feat: refactor general tainacan search
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vnmedeiros
parent
263de085ca
commit
9ad8ccfa13
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@ -47,8 +47,6 @@ class Search_Engine {
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//add_filter( 'posts_where', array( &$this, 'search_attachments' ) );
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add_filter( 'posts_join', array( &$this, 'search_authors_join' ) );
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add_filter( 'posts_search', array( &$this, 'search_where' ), 10, 2 );
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add_filter( 'posts_request', array( &$this, 'distinct' ) );
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@ -58,7 +56,6 @@ class Search_Engine {
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// creates the list of search keywords from the 's' parameters.
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function get_search_terms() {
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global $wpdb;
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$s = isset( $this->query_instance->query_vars['s'] ) ? $this->query_instance->query_vars['s'] : '';
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$sentence = isset( $this->query_instance->query_vars['sentence'] ) ? $this->query_instance->query_vars['sentence'] : false;
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$search_terms = array();
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@ -136,27 +133,8 @@ class Search_Engine {
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if ( !$this->is_tainacan_search && !$this->ajax_request)
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return $where;
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global $wpdb;
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$search_query_fields = array();
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$search_query_fields = array_merge($search_query_fields, $this->search_default());
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$search_query_fields = array_merge($search_query_fields, $this->build_search_categories());
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$search_query_fields = array_merge($search_query_fields, $this->build_search_metadata());
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$search_query_fields = array_merge($search_query_fields, $this->build_search_relationships());
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$search_query_fields = array_merge($search_query_fields, $this->search_authors());
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$searchQuery = '(';
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$seperator = '';
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$not_exact = empty($this->query_instance->query_vars['exact']);
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$terms = $this->get_search_terms();
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$fields = implode(", ", $search_query_fields);
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foreach ( $terms as $term ) {
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$esc_term = $wpdb->prepare("%s", $not_exact ? "%".$term."%" : $term);
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$searchQuery .= "{$seperator}CONCAT_WS(' || ', $fields ) LIKE $esc_term";
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$seperator = ' OR ';
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}
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$searchQuery .= ')';
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$searchQuery = $this->build_search_terms_query();
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$searchQuery = "($searchQuery) OR (tax_terms.contains = TRUE) OR (metas.contains = TRUE) ";
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if ( $searchQuery != '' && $searchQuery != '()' ) {
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// lets use _OUR_ query instead of WP's, as we have posts already included in our query as well(assuming it's not empty which we check for)
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@ -165,18 +143,8 @@ class Search_Engine {
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return $where;
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}
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// search for terms in default locations like title and content
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// replacing the old search terms seems to be the best way to
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// avoid issue with multiple terms
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function search_default() {
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global $wpdb;
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return ["$wpdb->posts.post_title", "$wpdb->posts.post_content"];
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}
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//Duplicate fix provided by Tiago.Pocinho
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function distinct( $query ) {
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global $wpdb;
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if ( !empty( $this->query_instance->query_vars['s'] ) ) {
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if ( strstr( $query, 'DISTINCT' ) ) {}
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else {
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@ -204,49 +172,6 @@ class Search_Engine {
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return $where;
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}
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// Build the author search
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function search_authors() {
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return ["u.display_name"];
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}
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function build_search_relationships(){
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if ( empty( $this->relationships ) ) {
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return [];
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}
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return ['p2.post_title'];
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}
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// create the search meta data query
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function build_search_metadata() {
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return ["m.meta_value"];
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}
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// create the search categories query
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function build_search_categories() {
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if (empty($this->taxonomies)) {
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return [];
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}
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return ["tter.name", "ttax.description"];
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}
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//join for searching authors
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function search_authors_join( $join ) {
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if ($this->is_inner_query) {
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return $join;
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}
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global $wpdb;
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if ( $this->is_tainacan_search ) {
