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1 <?php 2 /** 3 * Site API: WP_Site_Query class 4 * 5 * @package WordPress 6 * @subpackage Sites 7 * @since 4.6.0 8 */ 9 10 /** 11 * Core class used for querying sites. 12 * 13 * @since 4.6.0 14 * 15 * @see WP_Site_Query::__construct() for accepted arguments. 16 */ 17 class WP_Site_Query { 18 19 /** 20 * SQL for database query. 21 * 22 * @since 4.6.0 23 * @var string 24 */ 25 public $request; 26 27 /** 28 * SQL query clauses. 29 * 30 * @since 4.6.0 31 * @var array 32 */ 33 protected $sql_clauses = array( 34 'select' => '', 35 'from' => '', 36 'where' => array(), 37 'groupby' => '', 38 'orderby' => '', 39 'limits' => '', 40 ); 41 42 /** 43 * Metadata query container. 44 * 45 * @since 5.1.0 46 * @var WP_Meta_Query 47 */ 48 public $meta_query = false; 49 50 /** 51 * Metadata query clauses. 52 * 53 * @since 5.1.0 54 * @var array 55 */ 56 protected $meta_query_clauses; 57 58 /** 59 * Date query container. 60 * 61 * @since 4.6.0 62 * @var WP_Date_Query A date query instance. 63 */ 64 public $date_query = false; 65 66 /** 67 * Query vars set by the user. 68 * 69 * @since 4.6.0 70 * @var array 71 */ 72 public $query_vars; 73 74 /** 75 * Default values for query vars. 76 * 77 * @since 4.6.0 78 * @var array 79 */ 80 public $query_var_defaults; 81 82 /** 83 * List of sites located by the query. 84 * 85 * @since 4.6.0 86 * @var array 87 */ 88 public $sites; 89 90 /** 91 * The amount of found sites for the current query. 92 * 93 * @since 4.6.0 94 * @var int 95 */ 96 public $found_sites = 0; 97 98 /** 99 * The number of pages. 100 * 101 * @since 4.6.0 102 * @var int 103 */ 104 public $max_num_pages = 0; 105 106 /** 107 * Sets up the site query, based on the query vars passed. 108 * 109 * @since 4.6.0 110 * @since 4.8.0 Introduced the 'lang_id', 'lang__in', and 'lang__not_in' parameters. 111 * @since 5.1.0 Introduced the 'update_site_meta_cache', 'meta_query', 'meta_key', 112 * 'meta_compare_key', 'meta_value', 'meta_type', and 'meta_compare' parameters. 113 * @since 5.3.0 Introduced the 'meta_type_key' parameter. 114 * 115 * @param string|array $query { 116 * Optional. Array or query string of site query parameters. Default empty. 117 * 118 * @type int[] $site__in Array of site IDs to include. Default empty. 119 * @type int[] $site__not_in Array of site IDs to exclude. Default empty. 120 * @type bool $count Whether to return a site count (true) or array of site objects. 121 * Default false. 122 * @type array $date_query Date query clauses to limit sites by. See WP_Date_Query. 123 * Default null. 124 * @type string $fields Site fields to return. Accepts 'ids' (returns an array of site IDs) 125 * or empty (returns an array of complete site objects). Default empty. 126 * @type int $ID A site ID to only return that site. Default empty. 127 * @type int $number Maximum number of sites to retrieve. Default 100. 128 * @type int $offset Number of sites to offset the query. Used to build LIMIT clause. 129 * Default 0. 130 * @type bool $no_found_rows Whether to disable the `SQL_CALC_FOUND_ROWS` query. Default true. 131 * @type string|array $orderby Site status or array of statuses. Accepts: 132 * - 'id' 133 * - 'domain' 134 * - 'path' 135 * - 'network_id' 136 * - 'last_updated' 137 * - 'registered' 138 * - 'domain_length' 139 * - 'path_length' 140 * - 'site__in' 141 * - 'network__in' 142 * - 'deleted' 143 * - 'mature' 144 * - 'spam' 145 * - 'archived' 146 * - 'public' 147 * - false, an empty array, or 'none' to disable `ORDER BY` clause. 148 * Default 'id'. 149 * @type string $order How to order retrieved sites. Accepts 'ASC', 'DESC'. Default 'ASC'. 