| 1 |
<?php |
| 2 |
/** |
| 3 |
* Integrate with WP_Term_Query |
| 4 |
* |
| 5 |
* @since 3.1 |
| 6 |
* @package elasticpress |
| 7 |
*/ |
| 8 |
|
| 9 |
namespace ElasticPress\Indexable\Term; |
| 10 |
|
| 11 |
use ElasticPress\Indexables as Indexables; |
| 12 |
use \WP_Term_Query as WP_Term_Query; |
| 13 |
use ElasticPress\Utils as Utils; |
| 14 |
|
| 15 |
if ( ! defined( 'ABSPATH' ) ) { |
| 16 |
exit; // Exit if accessed directly. |
| 17 |
} |
| 18 |
|
| 19 |
/** |
| 20 |
* Query integration class |
| 21 |
*/ |
| 22 |
class QueryIntegration { |
| 23 |
|
| 24 |
/** |
| 25 |
* Checks to see if we should be integrating and if so, sets up the appropriate actions and filters. |
| 26 |
* |
| 27 |
* @param string $indexable_slug Indexable slug. Optional. |
| 28 |
* |
| 29 |
* @since 3.1 |
| 30 |
* @since 3.6.0 Added $indexable_slug |
| 31 |
*/ |
| 32 |
public function __construct( $indexable_slug = 'term' ) { |
| 33 |
// Ensure that we are currently allowing ElasticPress to override the normal WP_Query |
| 34 |
// Indexable->is_full_reindexing() is not available at this point yet, so using the IndexHelper version of it. |
| 35 |
if ( \ElasticPress\IndexHelper::factory()->is_full_reindexing( $indexable_slug, get_current_blog_id() ) ) { |
| 36 |
return; |
| 37 |
} |
| 38 |
|
| 39 |
// Add header |
| 40 |
add_action( 'pre_get_terms', array( $this, 'action_pre_get_terms' ), 5 ); |
| 41 |
|
| 42 |
// Filter term query |
| 43 |
add_filter( 'terms_pre_query', [ $this, 'maybe_filter_query' ], 10, 2 ); |
| 44 |
} |
| 45 |
|
| 46 |
/** |
| 47 |
* Add EP header |
| 48 |
* |
| 49 |
* @param WP_Term_Query $query Query object |
| 50 |
* @since 3.1 |
| 51 |
* @return void |
| 52 |
*/ |
| 53 |
public function action_pre_get_terms( WP_Term_Query $query ) { |
| 54 |
if ( ! Indexables::factory()->get( 'term' )->elasticpress_enabled( $query ) || apply_filters( 'ep_skip_term_query_integration', false, $query ) ) { |
| 55 |
return; |
| 56 |
} |
| 57 |
|
| 58 |
if ( ! headers_sent() ) { |
| 59 |
/** |
| 60 |
* Manually setting a header as $wp_query isn't yet initialized |
| 61 |
* when we call: add_filter('wp_headers', 'filter_wp_headers'); |
| 62 |
*/ |
| 63 |
header( 'X-ElasticPress-Term-Search: true' ); |
| 64 |
} |
| 65 |
} |
| 66 |
|
| 67 |
/** |
| 68 |
* If WP_Term_Query meets certain conditions, query results from ES |
| 69 |
* |
| 70 |
* @param array $results Term results. |
| 71 |
* @param WP_Term_Query $query Current query. |
| 72 |
* @since 3.1 |
| 73 |
* @return array |
| 74 |
*/ |
| 75 |
public function maybe_filter_query( $results, WP_Term_Query $query ) { |
| 76 |
$indexable = Indexables::factory()->get( 'term' ); |
| 77 |
|
| 78 |
if ( ! $indexable->elasticpress_enabled( $query ) || apply_filters( 'ep_skip_term_query_integration', false, $query ) ) { |
| 79 |
return $results; |
| 80 |
} |
| 81 |
|
| 82 |
if ( ! $this->is_searchable( $query ) ) { |
| 83 |
return $results; |
| 84 |
} |
| 85 |
|
| 86 |
$new_terms = apply_filters( 'ep_wp_query_cached_terms', null, $query ); |
| 87 |
|
| 88 |
if ( null === $new_terms ) { |
| 89 |
$formatted_args = $indexable->format_args( $query->query_vars ); |
| 90 |
|
| 91 |
$scope = 'current'; |
| 92 |
|
| 93 |
$site__in = []; |
| 94 |
$site__not_in = []; |
| 95 |
|
| 96 |
if ( ! empty( $query->query_vars['sites'] ) ) { |
| 97 |
_deprecated_argument( __FUNCTION__, '4.4.0', esc_html__( 'sites is deprecated. Use site__in instead.', 'elasticpress' ) ); |
