omy IN ('" . implode( "', '", array_map( 'esc_sql', $taxonomies ) ) . "')"; } $exclude = $args['exclude']; $exclude_tree = $args['exclude_tree']; $include = $args['include']; $inclusions = ''; if ( ! empty( $include ) ) { $exclude = ''; $exclude_tree = ''; $inclusions = implode( ',', wp_parse_id_list( $include ) ); } if ( ! empty( $inclusions ) ) { $this->sql_clauses['where']['inclusions'] = 't.term_id IN ( ' . $inclusions . ' )'; } $exclusions = array(); if ( ! empty( $exclude_tree ) ) { $exclude_tree = wp_parse_id_list( $exclude_tree ); $excluded_children = $exclude_tree; foreach ( $exclude_tree as $extrunk ) { $excluded_children = array_merge( $excluded_children, (array) get_terms( reset( $taxonomies ), array( 'child_of' => intval( $extrunk ), 'fields' => 'ids', 'hide_empty' => 0 ) ) ); } $exclusions = array_merge( $excluded_children, $exclusions ); } if ( ! empty( $exclude ) ) { $exclusions = array_merge( wp_parse_id_list( $exclude ), $exclusions ); } // 'childless' terms are those without an entry in the flattened term hierarchy. $childless = (bool) $args['childless']; if ( $childless ) { foreach ( $taxonomies as $_tax ) { $term_hierarchy = _get_term_hierarchy( $_tax ); $exclusions = array_merge( array_keys( $term_hierarchy ), $exclusions ); } } if ( ! empty( $exclusions ) ) { $exclusions = 't.term_id NOT IN (' . implode( ',', array_map( 'intval', $exclusions ) ) . ')'; } else { $exclusions = ''; } /** * Filters the terms to exclude from the terms query. * * @since 2.3.0 * * @param string $exclusions `NOT IN` clause of the terms query. * @param array $args An array of terms query arguments. * @param array $taxonomies An array of taxonomies. */ $exclusions = apply_filters( 'list_terms_exclusions', $exclusions, $args, $taxonomies ); if ( ! empty( $exclusions ) ) { // Must do string manipulation here for backward compatibility with filter. $this->sql_clauses['where']['exclusions'] = preg_replace( '/^\s*AND\s*/', '', $exclusions ); } if ( ( ! empty( $args['name'] ) ) || ( is_string( $args['name'] ) && 0 !== strlen( $args['name'] ) ) ) { $names = (array) $args['name']; foreach ( $names as &$_name ) { // `sanitize_term_field()` returns slashed data. $_name = stripslashes( sanitize_term_field( 'name', $_name, 0, reset( $taxonomies ), 'db' ) ); } $this->sql_clauses['where']['name'] = "t.name IN ('" . implode( "', '", array_map( 'esc_sql', $names ) ) . "')"; } if ( ( ! empty( $args['slug'] ) ) || ( is_string( $args['slug'] ) && 0 !== strlen( $args['slug'] ) ) ) { if ( is_array( $args['slug'] ) ) { $slug = array_map( 'sanitize_title', $args['slug'] ); $this->sql_clauses['where']['slug'] = "t.slug IN ('" . implode( "', '", $slug ) . "')"; } else { $slug = sanitize_title( $args['slug'] ); $this->sql_clauses['where']['slug'] = "t.slug = '$slug'"; } } if ( ! empty( $args['term_taxonomy_id'] ) ) { if ( is_array( $args['term_taxonomy_id'] ) ) { $tt_ids = implode( ',', array_map( 'intval', $args['term_taxonomy_id'] ) ); $this->sql_clauses['where']['term_taxonomy_id'] = "tt.term_taxonomy_id IN ({$tt_ids})"; } else { $this->sql_clauses['where']['term_taxonomy_id'] = $wpdb->prepare( "tt.term_taxonomy_id = %d", $args['term_taxonomy_id'] ); } } if ( ! empty( $args['name__like'] ) ) { $this->sql_clauses['where']['name__like'] = $wpdb->prepare( "t.name LIKE %s", '%' . $wpdb->esc_like( $args['name__like'] ) . '%' ); } if ( ! empty( $args['description__like'] ) ) { $this->sql_clauses['where']['description__like'] = $wpdb->prepare( "tt.description LIKE %s", '%' . $wpdb->esc_like( $args['description__like'] ) . '%' ); } if ( ! empty( $args['object_ids'] ) ) { $object_ids = $args['object_ids']; if ( ! is_array( $object_ids ) ) { $object_ids = array( $object_ids ); } $object_ids = implode( ', ', array_map( 'intval', $object_ids ) ); $this->sql_clauses['where']['object_ids'] = "tr.object_id IN ($object_ids)"; } /* * When querying for object relationships, the 'count > 0' check * added by 'hide_empty' is superfluous. */ if ( ! empty( $args['object_ids'] ) ) { $args['hide_empty'] = false; } if ( '' !== $parent ) { $parent = (int) $parent; $this->sql_clauses['where']['parent'] = "tt.parent = '$parent'"; } $hierarchical = $args['hierarchical']; if ( 'count' == $args['fields'] ) { $hierarchical = false; } if ( $args['hide_empty'] && !$hierarchical ) { $this->sql_clauses['where']['count'] = 'tt.count > 0'; } $number = $args['number']; $offset = $args['offset']; // Don't limit the query results when we have to descend the family tree. if ( $number && ! $hierarchical && ! $child_of && '' === $parent ) { if ( $offset ) { $limits = 'LIMIT ' . $offset . ',' . $number; } else { $limits = 'LIMIT ' . $number; } } else { $limits = ''; } if ( ! empty( $args['search'] ) ) { $this->sql_clauses['where']['search'] = $this->get_search_sql( $args['search'] ); } // Meta query support. $join = ''; $distinct = ''; // Reparse meta_query query_vars, in case they were modified in a 'pre_get_terms' callback. $this->meta_query->parse_query_vars( $this->query_vars ); $mq_sql = $this->meta_query->get_sql( 'term', 't', 'term_id' ); $meta_clauses = $this->meta_query->get_clauses(); if ( ! empty( $meta_clauses ) ) { $join .= $mq_sql['join']; $this->sql_clauses['where']['meta_query'] = preg_replace( '/^\s*AND\s*/', '', $mq_sql['where'] ); $distinct .= "DISTINCT"; } $selects = array(); switch ( $args['fields'] ) { case 'all': case 'all_with_object_id' : case 'tt_ids' : case 'slugs' : $selects = array( 't.*', 'tt.*' ); if ( 'all_with_object_id' === $args['fields'] && ! empty( $args['object_ids'] ) ) { $selects[] = 'tr.object_id'; } break; case 'ids': case 'id=>parent': $selects = array( 't.term_id', 'tt.parent', 'tt.count', 'tt.taxonomy' ); break; case 'names': $selects = array( 't.term_id', 'tt.parent', 'tt.count', 't.name', 'tt.taxonomy' ); break; case 'count': $orderby = ''; $order = ''; $selects = array( 'COUNT(*)' ); break; case 'id=>name': $selects = array( 't.term_id', 't.name', 'tt.count', 'tt.taxonomy' ); break; case 'id=>slug': $selects = array( 't.term_id', 't.slug', 'tt.count', 'tt.taxonomy' ); break; } $_fields = $args['fields']; /** * Filters the fields to select in the terms query. * * Field lists modified using this filter will only modify the term fields returned * by the function when the `$fields` parameter set to 'count' or 'all'. In all other * cases, the term fields in the results array will be determined by the `$fields` * parameter alone. * * Use of this filter can result in unpredictable behavior, and is not recommended. * * @since 2.8.0 * * @param array $selects An array of fields to select for the terms query. * @param array $args An array of term query arguments. * @param array $taxonomies An array of taxonomies. */ $fields = implode( ', ', apply_filters( 'get_terms_fields', $selects, $args, $taxonomies ) ); $join .