DataStore.php — WooCommerce 10.9.3

woocommerce / src / Admin / API / Reports / DataStore.php

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DataStore.php

1624 lines

1	<?php
2	/**
3	* Admin\API\Reports\DataStore class file.
4	*/
5
6	namespace Automattic\WooCommerce\Admin\API\Reports;
7
8	if ( ! defined( 'ABSPATH' ) ) {
9	exit;
10	}
11
12	use Automattic\WooCommerce\Admin\API\Reports\DataStoreInterface;
13	use Automattic\WooCommerce\Admin\API\Reports\TimeInterval;
14
15	/**
16	* Common parent for custom report data stores.
17	*
18	* We use Report DataStores to separate DB data retrieval logic from the REST API controllers.
19	*
20	* Handles caching, data normalization, intervals-related methods, and other common functionality.
21	* So, in your custom report DataStore class that extends this class
22	* you can focus on specifics by overriding the `get_noncached_data` method.
23	*
24	* Minimalistic example:
25	* <pre><code class="language-php">class MyDataStore extends DataStore implements DataStoreInterface {
26	* /** Cache identifier, used by the `DataStore` class to handle caching for you. &ast;/
27	* protected $cache_key = 'my_thing';
28	* /** Data store context used to pass to filters. &ast;/
29	* protected $context = 'my_thing';
30	* /** Table used to get the data. &ast;/
31	* protected static $table_name = 'my_table';
32	* /**
33	* * Method that overrides the `DataStore::get_noncached_data()` to return the report data.
34	* * Will be called by `get_data` if there is no data in cache.
35	* &ast;/
36	* public function get_noncached_data( $query ) {
37	* // Do your magic.
38	*
39	* // Then return your data in conforming object structure.
40	* return (object) array(
41	* 'data' => $product_data,
42	* 'total' => 1,
43	* 'page_no' => 1,
44	* 'pages' => 1,
45	* );
46	* }
47	* }
48	* </code></pre>
49	*
50	* Please use the `woocommerce_data_stores` filter to add your custom data store to the list of available ones.
51	* Then, your store could be accessed by Controller classes ({@see GenericController::get_datastore_data() GenericController::get_datastore_data()})
52	* or using {@link \WC_Data_Store::load() \WC_Data_Store::load()}.
53	*
54	* We recommend registering using the REST base name of your Controller as the key, e.g.:
55	* <pre><code class="language-php">add_filter( 'woocommerce_data_stores', function( $stores ) {
56	* $stores['reports/my-thing'] = 'MyExtension\Admin\Analytics\Rest_API\MyDataStore';
57	* } );
58	* </code></pre>
59	* This way, `GenericController` will pick it up automatically.
60	*
61	* Note that this class is NOT {@link https://developer.woocommerce.com/docs/how-to-manage-woocommerce-data-stores/ a CRUD data store}.
62	* It does not implement the {@see WC_Object_Data_Store_Interface WC_Object_Data_Store_Interface} nor extend WC_Data & WC_Data_Store_WP classes.
63	*/
64	class DataStore extends SqlQuery implements DataStoreInterface {
65
66	/**
67	* Cache group for the reports.
68	*
69	* @var string
70	*/
71	protected $cache_group = 'reports';
72
73	/**
74	* Time out for the cache.
75	*
76	* @var int
77	*/
78	protected $cache_timeout = 3600;
79
80	/**
81	* Cache identifier.
82	*
83	* @var string
84	*/
85	protected $cache_key = '';
86
87	/**
88	* Table used as a data store for this report.
89	*
90	* @var string
91	*/
92	protected static $table_name = '';
93
94	/**
95	* Date field name.
96	*
97	* @var string
98	*/
99	protected $date_column_name = 'date_created';
100
101	/**
102	* Mapping columns to data type to return correct response types.
103	*
104	* @var array
105	*/
106	protected $column_types = array();
107
108	/**
109	* SQL columns to select in the db query.
110	*
111	* @var array
112	*/
113	protected $report_columns = array();
114
115	// @todo This does not really belong here, maybe factor out the comparison as separate class?
116	/**
117	* Order by property, used in the cmp function.
118	*
119	* @var string
120	*/
121	private $order_by = '';
122
123	/**
124	* Order property, used in the cmp function.
125	*
126	* @var string
127	*/
128	private $order = '';
129
130	/**
131	* Query limit parameters.
132	*
133	* @var array
134	*/
135	private $limit_parameters = array();
136
137	/**
138	* Data store context used to pass to filters.
139	*
140	* @override SqlQuery
141	*
142	* @var string
143	*/
144	protected $context = 'reports';
145
146	/**
147	* Subquery object for query nesting.
148	*
149	* @var SqlQuery
150	*/
151	protected $subquery;
152
153	/**
154	* Totals query object.
155	*
156	* @var SqlQuery
157	*/
158	protected $total_query;
159
160	/**
161	* Intervals query object.
162	*
163	* @var SqlQuery
164	*/
165	protected $interval_query;
166
167	/**
168	* Refresh the cache for the current query when true.
169	*
170	* @var bool
171	*/
172	protected $force_cache_refresh = false;
173
174	/**
175	* Include debugging information in the returned data when true.
176	*
177	* @var bool
178	*/
179	protected $debug_cache = true;
180
181	/**
182	* Debugging information to include in the returned data.
183	*
184	* @var array
185	*/
186	protected $debug_cache_data = array();
187
188	/**
189	* Class constructor.
190	*
191	* @override SqlQuery::__construct()
192	*/
193	public function __construct() {
194	self::set_db_table_name();
195	$this->assign_report_columns();
196
197	if ( $this->report_columns ) {
198	$this->report_columns = apply_filters(
199	'woocommerce_admin_report_columns',
200	$this->report_columns,
201	$this->context,
202	self::get_db_table_name()
203	);
204	}
205
206	// Utilize enveloped responses to include debugging info.
207	// See https://querymonitor.com/blog/2021/05/debugging-wordpress-rest-api-requests/
208	if ( isset( $_GET['_envelope'] ) ) {
209	$this->debug_cache = true;
210	add_filter( 'rest_envelope_response', array( $this, 'add_debug_cache_to_envelope' ), 999, 2 );
211	}
212	}
213
214
215	/**
216	* Get the data based on args.
217	*
218	* Returns the report data based on parameters supplied by the user.
219	* Fetches it from cache or returns `get_noncached_data` result.
