WooCommerce Code Reference

QueryBuilder
in package

QueryBuilder class.

Responsible for constructing and modifying product queries.

Table of Contents

$attributes_filter_query_args  : array<string|int, mixed>
All the query args related to the filter by attributes block.
$collection_handler_store  : array<string|int, mixed>
Collection handler store.
$custom_order_opts  : array<string|int, mixed>
Orderby options not natively supported by WordPress REST API
$valid_query_vars  : array<string|int, mixed>
All query args from WP_Query.
__construct()  : mixed
Constructor.
add_price_range_filter_posts_clauses()  : mixed
Add the `posts_clauses` filter to the main query.
add_price_sorting_posts_clauses()  : array<string|int, mixed>
Add the `posts_clauses` filter to add price-based sorting
add_sales_sorting_posts_clauses()  : array<string|int, mixed>
Add the `posts_clauses` filter to add sales-based sorting
get_custom_order_opts()  : array<string|int, mixed>
Get custom order options.
get_final_frontend_query()  : mixed
Get the final query arguments for the frontend.
get_final_query_args()  : mixed
Get final query args based on provided values
get_preview_query_args()  : mixed
Get query args for preview mode. These query args will be used with WP_Query to fetch the products.
get_price_range_query_args()  : array<string|int, mixed>
Get query arguments for price range filter.
set_attributes_filter_query_args()  : mixed
Set attributes filter query args.
set_collection_handler()  : mixed
Set collection handler.
set_collection_handler_store()  : mixed
Set the collection handler store.
adjust_price_filter_for_tax_class()  : float
Adjusts a price filter based on a tax class and whether or not the amount includes or excludes taxes.
append_product_sorting_table_join()  : string
Join wc_product_meta_lookup to posts if not already joined.
get_price_filter_query_for_displayed_taxes()  : string
Get query for price filters when dealing with displayed taxes.
array_merge_recursive_replace_non_array_properties()  : mixed
Merge two array recursively but replace the non-array values instead of merging them. The merging strategy:
get_custom_orderby_query()  : array<string|int, mixed>
Return query params to support custom sort values
get_date_query()  : array<string|int, mixed>
Constructs a date query for product filtering based on a specified time frame.
get_featured_query()  : array<string|int, mixed>
Generates a tax query to filter products based on their "featured" status.
get_filter_by_attributes_query()  : array<string|int, mixed>
Return a query that filters products by attributes.
get_filter_by_attributes_query_vars()  : array<string|int, mixed>
Get all the query args related to the filter by attributes block.
get_filter_by_price_query()  : array<string|int, mixed>
Return a query that filters products by price.
get_filter_by_rating_query()  : array<string|int, mixed>
Return a query that filters products by rating.
get_filter_by_stock_status_query()  : array<string|int, mixed>
Return a query that filters products by stock status.
get_filter_by_taxonomies_query()  : array<string|int, mixed>
Return a query to filter products by taxonomies (product categories, product tags, etc.)
get_handpicked_query()  : array<string|int, mixed>
Generates a post__in query to filter products to the set of provided IDs.
get_on_sale_products_query()  : array<string|int, mixed>
Return a query for on sale products.
get_product_attributes_query()  : array<string|int, mixed>
Return the `tax_query` for the requested attributes
get_product_visibility_query()  : array<string|int, mixed>
Return a query for product visibility depending on their stock status.
get_queries_by_applied_filters()  : array<string|int, mixed>
Return queries that are generated by query args.
get_stock_status_query()  : array<string|int, mixed>
Return a query for products depending on their stock status.
get_valid_query_vars()  : array<string|int, mixed>
Return or initialize $valid_query_vars.
merge_post__in()  : array<string|int, int>
Merge all of the 'post__in' values and return an array containing only values that are present in all arrays.
merge_queries()  : array<string|int, mixed>
Merge in the first parameter the keys "post_in", "meta_query" and "tax_query" of the second parameter.
merge_tax_queries()  : array<string|int, mixed>
Merge tax_queries from various queries.
should_adjust_price_range_for_taxes()  : bool
Determines if price filters need adjustment based on the tax display settings.

Properties

$custom_order_opts

Orderby options not natively supported by WordPress REST API

protected array<string|int, mixed> $custom_order_opts = array('popularity', 'rating', 'post__in', 'price', 'sales', 'menu_order', 'random')

Methods

add_price_range_filter_posts_clauses()

Add the `posts_clauses` filter to the main query.

public add_price_range_filter_posts_clauses(array<string|int, mixed> $clauses, WP_Query $query) : mixed
Parameters
$clauses : array<string|int, mixed>

The query clauses.

$query : WP_Query

The WP_Query instance.

