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<?php
namespace Automattic\WooCommerce\Blocks\BlockTypes;
use Automattic\WooCommerce\Blocks\Utils\ProductCollectionUtils;
use InvalidArgumentException;
use WP_Query;
use WC_Tax;
/**
* ProductCollection class.
*/
class ProductCollection extends AbstractBlock {
/**
* Block name.
*
* @var string
*/
protected $block_name = 'product-collection';
/**
* An associative array of collection handlers.
*
* @var array<string, callable> $collection_handler_store
* Keys are collection names, values are callable handlers for custom collection behavior.
*/
protected $collection_handler_store = array();
/**
* The Block with its attributes before it gets rendered
*
* @var array
*/
protected $parsed_block;
/**
* All query args from WP_Query.
*
* @var array
*/
protected $valid_query_vars;
/**
* All the query args related to the filter by attributes block.
*
* @var array
*/
protected $attributes_filter_query_args = array();
/**
* Orderby options not natively supported by WordPress REST API
*
* @var array
*/
protected $custom_order_opts = array( 'popularity', 'rating', 'post__in', 'price', 'sales', 'menu_order', 'random' );
/**
* The render state of the product collection block.
*
* These props are runtime-based and reinitialize for every block on a page.
*
* @var array
*/
private $render_state = array(
'has_results' => false,
'has_no_results_block' => false,
);
/**
* Initialize this block type.
*
* - Hook into WP lifecycle.
* - Register the block with WordPress.
* - Hook into pre_render_block to update the query.
*/
protected function initialize() {
parent::initialize();
// Update query for frontend rendering.
add_filter(
'query_loop_block_query_vars',
array( $this, 'build_frontend_query' ),
10,
3
);
add_filter(
'pre_render_block',
array( $this, 'add_support_for_filter_blocks' ),
10,
2
);
// Update the query for Editor.
add_filter( 'rest_product_query', array( $this, 'update_rest_query_in_editor' ), 10, 2 );
// Extend allowed `collection_params` for the REST API.
add_filter( 'rest_product_collection_params', array( $this, 'extend_rest_query_allowed_params' ), 10, 1 );
// Provide location context into block's context.
add_filter( 'render_block_context', array( $this, 'provide_location_context_for_inner_blocks' ), 11, 1 );
// Disable block render if the ProductTemplate block is empty.
add_filter(
'render_block_woocommerce/product-template',
function ( $html ) {
$this->render_state['has_results'] = ! empty( $html );
return $html;
},
100,
1
);
// Enable block render if the ProductCollectionNoResults block is rendered.
add_filter(
'render_block_woocommerce/product-collection-no-results',
function ( $html ) {
$this->render_state['has_no_results_block'] = ! empty( $html );
return $html;
},
100,
1
);
// Interactivity API: Add navigation directives to the product collection block.
add_filter( 'render_block_woocommerce/product-collection', array( $this, 'handle_rendering' ), 10, 2 );
add_filter( 'render_block_core/query-pagination', array( $this, 'add_navigation_link_directives' ), 10, 3 );
add_filter( 'render_block_core/post-title', array( $this, 'add_product_title_click_event_directives' ), 10, 3 );
add_filter( 'posts_clauses', array( $this, 'add_price_range_filter_posts_clauses' ), 10, 2 );
// Disable client-side-navigation if incompatible blocks are detected.
add_filter( 'render_block_data', array( $this, 'disable_enhanced_pagination' ), 10, 1 );
$this->register_core_collections();
}
/**
* Get the styles for the list element (fixed width).
*
* @param string $fixed_width Fixed width value.
* @return string
*/
protected function get_list_styles( $fixed_width ) {
$style = '';
if ( isset( $fixed_width ) ) {
$style .= sprintf( 'width:%s;', esc_attr( $fixed_width ) );
$style .= 'margin: 0 auto;';
}
return $style;
}
/**
* Set the style attribute for fixed width.
*
* @param WP_HTML_Tag_Processor $p The HTML tag processor.
* @param string $fixed_width The fixed width value.
*/
private function set_fixed_width_style( $p, $fixed_width ) {
$p->set_attribute( 'style', $this->get_list_styles( $fixed_width ) );
}
/**
* Handle block dimensions if width type is set to 'fixed'.
*
* @param WP_HTML_Tag_Processor $p The HTML tag processor.
* @param array $block The block details.
*/
private function handle_block_dimensions( $p, $block ) {
if ( isset( $block['attrs']['dimensions'] ) && isset( $block['attrs']['dimensions']['widthType'] ) ) {
if ( 'fixed' === $block['attrs']['dimensions']['widthType'] ) {
$this->set_fixed_width_style( $p, $block['attrs']['dimensions']['fixedWidth'] );
}
}
}
/**
* Handle the rendering of the block.
*
* @param string $block_content The block content about to be rendered.
* @param array $block The block being rendered.
*
* @return string
*/
public function handle_rendering( $block_content, $block ) {
if ( $this->should_prevent_render() ) {
return ''; // Prevent rendering.
}
// Reset the render state for the next render.
$this->reset_render_state();
return $this->enhance_product_collection_with_interactivity( $block_content, $block );
}
/**
* Check if the block should be prevented from rendering.
*
* @return bool
*/
private function should_prevent_render() {
return ! $this->render_state['has_results'] && ! $this->render_state['has_no_results_block'];
}
/**
* Reset the render state.
*/
private function reset_render_state() {
$this->render_state = array(
'has_results' => false,
'has_no_results_block' => false,
);
}
/**
* Provides the location context to each inner block of the product collection block.
* Hint: Only blocks using the 'query' context will be affected.
*
* The sourceData structure depends on the context type as follows:
* - site: [ ]
* - order: [ 'orderId' => int ]
* - cart: [ 'productIds' => int[] ]
* - archive: [ 'taxonomy' => string, 'termId' => int ]
* - product: [ 'productId' => int ]
*
* @example array(
* 'type' => 'product',
* 'sourceData' => array( 'productId' => 123 ),
* )
*
* @param array $context The block context.
* @return array $context {
* The block context including the product collection location context.
*
* @type array $productCollectionLocation {
* @type string $type The context type. Possible values are 'site', 'order', 'cart', 'archive', 'product'.
* @type array $sourceData The context source data. Can be the product ID of the viewed product, the order ID of the current order viewed, etc. See structure above for more details.
* }
* }
*/
public function provide_location_context_for_inner_blocks( $context ) {
// Run only on frontend.
// This is needed to avoid SSR renders while in editor. @see https://github.com/woocommerce/woocommerce/issues/45181.
if ( is_admin() || \WC()->is_rest_api_request() ) {
return $context;
}
// Target only product collection's inner blocks that use the 'query' context.
if ( ! isset( $context['query'] ) || ! isset( $context['query']['isProductCollectionBlock'] ) || ! $context['query']['isProductCollectionBlock'] ) {
return $context;
}
$is_in_single_product = isset( $context['singleProduct'] ) && ! empty( $context['postId'] );
$context['productCollectionLocation'] = $is_in_single_product ? array(
'type' => 'product',
'sourceData' => array(
'productId' => absint( $context['postId'] ),
),
) : $this->get_location_context();
return $context;
}
/**
* Get the global location context.
* Serve as a runtime cache for the location context.
*
* @see ProductCollectionUtils::parse_frontend_location_context()
*
* @return array The location context.
*/
private function get_location_context() {
static $location_context = null;
if ( null === $location_context ) {
$location_context = ProductCollectionUtils::parse_frontend_location_context();
}
return $location_context;
}
/**
* Check if next tag is a PC block.
*
* @param WP_HTML_Tag_processor $p Initial tag processor.
*
* @return bool Answer if PC block is available.
*/
private function is_next_tag_product_collection( $p ) {
return $p->next_tag( array( 'class_name' => 'wp-block-woocommerce-product-collection' ) );
}
/**
* Set PC block namespace for Interactivity API.
*
* @param WP_HTML_Tag_processor $p Initial tag processor.
*/
private function set_product_collection_namespace( $p ) {
$p->set_attribute( 'data-wc-interactive', wp_json_encode( array( 'namespace' => 'woocommerce/product-collection' ), JSON_HEX_TAG | JSON_HEX_APOS | JSON_HEX_QUOT | JSON_HEX_AMP ) );
}
/**
* Attach the init directive to Product Collection block to call
* the onRender callback.
*
* @param string $block_content The HTML content of the block.
* @param string $collection Collection type.
*
* @return string Updated HTML content.