220	*
221	* @param array $query_args Query parameters.
222	* @return stdClass\|WP_Error
223	*/
224	public function get_data( $query_args ) {
225	$defaults = $this->get_default_query_vars();
226	$query_args = wp_parse_args( $query_args, $defaults );
227	$this->normalize_timezones( $query_args, $defaults );
228
229	/*
230	* We need to get the cache key here because
231	* parent::update_intervals_sql_params() modifies $query_args.
232	*/
233	$cache_key = $this->get_cache_key( $query_args );
234	$data = $this->get_cached_data( $cache_key );
235
236	if ( false === $data ) {
237	$data = $this->get_noncached_data( $query_args );
238	$this->set_cached_data( $cache_key, $data );
239	}
240
241	return $data;
242	}
243
244	/**
245	* Get the default query arguments to be used by get_data().
246	* These defaults are only partially applied when used via REST API, as that has its own defaults.
247	*
248	* @return array Query parameters.
249	*/
250	public function get_default_query_vars() {
251	return array(
252	'per_page' => get_option( 'posts_per_page' ),
253	'page' => 1,
254	'order' => 'DESC',
255	'orderby' => 'date',
256	'before' => TimeInterval::default_before(),
257	'after' => TimeInterval::default_after(),
258	'fields' => '*',
259	);
260	}
261
262	/**
263	* Get table name from database class.
264	*/
265	public static function get_db_table_name() {
266	global $wpdb;
267	return isset( $wpdb->{static::$table_name} ) ? $wpdb->{static::$table_name} : $wpdb->prefix . static::$table_name;
268	}
269
270	/**
271	* Returns the report data based on normalized parameters.
272	* Will be called by `get_data` if there is no data in cache.
273	*
274	* @see get_data
275	* @param array $query_args Query parameters.
276	* @return stdClass\|WP_Error Data object `{ totals: *, intervals: array, total: int, pages: int, page_no: int }`, or error.
277	*/
278	public function get_noncached_data( $query_args ) {
279	/* translators: %s: Method name */
280	return new \WP_Error( 'invalid-method', sprintf( __( "Method '%s' not implemented. Must be overridden in subclass.", 'woocommerce' ), __METHOD__ ), array( 'status' => 405 ) );
281	}
282
283	/**
284	* Set table name from database class.
285	*/
286	protected static function set_db_table_name() {
287	global $wpdb;
288	if ( static::$table_name && ! isset( $wpdb->{static::$table_name} ) ) {
289	$wpdb->{static::$table_name} = $wpdb->prefix . static::$table_name;
290	}
291	}
292
293	/**
294	* Whether or not the report should use the caching layer.
295	*
296	* Provides an opportunity for plugins to prevent reports from using cache.
297	*
298	* @return boolean Whether or not to utilize caching.
299	*/
300	protected function should_use_cache() {
301	/**
302	* Determines if a report will utilize caching.
303	*
304	* @param bool $use_cache Whether or not to use cache.
305	* @param string $cache_key The report's cache key. Used to identify the report.
306	*/
307	return (bool) apply_filters( 'woocommerce_analytics_report_should_use_cache', true, $this->cache_key );
308	}
309
310	/**
311	* Returns string to be used as cache key for the data.
312	*
313	* @param array $params Query parameters.
314	* @return string
315	*/
316	protected function get_cache_key( $params ) {
317	if ( isset( $params['force_cache_refresh'] ) ) {
318	if ( true === $params['force_cache_refresh'] ) {
319	$this->force_cache_refresh = true;
320	}
321
322	// We don't want this param in the key.
323	unset( $params['force_cache_refresh'] );
324	}
325
326	if ( true === $this->debug_cache ) {
327	$this->debug_cache_data['query_args'] = $params;
328	}
329
330	// Normalize the $params to reduce cache misses.
331	$params = array_filter(
332	$params,
333	function ( $param ) {
334	return ! empty( $param );
335	}
336	);
337
338	// Normalize DateTime objects to ISO 8601 strings to avoid cache key
339	// instability caused by microsecond-level differences in serialization.
340	array_walk(
341	$params,
342	function ( &$value ) {
343	if ( $value instanceof \DateTimeInterface ) {
344	$value = $value->format( DATE_ATOM );
345	}
346	}
347	);
348
349	ksort( $params );
350	return implode(
351	'_',
352	array(
353	'wc_report',
354	$this->cache_key,
355	md5( wp_json_encode( $params ) ),
356	)
357	);
358	}
359
360	/**
361	* Wrapper around Cache::get().
362	*
363	* @param string $cache_key Cache key.
364	* @return mixed
365	*/
366	protected function get_cached_data( $cache_key ) {
367	if ( true === $this->debug_cache ) {
368	$this->debug_cache_data['should_use_cache'] = $this->should_use_cache();
369	$this->debug_cache_data['force_cache_refresh'] = $this->force_cache_refresh;
370	$this->debug_cache_data['cache_hit'] = false;
371	}
372
373	if ( $this->should_use_cache() && false === $this->force_cache_refresh ) {
374	$cached_data = Cache::get( $cache_key );
375
376	$cache_hit = false !== $cached_data;
377	if ( true === $this->debug_cache ) {
378	$this->debug_cache_data['cache_hit'] = $cache_hit;
379	}
380
381	return $cached_data;
382	}
383
384	// Cached item has now functionally been refreshed. Reset the option.
385	$this->force_cache_refresh = false;
386
387	return false;
388	}
389
390	/**
391	* Wrapper around Cache::set().
392	*
393	* @param string $cache_key Cache key.
394	* @param mixed $value New value.
395	* @return bool
396	*/
397	protected function set_cached_data( $cache_key, $value ) {
398	if ( $this->should_use_cache() ) {
399	return Cache::set( $cache_key, $value );
400	}
401
402	return true;
403	}
404
405	/**
406	* Add cache debugging information to an enveloped API response.
407	*
408	* @param array $envelope
409	* @param \WP_REST_Response $response
410	*
411	* @return array
412	*/
413	public function add_debug_cache_to_envelope( $envelope, $response ) {
414	if ( 0 !== strncmp( '/wc-analytics', $response->get_matched_route(), 13 ) ) {
415	return $envelope;
416	}
417
418	if ( ! empty( $this->debug_cache_data ) ) {
419	$envelope['debug_cache'] = $this->debug_cache_data;
420	}
421
422	return $envelope;
423	}
424
425	/**
426	* Compares two report data objects by pre-defined object property and ASC/DESC ordering.
