Segmenter.php
<?php
/**
* Class for adding segmenting support to coupons/stats without cluttering the data store.
*/
namespace Automattic\WooCommerce\Admin\API\Reports\Coupons\Stats;
defined( 'ABSPATH' ) || exit;
use Automattic\WooCommerce\Admin\API\Reports\Segmenter as ReportsSegmenter;
use Automattic\WooCommerce\Admin\API\Reports\ParameterException;
/**
* Date & time interval and numeric range handling class for Reporting API.
*/
class Segmenter extends ReportsSegmenter {
/**
* Returns column => query mapping to be used for product-related product-level segmenting query
* (e.g. coupon discount amount for product X when segmenting by product id or category).
*
* @param string $products_table Name of SQL table containing the product-level segmenting info.
*
* @return array Column => SELECT query mapping.
*/
protected function get_segment_selections_product_level( $products_table ) {
$columns_mapping = array(
'amount' => "SUM($products_table.coupon_amount) as amount",
);
return $columns_mapping;
}
/**
* Returns column => query mapping to be used for order-related product-level segmenting query
* (e.g. orders_count when segmented by category).
*
* @param string $coupons_lookup_table Name of SQL table containing the order-level segmenting info.
*
* @return array Column => SELECT query mapping.
*/
protected function get_segment_selections_order_level( $coupons_lookup_table ) {
$columns_mapping = array(
'coupons_count' => "COUNT(DISTINCT $coupons_lookup_table.coupon_id) as coupons_count",
'orders_count' => "COUNT(DISTINCT $coupons_lookup_table.order_id) as orders_count",
);
return $columns_mapping;
}
/**
* Returns column => query mapping to be used for order-level segmenting query
* (e.g. discount amount when segmented by coupons).
*
* @param string $coupons_lookup_table Name of SQL table containing the order-level info.
* @param array $overrides Array of overrides for default column calculations.
*
* @return array Column => SELECT query mapping.
*/
protected function segment_selections_orders( $coupons_lookup_table, $overrides = array() ) {
$columns_mapping = array(
'amount' => "SUM($coupons_lookup_table.discount_amount) as amount",
'coupons_count' => "COUNT(DISTINCT $coupons_lookup_table.coupon_id) as coupons_count",
'orders_count' => "COUNT(DISTINCT $coupons_lookup_table.order_id) as orders_count",
);
if ( $overrides ) {
$columns_mapping = array_merge( $columns_mapping, $overrides );
}
return $columns_mapping;
}
/**
* Calculate segments for totals where the segmenting property is bound to product (e.g. category, product_id, variation_id).
*
* @param array $segmenting_selections SELECT part of segmenting SQL query--one for 'product_level' and one for 'order_level'.
* @param string $segmenting_from FROM part of segmenting SQL query.
* @param string $segmenting_where WHERE part of segmenting SQL query.
* @param string $segmenting_groupby GROUP BY part of segmenting SQL query.
* @param string $segmenting_dimension_name Name of the segmenting dimension.
* @param string $table_name Name of SQL table which is the stats table for orders.
* @param array $totals_query Array of SQL clauses for totals query.
* @param string $unique_orders_table Name of temporary SQL table that holds unique orders.
*
* @return array
*/
protected function get_product_related_totals_segments( $segmenting_selections, $segmenting_from, $segmenting_where, $segmenting_groupby, $segmenting_dimension_name, $table_name, $totals_query, $unique_orders_table ) {
global $wpdb;
// Product-level numbers and order-level numbers can be fetched by the same query.
$segments_products = $wpdb->get_results(
"SELECT
$segmenting_groupby AS $segmenting_dimension_name
{$segmenting_selections['product_level']}
{$segmenting_selections['order_level']}
FROM
$table_name
$segmenting_from
{$totals_query['from_clause']}
WHERE
1=1
{$totals_query['where_time_clause']}
{$totals_query['where_clause']}
$segmenting_where
GROUP BY
$segmenting_groupby",
ARRAY_A
); // WPCS: cache ok, DB call ok, unprepared SQL ok.
$totals_segments = $this->merge_segment_totals_results( $segmenting_dimension_name, $segments_products, array() );
return $totals_segments;
}
/**
* Calculate segments for intervals where the segmenting property is bound to product (e.g. category, product_id, variation_id).
*
* @param array $segmenting_selections SELECT part of segmenting SQL query--one for 'product_level' and one for 'order_level'.
* @param string $segmenting_from FROM part of segmenting SQL query.
* @param string $segmenting_where WHERE part of segmenting SQL query.
* @param string $segmenting_groupby GROUP BY part of segmenting SQL query.
* @param string $segmenting_dimension_name Name of the segmenting dimension.
* @param string $table_name Name of SQL table which is the stats table for orders.
* @param array $intervals_query Array of SQL clauses for intervals query.
* @param string $unique_orders_table Name of temporary SQL table that holds unique orders.
