| 1 |
<?php |
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/** |
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* Integrate with WP_Comment_Query |
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* |
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* @since 3.6.0 |
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* @package elasticpress |
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*/ |
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|
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namespace ElasticPress\Indexable\Comment; |
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|
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use ElasticPress\Indexables as Indexables; |
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use \WP_Comment_Query as WP_Comment_Query; |
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use ElasticPress\Utils as Utils; |
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|
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if ( ! defined( 'ABSPATH' ) ) { |
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exit; // Exit if accessed directly. |
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} |
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|
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/** |
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* Query integration class |
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*/ |
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class QueryIntegration { |
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|
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/** |
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* Comment indexable |
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* |
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* @var Comment |
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*/ |
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public $indexable = ''; |
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|
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/** |
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* Index name |
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* |
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* @var string |
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*/ |
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public $index = ''; |
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|
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/** |
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* Sets up the appropriate actions and filters. |
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* |
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* @since 3.6.0 |
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*/ |
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public function __construct() { |
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// Check if we are currently indexing |
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if ( Utils\is_indexing() ) { |
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return; |
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} |
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|
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// Add header |
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add_action( 'pre_get_comments', array( $this, 'action_pre_get_comments' ), 5 ); |
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|
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// Filter comment query |
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add_filter( 'comments_pre_query', [ $this, 'maybe_filter_query' ], 10, 2 ); |
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} |
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|
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/** |
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* Add EP header |
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* |
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* @param WP_Comment_Query $query Query object |
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* @since 3.6.0 |
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* @return void |
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*/ |
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public function action_pre_get_comments( WP_Comment_Query $query ) { |
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/** |
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* Filter to skip WP_Comment_Query integration |
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* |
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* @hook ep_skip_comment_query_integration |
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* @since 3.6.0 |
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* @param {bool} $skip True to skip |
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* @param {WP_Comment_Query} $query WP_Comment_Query to evaluate |
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* @return {bool} New skip value |
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*/ |
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if ( ! Indexables::factory()->get( 'comment' )->elasticpress_enabled( $query ) || apply_filters( 'ep_skip_comment_query_integration', false, $query ) ) { |
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return; |
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} |
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|
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if ( ! headers_sent() ) { |
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/** |
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* Manually setting a header as $wp_query isn't yet initialized |
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* when we call: add_filter('wp_headers', 'filter_wp_headers'); |
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*/ |
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header( 'X-ElasticPress-Search: true' ); |
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} |
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} |
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|
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/** |
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* If WP_Comment_Query meets certain conditions, query results from ES |
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* |
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* @param array $results Query results. |
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* @param WP_Comment_Query $query Current query. |
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* @since 3.6.0 |
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* @return array |
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*/ |
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public function maybe_filter_query( $results, WP_Comment_Query $query ) { |
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$this->indexable = Indexables::factory()->get( 'comment' ); |
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|
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if ( ! $this->indexable->elasticpress_enabled( $query ) || apply_filters( 'ep_skip_comment_query_integration', false, $query ) ) { |
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return $results; |
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} |
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|
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/** |
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* Filter cached comments pre-post query |
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* |
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* @hook ep_wp_query_cached_comments |
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* @since 3.6.0 |
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* @param {mixed} $comments Comments or null |
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* @param {WP_Comment_Query} $query WP_Comment_Query object |
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* @return {array} New cached comments |
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*/ |
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$new_comments = apply_filters( 'ep_wp_query_cached_comments', null, $query ); |
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|
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if ( null !== $new_comments ) { |
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return $new_comments; |
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} |
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|
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$new_comments = []; |
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|
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$formatted_args = $this->indexable->format_args( $query->query_vars ); |
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|
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$scope = 'current'; |
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|
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$site__in = []; |
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$site__not_in = []; |
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|