| 98 |
} |
| 99 |
|
| 100 |
if ( ! empty( $query->query_vars['site__in'] ) || ! empty( $query->query_vars['sites'] ) ) { |
| 101 |
$site__in = ! empty( $query->query_vars['site__in'] ) ? (array) $query->query_vars['site__in'] : (array) $query->query_vars['sites']; |
| 102 |
|
| 103 |
if ( in_array( 'all', $site__in, true ) ) { |
| 104 |
$scope = 'all'; |
| 105 |
} elseif ( in_array( 'current', $site__in, true ) ) { |
| 106 |
$site__in = (array) get_current_blog_id(); |
| 107 |
} |
| 108 |
} |
| 109 |
|
| 110 |
if ( ! empty( $query->query_vars['site__not_in'] ) ) { |
| 111 |
$site__not_in = (array) $query->query_vars['site__not_in']; |
| 112 |
} |
| 113 |
|
| 114 |
/** |
| 115 |
* Filter search scope |
| 116 |
* |
| 117 |
* @since 3.1 |
| 118 |
* |
| 119 |
* @param mixed $scope The search scope. Accepts `all` (string), a single |
| 120 |
* site id (int or string), or an array of site ids (array). |
| 121 |
*/ |
| 122 |
$scope = apply_filters( 'ep_term_search_scope', $scope ); |
| 123 |
|
| 124 |
if ( ! defined( 'EP_IS_NETWORK' ) || ! EP_IS_NETWORK ) { |
| 125 |
$scope = 'current'; |
| 126 |
} |
| 127 |
|
| 128 |
$index = null; |
| 129 |
|
| 130 |
if ( 'all' === $scope ) { |
| 131 |
$index = $indexable->get_network_alias(); |
| 132 |
} elseif ( ! empty( $site__in ) ) { |
| 133 |
$index = []; |
| 134 |
|
| 135 |
foreach ( $site__in as $site_id ) { |
| 136 |
$index[] = $indexable->get_index_name( $site_id ); |
| 137 |
} |
| 138 |
|
| 139 |
$index = implode( ',', $index ); |
| 140 |
} elseif ( ! empty( $site__not_in ) ) { |
| 141 |
|
| 142 |
$sites = get_sites( |
| 143 |
array( |
| 144 |
'fields' => 'ids', |
| 145 |
'site__not_in' => $site__not_in, |
| 146 |
) |
| 147 |
); |
| 148 |
foreach ( $sites as $site_id ) { |
| 149 |
if ( ! Utils\is_site_indexable( $site_id ) ) { |
| 150 |
continue; |
| 151 |
} |
| 152 |
$index[] = Indexables::factory()->get( 'term' )->get_index_name( $site_id ); |
| 153 |
} |
| 154 |
$index = implode( ',', $index ); |
| 155 |
} |
| 156 |
|
| 157 |
$ep_query = $indexable->query_es( $formatted_args, $query->query_vars, $index ); |
| 158 |
|
| 159 |
if ( false === $ep_query ) { |
| 160 |
$query->elasticsearch_success = false; |
| 161 |
return $results; |
| 162 |
} |
| 163 |
|
| 164 |
/** |
| 165 |
* Elasticsearch 5 will return found_documents as a number, |
| 166 |
* ES 7+ will return it as an object with `value`. If any of that is found, |
| 167 |
* fallback to a simple count of returned documents. |
| 168 |
* |
| 169 |
* @since 3.6.3 |
| 170 |
*/ |
| 171 |
if ( is_integer( $ep_query['found_documents'] ) ) { |
| 172 |
$query->found_terms = $ep_query['found_documents']; |
| 173 |
} elseif ( is_array( $ep_query['found_documents'] ) && isset( $ep_query['found_documents']['value'] ) ) { |
| 174 |
$query->found_terms = $ep_query['found_documents']['value']; |
| 175 |
} else { |
| 176 |
$query->found_terms = count( $ep_query['documents'] ); |
| 177 |
} |
| 178 |
|
| 179 |
$query->elasticsearch_success = true; |
| 180 |
|
| 181 |
// Determine how we should format the results from ES based on the fields parameter. |
| 182 |
$fields = $query->query_vars['fields']; |
| 183 |
|
| 184 |
$new_terms = []; |
| 185 |
|
| 186 |
switch ( $fields ) { |
| 187 |
case 'all_with_object_id': |
| 188 |
$new_terms = $this->format_hits_as_terms( $ep_query['documents'], $new_terms, $query->query_vars ); |
| 189 |
break; |
| 190 |
|
| 191 |
case 'count': |
| 192 |
