ProductFilterAttribute.php
<?php
declare( strict_types = 1 );
namespace Automattic\WooCommerce\Blocks\BlockTypes;
use Automattic\WooCommerce\Blocks\BlockTypes\ProductCollection\Utils as ProductCollectionUtils;
use Automattic\WooCommerce\Internal\ProductFilters\FilterDataProvider;
use Automattic\WooCommerce\Internal\ProductFilters\QueryClauses;
/**
* Product Filter: Attribute Block.
*/
final class ProductFilterAttribute extends AbstractBlock {
/**
* Block name.
*
* @var string
*/
protected $block_name = 'product-filter-attribute';
/**
* Initialize this block type.
*
* - Hook into WP lifecycle.
* - Register the block with WordPress.
*/
protected function initialize() {
parent::initialize();
add_filter( 'woocommerce_blocks_product_filters_param_keys', array( $this, 'get_filter_query_param_keys' ), 10, 2 );
add_filter( 'woocommerce_blocks_product_filters_selected_items', array( $this, 'prepare_selected_filters' ), 10, 2 );
add_action( 'deleted_transient', array( $this, 'delete_default_attribute_id_transient' ) );
add_action( 'wp_loaded', array( $this, 'register_block_patterns' ) );
}
/**
* Extra data passed through from server to client for block.
*
* @param array $attributes Any attributes that currently are available from the block.
* Note, this will be empty in the editor context when the block is
* not in the post content on editor load.
*/
protected function enqueue_data( array $attributes = array() ) {
parent::enqueue_data( $attributes );
if ( is_admin() ) {
$this->asset_data_registry->add( 'defaultProductFilterAttribute', $this->get_default_product_attribute() );
}
}
/**
* Delete the default attribute id transient when the attribute taxonomies are deleted.
*
* @param string $transient The transient name.
*/
public function delete_default_attribute_id_transient( $transient ) {
if ( 'wc_attribute_taxonomies' === $transient ) {
delete_transient( 'wc_block_product_filter_attribute_default_attribute' );
}
}
/**
* Register the query param keys.
*
* @param array $filter_param_keys The active filters data.
* @param array $url_param_keys The query param parsed from the URL.
*
* @return array Active filters param keys.
*/
public function get_filter_query_param_keys( $filter_param_keys, $url_param_keys ) {
$attribute_param_keys = array_filter(
$url_param_keys,
function ( $param ) {
return strpos( $param, 'filter_' ) === 0 || strpos( $param, 'query_type_' ) === 0;
}
);
return array_merge(
$filter_param_keys,
$attribute_param_keys
);
}
/**
* Prepare the active filter items.
*
* @param array $items The active filter items.
* @param array $params The query param parsed from the URL.
* @return array Active filters items.
*/
public function prepare_selected_filters( $items, $params ) {
$product_attributes_map = array_reduce(
wc_get_attribute_taxonomies(),
function ( $acc, $attribute_object ) {
$acc[ $attribute_object->attribute_name ] = $attribute_object->attribute_label;
return $acc;
},
array()
);
$active_product_attributes = array_reduce(
array_keys( $params ),
function ( $acc, $attribute ) {
if ( strpos( $attribute, 'filter_' ) === 0 ) {
$acc[] = str_replace( 'filter_', '', $attribute );
}
return $acc;
},
array()
);
$active_product_attributes = array_filter(
$active_product_attributes,
function ( $item ) use ( $product_attributes_map ) {
return in_array( $item, array_keys( $product_attributes_map ), true );
}
);
foreach ( $active_product_attributes as $product_attribute ) {
if ( empty( $params[ "filter_{$product_attribute}" ] ) || ! is_string( $params[ "filter_{$product_attribute}" ] ) ) {
continue;
}
$terms = explode( ',', $params[ "filter_{$product_attribute}" ] );
$attribute_label = wc_attribute_label( "pa_{$product_attribute}" );
$attribute_query_type = $params[ "query_type_{$product_attribute}" ] ?? 'or';
// Get attribute term by slug.
foreach ( $terms as $term ) {
$term_object = get_term_by( 'slug', $term, "pa_{$product_attribute}" );
$items[] = array(
'type' => 'attribute/' . $product_attribute,
'value' => $term,
'activeLabel' => "$attribute_label: $term_object->name",
'attributeQueryType' => $attribute_query_type,
);
}
}
return $items;
}
/**
* Render the block.
*
* @param array $block_attributes Block attributes.
* @param string $content Block content.