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if ( ! empty( $query->query_vars['sites'] ) ) { |
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_deprecated_argument( __FUNCTION__, '4.4.0', esc_html__( 'sites is deprecated. Use site__in instead.', 'elasticpress' ) ); |
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} |
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|
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if ( ! empty( $query->query_vars['site__in'] ) || ! empty( $query->query_vars['sites'] ) ) { |
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$site__in = ! empty( $query->query_vars['site__in'] ) ? (array) $query->query_vars['site__in'] : (array) $query->query_vars['sites']; |
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|
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if ( in_array( 'all', $site__in, true ) ) { |
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$scope = 'all'; |
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} elseif ( in_array( 'current', $site__in, true ) ) { |
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$site__in = (array) get_current_blog_id(); |
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} |
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} |
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|
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if ( ! empty( $query->query_vars['site__not_in'] ) ) { |
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$site__not_in = (array) $query->query_vars['site__not_in']; |
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} |
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|
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/** |
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* Filter search scope |
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* |
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* @since 3.6.0 |
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* |
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* @param mixed $scope The search scope. Accepts `all` (string), a single |
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* site id (int or string), or an array of site ids (array). |
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*/ |
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$scope = apply_filters( 'ep_comment_search_scope', $scope ); |
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|
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if ( ! defined( 'EP_IS_NETWORK' ) || ! EP_IS_NETWORK ) { |
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$scope = 'current'; |
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} |
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|
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$this->index = null; |
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|
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if ( 'all' === $scope ) { |
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$this->index = $this->indexable->get_network_alias(); |
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} elseif ( ! empty( $site__in ) ) { |
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$this->index = []; |
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|
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foreach ( $site__in as $site_id ) { |
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$this->index[] = $this->indexable->get_index_name( $site_id ); |
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} |
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|
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$this->index = implode( ',', $this->index ); |
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} elseif ( ! empty( $site__not_in ) ) { |
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|
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$sites = get_sites( |
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array( |
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'fields' => 'ids', |
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'site__not_in' => $site__not_in, |
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) |
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); |
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foreach ( $sites as $site_id ) { |
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if ( ! Utils\is_site_indexable( $site_id ) ) { |
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continue; |
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} |
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$index[] = Indexables::factory()->get( 'comment' )->get_index_name( $site_id ); |
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} |
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|
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$this->index = implode( ',', $index ); |
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|
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} |
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|
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$ep_query = $this->indexable->query_es( $formatted_args, $query->query_vars, $this->index, $query ); |
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|
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if ( false === $ep_query ) { |
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$query->elasticsearch_success = false; |
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return $results; |
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} |
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|
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if ( ! empty( $query->query_vars['count'] ) ) { |
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return count( $ep_query['documents'] ); |
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} |
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|
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$query->found_comments = $ep_query['found_documents']['value']; |
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$query->max_num_pages = $query->query_vars['number'] <= 0 ? 1 : max( 1, ceil( $query->found_comments / absint( $query->query_vars['number'] ) ) ); |
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$query->elasticsearch_success = true; |
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|
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// Determine how we should format the results from ES based on the fields parameter. |
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$fields = $query->query_vars['fields']; |
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|
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switch ( $fields ) { |
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case 'count': |
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$new_comments = count( $ep_query['documents'] ); |
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break; |
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|
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case 'ids': |
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$new_comments = $this->format_hits_as_ids( $ep_query['documents'], $new_comments ); |
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break; |
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|
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default: |
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$new_comments = $this->format_hits_as_comments( $ep_query['documents'], $new_comments, $query->query_vars ); |
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break; |
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} |
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|
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return $new_comments; |
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} |
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|
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/** |
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* Format the ES hits/results as comments objects. |
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* |
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* @param array $comments The comments that should be formatted. |
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* @param array $new_comments Array of comments from cache. |
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* @param array $query_vars Query variables. |
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* @since 3.6.0 |
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* @return array |
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*/ |
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protected function format_hits_as_comments( $comments, $new_comments, $query_vars ) { |
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$hierarchical = isset( $query_vars['hierarchical'] ) ? $query_vars['hierarchical'] : false; |
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|
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foreach ( $comments as $comment_array ) { |
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$comment = new \WP_Comment( (object) $comment_array ); |
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if ( ! empty( $comment_array['site_id'] ) ) { |