$new_terms = count( $ep_query['documents'] ); |
| 193 |
break; |
| 194 |
|
| 195 |
case 'ids': |
| 196 |
$new_terms = $this->format_hits_as_ids( $ep_query['documents'], $new_terms ); |
| 197 |
break; |
| 198 |
|
| 199 |
case 'id=>name': |
| 200 |
$new_terms = $this->format_hits_as_id_name( $ep_query['documents'], $new_terms ); |
| 201 |
break; |
| 202 |
|
| 203 |
case 'id=>parent': |
| 204 |
$new_terms = $this->format_hits_as_id_parent( $ep_query['documents'], $new_terms ); |
| 205 |
break; |
| 206 |
|
| 207 |
case 'id=>slug': |
| 208 |
$new_terms = $this->format_hits_as_id_slug( $ep_query['documents'], $new_terms ); |
| 209 |
break; |
| 210 |
|
| 211 |
case 'names': |
| 212 |
$new_terms = $this->format_hits_as_names( $ep_query['documents'], $new_terms ); |
| 213 |
break; |
| 214 |
|
| 215 |
case 'tt_ids': |
| 216 |
$new_terms = $this->format_hits_as_ids( $ep_query['documents'], $new_terms, 'term_taxonomy_id' ); |
| 217 |
break; |
| 218 |
|
| 219 |
default: |
| 220 |
$new_terms = $this->format_hits_as_terms( $ep_query['documents'], $new_terms, $query->query_vars ); |
| 221 |
break; |
| 222 |
} |
| 223 |
|
| 224 |
if ( ! empty( $query->query_vars['count'] ) ) { |
| 225 |
$new_terms = count( $ep_query['documents'] ); |
| 226 |
} |
| 227 |
} |
| 228 |
|
| 229 |
return $new_terms; |
| 230 |
} |
| 231 |
|
| 232 |
/** |
| 233 |
* Format the ES hits/results as term objects. |
| 234 |
* |
| 235 |
* @param array $terms The terms that should be formatted. |
| 236 |
* @param array $new_terms Array of terms from cache. |
| 237 |
* @param array $query_vars Query variables. |
| 238 |
* @since 3.1 |
| 239 |
* @return array |
| 240 |
*/ |
| 241 |
protected function format_hits_as_terms( $terms, $new_terms, $query_vars ) { |
| 242 |
foreach ( $terms as $term_array ) { |
| 243 |
$term = new \stdClass(); |
| 244 |
|
| 245 |
$term->ID = $term_array['term_id']; |
| 246 |
$term->site_id = get_current_blog_id(); |
| 247 |
|
| 248 |
if ( ! empty( $term_array['site_id'] ) ) { |
| 249 |
$term->site_id = $term_array['site_id']; |
| 250 |
} |
| 251 |
|
| 252 |
$term_return_args = apply_filters( |
| 253 |
'ep_search_term_return_args', |
| 254 |
array( |
| 255 |
'term_id', |
| 256 |
'name', |
| 257 |
'slug', |
| 258 |
'term_group', |
| 259 |
'term_taxonomy_id', |
| 260 |
'taxonomy', |
| 261 |
'description', |
| 262 |
'parent', |
| 263 |
'count', |
| 264 |
'meta', |
| 265 |
) |
| 266 |
); |
| 267 |
|
| 268 |
foreach ( $term_return_args as $key ) { |
| 269 |
if ( isset( $term_array[ $key ] ) ) { |
| 270 |
if ( 'count' === $key && ! empty( $query_vars['pad_counts'] ) ) { |
| 271 |
$term_array[ $key ] += $term_array['hierarchy']['children']['count']; |
| 272 |
} |
| 273 |
|
| 274 |
$term->$key = $term_array[ $key ]; |
| 275 |
} |
| 276 |
} |
| 277 |
|
| 278 |
$term->elasticsearch = true; // Super useful for debugging. |
| 279 |
|
| 280 |
$term = new \WP_Term( $term ); // Necessary for WordPress actions that expect WP_Term as the object type. |
| 281 |
|
| 282 |
if ( $term ) { |
| 283 |
$new_terms[] = $term; |
| 284 |
} |
| 285 |
} |
| 286 |
|
| 287 |
return $new_terms; |
| 288 |
} |
| 289 |
|
| 290 |
/** |
| 291 |
* Format the ES hits/results as an array of ids. |
| 292 |
* |
| 293 |
* @param array $terms The terms that should be formatted. |
| 294 |
* @param array $new_terms Array of terms from cache. |
| 295 |
* @param string $type Type of ID to return. Default 'term_id'. |
| 296 |
* @since 3.1 |
| 297 |
* @return array |