* @param WP_Block $block Block instance.
* @return string Rendered block type output.
*/
protected function render( $block_attributes, $content, $block ) {
if ( empty( $block_attributes['attributeId'] ) ) {
$default_product_attribute = $this->get_default_product_attribute();
$block_attributes['attributeId'] = $default_product_attribute->attribute_id;
}
// don't render if its admin, or ajax in progress.
if ( is_admin() || wp_doing_ajax() || empty( $block_attributes['attributeId'] ) ) {
return '';
}
$product_attribute = wc_get_attribute( $block_attributes['attributeId'] );
$attribute_counts = $this->get_attribute_counts( $block, $product_attribute->slug, $block_attributes['queryType'] );
$hide_empty = $block_attributes['hideEmpty'] ?? true;
$orderby = $block_attributes['sortOrder'] ? explode( '-', $block_attributes['sortOrder'] )[0] : 'name';
$order = $block_attributes['sortOrder'] ? strtoupper( explode( '-', $block_attributes['sortOrder'] )[1] ) : 'DESC';
$args = array(
'taxonomy' => $product_attribute->slug,
'orderby' => $orderby,
'order' => $order,
);
if ( $hide_empty ) {
$args['include'] = array_keys( $attribute_counts );
} else {
$args['hide_empty'] = false;
}
$attribute_terms = get_terms( $args );
$filter_param_key = 'filter_' . str_replace( 'pa_', '', $product_attribute->slug );
$filter_params = $block->context['filterParams'] ?? array();
$selected_terms = array();
if ( $filter_params && ! empty( $filter_params[ $filter_param_key ] ) && is_string( $filter_params[ $filter_param_key ] ) ) {
$selected_terms = array_filter( explode( ',', $filter_params[ $filter_param_key ] ) );
}
$filter_context = array(
'showCounts' => $block_attributes['showCounts'] ?? false,
'items' => array(),
);
if ( ! empty( $attribute_counts ) ) {
$attribute_options = array_map(
function ( $term ) use ( $block_attributes, $attribute_counts, $selected_terms, $product_attribute ) {
$term = (array) $term;
$term['count'] = $attribute_counts[ $term['term_id'] ] ?? 0;
return array(
'label' => $term['name'],
'ariaLabel' => $term['name'],
'value' => $term['slug'],
'selected' => in_array( $term['slug'], $selected_terms, true ),
'count' => $term['count'],
'type' => 'attribute/' . str_replace( 'pa_', '', $product_attribute->slug ),
'attributeQueryType' => $block_attributes['queryType'],
);
},
$attribute_terms
);
$filter_context['items'] = $attribute_options;
}
$wrapper_attributes = array(
'data-wp-interactive' => 'woocommerce/product-filters',
'data-wp-key' => wp_unique_prefixed_id( $this->get_full_block_name() ),
'data-wp-context' => wp_json_encode(
array(
'activeLabelTemplate' => "$product_attribute->name: {{label}}",
'filterType' => 'attribute/' . str_replace( 'pa_', '', $product_attribute->slug ),
),
JSON_HEX_TAG | JSON_HEX_APOS | JSON_HEX_QUOT | JSON_HEX_AMP
),
);
if ( empty( $filter_context['items'] ) ) {
$wrapper_attributes['hidden'] = true;
$wrapper_attributes['class'] = 'wc-block-product-filter--hidden';
}
return sprintf(
'<div %1$s>%2$s</div>',
get_block_wrapper_attributes( $wrapper_attributes ),
array_reduce(
$block->parsed_block['innerBlocks'],
function ( $carry, $parsed_block ) use ( $filter_context ) {
$carry .= ( new \WP_Block( $parsed_block, array( 'filterData' => $filter_context ) ) )->render();
return $carry;
},
''
)
);
}
/**
* Retrieve the attribute count for current block.
*
* @param WP_Block $block Block instance.
* @param string $slug Attribute slug.
* @param string $query_type Query type, accept 'and' or 'or'.