*
* @return array
*/
protected function get_product_related_intervals_segments( $segmenting_selections, $segmenting_from, $segmenting_where, $segmenting_groupby, $segmenting_dimension_name, $table_name, $intervals_query, $unique_orders_table ) {
global $wpdb;
// LIMIT offset, rowcount needs to be updated to LIMIT offset, rowcount * max number of segments.
$limit_parts = explode( ',', $intervals_query['limit'] );
$orig_rowcount = intval( $limit_parts[1] );
$segmenting_limit = $limit_parts[0] . ',' . $orig_rowcount * count( $this->get_all_segments() );
// Product-level numbers and order-level numbers can be fetched by the same query.
$segments_products = $wpdb->get_results(
"SELECT
{$intervals_query['select_clause']} AS time_interval,
$segmenting_groupby AS $segmenting_dimension_name
{$segmenting_selections['product_level']}
{$segmenting_selections['order_level']}
FROM
$table_name
$segmenting_from
{$intervals_query['from_clause']}
WHERE
1=1
{$intervals_query['where_time_clause']}
{$intervals_query['where_clause']}
$segmenting_where
GROUP BY
time_interval, $segmenting_groupby
$segmenting_limit",
ARRAY_A
); // WPCS: cache ok, DB call ok, unprepared SQL ok.
$intervals_segments = $this->merge_segment_intervals_results( $segmenting_dimension_name, $segments_products, array() );
return $intervals_segments;
}
/**
* Calculate segments for totals query where the segmenting property is bound to order (e.g. coupon or customer type).
*
* @param string $segmenting_select SELECT part of segmenting SQL query.
* @param string $segmenting_from FROM part of segmenting SQL query.
* @param string $segmenting_where WHERE part of segmenting SQL query.
* @param string $segmenting_groupby GROUP BY part of segmenting SQL query.
* @param string $table_name Name of SQL table which is the stats table for orders.
* @param array $totals_query Array of SQL clauses for intervals query.
*
* @return array
*/
protected function get_order_related_totals_segments( $segmenting_select, $segmenting_from, $segmenting_where, $segmenting_groupby, $table_name, $totals_query ) {
global $wpdb;
$totals_segments = $wpdb->get_results(
"SELECT
$segmenting_groupby
$segmenting_select
FROM
$table_name
$segmenting_from
{$totals_query['from_clause']}
WHERE
1=1
{$totals_query['where_time_clause']}
{$totals_query['where_clause']}
$segmenting_where
GROUP BY
$segmenting_groupby",
ARRAY_A
); // WPCS: cache ok, DB call ok, unprepared SQL ok.
// Reformat result.
$totals_segments = $this->reformat_totals_segments( $totals_segments, $segmenting_groupby );
return $totals_segments;
}
/**
* Calculate segments for intervals query where the segmenting property is bound to order (e.g. coupon or customer type).
*
* @param string $segmenting_select SELECT part of segmenting SQL query.
* @param string $segmenting_from FROM part of segmenting SQL query.
* @param string $segmenting_where WHERE part of segmenting SQL query.
* @param string $segmenting_groupby GROUP BY part of segmenting SQL query.
* @param string $table_name Name of SQL table which is the stats table for orders.
* @param array $intervals_query Array of SQL clauses for intervals query.
*
* @return array
*/
protected function get_order_related_intervals_segments( $segmenting_select, $segmenting_from, $segmenting_where, $segmenting_groupby, $table_name, $intervals_query ) {
global $wpdb;
$limit_parts = explode( ',', $intervals_query['limit'] );
$orig_rowcount = intval( $limit_parts[1] );
$segmenting_limit = $limit_parts[0] . ',' . $orig_rowcount * count( $this->get_all_segments() );
$intervals_segments = $wpdb->get_results(
"SELECT
MAX($table_name.date_created) AS datetime_anchor,
{$intervals_query['select_clause']} AS time_interval,
$segmenting_groupby
$segmenting_select
FROM
$table_name
$segmenting_from
{$intervals_query['from_clause']}
WHERE
1=1
{$intervals_query['where_time_clause']}
{$intervals_query['where_clause']}
$segmenting_where
GROUP BY
time_interval, $segmenting_groupby
$segmenting_limit",
ARRAY_A
); // WPCS: cache ok, DB call ok, unprepared SQL ok.
// Reformat result.
$intervals_segments = $this->reformat_intervals_segments( $intervals_segments, $segmenting_groupby );
return $intervals_segments;
}
/**
* Return array of segments formatted for REST response.
*
* @param string $type Type of segments to return--'totals' or 'intervals'.
* @param array $query_params SQL query parameter array.
* @param string $table_name Name of main SQL table for the data store (used as basis for JOINS).
*
* @return array
* @throws \Automattic\WooCommerce\Admin\API\Reports\ParameterException In case of segmenting by variations, when no parent product is specified.