Return values
mixed

add_price_sorting_posts_clauses()

Add the `posts_clauses` filter to add price-based sorting

public add_price_sorting_posts_clauses(array<string|int, mixed> $clauses, WP_Query $query) : array<string|int, mixed>
Parameters
$clauses : array<string|int, mixed>

The list of clauses for the query.

$query : WP_Query

The WP_Query instance.

Return values
array<string|int, mixed>Modified list of clauses.

add_sales_sorting_posts_clauses()

Add the `posts_clauses` filter to add sales-based sorting

public add_sales_sorting_posts_clauses(array<string|int, mixed> $clauses, WP_Query $query) : array<string|int, mixed>
Parameters
$clauses : array<string|int, mixed>

The list of clauses for the query.

$query : WP_Query

The WP_Query instance.

Return values
array<string|int, mixed>Modified list of clauses.

get_final_frontend_query()

Get the final query arguments for the frontend.

public get_final_frontend_query(array<string|int, mixed> $collection_args, array<string|int, mixed> $query[, int $page = 1 ][, bool $is_exclude_applied_filters = false ]) : mixed
Parameters
$collection_args : array<string|int, mixed>

Any special arguments that should change the behavior of the query.

$query : array<string|int, mixed>

The query arguments.

$page : int = 1

The page number.

$is_exclude_applied_filters : bool = false

Whether to exclude the applied filters or not.

Return values
mixed

get_final_query_args()

Get final query args based on provided values

public get_final_query_args(array<string|int, mixed> $collection_args, array<string|int, mixed> $common_query_values, array<string|int, mixed> $query[, bool $is_exclude_applied_filters = false ]) : mixed
Parameters
$collection_args : array<string|int, mixed>

Any special arguments that should change the behavior of the query.

$common_query_values : array<string|int, mixed>

Common query values.

$query : array<string|int, mixed>

Query from block context.

$is_exclude_applied_filters : bool = false

Whether to exclude the applied filters or not.

Return values
mixed

get_preview_query_args()

Get query args for preview mode. These query args will be used with WP_Query to fetch the products.

public get_preview_query_args(array<string|int, mixed> $collection_args, array<string|int, mixed> $args, WP_REST_Request $request) : mixed
Parameters
$collection_args : array<string|int, mixed>

Any collection-specific arguments.

$args : array<string|int, mixed>

Query args.

$request : WP_REST_Request

Request.

Return values
mixed

get_price_range_query_args()

Get query arguments for price range filter.

public get_price_range_query_args(array<string|int, mixed> $price_range) : array<string|int, mixed>

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.

Parameters
$price_range : array<string|int, mixed>

Price range with min and max values.

Return values
array<string|int, mixed>Query arguments.

set_attributes_filter_query_args()

Set attributes filter query args.

public set_attributes_filter_query_args(array<string|int, mixed> $args) : mixed
Parameters
$args : array<string|int, mixed>

The attributes filter query arguments.

Return values
mixed

set_collection_handler()

Set collection handler.

public set_collection_handler(string $collection_name, array<string|int, mixed> $handlers) : mixed
Parameters
$collection_name : string

The name of the custom collection.

$handlers : array<string|int, mixed>

Collection handlers.

Return values
mixed

set_collection_handler_store()

Set the collection handler store.

public set_collection_handler_store(array<string|int, mixed> $collection_handler_store) : mixed
Parameters
$collection_handler_store : array<string|int, mixed>

The collection handler store containing registered collection handlers.

Return values
mixed

adjust_price_filter_for_tax_class()

Adjusts a price filter based on a tax class and whether or not the amount includes or excludes taxes.

protected adjust_price_filter_for_tax_class(float $price_filter, string $tax_class) : float

This calculation logic is based on wc_get_price_excluding_tax and wc_get_price_including_tax in core.

Parameters
$price_filter : float

Price filter amount as entered.

$tax_class : string

Tax class for adjustment.

Return values
float

append_product_sorting_table_join()

Join wc_product_meta_lookup to posts if not already joined.

protected append_product_sorting_table_join(string $sql) : string
Parameters
$sql : string

SQL join.

Return values
string

get_price_filter_query_for_displayed_taxes()

Get query for price filters when dealing with displayed taxes.

protected get_price_filter_query_for_displayed_taxes(float $price_filter[, string $column = 'min_price' ][, string $operator = '>=' ]) : string
Parameters
$price_filter : float

Price filter to apply.

$column : string = 'min_price'

Price being filtered (min or max).

$operator : string = '>='

Comparison operator for column.