150 * @type int $network_id Limit results to those affiliated with a given network ID. If 0, 151 * include all networks. Default 0. 152 * @type int[] $network__in Array of network IDs to include affiliated sites for. Default empty. 153 * @type int[] $network__not_in Array of network IDs to exclude affiliated sites for. Default empty. 154 * @type string $domain Limit results to those affiliated with a given domain. Default empty. 155 * @type string[] $domain__in Array of domains to include affiliated sites for. Default empty. 156 * @type string[] $domain__not_in Array of domains to exclude affiliated sites for. Default empty. 157 * @type string $path Limit results to those affiliated with a given path. Default empty. 158 * @type string[] $path__in Array of paths to include affiliated sites for. Default empty. 159 * @type string[] $path__not_in Array of paths to exclude affiliated sites for. Default empty. 160 * @type int $public Limit results to public sites. Accepts '1' or '0'. Default empty. 161 * @type int $archived Limit results to archived sites. Accepts '1' or '0'. Default empty. 162 * @type int $mature Limit results to mature sites. Accepts '1' or '0'. Default empty. 163 * @type int $spam Limit results to spam sites. Accepts '1' or '0'. Default empty. 164 * @type int $deleted Limit results to deleted sites. Accepts '1' or '0'. Default empty. 165 * @type int $lang_id Limit results to a language ID. Default empty. 166 * @type string[] $lang__in Array of language IDs to include affiliated sites for. Default empty. 167 * @type string[] $lang__not_in Array of language IDs to exclude affiliated sites for. Default empty. 168 * @type string $search Search term(s) to retrieve matching sites for. Default empty. 169 * @type string[] $search_columns Array of column names to be searched. Accepts 'domain' and 'path'. 170 * Default empty array. 171 * @type bool $update_site_cache Whether to prime the cache for found sites. Default true. 172 * @type bool $update_site_meta_cache Whether to prime the metadata cache for found sites. Default true. 173 * @type string|string[] $meta_key Meta key or keys to filter by. 174 * @type string|string[] $meta_value Meta value or values to filter by. 175 * @type string $meta_compare MySQL operator used for comparing the meta value. 176 * See WP_Meta_Query::__construct for accepted values and default value. 177 * @type string $meta_compare_key MySQL operator used for comparing the meta key. 178 * See WP_Meta_Query::__construct for accepted values and default value. 179 * @type string $meta_type MySQL data type that the meta_value column will be CAST to for comparisons. 180 * See WP_Meta_Query::__construct for accepted values and default value. 181 * @type string $meta_type_key MySQL data type that the meta_key column will be CAST to for comparisons. 182 * See WP_Meta_Query::__construct for accepted values and default value. 183 * @type array $meta_query An associative array of WP_Meta_Query arguments. 184 * See WP_Meta_Query::__construct for accepted values. 185 * } 186 */ 187 public function __construct( $query = '' ) { 188 $this->query_var_defaults = array( 189 'fields' => '', 190 'ID' => '', 191 'site__in' => '', 192 'site__not_in' => '', 193 'number' => 100, 194 'offset' => '', 195 'no_found_rows' => true, 196 'orderby' => 'id', 197 'order' => 'ASC', 198 'network_id' => 0, 199 'network__in' => '', 200 'network__not_in' => '', 201 'domain' => '', 202 'domain__in' => '', 203 'domain__not_in' => '', 204 'path' => '', 205 'path__in' => '', 206 'path__not_in' => '', 207 'public' => null, 208 'archived' => null, 209 'mature' => null, 210 'spam' => null, 211 'deleted' => null, 212 'lang_id' => null, 213 'lang__in' => '', 214 'lang__not_in' => '', 215 'search' => '', 216 'search_columns' => array(), 217 'count' => false, 218 'date_query' => null, // See WP_Date_Query. 