427	*
428	* @param stdClass $a Object a.
429	* @param stdClass $b Object b.
430	* @return string
431	*/
432	private function interval_cmp( $a, $b ) {
433	if ( '' === $this->order_by \|\| '' === $this->order ) {
434	return 0;
435	// @todo Should return WP_Error here perhaps?
436	}
437	if ( $a[ $this->order_by ] === $b[ $this->order_by ] ) {
438	// As relative order is undefined in case of equality in usort, second-level sorting by date needs to be enforced
439	// so that paging is stable.
440	if ( $a['time_interval'] === $b['time_interval'] ) {
441	return 0; // This should never happen.
442	} elseif ( $a['time_interval'] > $b['time_interval'] ) {
443	return 1;
444	} elseif ( $a['time_interval'] < $b['time_interval'] ) {
445	return -1;
446	}
447	} elseif ( $a[ $this->order_by ] > $b[ $this->order_by ] ) {
448	return strtolower( $this->order ) === 'desc' ? -1 : 1;
449	} elseif ( $a[ $this->order_by ] < $b[ $this->order_by ] ) {
450	return strtolower( $this->order ) === 'desc' ? 1 : -1;
451	}
452	}
453
454	/**
455	* Sorts intervals according to user's request.
456	*
457	* They are pre-sorted in SQL, but after adding gaps, they need to be sorted including the added ones.
458	*
459	* @param stdClass $data Data object, must contain an array under $data->intervals.
460	* @param string $sort_by Ordering property.
461	* @param string $direction DESC/ASC.
462	*/
463	protected function sort_intervals( &$data, $sort_by, $direction ) {
464	$this->sort_array( $data->intervals, $sort_by, $direction );
465	}
466
467	/**
468	* Sorts array of arrays based on subarray key $sort_by.
469	*
470	* @param array $arr Array to sort.
471	* @param string $sort_by Ordering property.
472	* @param string $direction DESC/ASC.
473	*/
474	protected function sort_array( &$arr, $sort_by, $direction ) {
475	$this->order_by = $this->normalize_order_by( $sort_by );
476	$this->order = $direction;
477	usort( $arr, array( $this, 'interval_cmp' ) );
478	}
479
480	/**
481	* Fills in interval gaps from DB with 0-filled objects.
482	*
483	* @param array $db_intervals Array of all intervals present in the db.
484	* @param DateTime $start_datetime Start date.
485	* @param DateTime $end_datetime End date.
486	* @param string $time_interval Time interval, e.g. day, week, month.
487	* @param stdClass $data Data with SQL extracted intervals.
488	* @return stdClass
489	*/
490	protected function fill_in_missing_intervals( $db_intervals, $start_datetime, $end_datetime, $time_interval, &$data ) {
491	// @todo This is ugly and messy.
492	$local_tz = new \DateTimeZone( wc_timezone_string() );
493	// At this point, we don't know when we can stop iterating, as the ordering can be based on any value.
494	$time_ids = array_flip( wp_list_pluck( $data->intervals, 'time_interval' ) );
495	$db_intervals = array_flip( $db_intervals );
496	// Totals object used to get all needed properties.
497	$totals_arr = get_object_vars( $data->totals );
498	foreach ( $totals_arr as $key => $val ) {
499	$totals_arr[ $key ] = 0;
500	}
501	// @todo Should 'products' be in intervals?
502	unset( $totals_arr['products'] );
503	while ( $start_datetime <= $end_datetime ) {
504	$next_start = TimeInterval::iterate( $start_datetime, $time_interval );
505	$time_id = TimeInterval::time_interval_id( $time_interval, $start_datetime );
506	// Either create fill-zero interval or use data from db.
507	if ( $next_start > $end_datetime ) {
508	$interval_end = $end_datetime->format( 'Y-m-d H:i:s' );
509	} else {
510	$prev_end_timestamp = (int) $next_start->format( 'U' ) - 1;
511	$prev_end = new \DateTime();
512	$prev_end->setTimestamp( $prev_end_timestamp );
513	$prev_end->setTimezone( $local_tz );
514	$interval_end = $prev_end->format( 'Y-m-d H:i:s' );
515	}
516	if ( array_key_exists( $time_id, $time_ids ) ) {
517	// For interval present in the db for this time frame, just fill in dates.
518	$record = &$data->intervals[ $time_ids[ $time_id ] ];
519	$record['date_start'] = $start_datetime->format( 'Y-m-d H:i:s' );
520	$record['date_end'] = $interval_end;
521	} elseif ( ! array_key_exists( $time_id, $db_intervals ) ) {
522	// For intervals present in the db outside of this time frame, do nothing.
523	// For intervals not present in the db, fabricate it.
524	$record_arr = array();
525	$record_arr['time_interval'] = $time_id;
526	$record_arr['date_start'] = $start_datetime->format( 'Y-m-d H:i:s' );
527	$record_arr['date_end'] = $interval_end;
528	$data->intervals[] = array_merge( $record_arr, $totals_arr );
529	}
530	$start_datetime = $next_start;
531	}
532	return $data;
533	}
534
535	/**
536	* Converts input datetime parameters to local timezone. If there are no inputs from the user in query_args,
537	* uses default from $defaults.
538	*
539	* @param array $query_args Array of query arguments.
540	* @param array $defaults Array of default values.
541	*/
542	protected function normalize_timezones( &$query_args, $defaults ) {
543	$local_tz = new \DateTimeZone( wc_timezone_string() );
544	foreach ( array( 'before', 'after' ) as $query_arg_key ) {
545	if ( isset( $query_args[ $query_arg_key ] ) && is_string( $query_args[ $query_arg_key ] ) ) {
546	// Assume that unspecified timezone is a local timezone.
547	$datetime = new \DateTime( $query_args[ $query_arg_key ], $local_tz );
548	// In case timezone was forced by using +HH:MM, convert to local timezone.
549	$datetime->setTimezone( $local_tz );
550	$query_args[ $query_arg_key ] = $datetime;
551	} elseif ( isset( $query_args[ $query_arg_key ] ) && is_a( $query_args[ $query_arg_key ], 'DateTime' ) ) {
552	// In case timezone is in other timezone, convert to local timezone.