= " INNER JOIN $wpdb->term_taxonomy AS tt ON t.term_id = tt.term_id"; if ( ! empty( $this->query_vars['object_ids'] ) ) { $join .= " INNER JOIN {$wpdb->term_relationships} AS tr ON tr.term_taxonomy_id = tt.term_taxonomy_id"; } $where = implode( ' AND ', $this->sql_clauses['where'] ); /** * Filters the terms query SQL clauses. * * @since 3.1.0 * * @param array $pieces Terms query SQL clauses. * @param array $taxonomies An array of taxonomies. * @param array $args An array of terms query arguments. */ $clauses = apply_filters( 'terms_clauses', compact( 'fields', 'join', 'where', 'distinct', 'orderby', 'order', 'limits' ), $taxonomies, $args ); $fields = isset( $clauses[ 'fields' ] ) ? $clauses[ 'fields' ] : ''; $join = isset( $clauses[ 'join' ] ) ? $clauses[ 'join' ] : ''; $where = isset( $clauses[ 'where' ] ) ? $clauses[ 'where' ] : ''; $distinct = isset( $clauses[ 'distinct' ] ) ? $clauses[ 'distinct' ] : ''; $orderby = isset( $clauses[ 'orderby' ] ) ? $clauses[ 'orderby' ] : ''; $order = isset( $clauses[ 'order' ] ) ? $clauses[ 'order' ] : ''; $limits = isset( $clauses[ 'limits' ] ) ? $clauses[ 'limits' ] : ''; if ( $where ) { $where = "WHERE $where"; } $this->sql_clauses['select'] = "SELECT $distinct $fields"; $this->sql_clauses['from'] = "FROM $wpdb->terms AS t $join"; $this->sql_clauses['orderby'] = $orderby ? "$orderby $order" : ''; $this->sql_clauses['limits'] = $limits; $this->request = "{$this->sql_clauses['select']} {$this->sql_clauses['from']} {$where} {$this->sql_clauses['orderby']} {$this->sql_clauses['limits']}"; // $args can be anything. Only use the args defined in defaults to compute the key. $key = md5( serialize( wp_array_slice_assoc( $args, array_keys( $this->query_var_defaults ) ) ) . serialize( $taxonomies ) . $this->request ); $last_changed = wp_cache_get_last_changed( 'terms' ); $cache_key = "get_terms:$key:$last_changed"; $cache = wp_cache_get( $cache_key, 'terms' ); if ( false !== $cache ) { if ( 'all' === $_fields || 'all_with_object_id' === $_fields ) { $cache = $this->populate_terms( $cache ); } $this->terms = $cache; return $this->terms; } if ( 'count' == $_fields ) { $count = $wpdb->get_var( $this->request ); wp_cache_set( $cache_key, $count, 'terms' ); return $count; } $terms = $wpdb->get_results( $this->request ); if ( 'all' == $_fields || 'all_with_object_id' === $_fields ) { update_term_cache( $terms ); } // Prime termmeta cache. if ( $args['update_term_meta_cache'] ) { $term_ids = wp_list_pluck( $terms, 'term_id' ); update_termmeta_cache( $term_ids ); } if ( empty( $terms ) ) { wp_cache_add( $cache_key, array(), 'terms', DAY_IN_SECONDS ); return array(); } if ( $child_of ) { foreach ( $taxonomies as $_tax ) { $children = _get_term_hierarchy( $_tax ); if ( ! empty( $children ) ) { $terms = _get_term_children( $child_of, $terms, $_tax ); } } } // Update term counts to include children. if ( $args['pad_counts'] && 'all' == $_fields ) { foreach ( $taxonomies as $_tax ) { _pad_term_counts( $terms, $_tax ); } } // Make sure we show empty categories that have children. if ( $hierarchical && $args['hide_empty'] && is_array( $terms ) ) { foreach ( $terms as $k => $term ) { if ( ! $term->count ) { $children = get_term_children( $term->term_id, $term->taxonomy ); if ( is_array( $children ) ) { foreach ( $children as $child_id ) { $child = get_term( $child_id, $term->taxonomy ); if ( $child->count ) { continue 2; } } } // It really is empty. unset( $terms[ $k ] ); } } } /* * When querying for terms connected to objects, we may get * duplicate results. The duplicates should be preserved if * `$fields` is 'all_with_object_id', but should otherwise be * removed. */ if ( ! empty( $args['object_ids'] ) && 'all_with_object_id' != $_fields ) { $_tt_ids = $_terms = array(); foreach ( $terms as $term ) { if ( isset( $_tt_ids[ $term->term_id ] ) ) { continue; } $_tt_ids[ $term->term_id ] = 1; $_terms[] = $term; } $terms = $_terms; } $_terms = array(); if ( 'id=>parent' == $_fields ) { foreach ( $terms as $term ) { $_terms[ $term->term_id ] = $term->parent; } } elseif ( 'ids' == $_fields ) { foreach ( $terms as $term ) { $_terms[] = (int) $term->term_id; } } elseif ( 'tt_ids' == $_fields ) { foreach ( $terms as $term ) { $_terms[] = (int) $term->term_taxonomy_id; } } elseif ( 'names' == $_fields ) { foreach ( $terms as $term ) { $_terms[] = $term->name; } } elseif ( 'slugs' == $_fields ) { foreach ( $terms as $term ) { $_terms[] = $term->slug; } } elseif ( 'id=>name' == $_fields ) { foreach ( $terms as $term ) { $_terms[ $term->term_id ] = $term->name; } } elseif ( 'id=>slug' == $_fields ) { foreach ( $terms as $term ) { $_terms[ $term->term_id ] = $term->slug; } } if ( ! empty( $_terms ) ) { $terms = $_terms; } // Hierarchical queries are not limited, so 'offset' and 'number' must be handled now. if ( $hierarchical && $number && is_array( $terms ) ) { if ( $offset >= count( $terms ) ) { $terms = array(); } else { $terms = array_slice( $terms, $offset, $number, true ); } } wp_cache_add( $cache_key, $terms, 'terms', DAY_IN_SECONDS ); if ( 'all' === $_fields || 'all_with_object_id' === $_fields ) { $terms = $this->populate_terms( $terms ); } $this->terms = $terms; return $this->terms; } /** * Parse and sanitize 'orderby' keys passed to the term query. * * @since 4.6.0 * * @global wpdb $wpdb WordPress database abstraction object. * * @param string $orderby_raw Alias for the field to order by. * @return string|false Value to used in the ORDER clause. False otherwise. */ protected function parse_orderby( $orderby_raw ) { $_orderby = strtolower( $orderby_raw ); $maybe_orderby_meta = false; if ( in_array( $_orderby, array( 'term_id', 'name', 'slug', 'term_group' ), true ) ) { $orderby = "t.$_orderby"; } elseif ( in_array( $_orderby, array( 'count', 'parent', 'taxonomy', 'term_taxonomy_id', 'description' ), true ) ) { $orderby = "tt.$_orderby"; } elseif ( 'term_order' === $_orderby ) { $orderby = 'tr.term_order'; } elseif ( 'include' == $_orderby && ! empty( $this->query_vars['include'] ) ) { $include = implode( ',', wp_parse_id_list( $this->query_vars['include'] ) ); $orderby = "FIELD( t.term_id, $include )"; } elseif ( 'slug__in' == $_orderby && ! empty( $this->query_vars['slug'] ) && is_array( $this->query_vars['slug'] ) ) { $slugs = implode( "', '", array_map( 'sanitize_title_for_query', $this->query_vars['slug'] ) ); $orderby = "FIELD( t.slug, '" . $slugs . "')"; } elseif ( 'none' == $_orderby ) { $orderby = ''; } elseif ( empty( $_orderby ) || 'id' == $_orderby || 'term_id' === $_orderby ) { $orderby = 't.term_id'; } else { $orderby = 't.name'; // This may be a value of orderby related to meta. $maybe_orderby_meta = true; } /** * Filters the ORDERBY clause of the terms query. * * @since 2.8.0 * * @param string $orderby `ORDERBY` clause of the terms query. * @param array $args An array of terms query arguments. * @param array $taxonomies An array of taxonomies. */ $orderby = apply_filters( 'get_terms_orderby', $orderby, $this->query_vars, $this->query_vars['taxonomy'] ); // Run after the 'get_terms_orderby' filter for backward compatibility. if ( $maybe_orderby_meta ) { $maybe_orderby_meta = $this->parse_orderby_meta( $_orderby ); if ( $maybe_orderby_meta ) { $orderby = $maybe_orderby_meta; } } return $orderby; } /** * Generate the ORDER BY clause for an 'orderby' param that is potentially related to a meta query. * * @since 4.6.0 * * @param string $orderby_raw Raw 'orderby' value passed to WP_Term_Query. * @return string ORDER BY clause. */ protected function parse_orderby_meta( $orderby_raw ) { $orderby = ''; // Tell the meta query to generate its SQL, so we have access to table aliases. $this->meta_query->get_sql( 'term', 't', 'term_id' ); $meta_clauses = $this->meta_query->get_clauses(); if ( ! $meta_clauses || ! $orderby_raw ) { return $orderby; } $allowed_keys = array(); $primary_meta_key = null; $primary_meta_query = reset( $meta_clauses ); if ( ! empty( $primary_meta_query['key'] ) ) { $primary_meta_key = $primary_meta_query['key']; $allowed_keys[] = $primary_meta_key; } $allowed_keys[] = 'meta_value'; $allowed_keys[] = 'meta_value_num'; $allowed_keys = array_merge( $allowed_keys, array_keys( $meta_clauses ) ); if ( ! in_array( $orderby_raw, $allowed_keys, true ) ) { return $orderby; } switch( $orderby_raw ) { case $primary_meta_key: case 'meta_value': if ( ! empty( $primary_meta_query['type'] ) ) { $orderby = "CAST({$primary_meta_query['alias']}.meta_value AS {$primary_meta_query['cast']})"; } else { $orderby = "{$primary_meta_query['alias']}.meta_value"; } break; case 'meta_value_num': $orderby = "{$primary_meta_query['alias']}.meta_value+0"; break; default: if ( array_key_exists( $orderby_raw, $meta_clauses ) ) { // $orderby corresponds to a meta_query clause. $meta_clause = $meta_clauses[ $orderby_raw ]; $orderby = "CAST({$meta_clause['alias']}.meta_value AS {$meta_clause['cast']})"; } break; } return $orderby; } /** * Parse an 'order' query variable and cast it to ASC or DESC as necessary. * * @since 4.6.0 * * @param string $order The 'order' query variable. * @return string The sanitized 'order' query variable. */ protected function parse_order( $order ) { if ( ! is_string( $order ) || empty( $order ) ) { return 'DESC'; } if ( 'ASC' === strtoupper( $order ) ) { return 'ASC'; } else { return 'DESC'; } } /** * Used internally to generate a SQL string related to the 'search' parameter. * * @since 4.6.0 * * @global wpdb $wpdb WordPress database abstraction object. * * @param string $string * @return string */ protected function get_search_sql( $string ) { global $wpdb; $like = '%' . $wpdb->esc_like( $string ) . '%'; return $wpdb->prepare( '((t.name LIKE %s) OR (t.slug LIKE %s))', $like, $like ); } /** * Creates an array of term objects from an array of term IDs. * * Also discards invalid term objects. * * @since 4.9.8 * * @param array $term_ids Term IDs. * @return array */ protected function populate_terms( $term_ids ) { $terms = array(); if ( ! is_array( $term_ids ) ) { return $terms; } foreach ( $term_ids as $key => $term_id ) { $term = get_term( $term_id ); if ( $term instanceof WP_Term ) { $terms[ $key ] = $term; } } return $terms; } }