219 'update_site_cache' => true, 220 'update_site_meta_cache' => true, 221 'meta_query' => '', 222 'meta_key' => '', 223 'meta_value' => '', 224 'meta_type' => '', 225 'meta_compare' => '', 226 ); 227 228 if ( ! empty( $query ) ) { 229 $this->query( $query ); 230 } 231 } 232 233 /** 234 * Parses arguments passed to the site query with default query parameters. 235 * 236 * @since 4.6.0 237 * 238 * @see WP_Site_Query::__construct() 239 * 240 * @param string|array $query Array or string of WP_Site_Query arguments. See WP_Site_Query::__construct(). 241 */ 242 public function parse_query( $query = '' ) { 243 if ( empty( $query ) ) { 244 $query = $this->query_vars; 245 } 246 247 $this->query_vars = wp_parse_args( $query, $this->query_var_defaults ); 248 249 /** 250 * Fires after the site query vars have been parsed. 251 * 252 * @since 4.6.0 253 * 254 * @param WP_Site_Query $query The WP_Site_Query instance (passed by reference). 255 */ 256 do_action_ref_array( 'parse_site_query', array( &$this ) ); 257 } 258 259 /** 260 * Sets up the WordPress query for retrieving sites. 261 * 262 * @since 4.6.0 263 * 264 * @param string|array $query Array or URL query string of parameters. 265 * @return array|int List of WP_Site objects, a list of site IDs when 'fields' is set to 'ids', 266 * or the number of sites when 'count' is passed as a query var. 267 */ 268 public function query( $query ) { 269 $this->query_vars = wp_parse_args( $query ); 270 271 return $this->get_sites(); 272 } 273 274 /** 275 * Retrieves a list of sites matching the query vars. 276 * 277 * @since 4.6.0 278 * 279 * @global wpdb $wpdb WordPress database abstraction object. 280 * 281 * @return array|int List of WP_Site objects, a list of site IDs when 'fields' is set to 'ids', 282 * or the number of sites when 'count' is passed as a query var. 283 */ 284 public function get_sites() { 285 global $wpdb; 286 287 $this->parse_query(); 288 289 // Parse meta query. 290 $this->meta_query = new WP_Meta_Query(); 291 $this->meta_query->parse_query_vars( $this->query_vars ); 292 293 /** 294 * Fires before sites are retrieved. 295 * 296 * @since 4.6.0 297 * 298 * @param WP_Site_Query $query Current instance of WP_Site_Query (passed by reference). 299 */ 300 do_action_ref_array( 'pre_get_sites', array( &$this ) ); 301 302 // Reparse query vars, in case they were modified in a 'pre_get_sites' callback. 303 $this->meta_query->parse_query_vars( $this->query_vars ); 304 if ( ! empty( $this->meta_query->queries ) ) { 305 $this->meta_query_clauses = $this->meta_query->get_sql( 'blog', $wpdb->blogs, 'blog_id', $this ); 306 } 307 308 $site_data = null; 309 310 /** 311 * Filters the site data before the get_sites query takes place. 312 * 313 * Return a non-null value to bypass WordPress' default site queries. 314 * 315 * The expected return type from this filter depends on the value passed 316 * in the request query vars: 317 * - When `$this->query_vars['count']` is set, the filter should return 318 * the site count as an integer. 319 * - When `'ids' === $this->query_vars['fields']`, the filter should return 320 * an array of site IDs. 321 * - Otherwise the filter should return an array of WP_Site objects. 322 * 323 * Note that if the filter returns an array of site data, it will be assigned 324 * to the `sites` property of the current WP_Site_Query instance. 