*/
private function add_rendering_callback( $block_content, $collection ) {
$p = new \WP_HTML_Tag_Processor( $block_content );
// Add `data-init to the product collection block so we trigger JS event on render.
if ( $this->is_next_tag_product_collection( $p ) ) {
$p->set_attribute(
'data-wc-init',
'callbacks.onRender'
);
$p->set_attribute(
'data-wc-context',
$collection ? wp_json_encode(
array( 'collection' => $collection ),
JSON_HEX_TAG | JSON_HEX_APOS | JSON_HEX_QUOT | JSON_HEX_AMP
) : '{}'
);
}
return $p->get_updated_html();
}
/**
* Attach all the Interactivity API directives responsible
* for client-side navigation.
*
* @param string $block_content The HTML content of the block.
*
* @return string Updated HTML content.
*/
private function enable_client_side_navigation( $block_content ) {
$p = new \WP_HTML_Tag_Processor( $block_content );
// Add `data-wc-navigation-id to the product collection block.
if ( $this->is_next_tag_product_collection( $p ) ) {
$p->set_attribute(
'data-wc-navigation-id',
'wc-product-collection-' . $this->parsed_block['attrs']['queryId']
);
$current_context = json_decode( $p->get_attribute( 'data-wc-context' ) ?? '{}', true );
$p->set_attribute(
'data-wc-context',
wp_json_encode(
array_merge(
$current_context,
array(
// The message to be announced by the screen reader when the page is loading or loaded.
'accessibilityLoadingMessage' => __( 'Loading page, please wait.', 'woocommerce' ),
'accessibilityLoadedMessage' => __( 'Page Loaded.', 'woocommerce' ),
// We don't prefetch the links if user haven't clicked on pagination links yet.
// This way we avoid prefetching when the page loads.
'isPrefetchNextOrPreviousLink' => false,
),
),
JSON_HEX_TAG | JSON_HEX_APOS | JSON_HEX_QUOT | JSON_HEX_AMP
)
);
$block_content = $p->get_updated_html();
}
/**
* Add two div's:
* 1. Pagination animation for visual users.
* 2. Accessibility div for screen readers, to announce page load states.
*/
$last_tag_position = strripos( $block_content, '</div>' );
$accessibility_and_animation_html = '
<div
data-wc-interactive="{"namespace":"woocommerce/product-collection"}"
class="wc-block-product-collection__pagination-animation"
data-wc-class--start-animation="state.startAnimation"
data-wc-class--finish-animation="state.finishAnimation">
</div>
<div
data-wc-interactive="{"namespace":"woocommerce/product-collection"}"
class="screen-reader-text"
aria-live="polite"
data-wc-text="context.accessibilityMessage">
</div>
';
return substr_replace(
$block_content,
$accessibility_and_animation_html,
$last_tag_position,
0
);
}
/**
* Enhances the Product Collection block with client-side pagination.
*
* This function identifies Product Collection blocks and adds necessary data attributes
* to enable client-side navigation and animation effects. It also enqueues the Interactivity API runtime.
*
* @param string $block_content The HTML content of the block.
* @param array $block Block details, including its attributes.
*
* @return string Updated block content with added interactivity attributes.
*/
public function enhance_product_collection_with_interactivity( $block_content, $block ) {
$is_product_collection_block = $block['attrs']['query']['isProductCollectionBlock'] ?? false;
if ( $is_product_collection_block ) {
// Enqueue the Interactivity API runtime and set the namespace.
wp_enqueue_script( 'wc-interactivity' );
$p = new \WP_HTML_Tag_Processor( $block_content );
if ( $this->is_next_tag_product_collection( $p ) ) {
$this->set_product_collection_namespace( $p );
}
// Check if dimensions need to be set and handle accordingly.
$this->handle_block_dimensions( $p, $block );
$block_content = $p->get_updated_html();
$collection = $block['attrs']['collection'] ?? '';
$block_content = $this->add_rendering_callback( $block_content, $collection );
$is_enhanced_pagination_enabled = ! ( $block['attrs']['forcePageReload'] ?? false );
if ( $is_enhanced_pagination_enabled ) {
$block_content = $this->enable_client_side_navigation( $block_content );
}
}
return $block_content;
}
/**
* Add interactive links to all anchors inside the Query Pagination block.
* This enabled client-side navigation for the product collection block.
*
* @param string $block_content The block content.
* @param array $block The full block, including name and attributes.
* @param \WP_Block $instance The block instance.
*/
public function add_navigation_link_directives( $block_content, $block, $instance ) {
$query_context = $instance->context['query'] ?? array();
$is_product_collection_block = $query_context['isProductCollectionBlock'] ?? false;
$query_id = $instance->context['queryId'] ?? null;
$parsed_query_id = $this->parsed_block['attrs']['queryId'] ?? null;
$is_enhanced_pagination_enabled = ! ( $this->parsed_block['attrs']['forcePageReload'] ?? false );
// Only proceed if the block is a product collection block,
// enhanced pagination is enabled and query IDs match.
if ( $is_product_collection_block && $is_enhanced_pagination_enabled && $query_id === $parsed_query_id ) {
$block_content = $this->process_pagination_links( $block_content );
}
return $block_content;
}
/**
* Add interactivity to the Product Title block within Product Collection.
* This enables the triggering of a custom event when the product title is clicked.
*
* @param string $block_content The block content.
* @param array $block The full block, including name and attributes.
* @param \WP_Block $instance The block instance.
* @return string Modified block content with added interactivity.
*/
public function add_product_title_click_event_directives( $block_content, $block, $instance ) {
$namespace = $instance->attributes['__woocommerceNamespace'] ?? '';
$is_product_title_block = 'woocommerce/product-collection/product-title' === $namespace;
$is_link = $instance->attributes['isLink'] ?? false;
// Only proceed if the block is a Product Title (Post Title variation) block.
if ( $is_product_title_block && $is_link ) {
$p = new \WP_HTML_Tag_Processor( $block_content );
$p->next_tag( array( 'class_name' => 'wp-block-post-title' ) );
$is_anchor = $p->next_tag( array( 'tag_name' => 'a' ) );
if ( $is_anchor ) {
$p->set_attribute( 'data-wc-on--click', 'woocommerce/product-collection::actions.viewProduct' );
$block_content = $p->get_updated_html();
}
}
return $block_content;
}
/**
* Process pagination links within the block content.
*
* @param string $block_content The block content.
* @return string The updated block content.
*/
private function process_pagination_links( $block_content ) {
if ( ! $block_content ) {
return $block_content;
}
$p = new \WP_HTML_Tag_Processor( $block_content );
$p->next_tag( array( 'class_name' => 'wp-block-query-pagination' ) );
// This will help us to find the start of the block content using the `seek` method.
$p->set_bookmark( 'start' );
$this->update_pagination_anchors( $p, 'page-numbers', 'product-collection-pagination-numbers' );
$this->update_pagination_anchors( $p, 'wp-block-query-pagination-next', 'product-collection-pagination--next' );
$this->update_pagination_anchors( $p, 'wp-block-query-pagination-previous', 'product-collection-pagination--previous' );
return $p->get_updated_html();
}
/**
* Sets up data attributes required for interactivity and client-side navigation.
*
* @param \WP_HTML_Tag_Processor $processor The HTML tag processor.
* @param string $class_name The class name of the anchor tags.
* @param string $key_prefix The prefix for the data-wc-key attribute.
*/
private function update_pagination_anchors( $processor, $class_name, $key_prefix ) {
// Start from the beginning of the block content.
$processor->seek( 'start' );
while ( $processor->next_tag(
array(
'tag_name' => 'a',
'class_name' => $class_name,
)
) ) {
$this->set_product_collection_namespace( $processor );
$processor->set_attribute( 'data-wc-on--click', 'actions.navigate' );
$processor->set_attribute( 'data-wc-key', $key_prefix . '--' . esc_attr( wp_rand() ) );
if ( in_array( $class_name, array( 'wp-block-query-pagination-next', 'wp-block-query-pagination-previous' ), true ) ) {
$processor->set_attribute( 'data-wc-watch', 'callbacks.prefetch' );
$processor->set_attribute( 'data-wc-on--mouseenter', 'actions.prefetchOnHover' );
}
}
}
/**
* Verifies if the inner block is compatible with Interactivity API.
*
* @param string $block_name Name of the block to verify.
* @return boolean
*/
private function is_block_compatible( $block_name ) {
// Check for explicitly unsupported blocks.