| 298 |
*/ |
| 299 |
protected function format_hits_as_ids( $terms, $new_terms, $type = 'term_id' ) { |
| 300 |
foreach ( $terms as $term_array ) { |
| 301 |
$new_terms[] = 'term_id' === $type ? $term_array['term_id'] : $term_array['term_taxonomy_id']; |
| 302 |
} |
| 303 |
|
| 304 |
return $new_terms; |
| 305 |
} |
| 306 |
|
| 307 |
/** |
| 308 |
* Format the ES hits/results as an array of term ID and term name. |
| 309 |
* |
| 310 |
* @param array $terms The terms that should be formatted. |
| 311 |
* @param array $new_terms Array of terms from cache. |
| 312 |
* @since 3.1 |
| 313 |
* @return array Returns an associative array with ids as keys, term names as values |
| 314 |
*/ |
| 315 |
protected function format_hits_as_id_name( $terms, $new_terms ) { |
| 316 |
foreach ( $terms as $term_array ) { |
| 317 |
$new_terms[ $term_array['term_id'] ] = $term_array['name']; |
| 318 |
} |
| 319 |
|
| 320 |
return $new_terms; |
| 321 |
} |
| 322 |
|
| 323 |
/** |
| 324 |
* Format the ES hits/results as an array of term ID and parent ID. |
| 325 |
* |
| 326 |
* @param array $terms The terms that should be formatted. |
| 327 |
* @param array $new_terms Array of terms from cache. |
| 328 |
* @since 3.1 |
| 329 |
* @return array Returns an associative array with ids as keys, parent term IDs as values |
| 330 |
*/ |
| 331 |
protected function format_hits_as_id_parent( $terms, $new_terms ) { |
| 332 |
foreach ( $terms as $term_array ) { |
| 333 |
$new_terms[ $term_array['term_id'] ] = $term_array['parent']; |
| 334 |
} |
| 335 |
|
| 336 |
return $new_terms; |
| 337 |
} |
| 338 |
|
| 339 |
/** |
| 340 |
* Format the ES hits/results as an array of term ID and term slug. |
| 341 |
* |
| 342 |
* @param array $terms The terms that should be formatted. |
| 343 |
* @param array $new_terms Array of terms from cache. |
| 344 |
* @since 3.1 |
| 345 |
* @return array Returns an associative array with ids as keys, term slugs as values |
| 346 |
*/ |
| 347 |
protected function format_hits_as_id_slug( $terms, $new_terms ) { |
| 348 |
foreach ( $terms as $term_array ) { |
| 349 |
$new_terms[ $term_array['term_id'] ] = $term_array['slug']; |
| 350 |
} |
| 351 |
|
| 352 |
return $new_terms; |
| 353 |
} |
| 354 |
|
| 355 |
/** |
| 356 |
* Format the ES hits/results as an array of term names. |
| 357 |
* |
| 358 |
* @param array $terms The terms that should be formatted. |
| 359 |
* @param array $new_terms Array of terms from cache. |
| 360 |
* @since 3.1 |
| 361 |
* @return array Returns an array of term names. |
| 362 |
*/ |
| 363 |
protected function format_hits_as_names( $terms, $new_terms ) { |
| 364 |
foreach ( $terms as $term_array ) { |
| 365 |
$new_terms[] = $term_array['name']; |
| 366 |
} |
| 367 |
|
| 368 |
return $new_terms; |
| 369 |
} |
| 370 |
|
| 371 |
/** |
| 372 |
* Determine whether ES should be used for the query if all taxonomies are indexable. |
| 373 |
* |
| 374 |
* @param \WP_Term_Query $query The WP_Term_Query object. |
| 375 |
* @return boolean |
| 376 |
*/ |
| 377 |
protected function is_searchable( $query ) { |
| 378 |
|
| 379 |
$taxonomies = $query->query_vars['taxonomy']; |
| 380 |
if ( ! $taxonomies ) { |
| 381 |
return true; |
| 382 |
} |
| 383 |
|
| 384 |
$indexable_taxonomies = Indexables::factory()->get( 'term' )->get_indexable_taxonomies(); |
| 385 |
return empty( array_diff( $taxonomies, $indexable_taxonomies ) ); |
| 386 |
} |
| 387 |
|
| 388 |
} |
| 389 |
|