325 * 326 * Filtering functions that require pagination information are encouraged to set 327 * the `found_sites` and `max_num_pages` properties of the WP_Site_Query object, 328 * passed to the filter by reference. If WP_Site_Query does not perform a database 329 * query, it will not have enough information to generate these values itself. 330 * 331 * @since 5.2.0 332 * @since 5.6.0 The returned array of site data is assigned to the `sites` property 333 * of the current WP_Site_Query instance. 334 * 335 * @param array|int|null $site_data Return an array of site data to short-circuit WP's site query, 336 * the site count as an integer if `$this->query_vars['count']` is set, 337 * or null to run the normal queries. 338 * @param WP_Site_Query $query The WP_Site_Query instance, passed by reference. 339 */ 340 $site_data = apply_filters_ref_array( 'sites_pre_query', array( $site_data, &$this ) ); 341 342 if ( null !== $site_data ) { 343 if ( is_array( $site_data ) && ! $this->query_vars['count'] ) { 344 $this->sites = $site_data; 345 } 346 347 return $site_data; 348 } 349 350 // $args can include anything. Only use the args defined in the query_var_defaults to compute the key. 351 $_args = wp_array_slice_assoc( $this->query_vars, array_keys( $this->query_var_defaults ) ); 352 353 // Ignore the $fields, $update_site_cache, $update_site_meta_cache argument as the queried result will be the same regardless. 354 unset( $_args['fields'], $_args['update_site_cache'], $_args['update_site_meta_cache'] ); 355 356 $key = md5( serialize( $_args ) ); 357 $last_changed = wp_cache_get_last_changed( 'sites' ); 358 359 $cache_key = "get_sites:$key:$last_changed"; 360 $cache_value = wp_cache_get( $cache_key, 'sites' ); 361 362 if ( false === $cache_value ) { 363 $site_ids = $this->get_site_ids(); 364 if ( $site_ids ) { 365 $this->set_found_sites(); 366 } 367 368 $cache_value = array( 369 'site_ids' => $site_ids, 370 'found_sites' => $this->found_sites, 371 ); 372 wp_cache_add( $cache_key, $cache_value, 'sites' ); 373 } else { 374 $site_ids = $cache_value['site_ids']; 375 $this->found_sites = $cache_value['found_sites']; 376 } 377 378 if ( $this->found_sites && $this->query_vars['number'] ) { 379 $this->max_num_pages = ceil( $this->found_sites / $this->query_vars['number'] ); 380 } 381 382 // If querying for a count only, there's nothing more to do. 383 if ( $this->query_vars['count'] ) { 384 // $site_ids is actually a count in this case. 385 return (int) $site_ids; 386 } 387 388 $site_ids = array_map( 'intval', $site_ids ); 389 390 if ( 'ids' === $this->query_vars['fields'] ) { 391 $this->sites = $site_ids; 392 393 return $this->sites; 394 } 395 396 // Prime site network caches. 397 if ( $this->query_vars['update_site_cache'] ) { 398 _prime_site_caches( $site_ids, $this->query_vars['update_site_meta_cache'] ); 399 } 400 401 // Fetch full site objects from the primed cache. 402 $_sites = array(); 403 foreach ( $site_ids as $site_id ) { 404 $_site = get_site( $site_id ); 405 if ( $_site ) { 406 $_sites[] = $_site; 407 } 408 } 409 410 /** 411 * Filters the site query results. 412 * 413 * @since 4.6.0 414 * 415 * @param WP_Site[] $_sites An array of WP_Site objects. 416 * @param WP_Site_Query $query Current instance of WP_Site_Query (passed by reference). 417 */ 418 $_sites = apply_filters_ref_array( 'the_sites', array( $_sites, &$this ) ); 419 420 // Convert to WP_Site instances. 421 $this->sites = array_map( 'get_site', $_sites ); 422 423 return $this->sites; 424 } 425 426 /** 427 * Used internally to get a list of site IDs matching the query vars. 428 * 429 * @since 4.6.0 430 * 431 * @global wpdb $wpdb WordPress database abstraction object. 