$unsupported_blocks = array(
'core/post-content',
'woocommerce/mini-cart',
'woocommerce/featured-product',
'woocommerce/active-filters',
'woocommerce/price-filter',
'woocommerce/stock-filter',
'woocommerce/attribute-filter',
'woocommerce/rating-filter',
);
if ( in_array( $block_name, $unsupported_blocks, true ) ) {
return false;
}
// Check for supported prefixes.
if (
str_starts_with( $block_name, 'core/' ) ||
str_starts_with( $block_name, 'woocommerce/' )
) {
return true;
}
// Otherwise block is unsupported.
return false;
}
/**
* Check inner blocks of Product Collection block if there's one
* incompatible with the Interactivity API and if so, disable client-side
* navigation.
*
* @param array $parsed_block The block being rendered.
* @return string Returns the parsed block, unmodified.
*/
public function disable_enhanced_pagination( $parsed_block ) {
static $enhanced_query_stack = array();
static $dirty_enhanced_queries = array();
static $render_product_collection_callback = null;
$block_name = $parsed_block['blockName'];
$is_product_collection_block = $parsed_block['attrs']['query']['isProductCollectionBlock'] ?? false;
$force_page_reload_global =
$parsed_block['attrs']['forcePageReload'] ?? false &&
isset( $parsed_block['attrs']['queryId'] );
if (
$is_product_collection_block &&
'woocommerce/product-collection' === $block_name &&
! $force_page_reload_global
) {
$enhanced_query_stack[] = $parsed_block['attrs']['queryId'];
if ( ! isset( $render_product_collection_callback ) ) {
/**
* Filter that disables the enhanced pagination feature during block
* rendering when a plugin block has been found inside. It does so
* by adding an attribute called `data-wp-navigation-disabled` which
* is later handled by the front-end logic.
*
* @param string $content The block content.
* @param array $block The full block, including name and attributes.
* @return string Returns the modified output of the query block.
*/
$render_product_collection_callback = static function ( $content, $block ) use ( &$enhanced_query_stack, &$dirty_enhanced_queries, &$render_product_collection_callback ) {
$force_page_reload =
$parsed_block['attrs']['forcePageReload'] ?? false &&
isset( $block['attrs']['queryId'] );
if ( $force_page_reload ) {
return $content;
}
if ( isset( $dirty_enhanced_queries[ $block['attrs']['queryId'] ] ) ) {
$p = new \WP_HTML_Tag_Processor( $content );
if ( $p->next_tag() ) {
$p->set_attribute( 'data-wc-navigation-disabled', 'true' );
}
$content = $p->get_updated_html();
$dirty_enhanced_queries[ $block['attrs']['queryId'] ] = null;
}
array_pop( $enhanced_query_stack );
if ( empty( $enhanced_query_stack ) ) {
remove_filter( 'render_block_woocommerce/product-collection', $render_product_collection_callback );
$render_product_collection_callback = null;
}
return $content;
};
add_filter( 'render_block_woocommerce/product-collection', $render_product_collection_callback, 10, 2 );
}
} elseif (
! empty( $enhanced_query_stack ) &&
isset( $block_name ) &&
! $this->is_block_compatible( $block_name )
) {
foreach ( $enhanced_query_stack as $query_id ) {
$dirty_enhanced_queries[ $query_id ] = true;
}
}
return $parsed_block;
}
/**
* 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 );
// The `loop_shop_per_page` filter can be found in WC_Query::product_query().
// phpcs:ignore WooCommerce.Commenting.CommentHooks.MissingHookComment
$this->asset_data_registry->add( 'loopShopPerPage', apply_filters( 'loop_shop_per_page', wc_get_default_products_per_row() * wc_get_default_product_rows_per_page() ) );
}
/**
* Update the query for the product query block in Editor.
*
* @param array $query Query args.
* @param WP_REST_Request $request Request.
*/
public function update_rest_query_in_editor( $query, $request ): array {
// Only update the query if this is a product collection block.
$is_product_collection_block = $request->get_param( 'isProductCollectionBlock' );
if ( ! $is_product_collection_block ) {
return $query;
}
$product_collection_query_context = $request->get_param( 'productCollectionQueryContext' );
$collection_args = array(
'name' => $product_collection_query_context['collection'] ?? '',
// The editor uses a REST query to grab product post types. This means we don't have a block
// instance to work with and the client needs to provide the location context.
'productCollectionLocation' => $request->get_param( 'productCollectionLocation' ),
);
// Allow collections to modify the collection arguments passed to the query builder.
$handlers = $this->collection_handler_store[ $collection_args['name'] ] ?? null;
if ( isset( $handlers['editor_args'] ) ) {
$collection_args = call_user_func( $handlers['editor_args'], $collection_args, $query, $request );
}
// When requested, short-circuit the query and return the preview query args.
$preview_state = $request->get_param( 'previewState' );
if ( isset( $preview_state['isPreview'] ) && 'true' === $preview_state['isPreview'] ) {
return $this->get_preview_query_args( $collection_args, $query, $request );
}
$orderby = $request->get_param( 'orderby' );
$on_sale = $request->get_param( 'woocommerceOnSale' ) === 'true';
$stock_status = $request->get_param( 'woocommerceStockStatus' );
$product_attributes = $request->get_param( 'woocommerceAttributes' );
$handpicked_products = $request->get_param( 'woocommerceHandPickedProducts' );
$featured = $request->get_param( 'featured' );
$time_frame = $request->get_param( 'timeFrame' );
$price_range = $request->get_param( 'priceRange' );
// This argument is required for the tests to PHP Unit Tests to run correctly.
// Most likely this argument is being accessed in the test environment image.
$query['author'] = '';
$final_query = $this->get_final_query_args(
$collection_args,
$query,
array(
'orderby' => $orderby,
'on_sale' => $on_sale,
'stock_status' => $stock_status,
'product_attributes' => $product_attributes,
'handpicked_products' => $handpicked_products,
'featured' => $featured,
'timeFrame' => $time_frame,
'priceRange' => $price_range,
)
);
return $final_query;
}
/**
* Add support for filter blocks:
* - Price filter block
* - Attributes filter block
* - Rating filter block
* - In stock filter block etc.
*
* @param array $pre_render The pre-rendered block.
* @param array $parsed_block The parsed block.
*/
public function add_support_for_filter_blocks( $pre_render, $parsed_block ) {
$is_product_collection_block = $parsed_block['attrs']['query']['isProductCollectionBlock'] ?? false;
if ( ! $is_product_collection_block ) {
return $pre_render;
}
$this->parsed_block = $parsed_block;
$this->asset_data_registry->add( 'hasFilterableProducts', true );
/**
* It enables the page to refresh when a filter is applied, ensuring that the product collection block,
* which is a server-side rendered (SSR) block, retrieves the products that match the filters.
*/
$this->asset_data_registry->add( 'isRenderingPhpTemplate', true );
return $pre_render;
}
/**
* Return a custom query based on attributes, filters and global WP_Query.
*
* @param WP_Query $query The WordPress Query.
* @param WP_Block $block The block being rendered.
* @param int $page The page number.
*
* @return array
*/
public function build_frontend_query( $query, $block, $page ) {
// If not in context of product collection block, return the query as is.
$is_product_collection_block = $block->context['query']['isProductCollectionBlock'] ?? false;
if ( ! $is_product_collection_block ) {
return $query;
}
$block_context_query = $block->context['query'];
// phpcs:ignore WordPress.DB.SlowDBQuery
$block_context_query['tax_query'] = ! empty( $query['tax_query'] ) ? $query['tax_query'] : array();
$inherit = $block->context['query']['inherit'] ?? false;
$filterable = $block->context['query']['filterable'] ?? false;
$is_exclude_applied_filters = ! ( $inherit || $filterable );
$collection_args = array(
'name' => $block->context['collection'] ?? '',
'productCollectionLocation' => $block->context['productCollectionLocation'] ?? null,
);
return $this->get_final_frontend_query(
$collection_args,
$block_context_query,
$page,
$is_exclude_applied_filters
);
}
/**
* Get the final query arguments for the frontend.
*
* @param array $collection_args Any special arguments that should change the behavior of the query.
* @param array $query The query arguments.
* @param int $page The page number.
* @param bool $is_exclude_applied_filters Whether to exclude the applied filters or not.
