class-acf-field-post_object.php
| 1 | <?php |
| 2 | |
| 3 | if ( ! class_exists( 'acf_field_post_object' ) ) : |
| 4 | |
| 5 | class acf_field_post_object extends acf_field { |
| 6 | |
| 7 | |
| 8 | /* |
| 9 | * __construct |
| 10 | * |
| 11 | * This function will setup the field type data |
| 12 | * |
| 13 | * @type function |
| 14 | * @date 5/03/2014 |
| 15 | * @since 5.0.0 |
| 16 | * |
| 17 | * @param n/a |
| 18 | * @return n/a |
| 19 | */ |
| 20 | |
| 21 | function initialize() { |
| 22 | |
| 23 | // vars |
| 24 | $this->name = 'post_object'; |
| 25 | $this->label = __( 'Post Object', 'acf' ); |
| 26 | $this->category = 'relational'; |
| 27 | $this->defaults = array( |
| 28 | 'post_type' => array(), |
| 29 | 'taxonomy' => array(), |
| 30 | 'allow_null' => 0, |
| 31 | 'multiple' => 0, |
| 32 | 'return_format' => 'object', |
| 33 | 'ui' => 1, |
| 34 | ); |
| 35 | |
| 36 | // extra |
| 37 | add_action( 'wp_ajax_acf/fields/post_object/query', array( $this, 'ajax_query' ) ); |
| 38 | add_action( 'wp_ajax_nopriv_acf/fields/post_object/query', array( $this, 'ajax_query' ) ); |
| 39 | |
| 40 | } |
| 41 | |
| 42 | |
| 43 | /* |
| 44 | * ajax_query |
| 45 | * |
| 46 | * description |
| 47 | * |
| 48 | * @type function |
| 49 | * @date 24/10/13 |
| 50 | * @since 5.0.0 |
| 51 | * |
| 52 | * @param $post_id (int) |
| 53 | * @return $post_id (int) |
| 54 | */ |
| 55 | |
| 56 | function ajax_query() { |
| 57 | |
| 58 | // validate |
| 59 | if ( ! acf_verify_ajax() ) { |
| 60 | die(); |
| 61 | } |
| 62 | |
| 63 | // get choices |
| 64 | $response = $this->get_ajax_query( $_POST ); |
| 65 | |
| 66 | // return |
| 67 | acf_send_ajax_results( $response ); |
| 68 | |
| 69 | } |
| 70 | |
| 71 | |
| 72 | /* |
| 73 | * get_ajax_query |
| 74 | * |
| 75 | * This function will return an array of data formatted for use in a select2 AJAX response |
| 76 | * |
| 77 | * @type function |
| 78 | * @date 15/10/2014 |
| 79 | * @since 5.0.9 |
| 80 | * |
| 81 | * @param $options (array) |
| 82 | * @return (array) |
| 83 | */ |
| 84 | |
| 85 | function get_ajax_query( $options = array() ) { |
| 86 | |
| 87 | // defaults |
| 88 | $options = acf_parse_args( |
| 89 | $options, |
| 90 | array( |
| 91 | 'post_id' => 0, |
| 92 | 's' => '', |
| 93 | 'field_key' => '', |
| 94 | 'paged' => 1, |
| 95 | ) |
| 96 | ); |
| 97 | |
| 98 | // load field |
| 99 | $field = acf_get_field( $options['field_key'] ); |
| 100 | if ( ! $field ) { |
| 101 | return false; |
| 102 | } |
| 103 | |
| 104 | // vars |
| 105 | $results = array(); |
| 106 | $args = array(); |
| 107 | $s = false; |
| 108 | $is_search = false; |
| 109 | |
| 110 | // paged |
| 111 | $args['posts_per_page'] = 20; |
| 112 | $args['paged'] = $options['paged']; |
| 113 | |
| 114 | // search |
| 115 | if ( $options['s'] !== '' ) { |
| 116 | |
| 117 | // strip slashes (search may be integer) |
| 118 | $s = wp_unslash( strval( $options['s'] ) ); |
| 119 | |
| 120 | // update vars |
| 121 | $args['s'] = $s; |
| 122 | $is_search = true; |
| 123 | |
| 124 | } |
| 125 | |
| 126 | // post_type |
| 127 | if ( ! empty( $field['post_type'] ) ) { |
