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<?php
/**
* REST API Reports stock controller
*
* Handles requests to the /reports/stock endpoint.
*/
namespace Automattic\WooCommerce\Admin\API\Reports\Stock;
defined( 'ABSPATH' ) || exit;
use Automattic\WooCommerce\Admin\API\Reports\GenericController;
use Automattic\WooCommerce\Admin\API\Reports\ExportableInterface;
use WP_REST_Request;
use WP_REST_Response;
/**
* REST API Reports stock controller class.
*
* @internal
* @extends GenericController
*/
class Controller extends GenericController implements ExportableInterface {
/**
* Route base.
*
* @var string
*/
protected $rest_base = 'reports/stock';
/**
* Registered stock status options.
*
* @var array
*/
protected $status_options;
/**
* Constructor.
*/
public function __construct() {
$this->status_options = wc_get_product_stock_status_options();
}
/**
* Maps query arguments from the REST request.
*
* @param WP_REST_Request $request Request array.
* @return array
*/
protected function prepare_reports_query( $request ) {
$args = array();
$args['offset'] = $request['offset'];
$args['order'] = $request['order'];
$args['orderby'] = $request['orderby'];
$args['paged'] = $request['page'];
$args['post__in'] = $request['include'];
$args['post__not_in'] = $request['exclude'];
$args['posts_per_page'] = $request['per_page'];
$args['post_parent__in'] = $request['parent'];
$args['post_parent__not_in'] = $request['parent_exclude'];
if ( 'date' === $args['orderby'] ) {
$args['orderby'] = 'date ID';
} elseif ( 'include' === $args['orderby'] ) {
$args['orderby'] = 'post__in';
} elseif ( 'id' === $args['orderby'] ) {
$args['orderby'] = 'ID'; // ID must be capitalized.
}
$args['post_type'] = array( 'product', 'product_variation' );
if ( 'lowstock' === $request['type'] ) {
$args['low_in_stock'] = true;
} elseif ( in_array( $request['type'], array_keys( $this->status_options ), true ) ) {
$args['stock_status'] = $request['type'];
}
$args['ignore_sticky_posts'] = true;
return $args;
}
/**
* Query products.
*
* @param array $query_args Query args.
* @return array
*/
protected function get_products( $query_args ) {
$query = new \WP_Query();
$result = $query->query( $query_args );
$total_posts = $query->found_posts;
if ( $total_posts < 1 && isset( $query_args['paged'] ) && absint( $query_args['paged'] ) > 1 ) {
// Out-of-bounds, run the query again without LIMIT for total count.
unset( $query_args['paged'] );
$count_query = new \WP_Query();
$count_query->query( $query_args );
$total_posts = $count_query->found_posts;
}
return array(
'objects' => array_map( 'wc_get_product', $result ),
'total' => (int) $total_posts,
'pages' => (int) ceil( $total_posts / (int) $query->query_vars['posts_per_page'] ),
);
}
/**
* Get all reports.
*
* @param WP_REST_Request $request Request data.
* @return array|WP_Error
*/
public function get_items( $request ) {
add_filter( 'posts_where', array( __CLASS__, 'add_wp_query_filter' ), 10, 2 );
add_filter( 'posts_join', array( __CLASS__, 'add_wp_query_join' ), 10, 2 );
add_filter( 'posts_groupby', array( __CLASS__, 'add_wp_query_group_by' ), 10, 2 );
add_filter( 'posts_clauses', array( __CLASS__, 'add_wp_query_orderby' ), 10, 2 );
$query_args = $this->prepare_reports_query( $request );
$query_results = $this->get_products( $query_args );
remove_filter( 'posts_where', array( __CLASS__, 'add_wp_query_filter' ), 10 );
remove_filter( 'posts_join', array( __CLASS__, 'add_wp_query_join' ), 10 );
remove_filter( 'posts_groupby', array( __CLASS__, 'add_wp_query_group_by' ), 10 );
remove_filter( 'posts_clauses', array( __CLASS__, 'add_wp_query_orderby' ), 10 );
$objects = array();
foreach ( $query_results['objects'] as $object ) {
$data = $this->prepare_item_for_response( $object, $request );
$objects[] = $this->prepare_response_for_collection( $data );
}
return $this->add_pagination_headers(
$request,
$objects,
(int) $query_results['total'],
(int) $query_args['paged'],
(int) $query_results['pages']
);
}
/**
* Add in conditional search filters for products.
