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ðŸ“ ..
ðŸ“„ Cache.php(1.48 KB)
ðŸ“ Categories
ðŸ“„ Controller.php(6.63 KB)
ðŸ“ Coupons
ðŸ“ Customers
ðŸ“„ DataStore.php(54.66 KB)
ðŸ“„ DataStoreInterface.php(401 B)
ðŸ“ Downloads
ðŸ“ Export
ðŸ“„ ExportableInterface.php(624 B)
ðŸ“„ ExportableTraits.php(624 B)
ðŸ“„ FilteredGetDataTrait.php(1.55 KB)
ðŸ“„ GenericController.php(9.88 KB)
ðŸ“„ GenericQuery.php(2.57 KB)
ðŸ“„ GenericStatsController.php(7.98 KB)
ðŸ“ Import
ðŸ“„ OrderAwareControllerTrait.php(3.58 KB)
ðŸ“ Orders
ðŸ“„ ParameterException.php(326 B)
ðŸ“ PerformanceIndicators
ðŸ“ Products
ðŸ“„ Query.php(1.41 KB)
ðŸ“ Revenue
ðŸ“„ Segmenter.php(25.42 KB)
ðŸ“„ SqlQuery.php(5.15 KB)
ðŸ“„ StatsDataStoreTrait.php(4.76 KB)
ðŸ“ Stock
ðŸ“ Taxes
ðŸ“„ TimeInterval.php(23.47 KB)
ðŸ“ Variations

Editing: Segmenter.php

<?php
/**
 * Class for adding segmenting support without cluttering the data stores.
 */

namespace Automattic\WooCommerce\Admin\API\Reports;

defined( 'ABSPATH' ) || exit;

use Automattic\WooCommerce\Admin\API\Reports\Coupons\DataStore as CouponsDataStore;
use Automattic\WooCommerce\Admin\API\Reports\Taxes\Stats\DataStore as TaxesStatsDataStore;
use Automattic\WooCommerce\Enums\ProductType;

/**
 * Date & time interval and numeric range handling class for Reporting API.
 */
class Segmenter {

/**
	 * Array of all segment ids.
	 *
	 * @var array|bool
	 */
	protected $all_segment_ids = false;

/**
	 * Array of all segment labels.
	 *
	 * @var array
	 */
	protected $segment_labels = array();

/**
	 * Query arguments supplied by the user for data store.
	 *
	 * @var array
	 */
	protected $query_args = '';

/**
	 * SQL definition for each column.
	 *
	 * @var array
	 */
	protected $report_columns = array();

/**
	 * Constructor.
	 *
	 * @param array $query_args Query arguments supplied by the user for data store.
	 * @param array $report_columns Report columns lookup from data store.
	 */
	public function __construct( $query_args, $report_columns ) {
		$this->query_args     = $query_args;
		$this->report_columns = $report_columns;
	}

/**
	 * Filters definitions for SELECT clauses based on query_args and joins them into one string usable in SELECT clause.
	 *
	 * @param array $columns_mapping Column name -> SQL statememt mapping.
	 *
	 * @return string to be used in SELECT clause statements.
	 */
	protected function prepare_selections( $columns_mapping ) {
		if ( isset( $this->query_args['fields'] ) && is_array( $this->query_args['fields'] ) ) {
			$keep = array();
			foreach ( $this->query_args['fields'] as $field ) {
				if ( isset( $columns_mapping[ $field ] ) ) {
					$keep[ $field ] = $columns_mapping[ $field ];
				}
			}
			$selections = implode( ', ', $keep );
		} else {
			$selections = implode( ', ', $columns_mapping );
		}

if ( $selections ) {
			$selections = ',' . $selections;
		}

return $selections;
	}

/**
	 * Update row-level db result for segments in 'totals' section to the format used for output.
	 *
	 * @param array  $segments_db_result Results from the SQL db query for segmenting.
	 * @param string $segment_dimension Name of column used for grouping the result.
	 *
	 * @return array Reformatted array.
	 */
	protected function reformat_totals_segments( $segments_db_result, $segment_dimension ) {
		$segment_result = array();

if ( strpos( $segment_dimension, '.' ) ) {
			$segment_dimension = substr( strstr( $segment_dimension, '.' ), 1 );
		}