*/
private function get_attribute_counts( $block, $slug, $query_type ) {
$query_vars = ProductCollectionUtils::get_query_vars( $block, 1 );
if ( 'and' !== strtolower( $query_type ) ) {
unset( $query_vars[ 'filter_' . str_replace( 'pa_', '', $slug ) ] );
}
if ( isset( $query_vars['taxonomy'] ) && false !== strpos( $query_vars['taxonomy'], 'pa_' ) ) {
unset(
$query_vars['taxonomy'],
$query_vars['term']
);
}
if ( ! empty( $query_vars['tax_query'] ) ) {
// phpcs:ignore WordPress.DB.SlowDBQuery.slow_db_query_tax_query
$query_vars['tax_query'] = ProductCollectionUtils::remove_query_array( $query_vars['tax_query'], 'taxonomy', $slug );
}
$container = wc_get_container();
$counts = $container->get( FilterDataProvider::class )->with( $container->get( QueryClauses::class ) )->get_attribute_counts( $query_vars, $slug );
$attribute_counts = array();
foreach ( $counts as $key => $value ) {
$attribute_counts[] = array(
'term' => $key,
'count' => intval( $value ),
);
}
$attribute_counts = array_reduce(
$attribute_counts,
function ( $acc, $count ) {
$acc[ $count['term'] ] = $count['count'];
return $acc;
},
array()
);
return $attribute_counts;
}
/**
* Get the attribute if with most term but closest to 30 terms.
*
* @return object
*/
private function get_default_product_attribute() {
// Cache this variable in memory to prevent repeated database queries to check
// for transient in the same request.
static $cached = null;
if ( $cached ) {
return $cached;
}
$cached = get_transient( 'wc_block_product_filter_attribute_default_attribute' );
if (
$cached &&
isset( $cached->attribute_id ) &&
isset( $cached->attribute_name ) &&
isset( $cached->attribute_label ) &&
isset( $cached->attribute_type ) &&
isset( $cached->attribute_orderby ) &&
isset( $cached->attribute_public ) &&
'0' !== $cached->attribute_id
) {
return $cached;
}
$attributes = wc_get_attribute_taxonomies();
$attributes_count = array_map(
function ( $attribute ) {
return intval(
wp_count_terms(
array(
'taxonomy' => 'pa_' . $attribute->attribute_name,
'hide_empty' => false,
)
)
);
},
$attributes
);
asort( $attributes_count );
$search = 30;
$closest = null;
$attribute_id = null;
foreach ( $attributes_count as $id => $count ) {
if ( null === $closest || abs( $search - $closest ) > abs( $count - $search ) ) {
$closest = $count;
$attribute_id = $id;
}
if ( $closest && $count >= $search ) {
break;
}
}
$default_attribute = (object) array(
'attribute_id' => '0',
'attribute_name' => 'attribute',
'attribute_label' => __( 'Attribute', 'woocommerce' ),
'attribute_type' => 'select',
'attribute_orderby' => 'menu_order',
'attribute_public' => 0,
);
if ( $attribute_id ) {
$default_attribute = $attributes[ $attribute_id ];
set_transient( 'wc_block_product_filter_attribute_default_attribute', $default_attribute, DAY_IN_SECONDS );
}
return $default_attribute;
}
/**
* Register pattern for default product attribute.
*/
public function register_block_patterns() {
$default_attribute = $this->get_default_product_attribute();
register_block_pattern(
'woocommerce/default-attribute-filter',
array(
'title' => '',
'inserter' => false,
'content' => strtr(
'
<!-- wp:woocommerce/product-filter-attribute {"attributeId":{{attribute_id}}} -->
<div class="wp-block-woocommerce-product-filter-attribute">
<!-- wp:group {"metadata":{"name":"Header"},"style":{"spacing":{"blockGap":"0"}},"layout":{"type":"flex","flexWrap":"nowrap"}} -->
<div class="wp-block-group">
<!-- wp:heading {"level":3} -->
<h3 class="wp-block-heading">{{attribute_label}}</h3>
<!-- /wp:heading -->
<!-- /wp:group -->
<!-- wp:woocommerce/product-filter-checkbox-list {"lock":{"remove":true}} -->
<div class="wp-block-woocommerce-product-filter-checkbox-list wc-block-product-filter-checkbox-list"></div>
<!-- /wp:woocommerce/product-filter-checkbox-list -->
</div>
<!-- /wp:woocommerce/product-filter-attribute -->
',
array(
'{{attribute_id}}' => intval( $default_attribute->attribute_id ),
'{{attribute_label}}' => esc_html( $default_attribute->attribute_label ),
)
),
)
);
}
/**
* Disable the editor style handle for this block type.
*
* @return null
*/
protected function get_block_type_editor_style() {
return null;
}
/**
* Disable the script handle for this block type. We use block.json to load the script.
*
* @param string|null $key The key of the script to get.
* @return null
*/
protected function get_block_type_script( $key = null ) {
return null;
}
}