*
* @internal
* @param string $where Where clause used to search posts.
* @param object $wp_query WP_Query object.
* @return string
*/
public static function add_wp_query_filter( $where, $wp_query ) {
global $wpdb;
$stock_status = $wp_query->get( 'stock_status' );
if ( $stock_status ) {
$where .= $wpdb->prepare(
' AND wc_product_meta_lookup.stock_status = %s ',
$stock_status
);
}
if ( $wp_query->get( 'low_in_stock' ) ) {
// We want products with stock < low stock amount, but greater than no stock amount.
$no_stock_amount = absint( max( get_option( 'woocommerce_notify_no_stock_amount' ), 0 ) );
$low_stock_amount = absint( max( get_option( 'woocommerce_notify_low_stock_amount' ), 1 ) );
$where .= "
AND wc_product_meta_lookup.stock_quantity IS NOT NULL
AND wc_product_meta_lookup.stock_status = 'instock'
AND (
(
low_stock_amount_meta.meta_value > ''
AND wc_product_meta_lookup.stock_quantity <= CAST(low_stock_amount_meta.meta_value AS SIGNED)
AND wc_product_meta_lookup.stock_quantity > {$no_stock_amount}
)
OR (
(
low_stock_amount_meta.meta_value IS NULL OR low_stock_amount_meta.meta_value <= ''
)
AND wc_product_meta_lookup.stock_quantity <= {$low_stock_amount}
AND wc_product_meta_lookup.stock_quantity > {$no_stock_amount}
)
)";
}
return $where;
}
/**
* Join posts meta tables when product search or low stock query is present.
*
* @internal
* @param string $join Join clause used to search posts.
* @param object $wp_query WP_Query object.
* @return string
*/
public static function add_wp_query_join( $join, $wp_query ) {
global $wpdb;
$stock_status = $wp_query->get( 'stock_status' );
if ( $stock_status ) {
$join = self::append_product_sorting_table_join( $join );
}
if ( $wp_query->get( 'low_in_stock' ) ) {
$join = self::append_product_sorting_table_join( $join );
$join .= " LEFT JOIN {$wpdb->postmeta} AS low_stock_amount_meta ON {$wpdb->posts}.ID = low_stock_amount_meta.post_id AND low_stock_amount_meta.meta_key = '_low_stock_amount' ";
}
return $join;
}
/**
* Join wc_product_meta_lookup to posts if not already joined.
*
* @internal
* @param string $sql SQL join.
* @return string
*/
protected static 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;
}
/**
* Group by post ID to prevent duplicates.
*
* @internal
* @param string $groupby Group by clause used to organize posts.
* @param object $wp_query WP_Query object.
* @return string
*/
public static function add_wp_query_group_by( $groupby, $wp_query ) {
global $wpdb;
if ( empty( $groupby ) ) {
$groupby = $wpdb->posts . '.ID';
}
return $groupby;
}
/**
* Custom orderby clauses using the lookup tables.
*
* @internal
* @param array $args Query args.
* @param object $wp_query WP_Query object.
* @return array
*/
public static function add_wp_query_orderby( $args, $wp_query ) {
global $wpdb;
$orderby = $wp_query->get( 'orderby' );
$order = esc_sql( $wp_query->get( 'order' ) ? $wp_query->get( 'order' ) : 'desc' );
switch ( $orderby ) {
case 'stock_quantity':
$args['join'] = self::append_product_sorting_table_join( $args['join'] );
$args['orderby'] = " wc_product_meta_lookup.stock_quantity {$order}, wc_product_meta_lookup.product_id {$order} ";
break;
case 'stock_status':
$args['join'] = self::append_product_sorting_table_join( $args['join'] );
$args['orderby'] = " wc_product_meta_lookup.stock_status {$order}, wc_product_meta_lookup.stock_quantity {$order} ";
break;
case 'sku':
$args['join'] = self::append_product_sorting_table_join( $args['join'] );
$args['orderby'] = " wc_product_meta_lookup.sku {$order}, wc_product_meta_lookup.product_id {$order} ";
break;
}
return $args;
}
/**
* Prepare a report data item for serialization.