*/
private function get_final_frontend_query( $collection_args, $query, $page = 1, $is_exclude_applied_filters = false ) {
$product_ids = $query['post__in'] ?? array();
$offset = $query['offset'] ?? 0;
$per_page = $query['perPage'] ?? 9;
$common_query_values = array(
// phpcs:ignore WordPress.DB.SlowDBQuery.slow_db_query_meta_query
'meta_query' => array(),
'posts_per_page' => $per_page,
'order' => $query['order'] ?? 'asc',
'offset' => ( $per_page * ( $page - 1 ) ) + $offset,
'post__in' => $product_ids,
'post_status' => 'publish',
'post_type' => 'product',
// phpcs:ignore WordPress.DB.SlowDBQuery.slow_db_query_tax_query
'tax_query' => array(),
'paged' => $page,
's' => $query['search'],
);
$is_on_sale = $query['woocommerceOnSale'] ?? false;
$product_attributes = $query['woocommerceAttributes'] ?? array();
$taxonomies_query = $this->get_filter_by_taxonomies_query( $query['tax_query'] ?? array() );
$handpicked_products = $query['woocommerceHandPickedProducts'] ?? array();
$time_frame = $query['timeFrame'] ?? null;
$price_range = $query['priceRange'] ?? null;
// Allow collections to modify the collection arguments passed to the query builder.
$handlers = $this->collection_handler_store[ $collection_args['name'] ] ?? null;
if ( isset( $handlers['frontend_args'] ) ) {
$collection_args = call_user_func( $handlers['frontend_args'], $collection_args, $query );
}
$final_query = $this->get_final_query_args(
$collection_args,
$common_query_values,
array(
'on_sale' => $is_on_sale,
'stock_status' => $query['woocommerceStockStatus'],
'orderby' => $query['orderBy'],
'product_attributes' => $product_attributes,
'taxonomies_query' => $taxonomies_query,
'handpicked_products' => $handpicked_products,
'featured' => $query['featured'] ?? false,
'timeFrame' => $time_frame,
'priceRange' => $price_range,
),
$is_exclude_applied_filters
);
return $final_query;
}
/**
* Get final query args based on provided values
*
* @param array $collection_args Any special arguments that should change the behavior of the query.
* @param array $common_query_values Common query values.
* @param array $query Query from block context.
* @param bool $is_exclude_applied_filters Whether to exclude the applied filters or not.
*/
private function get_final_query_args(
$collection_args,
$common_query_values,
$query,
$is_exclude_applied_filters = false
) {
$orderby_query = $query['orderby'] ? $this->get_custom_orderby_query( $query['orderby'] ) : array();
$on_sale_query = $this->get_on_sale_products_query( $query['on_sale'] );
$stock_query = $this->get_stock_status_query( $query['stock_status'] );
$visibility_query = is_array( $query['stock_status'] ) ? $this->get_product_visibility_query( $stock_query, $query['stock_status'] ) : array();
$featured_query = $this->get_featured_query( $query['featured'] ?? false );
$attributes_query = $this->get_product_attributes_query( $query['product_attributes'] );
$taxonomies_query = $query['taxonomies_query'] ?? array();
$tax_query = $this->merge_tax_queries( $visibility_query, $attributes_query, $taxonomies_query, $featured_query );
$date_query = $this->get_date_query( $query['timeFrame'] ?? array() );
$price_query_args = $this->get_price_range_query_args( $query['priceRange'] ?? array() );
$handpicked_query = $this->get_handpicked_query( $query['handpicked_products'] ?? false );
// We exclude applied filters to generate product ids for the filter blocks.
$applied_filters_query = $is_exclude_applied_filters ? array() : $this->get_queries_by_applied_filters();
// Allow collections to provide their own query parameters.
$handlers = $this->collection_handler_store[ $collection_args['name'] ] ?? null;
if ( isset( $handlers['build_query'] ) ) {
$collection_query = call_user_func(
$handlers['build_query'],
$collection_args,
$common_query_values,
$query,
$is_exclude_applied_filters
);
} else {
$collection_query = array();
}
return $this->merge_queries(
$common_query_values,
$orderby_query,
$on_sale_query,
$stock_query,
$tax_query,
$applied_filters_query,
$date_query,
$price_query_args,
$handpicked_query,
$collection_query
);
}
/**
* Get query args for preview mode. These query args will be used with WP_Query to fetch the products.
*
* @param array $collection_args Any collection-specific arguments.
* @param array $args Query args.
* @param WP_REST_Request $request Request.
*/
private function get_preview_query_args( $collection_args, $args, $request ) {
$collection_query = array();
// Allow collections to override the preview mode behavior.
$handlers = $this->collection_handler_store[ $collection_args['name'] ] ?? null;
if ( isset( $handlers['preview_query'] ) ) {
$collection_query = call_user_func( $handlers['preview_query'], $collection_args, $args, $request );
}
$args = $this->merge_queries( $args, $collection_query );
return $args;
}
/**
* Extends allowed `collection_params` for the REST API
*
* By itself, the REST API doesn't accept custom `orderby` values,
* even if they are supported by a custom post type.
*
* @param array $params A list of allowed `orderby` values.
*
* @return array
*/
public function extend_rest_query_allowed_params( $params ) {
$original_enum = isset( $params['orderby']['enum'] ) ? $params['orderby']['enum'] : array();
$params['orderby']['enum'] = array_unique( array_merge( $original_enum, $this->custom_order_opts ) );
return $params;
}
/**
* Merge in the first parameter the keys "post_in", "meta_query" and "tax_query" of the second parameter.
*
* @param array[] ...$queries Query arrays to be merged.
* @return array
*/
private function merge_queries( ...$queries ) {
// Rather than a simple merge, some query vars should be held aside and merged differently.
$special_query_vars = array(
'post__in' => array(),
);
$special_query_keys = array_keys( $special_query_vars );
$merged_query = array_reduce(
$queries,
function ( $acc, $query ) use ( $special_query_keys, &$special_query_vars ) {
if ( ! is_array( $query ) ) {
return $acc;
}
// When the $query has keys but doesn't contain any valid query keys, we unpack/spread it then merge.
if ( ! empty( $query ) && empty( array_intersect( $this->get_valid_query_vars(), array_keys( $query ) ) ) ) {
return $this->merge_queries( $acc, ...array_values( $query ) );
}
// Pull out the special query vars so we can merge them separately.
foreach ( $special_query_keys as $query_var ) {
if ( isset( $query[ $query_var ] ) ) {
$special_query_vars[ $query_var ][] = $query[ $query_var ];
unset( $query[ $query_var ] );
}
}
return $this->array_merge_recursive_replace_non_array_properties( $acc, $query );
},
array()
);
// Perform any necessary special merges.
$merged_query['post__in'] = $this->merge_post__in( ...$special_query_vars['post__in'] );
return $merged_query;
}
/**
* Merge all of the 'post__in' values and return an array containing only values that are present in all arrays.
*
* @param int[][] ...$post__in The 'post__in' values to be merged.
*
* @return int[] The merged 'post__in' values.
*/
private function merge_post__in( ...$post__in ) {
if ( empty( $post__in ) ) {
return array();
}
// Since we're using array_intersect, any array that is empty will result
// in an empty output array. To avoid this we need to make sure every
// argument is a non-empty array.
$post__in = array_filter(
$post__in,
function ( $val ) {
return is_array( $val ) && ! empty( $val );
}
);
if ( empty( $post__in ) ) {
return array();
}
// Since the 'post__in' filter is exclusionary we need to use an intersection of
// all of the arrays. This ensures one query doesn't add options that another
// has otherwise excluded from the results.
if ( count( $post__in ) > 1 ) {
$post__in = array_intersect( ...$post__in );
// An empty array means that there was no overlap between the filters and so
// the query should return no results.
if ( empty( $post__in ) ) {
return array( -1 );
}
} else {
$post__in = reset( $post__in );
}
return array_values( array_unique( $post__in, SORT_NUMERIC ) );
}
/**
* Return query params to support custom sort values
*
* @param string $orderby Sort order option.
*
* @return array
*/
private function get_custom_orderby_query( $orderby ) {
if ( ! in_array( $orderby, $this->custom_order_opts, true ) || 'post__in' === $orderby ) {
return array( 'orderby' => $orderby );
}
if ( 'price' === $orderby ) {
add_filter( 'posts_clauses', array( $this, 'add_price_sorting_posts_clauses' ), 10, 2 );
return array(
'isProductCollection' => true,
'orderby' => $orderby,
);
}
// The popularity orderby value here is for backwards compatibility as we have since removed the filter option.
if ( 'sales' === $orderby || 'popularity' === $orderby ) {
add_filter( 'posts_clauses', array( $this, 'add_sales_sorting_posts_clauses' ), 10, 2 );
return array(
'isProductCollection' => true,
'orderby' => $orderby,
);
}
if ( 'menu_order' === $orderby ) {
return array(
'orderby' => 'menu_order',
'order' => 'ASC',
);
}
if ( 'random' === $orderby ) {
return array(
'orderby' => 'rand',
);
}
$meta_keys = array(
'rating' => '_wc_average_rating',
);
return array(
// phpcs:ignore WordPress.DB.SlowDBQuery.slow_db_query_meta_key
'meta_key' => $meta_keys[ $orderby ],
'orderby' => 'meta_value_num',
);
}
/**
* Return a query for on sale products.
