Remove invalid items only in frontend 538 $items = array_filter( $items, '_is_valid_nav_menu_item' ); 539 540 if ( ARRAY_A == $args['output'] ) { 541 $GLOBALS['_menu_item_sort_prop'] = $args['output_key']; 542 usort($items, '_sort_nav_menu_items'); 543 $i = 1; 544 foreach( $items as $k => $item ) { 545 $items[$k]->$args['output_key'] = $i++; 546 } 547 } 548 549 return apply_filters( 'wp_get_nav_menu_items', $items, $menu, $args ); 550 } 551 552 /** 553 * Decorates a menu item object with the shared navigation menu item properties. 554 * 555 * Properties: 556 * - db_id: The DB ID of this item as a nav_menu_item object, if it exists (0 if it doesn't exist). 557 * - object_id: The DB ID of the original object this menu item represents, e.g. ID for posts and term_id for categories. 558 * - type: The family of objects originally represented, such as "post_type" or "taxonomy." 559 * - object: The type of object originally represented, such as "category," "post", or "attachment." 560 * - type_label: The singular label used to describe this type of menu item. 561 * - post_parent: The DB ID of the original object's parent object, if any (0 otherwise). 562 * - menu_item_parent: The DB ID of the nav_menu_item that is this item's menu parent, if any. 0 otherwise. 563 * - url: The URL to which this menu item points. 564 * - title: The title of this menu item. 565 * - target: The target attribute of the link element for this menu item. 566 * - attr_title: The title attribute of the link element for this menu item. 567 * - classes: The array of class attribute values for the link element of this menu item. 568 * - xfn: The XFN relationship expressed in the link of this menu item. 569 * - description: The description of this menu item. 570 * 571 * @since 3.0.0 572 * 573 * @param object $menu_item The menu item to modify. 574 * @return object $menu_item The menu item with standard menu item properties. 575 */ 576 function wp_setup_nav_menu_item( $menu_item ) { 577 if ( isset( $menu_item->post_type ) ) { 578 if ( 'nav_menu_item' == $menu_item->post_type ) { 579 $menu_item->db_id = (int) $menu_item->ID; 580 $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; 581 $menu_item->object_id = empty( $menu_item->object_id ) ? get_post_meta( $menu_item->ID, '_menu_item_object_id', true ) : $menu_item->object_id; 582 $menu_item->object = empty( $menu_item->object ) ? get_post_meta( $menu_item->ID, '_menu_item_object', true ) : $menu_item->object; 583 $menu_item->type = empty( $menu_item->type ) ? get_post_meta( $menu_item->ID, '_menu_item_type', true ) : $menu_item->type; 584 585 if ( 'post_type' == $menu_item->type ) { 586 $object = get_post_type_object( $menu_item->object ); 587 if ( $object ) { 588 $menu_item->type_label = $object->labels->singular_name; 589 } else { 590 $menu_item->type_label = $menu_item->object; 591 $menu_item->_invalid = true; 592 } 593 594 $menu_item->url = get_permalink( $menu_item->object_id ); 595 596 $original_object = get_post( $menu_item->object_id ); 597 $original_title = $original_object->post_title; 598 $menu_item->title = '' == $menu_item->post_title ? $original_title : $menu_item->post_title; 599 600 } elseif ( 'taxonomy' == $menu_item->type ) { 601 $object = get_taxonomy( $menu_item->object ); 602 if ( $object ) { 603 $menu_item->type_label = $object->labels->singular_name; 604 } else { 605 $menu_item->type_label = $menu_item->object; 606 $menu_item->_invalid = true; 607 } 608 609 $term_url = get_term_link( (int) $menu_item->object_id, $menu_item->object ); 610 $menu_item->url = !is_wp_error( $term_url ) ? $term_url : ''; 611 612 $original_title = get_term_field( 'name', $menu_item->object_id, $menu_item->object, 'raw' ); 613 if ( is_wp_error( $original_title ) ) 614 $original_title = false; 615 $menu_item->title = '' == $menu_item->post_title ? $original_title : $menu_item->post_title; 616 617 } else { 618 $menu_item->type_label = __('Custom'); 619 $menu_item->title = $menu_item->post_title; 620 $menu_item->url = empty( $menu_item->url ) ? get_post_meta( $menu_item->ID, '_menu_item_url', true ) : $menu_item->url; 621 } 622 623 $menu_item->target = empty( $menu_item->target ) ? get_post_meta( $menu_item->ID, '_menu_item_target', true ) : $menu_item->target; 624 625 $menu_item->attr_title = empty( $menu_item->attr_title ) ? apply_filters( 'nav_menu_attr_title', $menu_item->post_excerpt ) : $menu_item->attr_title; 626 627 if ( empty( $menu_item->description ) ) 628 $menu_item->description = apply_filters( 'nav_menu_description', wp_trim_words( $menu_item->post_content, 200 ) ); 629 630 $menu_item->classes = empty( $menu_item->classes ) ? (array) get_post_meta( $menu_item->ID, '_menu_item_classes', true ) : $menu_item->classes; 631 $menu_item->xfn = empty( $menu_item->xfn ) ? get_post_meta( $menu_item->ID, '_menu_item_xfn', true ) : $menu_item->xfn; 632 } else { 633 $menu_item->db_id = 0; 634 $menu_item->menu_item_parent = 0; 635 $menu_item->object_id = (int) $menu_item->ID; 636 $menu_item->type = 'post_type'; 637 638 $object = get_post_type_object( $menu_item->post_type ); 639 $menu_item->object = $object->name; 640 $menu_item->type_label = $object->labels->singular_name; 641 642 if ( '' === $menu_item->post_title ) 643 $menu_item->post_title = sprintf( __( '#%d (no title)' ), $menu_item->ID ); 644 645 $menu_item->title = $menu_item->post_title; 646 $menu_item->url = get_permalink( $menu_item->ID ); 647 $menu_item->target = ''; 648 649 $menu_item->attr_title = apply_filters( 'nav_menu_attr_title', '' ); 650 $menu_item->description = apply_filters( 'nav_menu_description', '' ); 651 $menu_item->classes = array(); 652 $menu_item->xfn = ''; 653 } 654 } elseif ( isset( $menu_item->taxonomy ) ) { 655 $menu_item->ID = $menu_item->term_id; 656 $menu_item->db_id = 0; 657 $menu_item->menu_item_parent = 0; 658 $menu_item->object_id = (int) $menu_item->term_id; 659 $menu_item->post_parent = (int) $menu_item->parent; 660 $menu_item->type = 'taxonomy'; 661 662 $object = get_taxonomy( $menu_item->taxonomy ); 663 $menu_item->object = $object->name; 664 $menu_item->type_label = $object->labels->singular_name; 665 666 $menu_item->title = $menu_item->name; 667 $menu_item->url = get_term_link( $menu_item, $menu_item->taxonomy ); 668 $menu_item->target = ''; 669 $menu_item->attr_title = ''; 670 $menu_item->description = get_term_field( 'description', $menu_item->term_id, $menu_item->taxonomy ); 671 $menu_item->classes = array(); 672 $menu_item->xfn = ''; 673 674 } 675 676 return apply_filters( 'wp_setup_nav_menu_item', $menu_item ); 677 } 678 679 /** 680 * Get the menu items associated with a particular object. 681 * 682 * @since 3.0.0 683 * 684 * @param int $object_id The ID of the original object. 