553	$query_args[ $query_arg_key ]->setTimezone( $local_tz );
554	} else {
555	$query_args[ $query_arg_key ] = isset( $defaults[ $query_arg_key ] ) ? $defaults[ $query_arg_key ] : null;
556	}
557	}
558	}
559
560	/**
561	* Removes extra records from intervals so that only requested number of records get returned.
562	*
563	* @param stdClass $data Data from whose intervals the records get removed.
564	* @param int $page_no Offset requested by the user.
565	* @param int $items_per_page Number of records requested by the user.
566	* @param int $db_interval_count Database interval count.
567	* @param int $expected_interval_count Expected interval count on the output.
568	* @param string $order_by Order by field.
569	* @param string $order ASC or DESC.
570	*/
571	protected function remove_extra_records( &$data, $page_no, $items_per_page, $db_interval_count, $expected_interval_count, $order_by, $order ) {
572	if ( 'date' === strtolower( $order_by ) ) {
573	$offset = 0;
574	} else {
575	if ( 'asc' === strtolower( $order ) ) {
576	$offset = ( $page_no - 1 ) * $items_per_page;
577	} else {
578	$offset = ( $page_no - 1 ) * $items_per_page - $db_interval_count;
579	}
580	$offset = $offset < 0 ? 0 : $offset;
581	}
582	$count = $expected_interval_count - ( $page_no - 1 ) * $items_per_page;
583	if ( $count < 0 ) {
584	$count = 0;
585	} elseif ( $count > $items_per_page ) {
586	$count = $items_per_page;
587	}
588	$data->intervals = array_slice( $data->intervals, $offset, $count );
589	}
590
591	/**
592	* Returns expected number of items on the page in case of date ordering.
593	*
594	* @param int $expected_interval_count Expected number of intervals in total.
595	* @param int $items_per_page Number of items per page.
596	* @param int $page_no Page number.
597	*
598	* @return float\|int
599	*/
600	protected function expected_intervals_on_page( $expected_interval_count, $items_per_page, $page_no ) {
601	$total_pages = (int) ceil( $expected_interval_count / $items_per_page );
602	if ( $page_no < $total_pages ) {
603	return $items_per_page;
604	} elseif ( $page_no === $total_pages ) {
605	return $expected_interval_count - ( $page_no - 1 ) * $items_per_page;
606	} else {
607	return 0;
608	}
609	}
610
611	/**
612	* Returns true if there are any intervals that need to be filled in the response.
613	*
614	* @param int $expected_interval_count Expected number of intervals in total.
615	* @param int $db_records Total number of records for given period in the database.
616	* @param int $items_per_page Number of items per page.
617	* @param int $page_no Page number.
618	* @param string $order asc or desc.
619	* @param string $order_by Column by which the result will be sorted.
620	* @param int $intervals_count Number of records for given (possibly shortened) time interval.
621	*
622	* @return bool
623	*/
624	protected function intervals_missing( $expected_interval_count, $db_records, $items_per_page, $page_no, $order, $order_by, $intervals_count ) {
625	if ( $expected_interval_count <= $db_records ) {
626	return false;
627	}
628	if ( 'date' === $order_by ) {
629	$expected_intervals_on_page = $this->expected_intervals_on_page( $expected_interval_count, $items_per_page, $page_no );
630	return $intervals_count < $expected_intervals_on_page;
631	}
632	if ( 'desc' === $order ) {
633	return $page_no > floor( $db_records / $items_per_page );
634	}
635	if ( 'asc' === $order ) {
636	return $page_no <= ceil( ( $expected_interval_count - $db_records ) / $items_per_page );
637	}
638	// Invalid ordering.
639	return false;
640	}
641
642	/**
643	* Updates the LIMIT query part for Intervals query of the report.
644	*
645	* If there are less records in the database than time intervals, then we need to remap offset in SQL query
646	* to fetch correct records.
647	*
648	* @param array $query_args Query arguments.
649	* @param int $db_interval_count Database interval count.
650	* @param int $expected_interval_count Expected interval count on the output.
651	* @param string $table_name Name of the db table relevant for the date constraint.
652	*/
653	protected function update_intervals_sql_params( &$query_args, $db_interval_count, $expected_interval_count, $table_name ) {
654	if ( $db_interval_count === $expected_interval_count ) {
655	return;
656	}
657
658	$params = $this->get_limit_params( $query_args );
659	$local_tz = new \DateTimeZone( wc_timezone_string() );
660	if ( 'date' === strtolower( $query_args['orderby'] ) ) {
661	// page X in request translates to slightly different dates in the db, in case some
662	// records are missing from the db.
663	$start_iteration = 0;
664	$end_iteration = 0;
665	if ( 'asc' === strtolower( $query_args['order'] ) ) {
666	// ORDER BY date ASC.
667	$new_start_date = $query_args['after'];
668	$intervals_to_skip = ( $query_args['page'] - 1 ) * $params['per_page'];
669	$latest_end_date = $query_args['before'];
670	for ( $i = 0; $i < $intervals_to_skip; $i++ ) {
671	if ( $new_start_date > $latest_end_date ) {
672	$new_start_date = $latest_end_date;
673	$start_iteration = 0;
674	break;
675	}
676	$new_start_date = TimeInterval::iterate( $new_start_date, $query_args['interval'] );
677	$start_iteration ++;
678	}
679
680	$new_end_date = clone $new_start_date;
681	for ( $i = 0; $i < $params['per_page']; $i++ ) {
682	if ( $new_end_date > $latest_end_date ) {
683	break;
684	}
685	$new_end_date = TimeInterval::iterate( $new_end_date, $query_args['interval'] );
686	$end_iteration ++;
687	}
688	if ( $new_end_date > $latest_end_date ) {
689	$new_end_date = $latest_end_date;
690	$end_iteration = 0;
691	}
692	if ( $end_iteration ) {
693	$new_end_date_timestamp = (int) $new_end_date->format( 'U' ) - 1;
694	$new_end_date->setTimestamp( $new_end_date_timestamp );
695	}
696	} else {
697	// ORDER BY date DESC.