*
* @param WC_Product $product Report data item as returned from Data Store.
* @param WP_REST_Request $request Request object.
* @return WP_REST_Response
*/
public function prepare_item_for_response( $product, $request ) {
$data = array(
'id' => $product->get_id(),
'parent_id' => $product->get_parent_id(),
'name' => wp_strip_all_tags( $product->get_name() ),
'sku' => $product->get_sku(),
'stock_status' => $product->get_stock_status(),
'stock_quantity' => (float) $product->get_stock_quantity(),
'manage_stock' => $product->get_manage_stock(),
'low_stock_amount' => $product->get_low_stock_amount(),
);
if ( '' === $data['low_stock_amount'] ) {
$data['low_stock_amount'] = absint( max( get_option( 'woocommerce_notify_low_stock_amount' ), 1 ) );
}
$response = parent::prepare_item_for_response( $data, $request );
$response->add_links( $this->prepare_links( $product ) );
/**
* Filter a report returned from the API.
*
* Allows modification of the report data right before it is returned.
*
* @param WP_REST_Response $response The response object.
* @param WC_Product $product The original product object.
* @param WP_REST_Request $request Request used to generate the response.
*/
return apply_filters( 'woocommerce_rest_prepare_report_stock', $response, $product, $request );
}
/**
* Prepare links for the request.
*
* @param WC_Product $product Object data.
* @return array
*/
protected function prepare_links( $product ) {
if ( $product->is_type( 'variation' ) ) {
$links = array(
'product' => array(
'href' => rest_url( sprintf( '/%s/products/%d/variations/%d', $this->namespace, $product->get_parent_id(), $product->get_id() ) ),
),
'parent' => array(
'href' => rest_url( sprintf( '/%s/products/%d', $this->namespace, $product->get_parent_id() ) ),
),
);
} elseif ( $product->get_parent_id() ) {
$links = array(
'product' => array(
'href' => rest_url( sprintf( '/%s/products/%d', $this->namespace, $product->get_id() ) ),
),
'parent' => array(
'href' => rest_url( sprintf( '/%s/products/%d', $this->namespace, $product->get_parent_id() ) ),
),
);
} else {
$links = array(
'product' => array(
'href' => rest_url( sprintf( '/%s/products/%d', $this->namespace, $product->get_id() ) ),
),
);
}
return $links;
}
/**
* Get the Report's schema, conforming to JSON Schema.
*
* @return array
*/
public function get_item_schema() {
$schema = array(
'$schema' => 'http://json-schema.org/draft-04/schema#',
'title' => 'report_stock',
'type' => 'object',
'properties' => array(
'id' => array(
'description' => __( 'Unique identifier for the resource.', 'woocommerce' ),
'type' => 'integer',
'context' => array( 'view', 'edit' ),
'readonly' => true,
),
'parent_id' => array(
'description' => __( 'Product parent ID.', 'woocommerce' ),
'type' => 'integer',
'context' => array( 'view', 'edit' ),
'readonly' => true,
),
'name' => array(
'description' => __( 'Product name.', 'woocommerce' ),
'type' => 'string',
'context' => array( 'view', 'edit' ),
'readonly' => true,
),
'sku' => array(
'description' => __( 'Unique identifier.', 'woocommerce' ),
'type' => 'string',
'context' => array( 'view', 'edit' ),
'readonly' => true,
),
'stock_status' => array(
'description' => __( 'Stock status.', 'woocommerce' ),
'type' => 'string',
'enum' => array_keys( wc_get_product_stock_status_options() ),
'context' => array( 'view', 'edit' ),
'readonly' => true,
),
'stock_quantity' => array(
'description' => __( 'Stock quantity.', 'woocommerce' ),
'type' => 'integer',
'context' => array( 'view', 'edit' ),
'readonly' => true,
),
'manage_stock' => array(
'description' => __( 'Manage stock.', 'woocommerce' ),
'type' => 'boolean',
'context' => array( 'view', 'edit' ),
'readonly' => true,
),
),
);
return $this->add_additional_fields_schema( $schema );
}
/**
* Get the query params for collections.