$segment_labels = $this->get_segment_labels();
		foreach ( $segments_db_result as $segment_data ) {
			$segment_id = $segment_data[ $segment_dimension ];
			if ( ! isset( $segment_labels[ $segment_id ] ) ) {
				continue;
			}

unset( $segment_data[ $segment_dimension ] );
			$segment_datum                 = array(
				'segment_id'    => $segment_id,
				'segment_label' => $segment_labels[ $segment_id ],
				'subtotals'     => $segment_data,
			);
			$segment_result[ $segment_id ] = $segment_datum;
		}

return $segment_result;
	}

/**
	 * Merges segmented results for totals response part.
	 *
	 * E.g. $r1 = array(
	 *     0 => array(
	 *          'product_id' => 3,
	 *          'net_amount' => 15,
	 *     ),
	 * );
	 * $r2 = array(
	 *     0 => array(
	 *          'product_id'      => 3,
	 *          'avg_order_value' => 25,
	 *     ),
	 * );
	 *
	 * $merged = array(
	 *     3 => array(
	 *          'segment_id' => 3,
	 *          'subtotals'  => array(
	 *              'net_amount'      => 15,
	 *              'avg_order_value' => 25,
	 *          )
	 *     ),
	 * );
	 *
	 * @param string $segment_dimension Name of the segment dimension=key in the result arrays used to match records from result sets.
	 * @param array  $result1 Array 1 of segmented figures.
	 * @param array  $result2 Array 2 of segmented figures.
	 *
	 * @return array
	 */
	protected function merge_segment_totals_results( $segment_dimension, $result1, $result2 ) {
		$result_segments = array();
		$segment_labels  = $this->get_segment_labels();

foreach ( $result1 as $segment_data ) {
			$segment_id = $segment_data[ $segment_dimension ];
			if ( ! isset( $segment_labels[ $segment_id ] ) ) {
				continue;
			}

unset( $segment_data[ $segment_dimension ] );
			$result_segments[ $segment_id ] = array(
				'segment_label' => $segment_labels[ $segment_id ],
				'segment_id'    => $segment_id,
				'subtotals'     => $segment_data,
			);
		}

foreach ( $result2 as $segment_data ) {
			$segment_id = $segment_data[ $segment_dimension ];
			if ( ! isset( $segment_labels[ $segment_id ] ) ) {
				continue;
			}

unset( $segment_data[ $segment_dimension ] );
			if ( ! isset( $result_segments[ $segment_id ] ) ) {
				$result_segments[ $segment_id ] = array(
					'segment_label' => $segment_labels[ $segment_id ],
					'segment_id'    => $segment_id,
					'subtotals'     => array(),
				);
			}
			$result_segments[ $segment_id ]['subtotals'] = array_merge( $result_segments[ $segment_id ]['subtotals'], $segment_data );
		}
		return $result_segments;
	}
	/**
	 * Merges segmented results for intervals response part.
	 *
	 * E.g. $r1 = array(
	 *     0 => array(
	 *          'product_id'    => 3,
	 *          'time_interval' => '2018-12'
	 *          'net_amount'    => 15,
	 *     ),
	 * );
	 * $r2 = array(
	 *     0 => array(
	 *          'product_id'      => 3,
	 *          'time_interval' => '2018-12'
	 *          'avg_order_value' => 25,
	 *     ),
	 * );
	 *
	 * $merged = array(
	 *     '2018-12' => array(
	 *          'segments' => array(
	 *              3 => array(
	 *                  'segment_id' => 3,
	 *                  'subtotals'  => array(
	 *                      'net_amount'      => 15,
	 *                      'avg_order_value' => 25,
	 *                  ),
	 *              ),
	 *          ),
	 *     ),
	 * );
	 *
	 * @param string $segment_dimension Name of the segment dimension=key in the result arrays used to match records from result sets.
	 * @param array  $result1 Array 1 of segmented figures.
	 * @param array  $result2 Array 2 of segmented figures.
	 *
	 * @return array
	 */
	protected function merge_segment_intervals_results( $segment_dimension, $result1, $result2 ) {
		$result_segments = array();
		$segment_labels  = $this->get_segment_labels();