| 128 | |
| 129 | $args['post_type'] = acf_get_array( $field['post_type'] ); |
| 130 | |
| 131 | } else { |
| 132 | |
| 133 | $args['post_type'] = acf_get_post_types(); |
| 134 | |
| 135 | } |
| 136 | |
| 137 | // taxonomy |
| 138 | if ( ! empty( $field['taxonomy'] ) ) { |
| 139 | |
| 140 | // vars |
| 141 | $terms = acf_decode_taxonomy_terms( $field['taxonomy'] ); |
| 142 | |
| 143 | // append to $args |
| 144 | $args['tax_query'] = array(); |
| 145 | |
| 146 | // now create the tax queries |
| 147 | foreach ( $terms as $k => $v ) { |
| 148 | |
| 149 | $args['tax_query'][] = array( |
| 150 | 'taxonomy' => $k, |
| 151 | 'field' => 'slug', |
| 152 | 'terms' => $v, |
| 153 | ); |
| 154 | |
| 155 | } |
| 156 | } |
| 157 | |
| 158 | // filters |
| 159 | $args = apply_filters( 'acf/fields/post_object/query', $args, $field, $options['post_id'] ); |
| 160 | $args = apply_filters( 'acf/fields/post_object/query/name=' . $field['name'], $args, $field, $options['post_id'] ); |
| 161 | $args = apply_filters( 'acf/fields/post_object/query/key=' . $field['key'], $args, $field, $options['post_id'] ); |
| 162 | |
| 163 | // get posts grouped by post type |
| 164 | $groups = acf_get_grouped_posts( $args ); |
| 165 | |
| 166 | // bail early if no posts |
| 167 | if ( empty( $groups ) ) { |
| 168 | return false; |
| 169 | } |
| 170 | |
| 171 | // loop |
| 172 | foreach ( array_keys( $groups ) as $group_title ) { |
| 173 | |
| 174 | // vars |
| 175 | $posts = acf_extract_var( $groups, $group_title ); |
| 176 | |
| 177 | // data |
| 178 | $data = array( |
| 179 | 'text' => $group_title, |
| 180 | 'children' => array(), |
| 181 | ); |
| 182 | |
| 183 | // convert post objects to post titles |
| 184 | foreach ( array_keys( $posts ) as $post_id ) { |
| 185 | |
| 186 | $posts[ $post_id ] = $this->get_post_title( $posts[ $post_id ], $field, $options['post_id'], $is_search ); |
| 187 | |
| 188 | } |
| 189 | |
| 190 | // order posts by search |
| 191 | if ( $is_search && empty( $args['orderby'] ) && isset( $args['s'] ) ) { |
| 192 | |
| 193 | $posts = acf_order_by_search( $posts, $args['s'] ); |
| 194 | |
| 195 | } |
| 196 | |
| 197 | // append to $data |
| 198 | foreach ( array_keys( $posts ) as $post_id ) { |
| 199 | |
| 200 | $data['children'][] = $this->get_post_result( $post_id, $posts[ $post_id ] ); |
| 201 | |
| 202 | } |
| 203 | |
| 204 | // append to $results |
| 205 | $results[] = $data; |
| 206 | |
| 207 | } |
| 208 | |
| 209 | // optgroup or single |
| 210 | $post_type = acf_get_array( $args['post_type'] ); |
| 211 | if ( count( $post_type ) == 1 ) { |
| 212 | $results = $results[0]['children']; |
| 213 | } |
| 214 | |
| 215 | // vars |
| 216 | $response = array( |
| 217 | 'results' => $results, |
| 218 | 'limit' => $args['posts_per_page'], |
| 219 | ); |
| 220 | |
| 221 | // return |
| 222 | return $response; |
| 223 | |
| 224 | } |
| 225 | |
| 226 | |
| 227 | /* |
| 228 | * get_post_result |
| 229 | * |
| 230 | * This function will return an array containing id, text and maybe description data |
| 231 | * |
| 232 | * @type function |