Return values
stringConstructed query.

array_merge_recursive_replace_non_array_properties()

Merge two array recursively but replace the non-array values instead of merging them. The merging strategy:

private array_merge_recursive_replace_non_array_properties(array<string|int, mixed> $base, array<string|int, mixed> $new_array) : mixed
  • 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_array = ['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_array = ['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_array = ['post__in' => [3, 4, 5, 6, 7]] Result: ['post__in' => [1, 2, 3, 4, 5, 3, 4, 5, 6, 7]]

Parameters
$base : array<string|int, mixed>

First array.

$new_array : array<string|int, mixed>

Second array.

Return values
mixed

get_custom_orderby_query()

Return query params to support custom sort values

private get_custom_orderby_query(string $orderby) : array<string|int, mixed>
Parameters
$orderby : string

Sort order option.

Return values
array<string|int, mixed>

get_date_query()

Constructs a date query for product filtering based on a specified time frame.

private get_date_query(array<string|int, mixed> $time_frame) : array<string|int, mixed>
Parameters
$time_frame : array<string|int, mixed>

{ 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 values
array<string|int, mixed>Date query array; empty if parameters are invalid.

Generates a tax query to filter products based on their "featured" status.

private get_featured_query(bool $featured) : array<string|int, mixed>

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.

Parameters
$featured : bool

A flag indicating whether to filter products based on featured status.

Return values
array<string|int, mixed>A tax query for fetching featured products if `$featured` is true; otherwise, an empty array.

get_filter_by_attributes_query_vars()

Get all the query args related to the filter by attributes block.

private get_filter_by_attributes_query_vars() : array<string|int, mixed>
Return values
array<string|int, mixed>[color] => Array ( [filter] => filter_color [query_type] => query_type_color ) [size] => Array ( [filter] => filter_size [query_type] => query_type_size ) )

get_filter_by_taxonomies_query()

Return a query to filter products by taxonomies (product categories, product tags, etc.)

private get_filter_by_taxonomies_query(array<string|int, mixed> $tax_query) : array<string|int, mixed>

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"

Parameters
$tax_query : array<string|int, mixed>

Query to filter products by taxonomies.

Return values
array<string|int, mixed>Query to filter products by taxonomies.

get_handpicked_query()

Generates a post__in query to filter products to the set of provided IDs.

private get_handpicked_query(array<string|int, int>|false $handpicked_products) : array<string|int, mixed>
Parameters
$handpicked_products : array<string|int, int>|false

The products to filter.

Return values
array<string|int, mixed>The post__in query.

get_on_sale_products_query()

Return a query for on sale products.

private get_on_sale_products_query(bool $is_on_sale) : array<string|int, mixed>
Parameters
$is_on_sale : bool

Whether to query for on sale products.

Return values
array<string|int, mixed>

get_product_attributes_query()

Return the `tax_query` for the requested attributes

private get_product_attributes_query([array<string|int, mixed> $attributes = array() ]) : array<string|int, mixed>
Parameters
$attributes : array<string|int, mixed> = array()

Attributes and their terms.

Return values
array<string|int, mixed>

get_product_visibility_query()

Return a query for product visibility depending on their stock status.

private get_product_visibility_query(array<string|int, mixed> $stock_query, array<string|int, mixed> $stock_status) : array<string|int, mixed>
Parameters
$stock_query : array<string|int, mixed>

Stock status query.

$stock_status : array<string|int, mixed>

Selected stock status.

Return values
array<string|int, mixed>Tax query for product visibility.

get_stock_status_query()

Return a query for products depending on their stock status.

private get_stock_status_query(array<string|int, mixed> $stock_statuses) : array<string|int, mixed>
Parameters
$stock_statuses : array<string|int, mixed>

An array of acceptable stock statuses.

Return values
array<string|int, mixed>

merge_post__in()

Merge all of the 'post__in' values and return an array containing only values that are present in all arrays.

private merge_post__in(array<string|int, array<string|int, int>> ...$post__in) : array<string|int, int>
Parameters
$post__in : array<string|int, array<string|int, int>>

The 'post__in' values to be merged.

Return values
array<string|int, int>The merged 'post__in' values.

merge_queries()

Merge in the first parameter the keys "post_in", "meta_query" and "tax_query" of the second parameter.

private merge_queries(array<string|int, array<string|int, mixed>> ...$queries) : array<string|int, mixed>
Parameters
$queries : array<string|int, array<string|int, mixed>>

Query arrays to be merged.

Return values
array<string|int, mixed>

merge_tax_queries()

Merge tax_queries from various queries.

private merge_tax_queries(array<string|int, mixed> ...$queries) : array<string|int, mixed>
Parameters
$queries : array<string|int, mixed>

Query arrays to be merged.

Return values
array<string|int, mixed>

should_adjust_price_range_for_taxes()

Determines if price filters need adjustment based on the tax display settings.

private should_adjust_price_range_for_taxes() : bool

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 values
boolTrue if the price filters need to be adjusted for tax display settings, false otherwise.