432 * 433 * @return int|array A single count of site IDs if a count query. An array of site IDs if a full query. 434 */ 435 protected function get_site_ids() { 436 global $wpdb; 437 438 $order = $this->parse_order( $this->query_vars['order'] ); 439 440 // Disable ORDER BY with 'none', an empty array, or boolean false. 441 if ( in_array( $this->query_vars['orderby'], array( 'none', array(), false ), true ) ) { 442 $orderby = ''; 443 } elseif ( ! empty( $this->query_vars['orderby'] ) ) { 444 $ordersby = is_array( $this->query_vars['orderby'] ) ? 445 $this->query_vars['orderby'] : 446 preg_split( '/[,\s]/', $this->query_vars['orderby'] ); 447 448 $orderby_array = array(); 449 foreach ( $ordersby as $_key => $_value ) { 450 if ( ! $_value ) { 451 continue; 452 } 453 454 if ( is_int( $_key ) ) { 455 $_orderby = $_value; 456 $_order = $order; 457 } else { 458 $_orderby = $_key; 459 $_order = $_value; 460 } 461 462 $parsed = $this->parse_orderby( $_orderby ); 463 464 if ( ! $parsed ) { 465 continue; 466 } 467 468 if ( 'site__in' === $_orderby || 'network__in' === $_orderby ) { 469 $orderby_array[] = $parsed; 470 continue; 471 } 472 473 $orderby_array[] = $parsed . ' ' . $this->parse_order( $_order ); 474 } 475 476 $orderby = implode( ', ', $orderby_array ); 477 } else { 478 $orderby = "{$wpdb->blogs}.blog_id $order"; 479 } 480 481 $number = absint( $this->query_vars['number'] ); 482 $offset = absint( $this->query_vars['offset'] ); 483 $limits = ''; 484 485 if ( ! empty( $number ) ) { 486 if ( $offset ) { 487 $limits = 'LIMIT ' . $offset . ',' . $number; 488 } else { 489 $limits = 'LIMIT ' . $number; 490 } 491 } 492 493 if ( $this->query_vars['count'] ) { 494 $fields = 'COUNT(*)'; 495 } else { 496 $fields = "{$wpdb->blogs}.blog_id"; 497 } 498 499 // Parse site IDs for an IN clause. 500 $site_id = absint( $this->query_vars['ID'] ); 501 if ( ! empty( $site_id ) ) { 502 $this->sql_clauses['where']['ID'] = $wpdb->prepare( "{$wpdb->blogs}.blog_id = %d", $site_id ); 503 } 504 505 // Parse site IDs for an IN clause. 506 if ( ! empty( $this->query_vars['site__in'] ) ) { 507 $this->sql_clauses['where']['site__in'] = "{$wpdb->blogs}.blog_id IN ( " . implode( ',', wp_parse_id_list( $this->query_vars['site__in'] ) ) . ' )'; 508 } 509 510 // Parse site IDs for a NOT IN clause. 511 if ( ! empty( $this->query_vars['site__not_in'] ) ) { 512 $this->sql_clauses['where']['site__not_in'] = "{$wpdb->blogs}.blog_id NOT IN ( " . implode( ',', wp_parse_id_list( $this->query_vars['site__not_in'] ) ) . ' )'; 513 } 514 515 $network_id = absint( $this->query_vars['network_id'] ); 516 517 if ( ! empty( $network_id ) ) { 518 $this->sql_clauses['where']['network_id'] = $wpdb->prepare( 'site_id = %d', $network_id ); 519 } 520 521 // Parse site network IDs for an IN clause. 522 if ( ! empty( $this->query_vars['network__in'] ) ) { 523 $this->sql_clauses['where']['network__in'] = 'site_id IN ( ' . implode( ',', wp_parse_id_list( $this->query_vars['network__in'] ) ) . ' )'; 524 } 525 526 // Parse site network IDs for a NOT IN clause. 527 if ( ! empty( $this->query_vars['network__not_in'] ) ) { 528 $this->sql_clauses['where']['network__not_in'] = 'site_id NOT IN ( ' . implode( ',', wp_parse_id_list( $this->query_vars['network__not_in'] ) ) . ' )'; 529 } 530 531 if ( ! empty( $this->query_vars['domain'] ) ) { 532 $this->sql_clauses['where']['domain'] = $wpdb->prepare( 'domain = %s', $this->query_vars['domain'] ); 533 } 534 535 // Parse site domain for an IN clause. 536 if ( is_array( $this->query_vars['domain__in'] ) ) { 537 $this->sql_clauses['where']['domain__in'] = "domain IN ( '" . implode( "', '", $wpdb->_escape( $this->query_vars['domain__in'] ) ) . "' )"; 538 } 539 540 // Parse site domain for a NOT IN clause. 