Automattic\WooCommerce\Internal\ProductAttributesLookup
Filterer{} │ WC 1.0
Helper class for filtering products using the product attributes lookup table.
Хуки из класса
Использование
$Filterer = new Filterer(); // use class methods
Методы
- public filter_by_attribute_post_clauses( array $args, \WP_Query $wp_query, array $attributes_to_filter_by )
- public filtering_via_lookup_table_is_active()
- public get_filtered_term_product_counts( $term_ids, $taxonomy, $query_type )
- private get_product_counts_query_not_using_lookup_table( $tax_query, $meta_query, $term_ids )
- private get_product_counts_query_using_lookup_table( $tax_query, $meta_query, $taxonomy, $term_ids )
- private get_term_ids_sql( $term_ids )
- public init( LookupDataStore $data_store )
Код Filterer{} Filterer{} WC 8.7.0
class Filterer {
/**
* The product attributes lookup data store to use.
*
* @var LookupDataStore
*/
private $data_store;
/**
* The name of the product attributes lookup table.
*
* @var string
*/
private $lookup_table_name;
/**
* Class initialization, invoked by the DI container.
*
* @internal
* @param LookupDataStore $data_store The data store to use.
*/
final public function init( LookupDataStore $data_store ) {
$this->data_store = $data_store;
$this->lookup_table_name = $data_store->get_lookup_table_name();
}
/**
* Checks if the product attribute filtering via lookup table feature is enabled.
*
* @return bool
*/
public function filtering_via_lookup_table_is_active() {
return 'yes' === get_option( 'woocommerce_attribute_lookup_enabled' );
}
/**
* Adds post clauses for filtering via lookup table.
* This method should be invoked within a 'posts_clauses' filter.
*
* @param array $args Product query clauses as supplied to the 'posts_clauses' filter.
* @param \WP_Query $wp_query Current product query as supplied to the 'posts_clauses' filter.
* @param array $attributes_to_filter_by Attribute filtering data as generated by WC_Query::get_layered_nav_chosen_attributes.
* @return array The updated product query clauses.
*/
public function filter_by_attribute_post_clauses( array $args, \WP_Query $wp_query, array $attributes_to_filter_by ) {
global $wpdb;
if ( ! $wp_query->is_main_query() || ! $this->filtering_via_lookup_table_is_active() ) {
return $args;
}
// The extra derived table ("SELECT product_or_parent_id FROM") is needed for performance
// (causes the filtering subquery to be executed only once).
$clause_root = " {$wpdb->posts}.ID IN ( SELECT product_or_parent_id FROM (";
if ( 'yes' === get_option( 'woocommerce_hide_out_of_stock_items' ) ) {
$in_stock_clause = ' AND in_stock = 1';
} else {
$in_stock_clause = '';
}
$attribute_ids_for_and_filtering = array();
$clauses = array();
foreach ( $attributes_to_filter_by as $taxonomy => $data ) {
$all_terms = get_terms( $taxonomy, array( 'hide_empty' => false ) );
$term_ids_by_slug = wp_list_pluck( $all_terms, 'term_id', 'slug' );
$term_ids_to_filter_by = array_values( array_intersect_key( $term_ids_by_slug, array_flip( $data['terms'] ) ) );
$term_ids_to_filter_by = array_map( 'absint', $term_ids_to_filter_by );
$term_ids_to_filter_by_list = '(' . join( ',', $term_ids_to_filter_by ) . ')';
$is_and_query = 'and' === $data['query_type'];
$count = count( $term_ids_to_filter_by );
if ( 0 !== $count ) {
if ( $is_and_query && $count > 1 ) {
$attribute_ids_for_and_filtering = array_merge( $attribute_ids_for_and_filtering, $term_ids_to_filter_by );
} else {
$clauses[] = "
{$clause_root}
SELECT product_or_parent_id
FROM {$this->lookup_table_name} lt
WHERE term_id in {$term_ids_to_filter_by_list}
{$in_stock_clause}
)";
}
}
}
if ( ! empty( $attribute_ids_for_and_filtering ) ) {
$count = count( $attribute_ids_for_and_filtering );
$term_ids_to_filter_by_list = '(' . join( ',', $attribute_ids_for_and_filtering ) . ')';
$clauses[] = "
{$clause_root}
SELECT product_or_parent_id
FROM {$this->lookup_table_name} lt
WHERE is_variation_attribute=0
{$in_stock_clause}
AND term_id in {$term_ids_to_filter_by_list}
GROUP BY product_id
HAVING COUNT(product_id)={$count}
UNION
SELECT product_or_parent_id
FROM {$this->lookup_table_name} lt
WHERE is_variation_attribute=1
{$in_stock_clause}
AND term_id in {$term_ids_to_filter_by_list}
)";
}
if ( ! empty( $clauses ) ) {
// "temp" is needed because the extra derived tables require an alias.