foreach ( $result1 as $segment_data ) {
			$segment_id = $segment_data[ $segment_dimension ];
			if ( ! isset( $segment_labels[ $segment_id ] ) ) {
				continue;
			}

$time_interval = $segment_data['time_interval'];
			if ( ! isset( $result_segments[ $time_interval ] ) ) {
				$result_segments[ $time_interval ]             = array();
				$result_segments[ $time_interval ]['segments'] = array();
			}

unset( $segment_data['time_interval'] );
			unset( $segment_data['datetime_anchor'] );
			unset( $segment_data[ $segment_dimension ] );
			$segment_datum = array(
				'segment_label' => $segment_labels[ $segment_id ],
				'segment_id'    => $segment_id,
				'subtotals'     => $segment_data,
			);
			$result_segments[ $time_interval ]['segments'][ $segment_id ] = $segment_datum;
		}

foreach ( $result2 as $segment_data ) {
			$segment_id = $segment_data[ $segment_dimension ];
			if ( ! isset( $segment_labels[ $segment_id ] ) ) {
				continue;
			}

unset( $segment_data['time_interval'] );
			unset( $segment_data['datetime_anchor'] );
			unset( $segment_data[ $segment_dimension ] );

if ( ! isset( $result_segments[ $time_interval ]['segments'][ $segment_id ] ) ) {
				$result_segments[ $time_interval ]['segments'][ $segment_id ] = array(
					'segment_label' => $segment_labels[ $segment_id ],
					'segment_id'    => $segment_id,
					'subtotals'     => array(),
				);
			}
			$result_segments[ $time_interval ]['segments'][ $segment_id ]['subtotals'] = array_merge( $result_segments[ $time_interval ]['segments'][ $segment_id ]['subtotals'], $segment_data );
		}
		return $result_segments;
	}

/**
	 * Update row-level db result for segments in 'intervals' section to the format used for output.
	 *
	 * @param array  $segments_db_result Results from the SQL db query for segmenting.
	 * @param string $segment_dimension Name of column used for grouping the result.
	 *
	 * @return array Reformatted array.
	 */
	protected function reformat_intervals_segments( $segments_db_result, $segment_dimension ) {
		$aggregated_segment_result = array();

if ( strpos( $segment_dimension, '.' ) ) {
			$segment_dimension = substr( strstr( $segment_dimension, '.' ), 1 );
		}

$segment_labels = $this->get_segment_labels();

foreach ( $segments_db_result as $segment_data ) {
			$segment_id = $segment_data[ $segment_dimension ];
			if ( ! isset( $segment_labels[ $segment_id ] ) ) {
				continue;
			}

$time_interval = $segment_data['time_interval'];
			if ( ! isset( $aggregated_segment_result[ $time_interval ] ) ) {
				$aggregated_segment_result[ $time_interval ]             = array();
				$aggregated_segment_result[ $time_interval ]['segments'] = array();
			}
			unset( $segment_data['time_interval'] );
			unset( $segment_data['datetime_anchor'] );
			unset( $segment_data[ $segment_dimension ] );
			$segment_datum = array(
				'segment_label' => $segment_labels[ $segment_id ],
				'segment_id'    => $segment_id,
				'subtotals'     => $segment_data,
			);
			$aggregated_segment_result[ $time_interval ]['segments'][ $segment_id ] = $segment_datum;
		}

return $aggregated_segment_result;
	}

/**
	 * Fetches all segment ids from db and stores it for later use.
	 *
	 * @return void
	 */
	protected function set_all_segments() {
		global $wpdb;

if ( ! isset( $this->query_args['segmentby'] ) || '' === $this->query_args['segmentby'] ) {
			$this->all_segment_ids = array();
			return;
		}