| 233 | * @date 7/07/2016 |
| 234 | * @since 5.4.0 |
| 235 | * |
| 236 | * @param $id (mixed) |
| 237 | * @param $text (string) |
| 238 | * @return (array) |
| 239 | */ |
| 240 | |
| 241 | function get_post_result( $id, $text ) { |
| 242 | |
| 243 | // vars |
| 244 | $result = array( |
| 245 | 'id' => $id, |
| 246 | 'text' => $text, |
| 247 | ); |
| 248 | |
| 249 | // look for parent |
| 250 | $search = '| ' . __( 'Parent', 'acf' ) . ':'; |
| 251 | $pos = strpos( $text, $search ); |
| 252 | |
| 253 | if ( $pos !== false ) { |
| 254 | |
| 255 | $result['description'] = substr( $text, $pos + 2 ); |
| 256 | $result['text'] = substr( $text, 0, $pos ); |
| 257 | |
| 258 | } |
| 259 | |
| 260 | // return |
| 261 | return $result; |
| 262 | |
| 263 | } |
| 264 | |
| 265 | |
| 266 | /* |
| 267 | * get_post_title |
| 268 | * |
| 269 | * This function returns the HTML for a result |
| 270 | * |
| 271 | * @type function |
| 272 | * @date 1/11/2013 |
| 273 | * @since 5.0.0 |
| 274 | * |
| 275 | * @param $post (object) |
| 276 | * @param $field (array) |
| 277 | * @param $post_id (int) the post_id to which this value is saved to |
| 278 | * @return (string) |
| 279 | */ |
| 280 | |
| 281 | function get_post_title( $post, $field, $post_id = 0, $is_search = 0 ) { |
| 282 | |
| 283 | // get post_id |
| 284 | if ( ! $post_id ) { |
| 285 | $post_id = acf_get_form_data( 'post_id' ); |
| 286 | } |
| 287 | |
| 288 | // vars |
| 289 | $title = acf_get_post_title( $post, $is_search ); |
| 290 | |
| 291 | // filters |
| 292 | $title = apply_filters( 'acf/fields/post_object/result', $title, $post, $field, $post_id ); |
| 293 | $title = apply_filters( 'acf/fields/post_object/result/name=' . $field['_name'], $title, $post, $field, $post_id ); |
| 294 | $title = apply_filters( 'acf/fields/post_object/result/key=' . $field['key'], $title, $post, $field, $post_id ); |
| 295 | |
| 296 | // return |
| 297 | return $title; |
| 298 | } |
| 299 | |
| 300 | |
| 301 | /* |
| 302 | * render_field() |
| 303 | * |
| 304 | * Create the HTML interface for your field |
| 305 | * |
| 306 | * @param $field - an array holding all the field's data |
| 307 | * |
| 308 | * @type action |
| 309 | * @since 3.6 |
| 310 | * @date 23/01/13 |
| 311 | */ |
| 312 | |
| 313 | function render_field( $field ) { |
| 314 | |
| 315 | // Change Field into a select |
| 316 | $field['type'] = 'select'; |
| 317 | $field['ui'] = 1; |
| 318 | $field['ajax'] = 1; |
| 319 | $field['choices'] = array(); |
| 320 | |
| 321 | // load posts |
| 322 | $posts = $this->get_posts( $field['value'], $field ); |
| 323 | |
| 324 | if ( $posts ) { |
| 325 | |
| 326 | foreach ( array_keys( $posts ) as $i ) { |
| 327 | |
| 328 | // vars |
| 329 | $post = acf_extract_var( $posts, $i ); |
| 330 | |
| 331 | // append to choices |
| 332 | $field['choices'][ $post->ID ] = $this->get_post_title( $post, $field ); |
| 333 | |
| 334 | } |
| 335 | } |
| 336 | |
| 337 | // render |
| 338 | acf_render_field( $field ); |
| 339 | |
| 340 | } |
| 341 | |
| 342 | |
| 343 | /* |
| 344 | * render_field_settings() |
| 345 | * |