$args['where'] .= ' AND (' . join( ' temp ) AND ', $clauses ) . ' temp ))';
} elseif ( ! empty( $attributes_to_filter_by ) ) {
$args['where'] .= ' AND 1=0';
}
return $args;
}
/**
* Count products within certain terms, taking the main WP query into consideration,
* for the WC_Widget_Layered_Nav widget.
*
* This query allows counts to be generated based on the viewed products, not all products.
*
* @param array $term_ids Term IDs.
* @param string $taxonomy Taxonomy.
* @param string $query_type Query Type.
* @return array
*/
public function get_filtered_term_product_counts( $term_ids, $taxonomy, $query_type ) {
global $wpdb;
$use_lookup_table = $this->filtering_via_lookup_table_is_active();
$tax_query = \WC_Query::get_main_tax_query();
$meta_query = \WC_Query::get_main_meta_query();
if ( 'or' === $query_type ) {
foreach ( $tax_query as $key => $query ) {
if ( is_array( $query ) && $taxonomy === $query['taxonomy'] ) {
unset( $tax_query[ $key ] );
}
}
}
$meta_query = new \WP_Meta_Query( $meta_query );
$tax_query = new \WP_Tax_Query( $tax_query );
if ( $use_lookup_table ) {
$query = $this->get_product_counts_query_using_lookup_table( $tax_query, $meta_query, $taxonomy, $term_ids );
} else {
$query = $this->get_product_counts_query_not_using_lookup_table( $tax_query, $meta_query, $term_ids );
}
$query = apply_filters( 'woocommerce_get_filtered_term_product_counts_query', $query );
$query_sql = implode( ' ', $query );
// We have a query - let's see if cached results of this query already exist.
$query_hash = md5( $query_sql );
// Maybe store a transient of the count values.
$cache = apply_filters( 'woocommerce_layered_nav_count_maybe_cache', true );
if ( true === $cache ) {
$cached_counts = (array) get_transient( 'wc_layered_nav_counts_' . sanitize_title( $taxonomy ) );
} else {
$cached_counts = array();
}
if ( ! isset( $cached_counts[ $query_hash ] ) ) {
// phpcs:ignore WordPress.DB.PreparedSQL.NotPrepared
$results = $wpdb->get_results( $query_sql, ARRAY_A );
$counts = array_map( 'absint', wp_list_pluck( $results, 'term_count', 'term_count_id' ) );
$cached_counts[ $query_hash ] = $counts;
if ( true === $cache ) {
set_transient( 'wc_layered_nav_counts_' . sanitize_title( $taxonomy ), $cached_counts, DAY_IN_SECONDS );
}
}
return array_map( 'absint', (array) $cached_counts[ $query_hash ] );
}
/**
* Get the query for counting products by terms using the product attributes lookup table.
*
* @param \WP_Tax_Query $tax_query The current main tax query.
* @param \WP_Meta_Query $meta_query The current main meta query.
* @param string $taxonomy The attribute name to get the term counts for.
* @param string $term_ids The term ids to include in the search.
* @return array An array of SQL query parts.