685 * @param string $object_type The type of object, such as "taxonomy" or "post_type." 686 * @param string $taxonomy If $object_type is "taxonomy", $taxonomy is the name of the tax that $object_id belongs to 687 * @return array The array of menu item IDs; empty array if none; 688 */ 689 function wp_get_associated_nav_menu_items( $object_id = 0, $object_type = 'post_type', $taxonomy = '' ) { 690 $object_id = (int) $object_id; 691 $menu_item_ids = array(); 692 693 $query = new WP_Query; 694 $menu_items = $query->query( 695 array( 696 'meta_key' => '_menu_item_object_id', 697 'meta_value' => $object_id, 698 'post_status' => 'any', 699 'post_type' => 'nav_menu_item', 700 'posts_per_page' => -1, 701 ) 702 ); 703 foreach( (array) $menu_items as $menu_item ) { 704 if ( isset( $menu_item->ID ) && is_nav_menu_item( $menu_item->ID ) ) { 705 if ( get_post_meta( $menu_item->ID, '_menu_item_type', true ) !== $object_type || 706 get_post_meta( $menu_item->ID, '_menu_item_object', true ) !== $taxonomy ) 707 continue; 708 709 $menu_item_ids[] = (int) $menu_item->ID; 710 } 711 } 712 713 return array_unique( $menu_item_ids ); 714 } 715 716 /** 717 * Callback for handling a menu item when its original object is deleted. 718 * 719 * @since 3.0.0 720 * @access private 721 * 722 * @param int $object_id The ID of the original object being trashed. 723 * 724 */ 725 function _wp_delete_post_menu_item( $object_id = 0 ) { 726 $object_id = (int) $object_id; 727 728 $menu_item_ids = wp_get_associated_nav_menu_items( $object_id, 'post_type' ); 729 730 foreach( (array) $menu_item_ids as $menu_item_id ) { 731 wp_delete_post( $menu_item_id, true ); 732 } 733 } 734 735 /** 736 * Callback for handling a menu item when its original object is deleted. 737 * 738 * @since 3.0.0 739 * @access private 740 * 741 * @param int $object_id The ID of the original object being trashed. 742 * 743 */ 744 function _wp_delete_tax_menu_item( $object_id = 0, $tt_id, $taxonomy ) { 745 $object_id = (int) $object_id; 746 747 $menu_item_ids = wp_get_associated_nav_menu_items( $object_id, 'taxonomy', $taxonomy ); 748 749 foreach( (array) $menu_item_ids as $menu_item_id ) { 750 wp_delete_post( $menu_item_id, true ); 751 } 752 } 753 754 /** 755 * Automatically add newly published page objects to menus with that as an option. 756 * 757 * @since 3.0.0 758 * @access private 759 * 760 * @param string $new_status The new status of the post object. 761 * @param string $old_status The old status of the post object. 762 * @param object $post The post object being transitioned from one status to another. 763 * @return void 764 */ 765 function _wp_auto_add_pages_to_menu( $new_status, $old_status, $post ) { 766 if ( 'publish' != $new_status || 'publish' == $old_status || 'page' != $post->post_type ) 767 return; 768 if ( ! empty( $post->post_parent ) ) 769 return; 770 $auto_add = get_option( 'nav_menu_options' ); 771 if ( empty( $auto_add ) || ! is_array( $auto_add ) || ! isset( $auto_add['auto_add'] ) ) 772 return; 773 $auto_add = $auto_add['auto_add']; 774 if ( empty( $auto_add ) || ! is_array( $auto_add ) ) 775 return; 776 777 $args = array( 778 'menu-item-object-id' => $post->ID, 779 'menu-item-object' => $post->post_type, 780 'menu-item-type' => 'post_type', 781 'menu-item-status' => 'publish', 782 ); 783 784 foreach ( $auto_add as $menu_id ) { 785 $items = wp_get_nav_menu_items( $menu_id, array( 'post_status' => 'publish,draft' ) ); 786 if ( ! is_array( $items ) ) 787 continue; 788 foreach ( $items as $item ) { 789 if ( $post->ID == $item->object_id ) 790 continue 2; 791 } 792 wp_update_nav_menu_item( $menu_id, 0, $args ); 793 } 794 }
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| Generated: Tue Mar 25 01:41:18 2014 | WordPress honlapkészítés: online1.hu |