541 if ( is_array( $this->query_vars['domain__not_in'] ) ) { 542 $this->sql_clauses['where']['domain__not_in'] = "domain NOT IN ( '" . implode( "', '", $wpdb->_escape( $this->query_vars['domain__not_in'] ) ) . "' )"; 543 } 544 545 if ( ! empty( $this->query_vars['path'] ) ) { 546 $this->sql_clauses['where']['path'] = $wpdb->prepare( 'path = %s', $this->query_vars['path'] ); 547 } 548 549 // Parse site path for an IN clause. 550 if ( is_array( $this->query_vars['path__in'] ) ) { 551 $this->sql_clauses['where']['path__in'] = "path IN ( '" . implode( "', '", $wpdb->_escape( $this->query_vars['path__in'] ) ) . "' )"; 552 } 553 554 // Parse site path for a NOT IN clause. 555 if ( is_array( $this->query_vars['path__not_in'] ) ) { 556 $this->sql_clauses['where']['path__not_in'] = "path NOT IN ( '" . implode( "', '", $wpdb->_escape( $this->query_vars['path__not_in'] ) ) . "' )"; 557 } 558 559 if ( is_numeric( $this->query_vars['archived'] ) ) { 560 $archived = absint( $this->query_vars['archived'] ); 561 $this->sql_clauses['where']['archived'] = $wpdb->prepare( 'archived = %s ', absint( $archived ) ); 562 } 563 564 if ( is_numeric( $this->query_vars['mature'] ) ) { 565 $mature = absint( $this->query_vars['mature'] ); 566 $this->sql_clauses['where']['mature'] = $wpdb->prepare( 'mature = %d ', $mature ); 567 } 568 569 if ( is_numeric( $this->query_vars['spam'] ) ) { 570 $spam = absint( $this->query_vars['spam'] ); 571 $this->sql_clauses['where']['spam'] = $wpdb->prepare( 'spam = %d ', $spam ); 572 } 573 574 if ( is_numeric( $this->query_vars['deleted'] ) ) { 575 $deleted = absint( $this->query_vars['deleted'] ); 576 $this->sql_clauses['where']['deleted'] = $wpdb->prepare( 'deleted = %d ', $deleted ); 577 } 578 579 if ( is_numeric( $this->query_vars['public'] ) ) { 580 $public = absint( $this->query_vars['public'] ); 581 $this->sql_clauses['where']['public'] = $wpdb->prepare( 'public = %d ', $public ); 582 } 583 584 if ( is_numeric( $this->query_vars['lang_id'] ) ) { 585 $lang_id = absint( $this->query_vars['lang_id'] ); 586 $this->sql_clauses['where']['lang_id'] = $wpdb->prepare( 'lang_id = %d ', $lang_id ); 587 } 588 589 // Parse site language IDs for an IN clause. 590 if ( ! empty( $this->query_vars['lang__in'] ) ) { 591 $this->sql_clauses['where']['lang__in'] = 'lang_id IN ( ' . implode( ',', wp_parse_id_list( $this->query_vars['lang__in'] ) ) . ' )'; 592 } 593 594 // Parse site language IDs for a NOT IN clause. 595 if ( ! empty( $this->query_vars['lang__not_in'] ) ) { 596 $this->sql_clauses['where']['lang__not_in'] = 'lang_id NOT IN ( ' . implode( ',', wp_parse_id_list( $this->query_vars['lang__not_in'] ) ) . ' )'; 597 } 598 599 // Falsey search strings are ignored. 600 if ( strlen( $this->query_vars['search'] ) ) { 601 $search_columns = array(); 602 603 if ( $this->query_vars['search_columns'] ) { 604 $search_columns = array_intersect( $this->query_vars['search_columns'], array( 'domain', 'path' ) ); 605 } 606 607 if ( ! $search_columns ) { 608 $search_columns = array( 'domain', 'path' ); 609 } 610 611 /** 612 * Filters the columns to search in a WP_Site_Query search. 613 * 614 * The default columns include 'domain' and 'path. 615 * 616 * @since 4.6.0 617 * 618 * @param string[] $search_columns Array of column names to be searched. 619 * @param string $search Text being searched. 620 * @param WP_Site_Query $query The current WP_Site_Query instance. 