DataStore.php
<?php
/**
* API\Reports\Categories\DataStore class file.
*/
namespace Automattic\WooCommerce\Admin\API\Reports\Categories;
defined( 'ABSPATH' ) || exit;
use Automattic\WooCommerce\Admin\API\Reports\DataStore as ReportsDataStore;
use Automattic\WooCommerce\Admin\API\Reports\DataStoreInterface;
use Automattic\WooCommerce\Admin\API\Reports\TimeInterval;
use Automattic\WooCommerce\Admin\API\Reports\SqlQuery;
/**
* API\Reports\Categories\DataStore.
*/
class DataStore extends ReportsDataStore implements DataStoreInterface {
/**
* Table used to get the data.
*
* @var string
*/
protected static $table_name = 'wc_order_product_lookup';
/**
* Cache identifier.
*
* @var string
*/
protected $cache_key = 'categories';
/**
* Order by setting used for sorting categories data.
*
* @var string
*/
private $order_by = '';
/**
* Order setting used for sorting categories data.
*
* @var string
*/
private $order = '';
/**
* Mapping columns to data type to return correct response types.
*
* @var array
*/
protected $column_types = array(
'category_id' => 'intval',
'items_sold' => 'intval',
'net_revenue' => 'floatval',
'orders_count' => 'intval',
'products_count' => 'intval',
);
/**
* Data store context used to pass to filters.
*
* @var string
*/
protected $context = 'categories';
/**
* Assign report columns once full table name has been assigned.
*/
protected function assign_report_columns() {
$table_name = self::get_db_table_name();
$this->report_columns = array(
'items_sold' => 'SUM(product_qty) as items_sold',
'net_revenue' => 'SUM(product_net_revenue) AS net_revenue',
'orders_count' => "COUNT(DISTINCT {$table_name}.order_id) as orders_count",
'products_count' => "COUNT(DISTINCT {$table_name}.product_id) as products_count",
);
}
/**
* Return the database query with parameters used for Categories report: time span and order status.
*
* @param array $query_args Query arguments supplied by the user.
*/
protected function add_sql_query_params( $query_args ) {
global $wpdb;
$order_product_lookup_table = self::get_db_table_name();
$this->add_time_period_sql_params( $query_args, $order_product_lookup_table );
// join wp_order_product_lookup_table with relationships and taxonomies
// @todo How to handle custom product tables?
$this->subquery->add_sql_clause( 'left_join', "LEFT JOIN {$wpdb->term_relationships} ON {$order_product_lookup_table}.product_id = {$wpdb->term_relationships}.object_id" );
// Adding this (inner) JOIN as a LEFT JOIN for ordering purposes. See comment in add_order_by_params().
$this->subquery->add_sql_clause( 'left_join', "JOIN {$wpdb->term_taxonomy} ON {$wpdb->term_taxonomy}.term_taxonomy_id = {$wpdb->term_relationships}.term_taxonomy_id" );
$included_categories = $this->get_included_categories( $query_args );
if ( $included_categories ) {
$this->subquery->add_sql_clause( 'where', "AND {$wpdb->term_relationships}.term_taxonomy_id IN ({$included_categories})" );
// Limit is left out here so that the grouping in code by PHP can be applied correctly.
// This also needs to be put after the term_taxonomy JOIN so that we can match the correct term name.
$this->add_order_by_params( $query_args, 'outer', 'default_results.category_id' );
} else {
$this->add_order_by_params( $query_args, 'inner', "{$wpdb->term_relationships}.term_taxonomy_id" );
}
$this->add_order_status_clause( $query_args, $order_product_lookup_table, $this->subquery );
$this->subquery->add_sql_clause( 'where', "AND {$wpdb->term_taxonomy}.taxonomy = 'product_cat'" );
}
/**
* Fills ORDER BY clause of SQL request based on user supplied parameters.
*
* @param array $query_args Parameters supplied by the user.
* @param string $from_arg Target of the JOIN sql param.
* @param string $id_cell ID cell identifier, like `table_name.id_column_name`.
*/
protected function add_order_by_params( $query_args, $from_arg, $id_cell ) {
global $wpdb;
// Sanitize input: guarantee that the id cell in the join is quoted with backticks.
$id_cell_segments = explode( '.', str_replace( '`', '', $id_cell ) );
$id_cell_identifier = '`' . implode( '`.`', $id_cell_segments ) . '`';
$lookup_table = self::get_db_table_name();
$order_by_clause = $this->add_order_by_clause( $query_args, $this );
$this->add_orderby_order_clause( $query_args, $this );
if ( false !== strpos( $order_by_clause, '_terms' ) ) {
$join = "JOIN {$wpdb->terms} AS _terms ON {$id_cell_identifier} = _terms.term_id";
if ( 'inner' === $from_arg ) {
// Even though this is an (inner) JOIN, we're adding it as a `left_join` to
// affect its order in the query statement. The SqlQuery::$sql_filters variable
// determines the order in which joins are concatenated.
// See: https://github.com/woocommerce/woocommerce-admin/blob/1f261998e7287b77bc13c3d4ee2e84b717da7957/src/API/Reports/SqlQuery.php#L46-L50.
$this->subquery->add_sql_clause( 'left_join', $join );
} else {
$this->add_sql_clause( 'join', $join );
}
}
}
/**
* Maps ordering specified by the user to columns in the database/fields in the data.