| 346 | * Create extra options for your field. This is rendered when editing a field. |
| 347 | * The value of $field['name'] can be used (like bellow) to save extra data to the $field |
| 348 | * |
| 349 | * @type action |
| 350 | * @since 3.6 |
| 351 | * @date 23/01/13 |
| 352 | * |
| 353 | * @param $field - an array holding all the field's data |
| 354 | */ |
| 355 | function render_field_settings( $field ) { |
| 356 | acf_render_field_setting( |
| 357 | $field, |
| 358 | array( |
| 359 | 'label' => __( 'Filter by Post Type', 'acf' ), |
| 360 | 'instructions' => '', |
| 361 | 'type' => 'select', |
| 362 | 'name' => 'post_type', |
| 363 | 'choices' => acf_get_pretty_post_types(), |
| 364 | 'multiple' => 1, |
| 365 | 'ui' => 1, |
| 366 | 'allow_null' => 1, |
| 367 | 'placeholder' => __( 'All post types', 'acf' ), |
| 368 | ) |
| 369 | ); |
| 370 | |
| 371 | acf_render_field_setting( |
| 372 | $field, |
| 373 | array( |
| 374 | 'label' => __( 'Filter by Taxonomy', 'acf' ), |
| 375 | 'instructions' => '', |
| 376 | 'type' => 'select', |
| 377 | 'name' => 'taxonomy', |
| 378 | 'choices' => acf_get_taxonomy_terms(), |
| 379 | 'multiple' => 1, |
| 380 | 'ui' => 1, |
| 381 | 'allow_null' => 1, |
| 382 | 'placeholder' => __( 'All taxonomies', 'acf' ), |
| 383 | ) |
| 384 | ); |
| 385 | |
| 386 | acf_render_field_setting( |
| 387 | $field, |
| 388 | array( |
| 389 | 'label' => __( 'Return Format', 'acf' ), |
| 390 | 'instructions' => '', |
| 391 | 'type' => 'radio', |
| 392 | 'name' => 'return_format', |
| 393 | 'choices' => array( |
| 394 | 'object' => __( 'Post Object', 'acf' ), |
| 395 | 'id' => __( 'Post ID', 'acf' ), |
| 396 | ), |
| 397 | 'layout' => 'horizontal', |
| 398 | ) |
| 399 | ); |
| 400 | |
| 401 | acf_render_field_setting( |
| 402 | $field, |
| 403 | array( |
| 404 | 'label' => __( 'Select multiple values?', 'acf' ), |
| 405 | 'instructions' => '', |
| 406 | 'name' => 'multiple', |
| 407 | 'type' => 'true_false', |
| 408 | 'ui' => 1, |
| 409 | ) |
| 410 | ); |
| 411 | |
| 412 | } |
| 413 | |
| 414 | /** |
| 415 | * Renders the field settings used in the "Validation" tab. |
| 416 | * |
| 417 | * @since 6.0 |
| 418 | * |
| 419 | * @param array $field The field settings array. |
| 420 | * @return void |
| 421 | */ |
| 422 | function render_field_validation_settings( $field ) { |
| 423 | acf_render_field_setting( |
| 424 | $field, |
| 425 | array( |
| 426 | 'label' => __( 'Allow Null?', 'acf' ), |
| 427 | 'instructions' => '', |
| 428 | 'name' => 'allow_null', |
| 429 | 'type' => 'true_false', |
| 430 | 'ui' => 1, |
| 431 | ) |
| 432 | ); |
| 433 | } |
| 434 | |
| 435 | /* |
| 436 | * load_value() |
| 437 | * |
| 438 | * This filter is applied to the $value after it is loaded from the db |
| 439 | * |
| 440 | * @type filter |
| 441 | * @since 3.6 |
| 442 | * @date 23/01/13 |
| 443 | * |
| 444 | * @param $value (mixed) the value found in the database |
| 445 | * @param $post_id (mixed) the $post_id from which the value was loaded |
| 446 | * @param $field (array) the field array holding all the field options |
| 447 | * @return $value |
| 448 | */ |
| 449 | |