621 */ 622 $search_columns = apply_filters( 'site_search_columns', $search_columns, $this->query_vars['search'], $this ); 623 624 $this->sql_clauses['where']['search'] = $this->get_search_sql( $this->query_vars['search'], $search_columns ); 625 } 626 627 $date_query = $this->query_vars['date_query']; 628 if ( ! empty( $date_query ) && is_array( $date_query ) ) { 629 $this->date_query = new WP_Date_Query( $date_query, 'registered' ); 630 $this->sql_clauses['where']['date_query'] = preg_replace( '/^\s*AND\s*/', '', $this->date_query->get_sql() ); 631 } 632 633 $join = ''; 634 $groupby = ''; 635 636 if ( ! empty( $this->meta_query_clauses ) ) { 637 $join .= $this->meta_query_clauses['join']; 638 639 // Strip leading 'AND'. 640 $this->sql_clauses['where']['meta_query'] = preg_replace( '/^\s*AND\s*/', '', $this->meta_query_clauses['where'] ); 641 642 if ( ! $this->query_vars['count'] ) { 643 $groupby = "{$wpdb->blogs}.blog_id"; 644 } 645 } 646 647 $where = implode( ' AND ', $this->sql_clauses['where'] ); 648 649 $clauses = array( 'fields', 'join', 'where', 'orderby', 'limits', 'groupby' ); 650 651 /** 652 * Filters the site query clauses. 653 * 654 * @since 4.6.0 655 * 656 * @param string[] $clauses An associative array of site query clauses. 657 * @param WP_Site_Query $query Current instance of WP_Site_Query (passed by reference). 658 */ 659 $clauses = apply_filters_ref_array( 'sites_clauses', array( compact( $clauses ), &$this ) ); 660 661 $fields = isset( $clauses['fields'] ) ? $clauses['fields'] : ''; 662 $join = isset( $clauses['join'] ) ? $clauses['join'] : ''; 663 $where = isset( $clauses['where'] ) ? $clauses['where'] : ''; 664 $orderby = isset( $clauses['orderby'] ) ? $clauses['orderby'] : ''; 665 $limits = isset( $clauses['limits'] ) ? $clauses['limits'] : ''; 666 $groupby = isset( $clauses['groupby'] ) ? $clauses['groupby'] : ''; 667 668 if ( $where ) { 669 $where = 'WHERE ' . $where; 670 } 671 672 if ( $groupby ) { 673 $groupby = 'GROUP BY ' . $groupby; 674 } 675 676 if ( $orderby ) { 677 $orderby = "ORDER BY $orderby"; 678 } 679 680 $found_rows = ''; 681 if ( ! $this->query_vars['no_found_rows'] ) { 682 $found_rows = 'SQL_CALC_FOUND_ROWS'; 683 } 684 685 $this->sql_clauses['select'] = "SELECT $found_rows $fields"; 686 $this->sql_clauses['from'] = "FROM $wpdb->blogs $join"; 687 $this->sql_clauses['groupby'] = $groupby; 688 $this->sql_clauses['orderby'] = $orderby; 689 $this->sql_clauses['limits'] = $limits; 690 691 $this->request = " 692 {$this->sql_clauses['select']} 693 {$this->sql_clauses['from']} 694 {$where} 695 {$this->sql_clauses['groupby']} 696 {$this->sql_clauses['orderby']} 697 {$this->sql_clauses['limits']} 698 "; 699 700 if ( $this->query_vars['count'] ) { 701 return (int) $wpdb->get_var( $this->request ); 702 } 703 704 $site_ids = $wpdb->get_col( $this->request ); 705 706 return array_map( 'intval', $site_ids ); 707 } 708 709 /** 710 * Populates found_sites and max_num_pages properties for the current query 711 * if the limit clause was used. 712 * 713 * @since 4.6.0 714 * 715 * @global wpdb $wpdb WordPress database abstraction object. 716 */ 717 private function set_found_sites() { 718 global $wpdb; 719 720 if ( $this->query_vars['number'] && ! $this->query_vars['no_found_rows'] ) { 721 /** 722 * Filters the query used to retrieve found site count. 723 * 724 * @since 4.6.0 725 * 726 * @param string $found_sites_query SQL query. Default 'SELECT FOUND_ROWS()'. 727 * @param WP_Site_Query $site_query The `WP_Site_Query` instance. 728 */ 729 $found_sites_query = apply_filters( 'found_sites_query', 'SELECT FOUND_ROWS()', $this ); 730 731 $this->found_sites = (int) $wpdb->get_var( $found_sites_query ); 732 } 733 } 734 735 /** 736 * Used internally to generate an SQL string for searching across multiple columns. 