*
* @return array
*/
public function get_collection_params() {
$params = parent::get_collection_params();
unset( $params['after'], $params['before'], $params['force_cache_refresh'] );
$params['exclude'] = array(
'description' => __( 'Ensure result set excludes specific IDs.', 'woocommerce' ),
'type' => 'array',
'items' => array(
'type' => 'integer',
),
'default' => array(),
'sanitize_callback' => 'wp_parse_id_list',
);
$params['include'] = array(
'description' => __( 'Limit result set to specific ids.', 'woocommerce' ),
'type' => 'array',
'items' => array(
'type' => 'integer',
),
'default' => array(),
'sanitize_callback' => 'wp_parse_id_list',
);
$params['offset'] = array(
'description' => __( 'Offset the result set by a specific number of items.', 'woocommerce' ),
'type' => 'integer',
'sanitize_callback' => 'absint',
'validate_callback' => 'rest_validate_request_arg',
);
$params['order']['default'] = 'asc';
$params['orderby']['default'] = 'stock_status';
$params['orderby']['enum'] = $this->apply_custom_orderby_filters(
array(
'stock_status',
'stock_quantity',
'date',
'id',
'include',
'title',
'sku',
)
);
$params['parent'] = array(
'description' => __( 'Limit result set to those of particular parent IDs.', 'woocommerce' ),
'type' => 'array',
'items' => array(
'type' => 'integer',
),
'sanitize_callback' => 'wp_parse_id_list',
'default' => array(),
);
$params['parent_exclude'] = array(
'description' => __( 'Limit result set to all items except those of a particular parent ID.', 'woocommerce' ),
'type' => 'array',
'items' => array(
'type' => 'integer',
),
'sanitize_callback' => 'wp_parse_id_list',
'default' => array(),
);
$params['type'] = array(
'description' => __( 'Limit result set to items assigned a stock report type.', 'woocommerce' ),
'type' => 'string',
'default' => 'all',
'enum' => array_merge( array( 'all', 'lowstock' ), array_keys( wc_get_product_stock_status_options() ) ),
);
return $params;
}
/**
* Get the column names for export.
*
* @return array Key value pair of Column ID => Label.
*/
public function get_export_columns() {
$export_columns = array(
'title' => __( 'Product / Variation', 'woocommerce' ),
'sku' => __( 'SKU', 'woocommerce' ),
'stock_status' => __( 'Status', 'woocommerce' ),
'stock_quantity' => __( 'Stock', 'woocommerce' ),
);
/**
* Filter to add or remove column names from the stock report for
* export.
*
* @since 1.6.0
*/
return apply_filters(
'woocommerce_report_stock_export_columns',
$export_columns
);
}
/**
* Get the column values for export.
*
* @param array $item Single report item/row.
* @return array Key value pair of Column ID => Row Value.
*/
public function prepare_item_for_export( $item ) {
$status = $item['stock_status'];
if ( array_key_exists( $item['stock_status'], $this->status_options ) ) {
$status = $this->status_options[ $item['stock_status'] ];
}
$export_item = array(
'title' => $item['name'],
'sku' => $item['sku'],
'stock_status' => $status,
'stock_quantity' => $item['stock_quantity'],
);
/**
* Filter to prepare extra columns in the export item for the stock
* report.
*
* @since 1.6.0
*/
return apply_filters(
'woocommerce_report_stock_prepare_export_item',
$export_item,
$item
);
}
}
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