*
* @param bool $is_on_sale Whether to query for on sale products.
*
* @return array
*/
private function get_on_sale_products_query( $is_on_sale ) {
if ( ! $is_on_sale ) {
return array();
}
return array(
'post__in' => wc_get_product_ids_on_sale(),
);
}
/**
* Return or initialize $valid_query_vars.
*
* @return array
*/
private function get_valid_query_vars() {
if ( ! empty( $this->valid_query_vars ) ) {
return $this->valid_query_vars;
}
$valid_query_vars = array_keys( ( new WP_Query() )->fill_query_vars( array() ) );
$this->valid_query_vars = array_merge(
$valid_query_vars,
// fill_query_vars doesn't include these vars so we need to add them manually.
array(
'date_query',
'exact',
'ignore_sticky_posts',
'lazy_load_term_meta',
'meta_compare_key',
'meta_compare',
'meta_query',
'meta_type_key',
'meta_type',
'nopaging',
'offset',
'order',
'orderby',
'page',
'post_type',
'posts_per_page',
'suppress_filters',
'tax_query',
'isProductCollection',
'priceRange',
)
);
return $this->valid_query_vars;
}
/**
* Merge two array recursively but replace the non-array values instead of
* merging them. The merging strategy:
*
* - If keys from merge array doesn't exist in the base array, create them.
* - For array items with numeric keys, we merge them as normal.
* - For array items with string keys:
*
* - If the value isn't array, we'll use the value coming from the merge array.
* $base = ['orderby' => 'date']
* $new = ['orderby' => 'meta_value_num']
* Result: ['orderby' => 'meta_value_num']
*
* - If the value is array, we'll use recursion to merge each key.
* $base = ['meta_query' => [
* [
* 'key' => '_stock_status',
* 'compare' => 'IN'
* 'value' => ['instock', 'onbackorder']
* ]
* ]]
* $new = ['meta_query' => [
* [
* 'relation' => 'AND',
* [...<max_price_query>],
* [...<min_price_query>],
* ]
* ]]
* Result: ['meta_query' => [
* [
* 'key' => '_stock_status',
* 'compare' => 'IN'
* 'value' => ['instock', 'onbackorder']
* ],
* [
* 'relation' => 'AND',
* [...<max_price_query>],
* [...<min_price_query>],
* ]
* ]]
*
* $base = ['post__in' => [1, 2, 3, 4, 5]]
* $new = ['post__in' => [3, 4, 5, 6, 7]]
* Result: ['post__in' => [1, 2, 3, 4, 5, 3, 4, 5, 6, 7]]
*
* @param array $base First array.
* @param array $new Second array.
*/
private function array_merge_recursive_replace_non_array_properties( $base, $new ) {
foreach ( $new as $key => $value ) {
if ( is_numeric( $key ) ) {
$base[] = $value;
} elseif ( is_array( $value ) ) {
if ( ! isset( $base[ $key ] ) ) {
$base[ $key ] = array();
}
$base[ $key ] = $this->array_merge_recursive_replace_non_array_properties( $base[ $key ], $value );
} else {
$base[ $key ] = $value;
}
}
return $base;
}
/**
* Return a query for products depending on their stock status.
*
* @param array $stock_statuses An array of acceptable stock statuses.
* @return array
*/
private function get_stock_status_query( $stock_statuses ) {
if ( ! is_array( $stock_statuses ) ) {
return array();
}
$stock_status_options = array_keys( wc_get_product_stock_status_options() );
/**
* If all available stock status are selected, we don't need to add the
* meta query for stock status.
*/
if (
count( $stock_statuses ) === count( $stock_status_options ) &&
array_diff( $stock_statuses, $stock_status_options ) === array_diff( $stock_status_options, $stock_statuses )
) {
return array();
}
/**
* If all stock statuses are selected except 'outofstock', we use the
* product visibility query to filter out out of stock products.
*
* @see get_product_visibility_query()
*/
$diff = array_diff( $stock_status_options, $stock_statuses );
if ( count( $diff ) === 1 && in_array( 'outofstock', $diff, true ) ) {
return array();
}
return array(
// phpcs:ignore WordPress.DB.SlowDBQuery.slow_db_query_meta_query
'meta_query' => array(
array(
'key' => '_stock_status',
'value' => (array) $stock_statuses,
'compare' => 'IN',
),
),
);
}
/**
* Return a query for product visibility depending on their stock status.
*
* @param array $stock_query Stock status query.
* @param array $stock_status Selected stock status.
*
* @return array Tax query for product visibility.
*/
private function get_product_visibility_query( $stock_query, $stock_status ) {
$product_visibility_terms = wc_get_product_visibility_term_ids();
$product_visibility_not_in = array( is_search() ? $product_visibility_terms['exclude-from-search'] : $product_visibility_terms['exclude-from-catalog'] );
// Hide out of stock products.
if ( empty( $stock_query ) && ! in_array( 'outofstock', $stock_status, true ) ) {
$product_visibility_not_in[] = $product_visibility_terms['outofstock'];
}
return array(
// phpcs:ignore WordPress.DB.SlowDBQuery.slow_db_query_tax_query
'tax_query' => array(
array(
'taxonomy' => 'product_visibility',
'field' => 'term_taxonomy_id',
'terms' => $product_visibility_not_in,
'operator' => 'NOT IN',
),
),
);
}
/**
* Generates a tax query to filter products based on their "featured" status.
* If the `$featured` parameter is true, the function will return a tax query
* that filters products to only those marked as featured.
* If `$featured` is false, an empty array is returned, meaning no filtering will be applied.
*
* @param bool $featured A flag indicating whether to filter products based on featured status.
*
* @return array A tax query for fetching featured products if `$featured` is true; otherwise, an empty array.
*/
private function get_featured_query( $featured ) {
if ( true !== $featured && 'true' !== $featured ) {
return array();
}
return array(
// phpcs:ignore WordPress.DB.SlowDBQuery.slow_db_query_tax_query
'tax_query' => array(
array(
'taxonomy' => 'product_visibility',
'field' => 'name',
'terms' => 'featured',
'operator' => 'IN',
),
),
);
}
/**
* Generates a post__in query to filter products to the set of provided IDs.
*
* @param int[]|false $handpicked_products The products to filter.
*
* @return array The post__in query.
*/
private function get_handpicked_query( $handpicked_products ) {
if ( false === $handpicked_products ) {
return array();
}
return array(
'post__in' => $handpicked_products,
);
}
/**
* Merge tax_queries from various queries.
*
* @param array ...$queries Query arrays to be merged.
* @return array
*/
private function merge_tax_queries( ...$queries ) {
$tax_query = array();
foreach ( $queries as $query ) {
if ( ! empty( $query['tax_query'] ) ) {
$tax_query = array_merge( $tax_query, $query['tax_query'] );
}
}
// phpcs:ignore WordPress.DB.SlowDBQuery.slow_db_query_tax_query
return array( 'tax_query' => $tax_query );
}
/**
* Return the `tax_query` for the requested attributes
*
* @param array $attributes Attributes and their terms.
*
* @return array
*/
private function get_product_attributes_query( $attributes = array() ) {
if ( empty( $attributes ) ) {
return array();
}
$grouped_attributes = array_reduce(
$attributes,
function ( $carry, $item ) {
$taxonomy = sanitize_title( $item['taxonomy'] );
if ( ! key_exists( $taxonomy, $carry ) ) {
$carry[ $taxonomy ] = array(
'field' => 'term_id',
'operator' => 'IN',
'taxonomy' => $taxonomy,
'terms' => array( $item['termId'] ),
);
} else {
$carry[ $taxonomy ]['terms'][] = $item['termId'];
}
return $carry;
},
array()
);
return array(
// phpcs:ignore WordPress.DB.SlowDBQuery.slow_db_query_tax_query
'tax_query' => array_values( $grouped_attributes ),
);
}
/**
* Return a query to filter products by taxonomies (product categories, product tags, etc.)
*
* For example:
* User could provide "Product Categories" using "Filters" ToolsPanel available in Inspector Controls.
* We use this function to extract its query from $tax_query.