| 450 | function load_value( $value, $post_id, $field ) { |
| 451 | |
| 452 | // ACF4 null |
| 453 | if ( $value === 'null' ) { |
| 454 | return false; |
| 455 | } |
| 456 | |
| 457 | // return |
| 458 | return $value; |
| 459 | |
| 460 | } |
| 461 | |
| 462 | |
| 463 | /* |
| 464 | * format_value() |
| 465 | * |
| 466 | * This filter is appied to the $value after it is loaded from the db and before it is returned to the template |
| 467 | * |
| 468 | * @type filter |
| 469 | * @since 3.6 |
| 470 | * @date 23/01/13 |
| 471 | * |
| 472 | * @param $value (mixed) the value which was loaded from the database |
| 473 | * @param $post_id (mixed) the $post_id from which the value was loaded |
| 474 | * @param $field (array) the field array holding all the field options |
| 475 | * |
| 476 | * @return $value (mixed) the modified value |
| 477 | */ |
| 478 | |
| 479 | function format_value( $value, $post_id, $field ) { |
| 480 | |
| 481 | // numeric |
| 482 | $value = acf_get_numeric( $value ); |
| 483 | |
| 484 | // bail early if no value |
| 485 | if ( empty( $value ) ) { |
| 486 | return false; |
| 487 | } |
| 488 | |
| 489 | // load posts if needed |
| 490 | if ( $field['return_format'] == 'object' ) { |
| 491 | |
| 492 | $value = $this->get_posts( $value, $field ); |
| 493 | |
| 494 | } |
| 495 | |
| 496 | // convert back from array if neccessary |
| 497 | if ( ! $field['multiple'] && is_array( $value ) ) { |
| 498 | |
| 499 | $value = current( $value ); |
| 500 | |
| 501 | } |
| 502 | |
| 503 | // return value |
| 504 | return $value; |
| 505 | |
| 506 | } |
| 507 | |
| 508 | |
| 509 | /* |
| 510 | * update_value() |
| 511 | * |
| 512 | * This filter is appied to the $value before it is updated in the db |
| 513 | * |
| 514 | * @type filter |
| 515 | * @since 3.6 |
| 516 | * @date 23/01/13 |
| 517 | * |
| 518 | * @param $value - the value which will be saved in the database |
| 519 | * @param $post_id - the $post_id of which the value will be saved |
| 520 | * @param $field - the field array holding all the field options |
| 521 | * |
| 522 | * @return $value - the modified value |
| 523 | */ |
| 524 | |
| 525 | function update_value( $value, $post_id, $field ) { |
| 526 | |
| 527 | // Bail early if no value. |
| 528 | if ( empty( $value ) ) { |
| 529 | return $value; |
| 530 | } |
| 531 | |
| 532 | // Format array of values. |
| 533 | // - ensure each value is an id. |
| 534 | // - Parse each id as string for SQL LIKE queries. |
| 535 | if ( acf_is_sequential_array( $value ) ) { |
| 536 | $value = array_map( 'acf_idval', $value ); |
| 537 | $value = array_map( 'strval', $value ); |
| 538 | |
| 539 | // Parse single value for id. |
| 540 | } else { |
| 541 | $value = acf_idval( $value ); |
| 542 | } |
| 543 | |
| 544 | // Return value. |
| 545 | return $value; |
| 546 | } |
| 547 | |
| 548 | |
| 549 | /* |
| 550 | * get_posts |
| 551 | * |
| 552 | * This function will return an array of posts for a given field value |
| 553 | * |
| 554 | * @type function |
| 555 | * @date 13/06/2014 |
| 556 | * @since 5.0.0 |
| 557 | * |
| 558 | * @param $value (array) |