*/
private function get_product_counts_query_using_lookup_table( $tax_query, $meta_query, $taxonomy, $term_ids ) {
global $wpdb;
$meta_query_sql = $meta_query->get_sql( 'post', $this->lookup_table_name, 'product_or_parent_id' );
$tax_query_sql = $tax_query->get_sql( $this->lookup_table_name, 'product_or_parent_id' );
$hide_out_of_stock = 'yes' === get_option( 'woocommerce_hide_out_of_stock_items' );
$in_stock_clause = $hide_out_of_stock ? ' AND in_stock = 1' : '';
$query = array();
$query['select'] = 'SELECT COUNT(DISTINCT product_or_parent_id) as term_count, term_id as term_count_id';
$query['from'] = "FROM {$this->lookup_table_name}";
$query['join'] = "
{$tax_query_sql['join']} {$meta_query_sql['join']}
INNER JOIN {$wpdb->posts} ON {$wpdb->posts}.ID = {$this->lookup_table_name}.product_or_parent_id";
$encoded_taxonomy = sanitize_title( $taxonomy );
$term_ids_sql = $this->get_term_ids_sql( $term_ids );
$query['where'] = "
WHERE {$wpdb->posts}.post_type IN ( 'product' )
AND {$wpdb->posts}.post_status = 'publish'
{$tax_query_sql['where']} {$meta_query_sql['where']}
AND {$this->lookup_table_name}.taxonomy='{$encoded_taxonomy}'
AND {$this->lookup_table_name}.term_id IN $term_ids_sql
{$in_stock_clause}";
if ( ! empty( $term_ids ) ) {
$attributes_to_filter_by = \WC_Query::get_layered_nav_chosen_attributes();
if ( ! empty( $attributes_to_filter_by ) ) {
$and_term_ids = array();
foreach ( $attributes_to_filter_by as $taxonomy => $data ) {
if ( 'and' !== $data['query_type'] ) {
continue;
}
$all_terms = get_terms( $taxonomy, array( 'hide_empty' => false ) );
$term_ids_by_slug = wp_list_pluck( $all_terms, 'term_id', 'slug' );
$term_ids_to_filter_by = array_values( array_intersect_key( $term_ids_by_slug, array_flip( $data['terms'] ) ) );
$and_term_ids = array_merge( $and_term_ids, $term_ids_to_filter_by );
}
if ( ! empty( $and_term_ids ) ) {
$terms_count = count( $and_term_ids );
$term_ids_list = '(' . join( ',', $and_term_ids ) . ')';
// The extra derived table ("SELECT product_or_parent_id FROM") is needed for performance
// (causes the filtering subquery to be executed only once).
$query['where'] .= "
AND product_or_parent_id IN ( SELECT product_or_parent_id FROM (
SELECT product_or_parent_id
FROM {$this->lookup_table_name} lt
WHERE is_variation_attribute=0
{$in_stock_clause}
AND term_id in {$term_ids_list}
GROUP BY product_id
HAVING COUNT(product_id)={$terms_count}
UNION
SELECT product_or_parent_id
FROM {$this->lookup_table_name} lt
WHERE is_variation_attribute=1
{$in_stock_clause}
AND term_id in {$term_ids_list}
) temp )";
}
} else {
$query['where'] .= $in_stock_clause;
}
} elseif ( $hide_out_of_stock ) {
$query['where'] .= " AND {$this->lookup_table_name}.in_stock=1";
}
$search_query_sql = \WC_Query::get_main_search_query_sql();
if ( $search_query_sql ) {
$query['where'] .= ' AND ' . $search_query_sql;
}
$query['group_by'] = 'GROUP BY terms.term_id';
$query['group_by'] = "GROUP BY {$this->lookup_table_name}.term_id";
return $query;
}
/**
* Get the query for counting products by terms NOT using the product attributes lookup table.
*
* @param \WP_Tax_Query $tax_query The current main tax query.
* @param \WP_Meta_Query $meta_query The current main meta query.
* @param string $term_ids The term ids to include in the search.
* @return array An array of SQL query parts.
*/
private function get_product_counts_query_not_using_lookup_table( $tax_query, $meta_query, $term_ids ) {
global $wpdb;
$meta_query_sql = $meta_query->get_sql( 'post', $wpdb->posts, 'ID' );
$tax_query_sql = $tax_query->get_sql( $wpdb->posts, 'ID' );
// Generate query.
$query = array();
$query['select'] = "SELECT COUNT( DISTINCT {$wpdb->posts}.ID ) AS term_count, terms.term_id AS term_count_id";
$query['from'] = "FROM {$wpdb->posts}";
$query['join'] = "
INNER JOIN {$wpdb->term_relationships} AS term_relationships ON {$wpdb->posts}.ID = term_relationships.object_id
INNER JOIN {$wpdb->term_taxonomy} AS term_taxonomy USING( term_taxonomy_id )
INNER JOIN {$wpdb->terms} AS terms USING( term_id )
" . $tax_query_sql['join'] . $meta_query_sql['join'];
$term_ids_sql = $this->get_term_ids_sql( $term_ids );
$query['where'] = "
WHERE {$wpdb->posts}.post_type IN ( 'product' )
AND {$wpdb->posts}.post_status = 'publish'
{$tax_query_sql['where']} {$meta_query_sql['where']}
AND terms.term_id IN $term_ids_sql";
$search_query_sql = \WC_Query::get_main_search_query_sql();
if ( $search_query_sql ) {
$query['where'] .= ' AND ' . $search_query_sql;
}
$query['group_by'] = 'GROUP BY terms.term_id';
return $query;
}
/**
* Formats a list of term ids as "(id,id,id)".
*
* @param array $term_ids The list of terms to format.
* @return string The formatted list.
*/
private function get_term_ids_sql( $term_ids ) {
return '(' . implode( ',', array_map( 'absint', $term_ids ) ) . ')';
}
}