$segments       = array();
		$segment_labels = array();

if ( 'product' === $this->query_args['segmentby'] ) {
			$args = array(
				'return' => 'objects',
				'limit'  => -1,
			);

if ( isset( $this->query_args['product_includes'] ) ) {
				$args['include'] = $this->query_args['product_includes'];
			}

if ( isset( $this->query_args['category_includes'] ) ) {
				$categories       = $this->query_args['category_includes'];
				$args['category'] = array();
				foreach ( $categories as $category_id ) {
					$terms              = get_term_by( 'id', $category_id, 'product_cat' );
					$args['category'][] = $terms->slug;
				}
			}

$segment_objects = wc_get_products( $args );
			foreach ( $segment_objects as $segment ) {
				$id                    = $segment->get_id();
				$segments[]            = $id;
				$segment_labels[ $id ] = $segment->get_name();
			}
		} elseif ( 'variation' === $this->query_args['segmentby'] ) {
			$args = array(
				'return' => 'objects',
				'limit'  => -1,
				'type'   => ProductType::VARIATION,
			);

if (
				isset( $this->query_args['product_includes'] ) &&
				is_array( $this->query_args['product_includes'] ) &&
				count( $this->query_args['product_includes'] ) === 1
			) {
				$args['parent'] = $this->query_args['product_includes'][0];
			}

if ( isset( $this->query_args['variation_includes'] ) ) {
				$args['include'] = $this->query_args['variation_includes'];
			}

$segment_objects = wc_get_products( $args );

foreach ( $segment_objects as $segment ) {
				$id           = $segment->get_id();
				$segments[]   = $id;
				$product_name = $segment->get_name();
				$separator    = apply_filters( 'woocommerce_product_variation_title_attributes_separator', ' - ', $segment );
				$attributes   = wc_get_formatted_variation( $segment, true, false );

$segment_labels[ $id ] = $product_name . $separator . $attributes;
			}

// If no variations were specified, add a segment for the parent product (variation = 0).
			// This is to catch simple products with prior sales converted into variable products.
			// See: https://github.com/woocommerce/woocommerce-admin/issues/2719.
			if ( isset( $args['parent'] ) && empty( $args['include'] ) ) {
				$parent_object     = wc_get_product( $args['parent'] );
				$segments[]        = 0;
				$segment_labels[0] = $parent_object->get_name();
			}
		} elseif ( 'category' === $this->query_args['segmentby'] ) {
			$args = array(
				'taxonomy' => 'product_cat',
			);

if ( isset( $this->query_args['category_includes'] ) ) {
				$args['include'] = $this->query_args['category_includes'];
			}

// @todo: Look into `wc_get_products` or data store methods and not directly touching the database or post types.
			$categories = get_categories( $args );

$segments       = wp_list_pluck( $categories, 'cat_ID' );
			$segment_labels = wp_list_pluck( $categories, 'name', 'cat_ID' );

} elseif ( 'coupon' === $this->query_args['segmentby'] ) {
			$args = array();
			if ( isset( $this->query_args['coupons'] ) ) {
				$args['include'] = $this->query_args['coupons'];
			}
			$coupons_store  = new CouponsDataStore();
			$coupons        = $coupons_store->get_coupons( $args );
			$segments       = wp_list_pluck( $coupons, 'ID' );
			$segment_labels = wp_list_pluck( $coupons, 'post_title', 'ID' );
			$segment_labels = array_map( 'wc_format_coupon_code', $segment_labels );
		} elseif ( 'customer_type' === $this->query_args['segmentby'] ) {
			// 0 -- new customer
			// 1 -- returning customer
			$segments = array( 0, 1 );
		} elseif ( 'tax_rate_id' === $this->query_args['segmentby'] ) {
			$args = array();
			if ( isset( $this->query_args['taxes'] ) ) {
				$args['include'] = $this->query_args['taxes'];
			}
			$taxes = TaxesStatsDataStore::get_taxes( $args );

foreach ( $taxes as $tax ) {
				$id                    = $tax['tax_rate_id'];
				$segments[]            = $id;
				$segment_labels[ $id ] = \WC_Tax::get_rate_code( (object) $tax );
			}
		} else {
			// Catch all default.
			$segments = array();
		}