*
* For example, this is how the query for product categories will look like in $tax_query array:
* Array
* (
* [taxonomy] => product_cat
* [terms] => Array
* (
* [0] => 36
* )
* )
*
* For product tags, taxonomy would be "product_tag"
*
* @param array $tax_query Query to filter products by taxonomies.
* @return array Query to filter products by taxonomies.
*/
private function get_filter_by_taxonomies_query( $tax_query ): array {
if ( ! is_array( $tax_query ) ) {
return array();
}
/**
* Get an array of taxonomy names associated with the "product" post type because
* we also want to include custom taxonomies associated with the "product" post type.
*/
$product_taxonomies = array_diff( get_object_taxonomies( 'product', 'names' ), array( 'product_visibility', 'product_shipping_class' ) );
$result = array_filter(
$tax_query,
function ( $item ) use ( $product_taxonomies ) {
return isset( $item['taxonomy'] ) && in_array( $item['taxonomy'], $product_taxonomies, true );
}
);
// phpcs:ignore WordPress.DB.SlowDBQuery
return ! empty( $result ) ? array( 'tax_query' => $result ) : array();
}
/**
* Return queries that are generated by query args.
*
* @return array
*/
private function get_queries_by_applied_filters() {
return array(
'price_filter' => $this->get_filter_by_price_query(),
'attributes_filter' => $this->get_filter_by_attributes_query(),
'stock_status_filter' => $this->get_filter_by_stock_status_query(),
'rating_filter' => $this->get_filter_by_rating_query(),
);
}
/**
* Return a query that filters products by price.
*
* @return array
*/
private function get_filter_by_price_query() {
$min_price = get_query_var( PriceFilter::MIN_PRICE_QUERY_VAR );
$max_price = get_query_var( PriceFilter::MAX_PRICE_QUERY_VAR );
$max_price_query = empty( $max_price ) ? array() : array(
'key' => '_price',
'value' => $max_price,
'compare' => '<=',
'type' => 'numeric',
);
$min_price_query = empty( $min_price ) ? array() : array(
'key' => '_price',
'value' => $min_price,
'compare' => '>=',
'type' => 'numeric',
);
if ( empty( $min_price_query ) && empty( $max_price_query ) ) {
return array();
}
return array(
// phpcs:ignore WordPress.DB.SlowDBQuery.slow_db_query_meta_query
'meta_query' => array(
array(
'relation' => 'AND',
$max_price_query,
$min_price_query,
),
),
);
}
/**
* Return a query that filters products by attributes.
*
* @return array
*/
private function get_filter_by_attributes_query() {
$attributes_filter_query_args = $this->get_filter_by_attributes_query_vars();
$queries = array_reduce(
$attributes_filter_query_args,
function ( $acc, $query_args ) {
$attribute_name = $query_args['filter'];
$attribute_query_type = $query_args['query_type'];
$attribute_value = get_query_var( $attribute_name );
$attribute_query = get_query_var( $attribute_query_type );
if ( empty( $attribute_value ) ) {
return $acc;
}
// It is necessary explode the value because $attribute_value can be a string with multiple values (e.g. "red,blue").
$attribute_value = explode( ',', $attribute_value );
$acc[] = array(
'taxonomy' => str_replace( AttributeFilter::FILTER_QUERY_VAR_PREFIX, 'pa_', $attribute_name ),
'field' => 'slug',
'terms' => $attribute_value,
'operator' => 'and' === $attribute_query ? 'AND' : 'IN',
);
return $acc;
},
array()
);
if ( empty( $queries ) ) {
return array();
}
return array(
// phpcs:ignore WordPress.DB.SlowDBQuery
'tax_query' => array(
array(
'relation' => 'AND',
$queries,
),
),
);
}
/**
* Get all the query args related to the filter by attributes block.
*
* @return array
* [color] => Array
* (
* [filter] => filter_color
* [query_type] => query_type_color
* )
*
* [size] => Array
* (
* [filter] => filter_size
* [query_type] => query_type_size
* )
* )
*/
private function get_filter_by_attributes_query_vars() {
if ( ! empty( $this->attributes_filter_query_args ) ) {
return $this->attributes_filter_query_args;
}
$this->attributes_filter_query_args = array_reduce(
wc_get_attribute_taxonomies(),
function ( $acc, $attribute ) {
$acc[ $attribute->attribute_name ] = array(
'filter' => AttributeFilter::FILTER_QUERY_VAR_PREFIX . $attribute->attribute_name,
'query_type' => AttributeFilter::QUERY_TYPE_QUERY_VAR_PREFIX . $attribute->attribute_name,
);
return $acc;
},
array()
);
return $this->attributes_filter_query_args;
}
/**
* Return a query that filters products by stock status.
*
* @return array
*/
private function get_filter_by_stock_status_query() {
$filter_stock_status_values = get_query_var( StockFilter::STOCK_STATUS_QUERY_VAR );
if ( empty( $filter_stock_status_values ) ) {
return array();
}
$filtered_stock_status_values = array_filter(
explode( ',', $filter_stock_status_values ),
function ( $stock_status ) {
return in_array( $stock_status, StockFilter::get_stock_status_query_var_values(), true );
}
);
if ( empty( $filtered_stock_status_values ) ) {
return array();
}
return array(
// Ignoring the warning of not using meta queries.
// phpcs:ignore WordPress.DB.SlowDBQuery.slow_db_query_meta_query
'meta_query' => array(
array(
'key' => '_stock_status',
'value' => $filtered_stock_status_values,
'operator' => 'IN',
),
),
);
}
/**
* Return a query that filters products by rating.
*
* @return array
*/
private function get_filter_by_rating_query() {
$filter_rating_values = get_query_var( RatingFilter::RATING_QUERY_VAR );
if ( empty( $filter_rating_values ) ) {
return array();
}
$parsed_filter_rating_values = explode( ',', $filter_rating_values );
$product_visibility_terms = wc_get_product_visibility_term_ids();
if ( empty( $parsed_filter_rating_values ) || empty( $product_visibility_terms ) ) {
return array();
}
$rating_terms = array_map(
function ( $rating ) use ( $product_visibility_terms ) {
return $product_visibility_terms[ 'rated-' . $rating ];
},
$parsed_filter_rating_values
);
return array(
// phpcs:ignore WordPress.DB.SlowDBQuery
'tax_query' => array(
array(
'field' => 'term_taxonomy_id',
'taxonomy' => 'product_visibility',
'terms' => $rating_terms,
'operator' => 'IN',
'rating_filter' => true,
),
),
);
}
/**
* Constructs a date query for product filtering based on a specified time frame.
*
* @param array $time_frame {
* Associative array with 'operator' (in or not-in) and 'value' (date string).
*
* @type string $operator Determines the inclusion or exclusion of the date range.
* @type string $value The date around which the range is applied.
* }
* @return array Date query array; empty if parameters are invalid.
*/
private function get_date_query( array $time_frame ): array {
// Validate time_frame elements.
if ( empty( $time_frame['operator'] ) || empty( $time_frame['value'] ) ) {
return array();
}
// Determine the query operator based on the 'operator' value.
$query_operator = 'in' === $time_frame['operator'] ? 'after' : 'before';
// Construct and return the date query.
return array(
'date_query' => array(
array(
'column' => 'post_date_gmt',
$query_operator => $time_frame['value'],
'inclusive' => true,
),
),
);
}
/**
* Get query arguments for price range filter.
* We are adding these extra query arguments to be used in `posts_clauses`
* because there are 2 special edge cases we wanna handle for Price range filter:
* Case 1: Prices excluding tax are displayed including tax
* Case 2: Prices including tax are displayed excluding tax
*
* Both of these cases require us to modify SQL query to get the correct results.
*
* See add_price_range_filter_posts_clauses function in this file for more details.
*
* @param array $price_range Price range with min and max values.
* @return array Query arguments.
*/
public function get_price_range_query_args( $price_range ) {
if ( empty( $price_range ) ) {
return array();
}
return array(
'isProductCollection' => true,
'priceRange' => $price_range,
);
}
/**
* Add the `posts_clauses` filter to the main query.
*
* @param array $clauses The query clauses.
* @param WP_Query $query The WP_Query instance.