698	$new_end_date = $query_args['before'];
699	$intervals_to_skip = ( $query_args['page'] - 1 ) * $params['per_page'];
700	$earliest_start_date = $query_args['after'];
701	for ( $i = 0; $i < $intervals_to_skip; $i++ ) {
702	if ( $new_end_date < $earliest_start_date ) {
703	$new_end_date = $earliest_start_date;
704	$end_iteration = 0;
705	break;
706	}
707	$new_end_date = TimeInterval::iterate( $new_end_date, $query_args['interval'], true );
708	$end_iteration ++;
709	}
710
711	$new_start_date = clone $new_end_date;
712	for ( $i = 0; $i < $params['per_page']; $i++ ) {
713	if ( $new_start_date < $earliest_start_date ) {
714	break;
715	}
716	$new_start_date = TimeInterval::iterate( $new_start_date, $query_args['interval'], true );
717	$start_iteration ++;
718	}
719	if ( $new_start_date < $earliest_start_date ) {
720	$new_start_date = $earliest_start_date;
721	$start_iteration = 0;
722	}
723	if ( $start_iteration ) {
724	// @todo Is this correct? should it only be added if iterate runs? other two iterate instances, too?
725	$new_start_date_timestamp = (int) $new_start_date->format( 'U' ) + 1;
726	$new_start_date->setTimestamp( $new_start_date_timestamp );
727	}
728	}
729	// @todo - Do this without modifying $query_args?
730	$query_args['adj_after'] = $new_start_date;
731	$query_args['adj_before'] = $new_end_date;
732	$adj_after = $new_start_date->format( TimeInterval::$sql_datetime_format );
733	$adj_before = $new_end_date->format( TimeInterval::$sql_datetime_format );
734	$this->interval_query->clear_sql_clause( array( 'where_time', 'limit' ) );
735	$this->interval_query->add_sql_clause( 'where_time', "AND {$table_name}.`{$this->date_column_name}` <= '$adj_before'" );
736	$this->interval_query->add_sql_clause( 'where_time', "AND {$table_name}.`{$this->date_column_name}` >= '$adj_after'" );
737	$this->clear_sql_clause( 'limit' );
738	$this->add_sql_clause( 'limit', 'LIMIT 0,' . $params['per_page'] );
739	} else {
740	if ( 'asc' === $query_args['order'] ) {
741	$offset = ( ( $query_args['page'] - 1 ) * $params['per_page'] ) - ( $expected_interval_count - $db_interval_count );
742	$offset = $offset < 0 ? 0 : $offset;
743	$count = $query_args['page'] * $params['per_page'] - ( $expected_interval_count - $db_interval_count );
744	if ( $count < 0 ) {
745	$count = 0;
746	} elseif ( $count > $params['per_page'] ) {
747	$count = $params['per_page'];
748	}
749
750	$this->clear_sql_clause( 'limit' );
751	$this->add_sql_clause( 'limit', 'LIMIT ' . $offset . ',' . $count );
752	}
753	// Otherwise no change in limit clause.
754	// @todo - Do this without modifying $query_args?
755	$query_args['adj_after'] = $query_args['after'];
756	$query_args['adj_before'] = $query_args['before'];
757	}
758	}
759
760	/**
761	* Casts strings returned from the database to appropriate data types for output.
762	*
763	* @param array $array Associative array of values extracted from the database.
764	* @return array\|WP_Error
765	*/
766	protected function cast_numbers( $array ) {
767	$retyped_array = array();
768	$column_types = apply_filters( 'woocommerce_rest_reports_column_types', $this->column_types, $array );
769	foreach ( $array as $column_name => $value ) {
770	if ( is_array( $value ) ) {
771	$value = $this->cast_numbers( $value );
772	}
773
774	if ( isset( $column_types[ $column_name ] ) ) {
775	$retyped_array[ $column_name ] = $column_types[ $column_name ]( $value );
776	} else {
777	$retyped_array[ $column_name ] = $value;
778	}
779	}
780	return $retyped_array;
781	}
782
783	/**
784	* Returns a list of columns selected by the query_args formatted as a comma separated string.
785	*
786	* @param array $query_args User-supplied options.
787	* @return string
788	*/
789	protected function selected_columns( $query_args ) {
790	$selections = $this->report_columns;
791
792	if ( isset( $query_args['fields'] ) && is_array( $query_args['fields'] ) ) {
793	$keep = array();
794	foreach ( $query_args['fields'] as $field ) {
795	if ( isset( $selections[ $field ] ) ) {
796	$keep[ $field ] = $selections[ $field ];
797	}
798	}
799	$selections = implode( ', ', $keep );
800	} else {
801	$selections = implode( ', ', $selections );
802	}
803	return $selections;
804	}
805
806	/**
807	* Get the excluded order statuses used when calculating reports.
808	*
809	* @return array
810	*/
811	protected static function get_excluded_report_order_statuses() {
812	$excluded_statuses = \WC_Admin_Settings::get_option( 'woocommerce_excluded_report_order_statuses', array( 'pending', 'failed', 'cancelled' ) );
813	$excluded_statuses = array_merge( array( 'auto-draft', 'trash' ), array_map( 'esc_sql', $excluded_statuses ) );
814	return apply_filters( 'woocommerce_analytics_excluded_order_statuses', $excluded_statuses );
815	}
816
817	/**
818	* Maps order status provided by the user to the one used in the database.
819	*
820	* @param string $status Order status.
821	* @return string
822	*/
823	protected static function normalize_order_status( $status ) {
824	$status = trim( $status );
825	return 'wc-' . $status;
826	}
827
828	/**
829	* Normalizes order_by clause to match to SQL query.
830	*
831	* @param string $order_by Order by option requested by user.
832	* @return string
833	*/
834	protected function normalize_order_by( $order_by ) {
835	if ( 'date' === $order_by ) {
836	return 'time_interval';
837	}
838
839	return $order_by;
840	}
841
842	/**
843	* Updates start and end dates for intervals so that they represent intervals' borders, not times when data in db were recorded.
844	*
845	* E.g. if there are db records for only Tuesday and Thursday this week, the actual week interval is [Mon, Sun], not [Tue, Thu].
846	*
847	* @param DateTime $start_datetime Start date.
848	* @param DateTime $end_datetime End date.
849	* @param string $time_interval Time interval, e.g. day, week, month.
850	* @param array $intervals Array of intervals extracted from SQL db.
851	*/
852	protected function update_interval_boundary_dates( $start_datetime, $end_datetime, $time_interval, &$intervals ) {
853	$local_tz = new \DateTimeZone( wc_timezone_string() );
854	foreach ( $intervals as $key => $interval ) {
855	$datetime = new \DateTime( $interval['datetime_anchor'], $local_tz );
856
857	$prev_start = TimeInterval::iterate( $datetime, $time_interval, true );
858	// @todo Not sure if the +1/-1 here are correct, especially as they are applied before the ?: below.