*/
protected function get_segments( $type, $query_params, $table_name ) {
global $wpdb;
if ( ! isset( $this->query_args['segmentby'] ) || '' === $this->query_args['segmentby'] ) {
return array();
}
$segments = null;
$product_segmenting_table = $wpdb->prefix . 'wc_order_product_lookup';
$unique_orders_table = '';
$segmenting_where = '';
// Product, variation, and category are bound to product, so here product segmenting table is required,
// while coupon and customer are bound to order, so we don't need the extra JOIN for those.
// This also means that segment selections need to be calculated differently.
if ( 'product' === $this->query_args['segmentby'] ) {
$product_level_columns = $this->get_segment_selections_product_level( $product_segmenting_table );
$order_level_columns = $this->get_segment_selections_order_level( $table_name );
$segmenting_selections = array(
'product_level' => $this->prepare_selections( $product_level_columns ),
'order_level' => $this->prepare_selections( $order_level_columns ),
);
$this->report_columns = array_merge( $product_level_columns, $order_level_columns );
$segmenting_from = "INNER JOIN $product_segmenting_table ON ($table_name.order_id = $product_segmenting_table.order_id)";
$segmenting_groupby = $product_segmenting_table . '.product_id';
$segmenting_dimension_name = 'product_id';
$segments = $this->get_product_related_segments( $type, $segmenting_selections, $segmenting_from, $segmenting_where, $segmenting_groupby, $segmenting_dimension_name, $table_name, $query_params, $unique_orders_table );
} elseif ( 'variation' === $this->query_args['segmentby'] ) {
if ( ! isset( $this->query_args['product_includes'] ) || ! is_array( $this->query_args['product_includes'] ) || count( $this->query_args['product_includes'] ) !== 1 ) {
throw new ParameterException( 'wc_admin_reports_invalid_segmenting_variation', __( 'product_includes parameter need to specify exactly one product when segmenting by variation.', 'woocommerce' ) );
}
$product_level_columns = $this->get_segment_selections_product_level( $product_segmenting_table );
$order_level_columns = $this->get_segment_selections_order_level( $table_name );
$segmenting_selections = array(
'product_level' => $this->prepare_selections( $product_level_columns ),
'order_level' => $this->prepare_selections( $order_level_columns ),
);
$this->report_columns = array_merge( $product_level_columns, $order_level_columns );
$segmenting_from = "INNER JOIN $product_segmenting_table ON ($table_name.order_id = $product_segmenting_table.order_id)";
$segmenting_where = "AND $product_segmenting_table.product_id = {$this->query_args['product_includes'][0]}";
$segmenting_groupby = $product_segmenting_table . '.variation_id';
$segmenting_dimension_name = 'variation_id';
$segments = $this->get_product_related_segments( $type, $segmenting_selections, $segmenting_from, $segmenting_where, $segmenting_groupby, $segmenting_dimension_name, $table_name, $query_params, $unique_orders_table );
} elseif ( 'category' === $this->query_args['segmentby'] ) {
$product_level_columns = $this->get_segment_selections_product_level( $product_segmenting_table );
$order_level_columns = $this->get_segment_selections_order_level( $table_name );
$segmenting_selections = array(
'product_level' => $this->prepare_selections( $product_level_columns ),
'order_level' => $this->prepare_selections( $order_level_columns ),
);
$this->report_columns = array_merge( $product_level_columns, $order_level_columns );
$segmenting_from = "
INNER JOIN $product_segmenting_table ON ($table_name.order_id = $product_segmenting_table.order_id)
LEFT JOIN {$wpdb->term_relationships} ON {$product_segmenting_table}.product_id = {$wpdb->term_relationships}.object_id
JOIN {$wpdb->term_taxonomy} ON {$wpdb->term_taxonomy}.term_taxonomy_id = {$wpdb->term_relationships}.term_taxonomy_id
LEFT JOIN {$wpdb->wc_category_lookup} ON {$wpdb->term_taxonomy}.term_id = {$wpdb->wc_category_lookup}.category_id
";
$segmenting_where = " AND {$wpdb->wc_category_lookup}.category_tree_id IS NOT NULL";
$segmenting_groupby = "{$wpdb->wc_category_lookup}.category_tree_id";
$segmenting_dimension_name = 'category_id';
$segments = $this->get_product_related_segments( $type, $segmenting_selections, $segmenting_from, $segmenting_where, $segmenting_groupby, $segmenting_dimension_name, $table_name, $query_params, $unique_orders_table );
} elseif ( 'coupon' === $this->query_args['segmentby'] ) {
$coupon_level_columns = $this->segment_selections_orders( $table_name );
$segmenting_selections = $this->prepare_selections( $coupon_level_columns );
$this->report_columns = $coupon_level_columns;
$segmenting_from = '';
$segmenting_groupby = "$table_name.coupon_id";
$segments = $this->get_order_related_segments( $type, $segmenting_selections, $segmenting_from, $segmenting_where, $segmenting_groupby, $table_name, $query_params );
}
return $segments;
}
}