*/
public function add_price_range_filter_posts_clauses( $clauses, $query ) {
$query_vars = $query->query_vars;
$is_product_collection_block = $query_vars['isProductCollection'] ?? false;
if ( ! $is_product_collection_block ) {
return $clauses;
}
$price_range = $query_vars['priceRange'] ?? null;
if ( empty( $price_range ) ) {
return $clauses;
}
global $wpdb;
$adjust_for_taxes = $this->should_adjust_price_range_for_taxes();
$clauses['join'] = $this->append_product_sorting_table_join( $clauses['join'] );
$min_price = $price_range['min'] ?? null;
if ( $min_price ) {
if ( $adjust_for_taxes ) {
$clauses['where'] .= $this->get_price_filter_query_for_displayed_taxes( $min_price, 'max_price', '>=' );
} else {
$clauses['where'] .= $wpdb->prepare( ' AND wc_product_meta_lookup.max_price >= %f ', $min_price );
}
}
$max_price = $price_range['max'] ?? null;
if ( $max_price ) {
if ( $adjust_for_taxes ) {
$clauses['where'] .= $this->get_price_filter_query_for_displayed_taxes( $max_price, 'min_price', '<=' );
} else {
$clauses['where'] .= $wpdb->prepare( ' AND wc_product_meta_lookup.min_price <= %f ', $max_price );
}
}
return $clauses;
}
/**
* Add the `posts_clauses` filter to add price-based sorting
*
* @param array $clauses The list of clauses for the query.
* @param WP_Query $query The WP_Query instance.
* @return array Modified list of clauses.
*/
public function add_price_sorting_posts_clauses( $clauses, $query ) {
$query_vars = $query->query_vars;
$is_product_collection_block = $query_vars['isProductCollection'] ?? false;
if ( ! $is_product_collection_block ) {
return $clauses;
}
$orderby = $query_vars['orderby'] ?? null;
if ( 'price' !== $orderby ) {
return $clauses;
}
$clauses['join'] = $this->append_product_sorting_table_join( $clauses['join'] );
$is_ascending_order = 'asc' === strtolower( $query_vars['order'] ?? 'desc' );
$clauses['orderby'] = $is_ascending_order ?
'wc_product_meta_lookup.min_price ASC, wc_product_meta_lookup.product_id ASC' :
'wc_product_meta_lookup.max_price DESC, wc_product_meta_lookup.product_id DESC';
return $clauses;
}
/**
* Add the `posts_clauses` filter to add sales-based sorting
*
* @param array $clauses The list of clauses for the query.
* @param WP_Query $query The WP_Query instance.
* @return array Modified list of clauses.
*/
public function add_sales_sorting_posts_clauses( $clauses, $query ) {
$query_vars = $query->query_vars;
$is_product_collection_block = $query_vars['isProductCollection'] ?? false;
if ( ! $is_product_collection_block ) {
return $clauses;
}
$orderby = $query_vars['orderby'] ?? null;
// The popularity orderby value here is for backwards compatibility as we have since removed the filter option.
if ( 'sales' !== $orderby && 'popularity' !== $orderby ) {
return $clauses;
}
$clauses['join'] = $this->append_product_sorting_table_join( $clauses['join'] );
$is_ascending_order = 'asc' === strtolower( $query_vars['order'] ?? 'desc' );
$clauses['orderby'] = $is_ascending_order ?
'wc_product_meta_lookup.total_sales ASC, wc_product_meta_lookup.product_id ASC' :
'wc_product_meta_lookup.total_sales DESC, wc_product_meta_lookup.product_id DESC';
return $clauses;
}
/**
* Determines if price filters need adjustment based on the tax display settings.
*
* This function checks if there's a discrepancy between how prices are stored in the database
* and how they are displayed to the user, specifically with respect to tax inclusion or exclusion.
* It returns true if an adjustment is needed, indicating that the price filters should account for this
* discrepancy to display accurate prices.
*
* @return bool True if the price filters need to be adjusted for tax display settings, false otherwise.
*/
private function should_adjust_price_range_for_taxes() {
$display_setting = get_option( 'woocommerce_tax_display_shop' ); // Tax display setting ('incl' or 'excl').
$price_storage_method = wc_prices_include_tax() ? 'incl' : 'excl';
return $display_setting !== $price_storage_method;
}
/**
* Join wc_product_meta_lookup to posts if not already joined.
*
* @param string $sql SQL join.
* @return string
*/
protected function append_product_sorting_table_join( $sql ) {
global $wpdb;
if ( ! strstr( $sql, 'wc_product_meta_lookup' ) ) {
$sql .= " LEFT JOIN {$wpdb->wc_product_meta_lookup} wc_product_meta_lookup ON $wpdb->posts.ID = wc_product_meta_lookup.product_id ";
}
return $sql;
}
/**
* Get query for price filters when dealing with displayed taxes.
*
* @param float $price_filter Price filter to apply.
* @param string $column Price being filtered (min or max).
* @param string $operator Comparison operator for column.
* @return string Constructed query.
*/
protected function get_price_filter_query_for_displayed_taxes( $price_filter, $column = 'min_price', $operator = '>=' ) {
global $wpdb;
// Select only used tax classes to avoid unwanted calculations.
$product_tax_classes = $wpdb->get_col( "SELECT DISTINCT tax_class FROM {$wpdb->wc_product_meta_lookup};" );
if ( empty( $product_tax_classes ) ) {
return '';
}
$or_queries = array();
// We need to adjust the filter for each possible tax class and combine the queries into one.
foreach ( $product_tax_classes as $tax_class ) {
$adjusted_price_filter = $this->adjust_price_filter_for_tax_class( $price_filter, $tax_class );
$or_queries[] = $wpdb->prepare(
'( wc_product_meta_lookup.tax_class = %s AND wc_product_meta_lookup.`' . esc_sql( $column ) . '` ' . esc_sql( $operator ) . ' %f )',
$tax_class,
$adjusted_price_filter
);
}
// phpcs:disable WordPress.DB.PreparedSQL.InterpolatedNotPrepared, WordPress.DB.PreparedSQL.NotPrepared
return $wpdb->prepare(
' AND (
wc_product_meta_lookup.tax_status = "taxable" AND ( 0=1 OR ' . implode( ' OR ', $or_queries ) . ')
OR ( wc_product_meta_lookup.tax_status != "taxable" AND wc_product_meta_lookup.`' . esc_sql( $column ) . '` ' . esc_sql( $operator ) . ' %f )
) ',
$price_filter
);
// phpcs:enable WordPress.DB.PreparedSQL.InterpolatedNotPrepared, WordPress.DB.PreparedSQL.NotPrepared
}
/**
* Adjusts a price filter based on a tax class and whether or not the amount includes or excludes taxes.
*
* This calculation logic is based on `wc_get_price_excluding_tax` and `wc_get_price_including_tax` in core.
*
* @param float $price_filter Price filter amount as entered.
* @param string $tax_class Tax class for adjustment.
* @return float
*/
protected function adjust_price_filter_for_tax_class( $price_filter, $tax_class ) {
$tax_display = get_option( 'woocommerce_tax_display_shop' );
$tax_rates = WC_Tax::get_rates( $tax_class );
$base_tax_rates = WC_Tax::get_base_tax_rates( $tax_class );
// If prices are shown incl. tax, we want to remove the taxes from the filter amount to match prices stored excl. tax.
if ( 'incl' === $tax_display ) {
/**
* Filters if taxes should be removed from locations outside the store base location.
*
* The woocommerce_adjust_non_base_location_prices filter can stop base taxes being taken off when dealing
* with out of base locations. e.g. If a product costs 10 including tax, all users will pay 10
* regardless of location and taxes.
*
* @since 2.6.0
*
* @internal Matches filter name in WooCommerce core.
*
* @param boolean $adjust_non_base_location_prices True by default.
* @return boolean
*/
$taxes = apply_filters( 'woocommerce_adjust_non_base_location_prices', true ) ? WC_Tax::calc_tax( $price_filter, $base_tax_rates, true ) : WC_Tax::calc_tax( $price_filter, $tax_rates, true );
return $price_filter - array_sum( $taxes );
}
// If prices are shown excl. tax, add taxes to match the prices stored in the DB.
$taxes = WC_Tax::calc_tax( $price_filter, $tax_rates, false );
return $price_filter + array_sum( $taxes );
}
/**
* Registers handlers for a collection.
*
* @param string $collection_name The name of the custom collection.
* @param callable $build_query A hook returning any custom query arguments to merge with the collection's query.
* @param callable|null $frontend_args An optional hook that returns any frontend collection arguments to pass to the query builder.
* @param callable|null $editor_args An optional hook that returns any REST collection arguments to pass to the query builder.
* @param callable|null $preview_query An optional hook that returns a query to use in preview mode.
*
* @throws \InvalidArgumentException If collection handlers are already registered for the given collection name.