| 559 | * @return $value |
| 560 | */ |
| 561 | |
| 562 | function get_posts( $value, $field ) { |
| 563 | |
| 564 | // numeric |
| 565 | $value = acf_get_numeric( $value ); |
| 566 | |
| 567 | // bail early if no value |
| 568 | if ( empty( $value ) ) { |
| 569 | return false; |
| 570 | } |
| 571 | |
| 572 | // get posts |
| 573 | $posts = acf_get_posts( |
| 574 | array( |
| 575 | 'post__in' => $value, |
| 576 | 'post_type' => $field['post_type'], |
| 577 | ) |
| 578 | ); |
| 579 | |
| 580 | // return |
| 581 | return $posts; |
| 582 | |
| 583 | } |
| 584 | |
| 585 | /** |
| 586 | * Validates post object fields updated via the REST API. |
| 587 | * |
| 588 | * @param bool $valid |
| 589 | * @param int $value |
| 590 | * @param array $field |
| 591 | * |
| 592 | * @return bool|WP_Error |
| 593 | */ |
| 594 | public function validate_rest_value( $valid, $value, $field ) { |
| 595 | if ( is_null( $value ) ) { |
| 596 | return $valid; |
| 597 | } |
| 598 | |
| 599 | $param = sprintf( '%s[%s]', $field['prefix'], $field['name'] ); |
| 600 | $data = array( 'param' => $param ); |
| 601 | $value = is_array( $value ) ? $value : array( $value ); |
| 602 | |
| 603 | $invalid_posts = array(); |
| 604 | $post_type_errors = array(); |
| 605 | $taxonomy_errors = array(); |
| 606 | |
| 607 | foreach ( $value as $post_id ) { |
| 608 | if ( is_string( $post_id ) ) { |
| 609 | continue; |
| 610 | } |
| 611 | |
| 612 | $post_type = get_post_type( $post_id ); |
| 613 | if ( ! $post_type ) { |
| 614 | $invalid_posts[] = $post_id; |
| 615 | continue; |
| 616 | } |
| 617 | |
| 618 | if ( |
| 619 | is_array( $field['post_type'] ) && |
| 620 | ! empty( $field['post_type'] ) && |
| 621 | ! in_array( $post_type, $field['post_type'] ) |
| 622 | ) { |
| 623 | $post_type_errors[] = $post_id; |
| 624 | } |
| 625 | |
| 626 | if ( is_array( $field['taxonomy'] ) && ! empty( $field['taxonomy'] ) ) { |
| 627 | $found = false; |
| 628 | foreach ( $field['taxonomy'] as $taxonomy_term ) { |
| 629 | $decoded = acf_decode_taxonomy_term( $taxonomy_term ); |
| 630 | if ( $decoded && is_object_in_term( $post_id, $decoded['taxonomy'], $decoded['term'] ) ) { |
| 631 | $found = true; |
| 632 | break; |
| 633 | } |
| 634 | } |
| 635 | |
| 636 | if ( ! $found ) { |
| 637 | $taxonomy_errors[] = $post_id; |
| 638 | } |
| 639 | } |
| 640 | } |
| 641 | |
| 642 | if ( count( $invalid_posts ) ) { |
| 643 | $error = sprintf( |
| 644 | __( '%1$s must have a valid post ID.', 'acf' ), |
| 645 | $param |
| 646 | ); |
| 647 | $data['value'] = $invalid_posts; |
| 648 | return new WP_Error( 'rest_invalid_param', $error, $data ); |
| 649 | } |
| 650 | |
| 651 | if ( count( $post_type_errors ) ) { |
| 652 | $error = sprintf( |
| 653 | _n( |
| 654 | '%1$s must be of post type %2$s.', |
| 655 | '%1$s must be of one of the following post types: %2$s', |
| 656 | count( $field['post_type'] ), |
| 657 | 'acf' |
| 658 | ), |
| 659 | $param, |
| 660 | count( $field['post_type'] ) > 1 ? implode( ', ', $field['post_type'] ) : $field['post_type'][0] |
| 661 | ); |
| 662 | $data['value'] = $post_type_errors; |