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$join .= " LEFT JOIN $wpdb->users AS u ON ($wpdb->posts.post_author = u.ID) ";
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}
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return $join;
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}
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//join for searching metadata
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function search_metadata_join( $join ) {
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@ -255,9 +180,19 @@ class Search_Engine {
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}
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global $wpdb;
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if ( $this->is_tainacan_search ) {
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$join .= " LEFT JOIN $wpdb->postmeta AS m ON ($wpdb->posts.ID = m.post_id) ";
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$searchMetaQuery = $this->build_search_terms_query('meta_terms');
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$join .= <<<EOF
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LEFT JOIN
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(
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SELECT
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m.post_id, true as contains
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FROM
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$wpdb->postmeta m
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WHERE
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( $searchMetaQuery )
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) AS metas ON $wpdb->posts.ID = metas.post_id
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EOF;
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}
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return $join;
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}
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@ -279,7 +214,7 @@ class Search_Engine {
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return $join;
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}
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//join for searching tags
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//join for searching taxonomies terms
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function terms_join( $join ) {
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if ($this->is_inner_query) {
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@ -287,18 +222,57 @@ class Search_Engine {
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}
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global $wpdb;
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$searchTaxQuery = $this->build_search_terms_query('tax_terms');
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if ( $this->is_tainacan_search && !empty( $this->taxonomies ) ) {
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foreach ( $this->taxonomies as $taxonomy ) {
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$on[] = "ttax.taxonomy = '" . addslashes( $taxonomy )."'";
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}
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// build our final string
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$on = ' ( ' . implode( ' OR ', $on ) . ' ) ';
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$join .= " LEFT JOIN $wpdb->term_relationships AS trel ON ($wpdb->posts.ID = trel.object_id) LEFT JOIN $wpdb->term_taxonomy AS ttax ON ( " . $on . " AND trel.term_taxonomy_id = ttax.term_taxonomy_id) LEFT JOIN $wpdb->terms AS tter ON (ttax.term_id = tter.term_id) ";
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$tax_where = ' ttax.taxonomy IN ( \'' . implode( '\',\'', $this->taxonomies ) . '\' ) ';
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$join .= <<<EOF
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LEFT JOIN (
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SELECT DISTINCT
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trel.object_id as post_id,
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true as contains
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FROM
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$wpdb->term_relationships AS trel
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INNER JOIN $wpdb->term_taxonomy AS ttax ON trel.term_taxonomy_id = ttax.term_taxonomy_id
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INNER JOIN $wpdb->terms AS tter ON ttax.term_id = tter.term_id
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WHERE
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$tax_where AND ( $searchTaxQuery )
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) tax_terms ON $wpdb->posts.ID = tax_terms.post_id
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EOF;
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}
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return $join;
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}
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private function build_search_terms_query ($type = 'default') {
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global $wpdb;
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$searchQuery = '(';
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$seperator = '';
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$not_exact = empty($this->query_instance->query_vars['exact']);
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$terms = $this->get_search_terms();
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foreach ( $terms as $term ) {
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$esc_term = $wpdb->prepare("%s", $not_exact ? "%".$term."%" : $term);
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switch ($type) {
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case 'tax_terms':
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$searchQuery .= "{$seperator}(tter.name LIKE {$esc_term})";
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break;
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case 'meta_terms':
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$searchQuery .= "{$seperator}(m.meta_value LIKE {$esc_term})";
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break;
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case 'relationship_terms':
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break;
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default:
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if ( !empty( $this->relationships ) ) {
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$searchQuery .= "{$seperator}($wpdb->posts.post_title LIKE {$esc_term} OR $wpdb->posts.post_content LIKE {$esc_term} OR p2->posts.post_title LIKE {$esc_term} OR p2.post_content LIKE {$esc_term})";
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} else {
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$searchQuery .= "{$seperator}($wpdb->posts.post_title LIKE {$esc_term} OR $wpdb->posts.post_content LIKE {$esc_term})";
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}
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break;
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}
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$seperator = ' AND ';
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}
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$searchQuery .= ')';
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return $searchQuery;
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}
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} // END
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