*/
protected function register_collection_handlers( $collection_name, $build_query, $frontend_args = null, $editor_args = null, $preview_query = null ) {
if ( isset( $this->collection_handler_store[ $collection_name ] ) ) {
throw new \InvalidArgumentException( 'Collection handlers already registered for ' . esc_html( $collection_name ) );
}
$this->collection_handler_store[ $collection_name ] = array(
'build_query' => $build_query,
'frontend_args' => $frontend_args,
'editor_args' => $editor_args,
'preview_query' => $preview_query,
);
}
/**
* Registers any handlers for the core collections.
*/
protected function register_core_collections() {
$this->register_collection_handlers(
'woocommerce/product-collection/hand-picked',
function ( $collection_args, $common_query_values, $query ) {
// For Hand-Picked collection, if no products are selected, we should return an empty result set.
// This ensures that the collection doesn't display any products until the user explicitly chooses them.
if ( empty( $query['handpicked_products'] ) ) {
return array(
'post__in' => array( -1 ),
);
}
}
);
$this->register_collection_handlers(
'woocommerce/product-collection/related',
function ( $collection_args ) {
// No products should be shown if no related product reference is set.
if ( empty( $collection_args['relatedProductReference'] ) ) {
return array(
'post__in' => array( -1 ),
);
}
$category_callback = function () use ( $collection_args ) {
return $collection_args['relatedBy']['categories'];
};
$tag_callback = function () use ( $collection_args ) {
return $collection_args['relatedBy']['tags'];
};
add_filter( 'woocommerce_product_related_posts_relate_by_category', $category_callback, PHP_INT_MAX );
add_filter( 'woocommerce_product_related_posts_relate_by_tag', $tag_callback, PHP_INT_MAX );
$related_products = wc_get_related_products(
$collection_args['relatedProductReference'],
// Use a higher limit so that the result set contains enough products for the collection to subsequently filter.
100
);
remove_filter( 'woocommerce_product_related_posts_relate_by_category', $category_callback, PHP_INT_MAX );
remove_filter( 'woocommerce_product_related_posts_relate_by_tag', $tag_callback, PHP_INT_MAX );
if ( empty( $related_products ) ) {
return array(
'post__in' => array( -1 ),
);
}
// Have it filter the results to products related to the one provided.
return array(
'post__in' => $related_products,
);
},
function ( $collection_args, $query ) {
$product_reference = $query['productReference'] ?? null;
// Infer the product reference from the location if an explicit product is not set.
if ( empty( $product_reference ) ) {
$location = $collection_args['productCollectionLocation'];
if ( isset( $location['type'] ) && 'product' === $location['type'] ) {
$product_reference = $location['sourceData']['productId'];
}
}
$collection_args['relatedProductReference'] = $product_reference;
$collection_args['relatedBy'] = array(
'categories' => isset( $query['relatedBy']['categories'] ) && true === $query['relatedBy']['categories'],
'tags' => isset( $query['relatedBy']['tags'] ) && true === $query['relatedBy']['tags'],
);
return $collection_args;
},
function ( $collection_args, $query, $request ) {
$product_reference = $request->get_param( 'productReference' );
// In some cases the editor will send along block location context that we can infer the product reference from.
if ( empty( $product_reference ) ) {
$location = $collection_args['productCollectionLocation'];
if ( isset( $location['type'] ) && 'product' === $location['type'] ) {
$product_reference = $location['sourceData']['productId'];
}
}
$collection_args['relatedProductReference'] = $product_reference;
$collection_args['relatedBy'] = array(
'categories' => rest_sanitize_boolean( $request->get_param( 'relatedBy' )['categories'] ?? false ),
'tags' => rest_sanitize_boolean( $request->get_param( 'relatedBy' )['tags'] ?? false ),
);
return $collection_args;
}
);
$this->register_collection_handlers(
'woocommerce/product-collection/upsells',
function ( $collection_args ) {
$product_reference = $collection_args['upsellsProductReferences'] ?? null;
// No products should be shown if no upsells product reference is set.
if ( empty( $product_reference ) ) {
return array(
'post__in' => array( -1 ),
);
}
$products = array_map( 'wc_get_product', $product_reference );
if ( empty( $products ) ) {
return array(
'post__in' => array( -1 ),
);
}
$all_upsells = array_reduce(
$products,
function ( $acc, $product ) {
return array_merge(
$acc,
$product->get_upsell_ids()
);
},
array()
);
// Remove duplicates and product references. We don't want to display
// what's already in cart.
$unique_upsells = array_unique( $all_upsells );
$upsells = array_diff( $unique_upsells, $product_reference );
return array(
'post__in' => empty( $upsells ) ? array( -1 ) : $upsells,
);
},
function ( $collection_args, $query ) {
$product_references = isset( $query['productReference'] ) ? array( $query['productReference'] ) : null;
// Infer the product reference from the location if an explicit product is not set.
if ( empty( $product_references ) ) {
$location = $collection_args['productCollectionLocation'];
if ( isset( $location['type'] ) && 'product' === $location['type'] ) {
$product_references = array( $location['sourceData']['productId'] );
}
if ( isset( $location['type'] ) && 'cart' === $location['type'] ) {
$product_references = $location['sourceData']['productIds'];
}
if ( isset( $location['type'] ) && 'order' === $location['type'] ) {
$product_references = $this->get_product_ids_from_order( $location['sourceData']['orderId'] ?? 0 );
}
}
$collection_args['upsellsProductReferences'] = $product_references;
return $collection_args;
},
function ( $collection_args, $query, $request ) {
$product_reference = $request->get_param( 'productReference' );
// In some cases the editor will send along block location context that we can infer the product reference from.
if ( empty( $product_reference ) ) {
$location = $collection_args['productCollectionLocation'];
if ( isset( $location['type'] ) && 'product' === $location['type'] ) {
$product_reference = $location['sourceData']['productId'];
}
}
$collection_args['upsellsProductReferences'] = array( $product_reference );
return $collection_args;
}
);
$this->register_collection_handlers(
'woocommerce/product-collection/cross-sells',
function ( $collection_args ) {
$product_reference = $collection_args['crossSellsProductReferences'] ?? null;
// No products should be shown if no cross-sells product reference is set.
if ( empty( $product_reference ) ) {
return array(
'post__in' => array( -1 ),
);
}
$products = array_filter( array_map( 'wc_get_product', $product_reference ) );
if ( empty( $products ) ) {
return array(
'post__in' => array( -1 ),
);
}
$product_ids = array_map(
function ( $product ) {
return $product->get_id();
},
$products
);
$all_cross_sells = array_reduce(
$products,
function ( $acc, $product ) {
return array_merge(
$acc,
$product->get_cross_sell_ids()
);
},
array()
);
// Remove duplicates and product references. We don't want to display
// what's already in cart.
$unique_cross_sells = array_unique( $all_cross_sells );
$cross_sells = array_diff( $unique_cross_sells, $product_ids );
return array(
'post__in' => empty( $cross_sells ) ? array( -1 ) : $cross_sells,
);
},
function ( $collection_args, $query ) {
$product_references = isset( $query['productReference'] ) ? array( $query['productReference'] ) : null;
// Infer the product reference from the location if an explicit product is not set.
if ( empty( $product_references ) ) {
$location = $collection_args['productCollectionLocation'];
if ( isset( $location['type'] ) && 'product' === $location['type'] ) {
$product_references = array( $location['sourceData']['productId'] );
}
if ( isset( $location['type'] ) && 'cart' === $location['type'] ) {
$product_references = $location['sourceData']['productIds'];
}
if ( isset( $location['type'] ) && 'order' === $location['type'] ) {
$product_references = $this->get_product_ids_from_order( $location['sourceData']['orderId'] ?? 0 );
}
}
$collection_args['crossSellsProductReferences'] = $product_references;
return $collection_args;
},
function ( $collection_args, $query, $request ) {
$product_reference = $request->get_param( 'productReference' );
// In some cases the editor will send along block location context that we can infer the product reference from.
if ( empty( $product_reference ) ) {
$location = $collection_args['productCollectionLocation'];
if ( isset( $location['type'] ) && 'product' === $location['type'] ) {
$product_reference = $location['sourceData']['productId'];
}
}
$collection_args['crossSellsProductReferences'] = array( $product_reference );
return $collection_args;
}
);
}
/**
* Get product IDs from an order.
*
* @param int $order_id The order ID.
* @return array<int> The product IDs.
*/
private function get_product_ids_from_order( $order_id ) {
$product_references = array();
if ( empty( $order_id ) ) {
return $product_references;
}
$order = wc_get_order( $order_id );
if ( $order ) {
$product_references = array_filter(
array_map(
function ( $item ) {
return $item->get_product_id();
},
$order->get_items( 'line_item' )
)
);
}
return $product_references;
}
}