737 * 738 * @since 4.6.0 739 * 740 * @global wpdb $wpdb WordPress database abstraction object. 741 * 742 * @param string $search Search string. 743 * @param string[] $columns Array of columns to search. 744 * @return string Search SQL. 745 */ 746 protected function get_search_sql( $search, $columns ) { 747 global $wpdb; 748 749 if ( false !== strpos( $search, '*' ) ) { 750 $like = '%' . implode( '%', array_map( array( $wpdb, 'esc_like' ), explode( '*', $search ) ) ) . '%'; 751 } else { 752 $like = '%' . $wpdb->esc_like( $search ) . '%'; 753 } 754 755 $searches = array(); 756 foreach ( $columns as $column ) { 757 $searches[] = $wpdb->prepare( "$column LIKE %s", $like ); 758 } 759 760 return '(' . implode( ' OR ', $searches ) . ')'; 761 } 762 763 /** 764 * Parses and sanitizes 'orderby' keys passed to the site query. 765 * 766 * @since 4.6.0 767 * 768 * @global wpdb $wpdb WordPress database abstraction object. 769 * 770 * @param string $orderby Alias for the field to order by. 771 * @return string|false Value to used in the ORDER clause. False otherwise. 772 */ 773 protected function parse_orderby( $orderby ) { 774 global $wpdb; 775 776 $parsed = false; 777 778 switch ( $orderby ) { 779 case 'site__in': 780 $site__in = implode( ',', array_map( 'absint', $this->query_vars['site__in'] ) ); 781 $parsed = "FIELD( {$wpdb->blogs}.blog_id, $site__in )"; 782 break; 783 case 'network__in': 784 $network__in = implode( ',', array_map( 'absint', $this->query_vars['network__in'] ) ); 785 $parsed = "FIELD( {$wpdb->blogs}.site_id, $network__in )"; 786 break; 787 case 'domain': 788 case 'last_updated': 789 case 'path': 790 case 'registered': 791 case 'deleted': 792 case 'spam': 793 case 'mature': 794 case 'archived': 795 case 'public': 796 $parsed = $orderby; 797 break; 798 case 'network_id': 799 $parsed = 'site_id'; 800 break; 801 case 'domain_length': 802 $parsed = 'CHAR_LENGTH(domain)'; 803 break; 804 case 'path_length': 805 $parsed = 'CHAR_LENGTH(path)'; 806 break; 807 case 'id': 808 $parsed = "{$wpdb->blogs}.blog_id"; 809 break; 810 } 811 812 if ( ! empty( $parsed ) || empty( $this->meta_query_clauses ) ) { 813 return $parsed; 814 } 815 816 $meta_clauses = $this->meta_query->get_clauses(); 817 if ( empty( $meta_clauses ) ) { 818 return $parsed; 819 } 820 821 $primary_meta_query = reset( $meta_clauses ); 822 if ( ! empty( $primary_meta_query['key'] ) && $primary_meta_query['key'] === $orderby ) { 823 $orderby = 'meta_value'; 824 } 825 826 switch ( $orderby ) { 827 case 'meta_value': 828 if ( ! empty( $primary_meta_query['type'] ) ) { 829 $parsed = "CAST({$primary_meta_query['alias']}.meta_value AS {$primary_meta_query['cast']})"; 830 } else { 831 $parsed = "{$primary_meta_query['alias']}.meta_value"; 832 } 833 break; 834 case 'meta_value_num': 835 $parsed = "{$primary_meta_query['alias']}.meta_value+0"; 836 break; 837 default: 838 if ( isset( $meta_clauses[ $orderby ] ) ) { 839 $meta_clause = $meta_clauses[ $orderby ]; 840 $parsed = "CAST({$meta_clause['alias']}.meta_value AS {$meta_clause['cast']})"; 841 } 842 } 843 844 return $parsed; 845 } 846 847 /** 848 * Parses an 'order' query variable and cast it to 'ASC' or 'DESC' as necessary. 849 * 850 * @since 4.6.0 851 * 852 * @param string $order The 'order' query variable. 853 * @return string The sanitized 'order' query variable. 854 */ 855 protected function parse_order( $order ) { 856 if ( ! is_string( $order ) || empty( $order ) ) { 857 return 'ASC'; 858 } 859 860 if ( 'ASC' === strtoupper( $order ) ) { 861 return 'ASC'; 862 } else { 863 return 'DESC'; 864 } 865 } 866 }
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