$this->all_segment_ids = $segments;
		$this->segment_labels  = $segment_labels;
	}

/**
	 * Return all segment ids for given segmentby query parameter.
	 *
	 * @return array
	 */
	protected function get_all_segments() {
		if ( ! is_array( $this->all_segment_ids ) ) {
			$this->set_all_segments();
		}

return $this->all_segment_ids;
	}

/**
	 * Return all segment labels for given segmentby query parameter.
	 *
	 * @return array
	 */
	protected function get_segment_labels() {
		if ( ! is_array( $this->all_segment_ids ) ) {
			$this->set_all_segments();
		}

return $this->segment_labels;
	}

/**
	 * Compares two report data objects by pre-defined object property and ASC/DESC ordering.
	 *
	 * @param stdClass $a Object a.
	 * @param stdClass $b Object b.
	 * @return string
	 */
	private function segment_cmp( $a, $b ) {
		if ( $a['segment_id'] === $b['segment_id'] ) {
			return 0;
		} elseif ( $a['segment_id'] > $b['segment_id'] ) {
			return 1;
		} elseif ( $a['segment_id'] < $b['segment_id'] ) {
			return - 1;
		}
	}

/**
	 * Adds zeroes for segments not present in the data selection.
	 *
	 * @param array $segments Array of segments from the database for given data points.
	 *
	 * @return array
	 */
	protected function fill_in_missing_segments( $segments ) {
		$segment_subtotals = array();
		if ( isset( $this->query_args['fields'] ) && is_array( $this->query_args['fields'] ) ) {
			foreach ( $this->query_args['fields'] as $field ) {
				if ( isset( $this->report_columns[ $field ] ) ) {
					$segment_subtotals[ $field ] = 0;
				}
			}
		} else {
			foreach ( $this->report_columns as $field => $sql_clause ) {
				$segment_subtotals[ $field ] = 0;
			}
		}
		if ( ! is_array( $segments ) ) {
			$segments = array();
		}
		$all_segment_ids = $this->get_all_segments();
		$segment_labels  = $this->get_segment_labels();
		foreach ( $all_segment_ids as $segment_id ) {
			if ( ! isset( $segments[ $segment_id ] ) ) {
				$segments[ $segment_id ] = array(
					'segment_id'    => $segment_id,
					'segment_label' => $segment_labels[ $segment_id ],
					'subtotals'     => $segment_subtotals,
				);
			}
		}

// Using array_values to remove custom keys, so that it gets later converted to JSON as an array.
		$segments_no_keys = array_values( $segments );
		usort( $segments_no_keys, array( $this, 'segment_cmp' ) );
		return $segments_no_keys;
	}

/**
	 * Adds missing segments to intervals, modifies $data.
	 *
	 * @param stdClass $data Response data.
	 */
	protected function fill_in_missing_interval_segments( &$data ) {
		foreach ( $data->intervals as $order_id => $interval_data ) {
			$data->intervals[ $order_id ]['segments'] = $this->fill_in_missing_segments( $data->intervals[ $order_id ]['segments'] );
		}
	}

/**
	 * 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 ) {
		return array();
	}

/**
	 * 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 ) {
		return array();
	}

/**
	 * 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 ) {
		return array();
	}

/**
	 * 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 ) {
		return array();
	}

/**
	 * 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
	 */
	protected function get_segments( $type, $query_params, $table_name ) {
		return array();
	}