859	$prev_start_timestamp = (int) $prev_start->format( 'U' ) + 1;
860	$prev_start->setTimestamp( $prev_start_timestamp );
861	if ( $start_datetime ) {
862	$date_start = $prev_start < $start_datetime ? $start_datetime : $prev_start;
863	$intervals[ $key ]['date_start'] = $date_start->format( 'Y-m-d H:i:s' );
864	} else {
865	$intervals[ $key ]['date_start'] = $prev_start->format( 'Y-m-d H:i:s' );
866	}
867
868	$next_end = TimeInterval::iterate( $datetime, $time_interval );
869	$next_end_timestamp = (int) $next_end->format( 'U' ) - 1;
870	$next_end->setTimestamp( $next_end_timestamp );
871	if ( $end_datetime ) {
872	$date_end = $next_end > $end_datetime ? $end_datetime : $next_end;
873	$intervals[ $key ]['date_end'] = $date_end->format( 'Y-m-d H:i:s' );
874	} else {
875	$intervals[ $key ]['date_end'] = $next_end->format( 'Y-m-d H:i:s' );
876	}
877
878	$intervals[ $key ]['interval'] = $time_interval;
879	}
880	}
881
882	/**
883	* Change structure of intervals to form a correct response.
884	*
885	* Also converts local datetimes to GMT and adds them to the intervals.
886	*
887	* @param array $intervals Time interval, e.g. day, week, month.
888	*/
889	protected function create_interval_subtotals( &$intervals ) {
890	foreach ( $intervals as $key => $interval ) {
891	$start_gmt = TimeInterval::convert_local_datetime_to_gmt( $interval['date_start'] );
892	$end_gmt = TimeInterval::convert_local_datetime_to_gmt( $interval['date_end'] );
893	// Move intervals result to subtotals object.
894	$intervals[ $key ] = array(
895	'interval' => $interval['time_interval'],
896	'date_start' => $interval['date_start'],
897	'date_start_gmt' => $start_gmt->format( TimeInterval::$sql_datetime_format ),
898	'date_end' => $interval['date_end'],
899	'date_end_gmt' => $end_gmt->format( TimeInterval::$sql_datetime_format ),
900	);
901
902	unset( $interval['interval'] );
903	unset( $interval['date_start'] );
904	unset( $interval['date_end'] );
905	unset( $interval['datetime_anchor'] );
906	unset( $interval['time_interval'] );
907	$intervals[ $key ]['subtotals'] = (object) $this->cast_numbers( $interval );
908	}
909	}
910
911	/**
912	* Fills WHERE clause of SQL request with date-related constraints.
913	*
914	* @param array $query_args Parameters supplied by the user.
915	* @param string $table_name Name of the db table relevant for the date constraint.
916	*/
917	protected function add_time_period_sql_params( $query_args, $table_name ) {
918	$this->clear_sql_clause( array( 'from', 'where_time', 'where' ) );
919	if ( isset( $this->subquery ) ) {
920	$this->subquery->clear_sql_clause( 'where_time' );
921	}
922
923	if ( isset( $query_args['before'] ) && '' !== $query_args['before'] ) {
924	if ( is_a( $query_args['before'], 'WC_DateTime' ) ) {
925	$datetime_str = $query_args['before']->date( TimeInterval::$sql_datetime_format );
926	} else {
927	$datetime_str = $query_args['before']->format( TimeInterval::$sql_datetime_format );
928	}
929	if ( isset( $this->subquery ) ) {
930	$this->subquery->add_sql_clause( 'where_time', "AND {$table_name}.`{$this->date_column_name}` <= '$datetime_str'" );
931	} else {
932	$this->add_sql_clause( 'where_time', "AND {$table_name}.`{$this->date_column_name}` <= '$datetime_str'" );
933	}
934	}
935
936	if ( isset( $query_args['after'] ) && '' !== $query_args['after'] ) {
937	if ( is_a( $query_args['after'], 'WC_DateTime' ) ) {
938	$datetime_str = $query_args['after']->date( TimeInterval::$sql_datetime_format );
939	} else {
940	$datetime_str = $query_args['after']->format( TimeInterval::$sql_datetime_format );
941	}
942	if ( isset( $this->subquery ) ) {
943	$this->subquery->add_sql_clause( 'where_time', "AND {$table_name}.`{$this->date_column_name}` >= '$datetime_str'" );
944	} else {
945	$this->add_sql_clause( 'where_time', "AND {$table_name}.`{$this->date_column_name}` >= '$datetime_str'" );
946	}
947	}
948	}
949
950	/**
951	* Fills LIMIT clause of SQL request based on user supplied parameters.
952	*
953	* @param array $query_args Parameters supplied by the user.
954	* @return array
955	*/
956	protected function get_limit_sql_params( $query_args ) {
957	global $wpdb;
958	$params = $this->get_limit_params( $query_args );
959
960	$this->clear_sql_clause( 'limit' );
961	$this->add_sql_clause( 'limit', $wpdb->prepare( 'LIMIT %d, %d', $params['offset'], $params['per_page'] ) );
962	return $params;
963	}
964
965	/**
966	* Fills LIMIT parameters of SQL request based on user supplied parameters.
967	*
968	* @param array $query_args Parameters supplied by the user.
969	* @return array
970	*/
971	protected function get_limit_params( $query_args = array() ) {
972	if ( isset( $query_args['per_page'] ) && is_numeric( $query_args['per_page'] ) ) {
973	$this->limit_parameters['per_page'] = (int) $query_args['per_page'];
974	} else {
975	$this->limit_parameters['per_page'] = get_option( 'posts_per_page' );
976	}
977
978	$this->limit_parameters['offset'] = 0;
979	if ( isset( $query_args['page'] ) ) {
980	$this->limit_parameters['offset'] = ( (int) $query_args['page'] - 1 ) * $this->limit_parameters['per_page'];
981	}
982
983	return $this->limit_parameters;
984	}
985
986	/**
987	* Generates a virtual table given a list of IDs.
988	*
989	* @param array $ids Array of IDs.
990	* @param array $id_field Name of the ID field.
991	* @param array $other_values Other values that must be contained in the virtual table.