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$comment->site_id = $comment_array['site_id']; |
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} else { |
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$comment->site_id = get_current_blog_id(); |
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} |
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|
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$comment->elasticsearch = true; // Super useful for debugging |
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|
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if ( $comment ) { |
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$new_comments[] = $comment; |
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} |
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} |
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|
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if ( $hierarchical ) { |
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$new_comments = $this->fill_descendants( $new_comments, $query_vars ); |
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} |
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|
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return $new_comments; |
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} |
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|
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/** |
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* Format the ES hits/results as an array of ids. |
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* |
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* @param array $comments The comments that should be formatted. |
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* @param array $new_comments Array of comments from cache. |
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* @since 3.6.0 |
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* @return array |
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*/ |
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protected function format_hits_as_ids( $comments, $new_comments ) { |
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foreach ( $comments as $comment_array ) { |
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$new_comments[] = $comment_array['comment_ID']; |
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} |
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|
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return $new_comments; |
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} |
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|
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/** |
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* Fetch descendants for located comments. |
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* |
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* @param array $comments Array of top-level comments whose descendants should be filled in. |
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* @param array $query_vars Current query vars. |
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* @since 3.6.0 |
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* @return array |
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*/ |
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protected function fill_descendants( $comments, $query_vars ) { |
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$levels = [ |
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0 => $comments, |
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]; |
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|
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// Fetch an entire level of the descendant tree at a time. |
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$level = 0; |
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$exclude_keys = [ 'parent', 'parent__in', 'parent__not_in' ]; |
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|
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do { |
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$child_comments = []; |
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$_parent_ids = wp_list_pluck( $levels[ $level ], 'comment_ID' ); |
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|
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if ( $_parent_ids ) { |
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$parent_query_args = $query_vars; |
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|
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foreach ( $exclude_keys as $exclude_key ) { |
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$parent_query_args[ $exclude_key ] = ''; |
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} |
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|
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$parent_query_args['parent__in'] = $_parent_ids; |
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$parent_query_args['hierarchical'] = false; |
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$parent_query_args['offset'] = 0; |
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$parent_query_args['number'] = 0; |
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|
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$formatted_args = $this->indexable->format_args( $parent_query_args ); |
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$ep_query = $this->indexable->query_es( $formatted_args, $query_vars, $this->index ); |
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|
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if ( false === $ep_query ) { |
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$level_comments = []; |
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} else { |
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$level_comments = $this->format_hits_as_comments( $ep_query['documents'], [], [] ); |
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} |
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|
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foreach ( $level_comments as $level_comment ) { |
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$child_comments[] = $level_comment; |
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} |
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} |
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|
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$level ++; |
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$levels[ $level ] = $child_comments; |
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} while ( $child_comments ); |
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|
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// Pull out just the descendant comments |
| 325 |
$descendants = []; |
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for ( $i = 1, $c = count( $levels ); $i < $c; $i++ ) { |
| 327 |
$descendants = array_merge( $descendants, $levels[ $i ] ); |
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} |
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|
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// Assemble a flat array of all comments + descendants. |
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$all_comments = $comments; |
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foreach ( $descendants as $descendant ) { |
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$all_comments[] = $descendant; |
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} |
| 335 |
|
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// If a threaded representation was requested, build the tree. |
| 337 |
if ( 'threaded' === $query_vars['hierarchical'] ) { |
| 338 |
$threaded_comments = []; |
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$ref = []; |
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|
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foreach ( $all_comments as $c ) { |
| 342 |
// If the comment isn't in the reference array, it goes in the top level of the thread. |
| 343 |
if ( ! isset( $ref[ $c->comment_parent ] ) ) { |
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$threaded_comments[ $c->comment_ID ] = $c; |
| 345 |
$ref[ $c->comment_ID ] = $threaded_comments[ $c->comment_ID ]; |
| 346 |
|
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// Otherwise, set it as a child of its parent. |
| 348 |
} else { |
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$ref[ $c->comment_parent ]->add_child( $c ); |
| 350 |
$ref[ $c->comment_ID ] = $c; |
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} |
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} |
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|
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$comments = $threaded_comments; |
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} else { |
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$comments = $all_comments; |
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} |
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|
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return $comments; |
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} |
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|
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} |
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|