/**
	 * Calculate segments for segmenting property bound to product (e.g. category, product_id, variation_id).
	 *
	 * @param string $type Type of segments to return--'totals' or 'intervals'.
	 * @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  $query_params Array of SQL clauses for intervals/totals query.
	 * @param string $unique_orders_table Name of temporary SQL table that holds unique orders.
	 *
	 * @return array
	 */
	protected function get_product_related_segments( $type, $segmenting_selections, $segmenting_from, $segmenting_where, $segmenting_groupby, $segmenting_dimension_name, $table_name, $query_params, $unique_orders_table ) {
		if ( 'totals' === $type ) {
			return $this->get_product_related_totals_segments( $segmenting_selections, $segmenting_from, $segmenting_where, $segmenting_groupby, $segmenting_dimension_name, $table_name, $query_params, $unique_orders_table );
		} elseif ( 'intervals' === $type ) {
			return $this->get_product_related_intervals_segments( $segmenting_selections, $segmenting_from, $segmenting_where, $segmenting_groupby, $segmenting_dimension_name, $table_name, $query_params, $unique_orders_table );
		}
	}

/**
	 * Calculate segments for segmenting property bound to order (e.g. coupon or customer type).
	 *
	 * @param string $type Type of segments to return--'totals' or 'intervals'.
	 * @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  $query_params Array of SQL clauses for intervals/totals query.
	 *
	 * @return array
	 */
	protected function get_order_related_segments( $type, $segmenting_select, $segmenting_from, $segmenting_where, $segmenting_groupby, $table_name, $query_params ) {
		if ( 'totals' === $type ) {
			return $this->get_order_related_totals_segments( $segmenting_select, $segmenting_from, $segmenting_where, $segmenting_groupby, $table_name, $query_params );
		} elseif ( 'intervals' === $type ) {
			return $this->get_order_related_intervals_segments( $segmenting_select, $segmenting_from, $segmenting_where, $segmenting_groupby, $table_name, $query_params );
		}
	}

/**
	 * Assign segments to time intervals by updating original $intervals array.
	 *
	 * @param array $intervals Result array from intervals SQL query.
	 * @param array $intervals_segments Result array from interval segments SQL query.
	 */
	protected function assign_segments_to_intervals( &$intervals, $intervals_segments ) {
		$old_keys = array_keys( $intervals );
		foreach ( $intervals as $interval ) {
			$intervals[ $interval['time_interval'] ]             = $interval;
			$intervals[ $interval['time_interval'] ]['segments'] = array();
		}
		foreach ( $old_keys as $key ) {
			unset( $intervals[ $key ] );
		}

foreach ( $intervals_segments as $time_interval => $segment ) {
			if ( isset( $intervals[ $time_interval ] ) ) {
				$intervals[ $time_interval ]['segments'] = $segment['segments'];
			}
		}
		// To remove time interval keys (so that REST response is formatted correctly).
		$intervals = array_values( $intervals );
	}

/**
	 * Returns an array of segments for totals part of REST response.
	 *
	 * @param array  $query_params Totals SQL query parameters.
	 * @param string $table_name Name of the SQL table that is the main order stats table.
	 *
	 * @return array
	 */
	public function get_totals_segments( $query_params, $table_name ) {
		$segments = $this->get_segments( 'totals', $query_params, $table_name );
		$segments = $this->fill_in_missing_segments( $segments );

return $segments;
	}

/**
	 * Adds an array of segments to data->intervals object.
	 *
	 * @param stdClass $data Data object representing the REST response.
	 * @param array    $intervals_query Intervals SQL query parameters.
	 * @param string   $table_name Name of the SQL table that is the main order stats table.
	 */
	public function add_intervals_segments( &$data, $intervals_query, $table_name ) {
		$intervals_segments = $this->get_segments( 'intervals', $intervals_query, $table_name );

$this->assign_segments_to_intervals( $data->intervals, $intervals_segments );
		$this->fill_in_missing_interval_segments( $data );
	}
}

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