992	* @return array
993	*/
994	protected function get_ids_table( $ids, $id_field, $other_values = array() ) {
995	global $wpdb;
996	$selects = array();
997	foreach ( $ids as $id ) {
998	// phpcs:disable WordPress.DB.PreparedSQL.InterpolatedNotPrepared
999	$new_select = $wpdb->prepare( "SELECT %s AS {$id_field}", $id );
1000	foreach ( $other_values as $key => $value ) {
1001	$new_select .= $wpdb->prepare( ", %s AS {$key}", $value );
1002	}
1003	// phpcs:enable WordPress.DB.PreparedSQL.InterpolatedNotPrepared
1004	array_push( $selects, $new_select );
1005	}
1006	return join( ' UNION ', $selects );
1007	}
1008
1009	/**
1010	* Returns a comma separated list of the fields in the `query_args`, if there aren't, returns `report_columns` keys.
1011	*
1012	* @param array $query_args Parameters supplied by the user.
1013	* @return array
1014	*/
1015	protected function get_fields( $query_args ) {
1016	if ( isset( $query_args['fields'] ) && is_array( $query_args['fields'] ) ) {
1017	return $query_args['fields'];
1018	}
1019	return array_keys( $this->report_columns );
1020	}
1021
1022	/**
1023	* Returns a comma separated list of the field names prepared to be used for a selection after a join with `default_results`.
1024	*
1025	* @param array $fields Array of fields name.
1026	* @param array $default_results_fields Fields to load from `default_results` table.
1027	* @param array $outer_selections Array of fields that are not selected in the inner query.
1028	* @return string
1029	*/
1030	protected function format_join_selections( $fields, $default_results_fields, $outer_selections = array() ) {
1031	foreach ( $fields as $i => $field ) {
1032	foreach ( $default_results_fields as $default_results_field ) {
1033	if ( $field === $default_results_field ) {
1034	$field = esc_sql( $field );
1035	$fields[ $i ] = "default_results.{$field} AS {$field}";
1036	}
1037	}
1038	if ( in_array( $field, $outer_selections, true ) && array_key_exists( $field, $this->report_columns ) ) {
1039	$fields[ $i ] = $this->report_columns[ $field ];
1040	}
1041	}
1042	return implode( ', ', $fields );
1043	}
1044
1045	/**
1046	* Fills ORDER BY clause of SQL request based on user supplied parameters.
1047	*
1048	* @param array $query_args Parameters supplied by the user.
1049	*/
1050	protected function add_order_by_sql_params( $query_args ) {
1051	if ( isset( $query_args['orderby'] ) ) {
1052	$order_by_clause = $this->normalize_order_by( esc_sql( $query_args['orderby'] ) );
1053	} else {
1054	$order_by_clause = '';
1055	}
1056
1057	$this->clear_sql_clause( 'order_by' );
1058	$this->add_sql_clause( 'order_by', $order_by_clause );
1059	$this->add_orderby_order_clause( $query_args, $this );
1060	}
1061
1062	/**
1063	* Fills FROM and WHERE clauses of SQL request for 'Intervals' section of data response based on user supplied parameters.
1064	*
1065	* @param array $query_args Parameters supplied by the user.
1066	* @param string $table_name Name of the db table relevant for the date constraint.
1067	*/
1068	protected function add_intervals_sql_params( $query_args, $table_name ) {
1069	$this->clear_sql_clause( array( 'from', 'where_time', 'where' ) );
1070
1071	$this->add_time_period_sql_params( $query_args, $table_name );
1072
1073	if ( isset( $query_args['interval'] ) && '' !== $query_args['interval'] ) {
1074	$interval = $query_args['interval'];
1075	$this->clear_sql_clause( 'select' );
1076	$this->add_sql_clause( 'select', TimeInterval::db_datetime_format( $interval, $table_name, $this->date_column_name ) );
1077	}
1078	}
1079
1080	/**
1081	* Get join and where clauses for refunds based on user supplied parameters.
1082	*
1083	* @param array $query_args Parameters supplied by the user.
1084	* @return array
1085	*/
1086	protected function get_refund_subquery( $query_args ) {
1087	global $wpdb;
1088	$table_name = $wpdb->prefix . 'wc_order_stats';
1089	$sql_query = array(
1090	'where_clause' => '',
1091	'from_clause' => '',
1092	);
1093
1094	if ( ! isset( $query_args['refunds'] ) ) {
1095	return $sql_query;
1096	}
1097
1098	if ( 'all' === $query_args['refunds'] ) {
1099	$sql_query['where_clause'] .= 'parent_id != 0';
1100	}
1101
1102	if ( 'none' === $query_args['refunds'] ) {
1103	$sql_query['where_clause'] .= 'parent_id = 0';
1104	}
1105
1106	if ( 'full' === $query_args['refunds'] \|\| 'partial' === $query_args['refunds'] ) {
1107	$operator = 'full' === $query_args['refunds'] ? '=' : '!=';
1108	$sql_query['from_clause'] .= " JOIN {$table_name} parent_order_stats ON {$table_name}.parent_id = parent_order_stats.order_id";
1109	$sql_query['where_clause'] .= "parent_order_stats.status {$operator} '{$this->normalize_order_status( 'refunded' )}'";
1110	}
1111
1112	return $sql_query;
1113	}
1114
1115	/**
1116	* Returns an array of products belonging to given categories.
1117	*
1118	* @param array $categories List of categories IDs.
1119	* @return array\|stdClass
1120	*/
1121	protected function get_products_by_cat_ids( $categories ) {
1122	$terms = get_terms(
1123	array(
1124	'taxonomy' => 'product_cat',
1125	'include' => $categories,
1126	)
1127	);
1128
1129	if ( is_wp_error( $terms ) \|\| empty( $terms ) ) {
1130	return array();
1131	}
1132
1133	$args = array(
1134	'category' => wc_list_pluck( $terms, 'slug' ),
1135	'limit' => -1,
1136	'return' => 'ids',
1137	);
1138	return wc_get_products( $args );
1139	}
1140
1141	/**
1142	* Get WHERE filter by object ids subquery.
1143	*
1144	* @param string $select_table Select table name.
1145	* @param string $select_field Select table object ID field name.
1146	* @param string $filter_table Lookup table name.
1147	* @param string $filter_field Lookup table object ID field name.
1148	* @param string $compare Comparison string (IN\|NOT IN).
1149	* @param string $id_list Comma separated ID list.