*
* @param string $order_by Sorting criterion.
* @return string
*/
protected function normalize_order_by( $order_by ) {
if ( 'date' === $order_by ) {
return 'time_interval';
}
if ( 'category' === $order_by ) {
return '_terms.name';
}
return $order_by;
}
/**
* Returns an array of ids of included categories, based on query arguments from the user.
*
* @param array $query_args Parameters supplied by the user.
* @return array
*/
protected function get_included_categories_array( $query_args ) {
if ( isset( $query_args['category_includes'] ) && is_array( $query_args['category_includes'] ) && count( $query_args['category_includes'] ) > 0 ) {
return $query_args['category_includes'];
}
return array();
}
/**
* Returns the page of data according to page number and items per page.
*
* @param array $data Data to paginate.
* @param integer $page_no Page number.
* @param integer $items_per_page Number of items per page.
* @return array
*/
protected function page_records( $data, $page_no, $items_per_page ) {
$offset = ( $page_no - 1 ) * $items_per_page;
return array_slice( $data, $offset, $items_per_page );
}
/**
* Enriches the category data.
*
* @param array $categories_data Categories data.
* @param array $query_args Query parameters.
*/
protected function include_extended_info( &$categories_data, $query_args ) {
foreach ( $categories_data as $key => $category_data ) {
$extended_info = new \ArrayObject();
if ( $query_args['extended_info'] ) {
$extended_info['name'] = get_the_category_by_ID( $category_data['category_id'] );
}
$categories_data[ $key ]['extended_info'] = $extended_info;
}
}
/**
* Returns the report data based on parameters supplied by the user.
*
* @param array $query_args Query parameters.
* @return stdClass|WP_Error Data.
*/
public function get_data( $query_args ) {
global $wpdb;
$table_name = self::get_db_table_name();
// These defaults are only partially applied when used via REST API, as that has its own defaults.
$defaults = array(
'per_page' => get_option( 'posts_per_page' ),
'page' => 1,
'order' => 'DESC',
'orderby' => 'date',
'before' => TimeInterval::default_before(),
'after' => TimeInterval::default_after(),
'fields' => '*',
'category_includes' => array(),
'extended_info' => false,
);
$query_args = wp_parse_args( $query_args, $defaults );
$this->normalize_timezones( $query_args, $defaults );
/*
* We need to get the cache key here because
* parent::update_intervals_sql_params() modifies $query_args.
*/
$cache_key = $this->get_cache_key( $query_args );
$data = $this->get_cached_data( $cache_key );
if ( false === $data ) {
$this->initialize_queries();
$data = (object) array(
'data' => array(),
'total' => 0,
'pages' => 0,
'page_no' => 0,
);
$this->subquery->add_sql_clause( 'select', $this->selected_columns( $query_args ) );
$included_categories = $this->get_included_categories_array( $query_args );
$this->add_sql_query_params( $query_args );
if ( count( $included_categories ) > 0 ) {
$fields = $this->get_fields( $query_args );
$ids_table = $this->get_ids_table( $included_categories, 'category_id' );
$this->add_sql_clause( 'select', $this->format_join_selections( array_merge( array( 'category_id' ), $fields ), array( 'category_id' ) ) );
$this->add_sql_clause( 'from', '(' );
$this->add_sql_clause( 'from', $this->subquery->get_query_statement() );
$this->add_sql_clause( 'from', ") AS {$table_name}" );
$this->add_sql_clause(
'right_join',
"RIGHT JOIN ( {$ids_table} ) AS default_results
ON default_results.category_id = {$table_name}.category_id"
);
$categories_query = $this->get_query_statement();
} else {
$this->subquery->add_sql_clause( 'order_by', $this->get_sql_clause( 'order_by' ) );
$categories_query = $this->subquery->get_query_statement();
}
$categories_data = $wpdb->get_results(
$categories_query, // phpcs:ignore WordPress.DB.PreparedSQL.NotPrepared
ARRAY_A
);
if ( null === $categories_data ) {
return new \WP_Error( 'woocommerce_analytics_categories_result_failed', __( 'Sorry, fetching revenue data failed.', 'woocommerce' ), array( 'status' => 500 ) );
}
$record_count = count( $categories_data );
$total_pages = (int) ceil( $record_count / $query_args['per_page'] );
if ( $query_args['page'] < 1 || $query_args['page'] > $total_pages ) {
return $data;
}
$categories_data = $this->page_records( $categories_data, $query_args['page'], $query_args['per_page'] );
$this->include_extended_info( $categories_data, $query_args );
$categories_data = array_map( array( $this, 'cast_numbers' ), $categories_data );
$data = (object) array(
'data' => $categories_data,
'total' => $record_count,
'pages' => $total_pages,
'page_no' => (int) $query_args['page'],
);
$this->set_cached_data( $cache_key, $data );
}
return $data;
}
/**
* Initialize query objects.
*/
protected function initialize_queries() {
global $wpdb;
$this->subquery = new SqlQuery( $this->context . '_subquery' );
$this->subquery->add_sql_clause( 'select', "{$wpdb->term_taxonomy}.term_id as category_id," );
$this->subquery->add_sql_clause( 'from', self::get_db_table_name() );
$this->subquery->add_sql_clause( 'group_by', "{$wpdb->term_taxonomy}.term_id" );
}
}