| 663 | |
| 664 | return new WP_Error( 'rest_invalid_param', $error, $data ); |
| 665 | } |
| 666 | |
| 667 | if ( count( $taxonomy_errors ) ) { |
| 668 | $error = sprintf( |
| 669 | _n( |
| 670 | '%1$s must have term %2$s.', |
| 671 | '%1$s must have one of the following terms: %2$s', |
| 672 | count( $field['taxonomy'] ), |
| 673 | 'acf' |
| 674 | ), |
| 675 | $param, |
| 676 | count( $field['taxonomy'] ) > 1 ? implode( ', ', $field['taxonomy'] ) : $field['taxonomy'][0] |
| 677 | ); |
| 678 | $data['value'] = $taxonomy_errors; |
| 679 | |
| 680 | return new WP_Error( 'rest_invalid_param', $error, $data ); |
| 681 | } |
| 682 | |
| 683 | return $valid; |
| 684 | } |
| 685 | |
| 686 | /** |
| 687 | * Return the schema array for the REST API. |
| 688 | * |
| 689 | * @param array $field |
| 690 | * @return array |
| 691 | */ |
| 692 | public function get_rest_schema( array $field ) { |
| 693 | $schema = array( |
| 694 | 'type' => array( 'integer', 'array', 'null' ), |
| 695 | 'required' => ! empty( $field['required'] ), |
| 696 | 'items' => array( |
| 697 | 'type' => 'integer', |
| 698 | ), |
| 699 | ); |
| 700 | |
| 701 | if ( empty( $field['allow_null'] ) ) { |
| 702 | $schema['minItems'] = 1; |
| 703 | } |
| 704 | |
| 705 | if ( empty( $field['multiple'] ) ) { |
| 706 | $schema['maxItems'] = 1; |
| 707 | } |
| 708 | |
| 709 | return $schema; |
| 710 | } |
| 711 | |
| 712 | /** |
| 713 | * @see \acf_field::get_rest_links() |
| 714 | * @param mixed $value The raw (unformatted) field value. |
| 715 | * @param int|string $post_id |
| 716 | * @param array $field |
| 717 | * @return array |
| 718 | */ |
| 719 | public function get_rest_links( $value, $post_id, array $field ) { |
| 720 | $links = array(); |
| 721 | |
| 722 | if ( empty( $value ) ) { |
| 723 | return $links; |
| 724 | } |
| 725 | |
| 726 | foreach ( (array) $value as $object_id ) { |
| 727 | if ( ! $post_type = get_post_type( $object_id ) ) { |
| 728 | continue; |
| 729 | } |
| 730 | |
| 731 | if ( ! $post_type_object = get_post_type_object( $post_type ) ) { |
| 732 | continue; |
| 733 | } |
| 734 | |
| 735 | $rest_base = acf_get_object_type_rest_base( $post_type_object ); |
| 736 | $links[] = array( |
| 737 | 'rel' => $post_type_object->name === 'attachment' ? 'acf:attachment' : 'acf:post', |
| 738 | 'href' => rest_url( sprintf( '/wp/v2/%s/%s', $rest_base, $object_id ) ), |
| 739 | 'embeddable' => true, |
| 740 | ); |
| 741 | } |
| 742 | |
| 743 | return $links; |
| 744 | } |
| 745 | |
| 746 | /** |
| 747 | * Apply basic formatting to prepare the value for default REST output. |
| 748 | * |
| 749 | * @param mixed $value |
| 750 | * @param string|int $post_id |
| 751 | * @param array $field |
| 752 | * @return mixed |
| 753 | */ |
| 754 | public function format_value_for_rest( $value, $post_id, array $field ) { |
| 755 | return acf_format_numerics( $value ); |
| 756 | } |
| 757 | |
| 758 | } |
| 759 | |
| 760 | |
| 761 | // initialize |
| 762 | acf_register_field_type( 'acf_field_post_object' ); |
| 763 | |
| 764 | endif; // class_exists check |
| 765 | |
| 766 | |
| 767 |