1150	*
1151	* @return string
1152	*/
1153	protected function get_object_where_filter( $select_table, $select_field, $filter_table, $filter_field, $compare, $id_list ) {
1154	global $wpdb;
1155	if ( empty( $id_list ) ) {
1156	return '';
1157	}
1158
1159	$lookup_name = isset( $wpdb->$filter_table ) ? $wpdb->$filter_table : $wpdb->prefix . $filter_table;
1160	// phpcs:disable WordPress.DB.PreparedSQL.InterpolatedNotPrepared
1161	return " {$select_table}.{$select_field} {$compare} (
1162	SELECT
1163	DISTINCT {$filter_table}.{$select_field}
1164	FROM
1165	{$filter_table}
1166	WHERE
1167	{$filter_table}.{$filter_field} IN ({$id_list})
1168	)";
1169	// phpcs:enable WordPress.DB.PreparedSQL.InterpolatedNotPrepared
1170	}
1171
1172	/**
1173	* Returns an array of ids of allowed products, based on query arguments from the user.
1174	*
1175	* @param array $query_args Parameters supplied by the user.
1176	* @return array
1177	*/
1178	protected function get_included_products_array( $query_args ) {
1179	$included_products = array();
1180	$operator = $this->get_match_operator( $query_args );
1181
1182	if ( isset( $query_args['category_includes'] ) && is_array( $query_args['category_includes'] ) && count( $query_args['category_includes'] ) > 0 ) {
1183	$included_products = $this->get_products_by_cat_ids( $query_args['category_includes'] );
1184
1185	// If no products were found in the specified categories, we will force an empty set
1186	// by matching a product ID of -1, unless the filters are OR/any and products are specified.
1187	if ( empty( $included_products ) ) {
1188	$included_products = array( '-1' );
1189	}
1190	}
1191
1192	if ( isset( $query_args['product_includes'] ) && is_array( $query_args['product_includes'] ) && count( $query_args['product_includes'] ) > 0 ) {
1193	if ( count( $included_products ) > 0 ) {
1194	if ( 'AND' === $operator ) {
1195	// AND results in an intersection between products from selected categories and manually included products.
1196	$included_products = array_intersect( $included_products, $query_args['product_includes'] );
1197	} elseif ( 'OR' === $operator ) {
1198	// OR results in a union of products from selected categories and manually included products.
1199	$included_products = array_merge( $included_products, $query_args['product_includes'] );
1200	}
1201	} else {
1202	$included_products = $query_args['product_includes'];
1203	}
1204	}
1205
1206	return $included_products;
1207	}
1208
1209	/**
1210	* Returns comma separated ids of allowed products, based on query arguments from the user.
1211	*
1212	* @param array $query_args Parameters supplied by the user.
1213	* @return string
1214	*/
1215	protected function get_included_products( $query_args ) {
1216	$included_products = $this->get_included_products_array( $query_args );
1217	return implode( ',', $included_products );
1218	}
1219
1220	/**
1221	* Returns comma separated ids of allowed variations, based on query arguments from the user.
1222	*
1223	* @param array $query_args Parameters supplied by the user.
1224	* @return string
1225	*/
1226	protected function get_included_variations( $query_args ) {
1227	return $this->get_filtered_ids( $query_args, 'variation_includes' );
1228	}
1229
1230	/**
1231	* Returns comma separated ids of excluded variations, based on query arguments from the user.
1232	*
1233	* @param array $query_args Parameters supplied by the user.
1234	* @return string
1235	*/
1236	protected function get_excluded_variations( $query_args ) {
1237	return $this->get_filtered_ids( $query_args, 'variation_excludes' );
1238	}
1239
1240	/**
1241	* Returns an array of ids of disallowed products, based on query arguments from the user.
1242	*
1243	* @param array $query_args Parameters supplied by the user.
1244	* @return array
1245	*/
1246	protected function get_excluded_products_array( $query_args ) {
1247	$excluded_products = array();
1248	$operator = $this->get_match_operator( $query_args );
1249
1250	if ( isset( $query_args['category_excludes'] ) && is_array( $query_args['category_excludes'] ) && count( $query_args['category_excludes'] ) > 0 ) {
1251	$excluded_products = $this->get_products_by_cat_ids( $query_args['category_excludes'] );
1252	}
1253
1254	if ( isset( $query_args['product_excludes'] ) && is_array( $query_args['product_excludes'] ) && count( $query_args['product_excludes'] ) > 0 ) {
1255	$excluded_products = array_merge( $excluded_products, $query_args['product_excludes'] );
1256	}
1257
1258	return $excluded_products;
1259	}
1260
1261	/**
1262	* Returns comma separated ids of excluded products, based on query arguments from the user.
1263	*
1264	* @param array $query_args Parameters supplied by the user.
1265	* @return string
1266	*/
1267	protected function get_excluded_products( $query_args ) {
1268	$excluded_products = $this->get_excluded_products_array( $query_args );
1269	return implode( ',', $excluded_products );
1270	}
1271
1272	/**
1273	* Returns comma separated ids of included categories, based on query arguments from the user.
1274	*
1275	* @param array $query_args Parameters supplied by the user.
1276	* @return string
1277	*/
1278	protected function get_included_categories( $query_args ) {
1279	return $this->get_filtered_ids( $query_args, 'category_includes' );
1280	}
1281
1282	/**
1283	* Returns comma separated ids of included coupons, based on query arguments from the user.
1284	*
1285	* @param array $query_args Parameters supplied by the user.
1286	* @param string $field Field name in the parameter list.
1287	* @return string
1288	*/
1289	protected function get_included_coupons( $query_args, $field = 'coupon_includes' ) {
1290	return $this->get_filtered_ids( $query_args, $field );
1291	}
1292
1293	/**
1294	* Returns comma separated ids of excluded coupons, based on query arguments from the user.
1295	*
1296	* @param array $query_args Parameters supplied by the user.
1297	* @return string
1298	*/
1299	protected function get_excluded_coupons( $query_args ) {
1300	return $this->get_filtered_ids( $query_args, 'coupon_excludes' );
1301	}
1302
1303	/**
1304	* Returns comma separated ids of included orders, based on query arguments from the user.
1305	*
1306	* @param array $query_args Parameters supplied by the user.
1307	* @return string
1308	*/
1309	protected function get_included_orders( $query_args ) {
1310	return $this->get_filtered_ids( $query_args, 'order_includes' );
1311	}
1312
1313	/**
1314	* Returns comma separated ids of excluded orders, based on query arguments from the user.
1315	*
1316	* @param array $query_args Parameters supplied by the user.
1317	* @return string
1318	*/
1319	protected function get_excluded_orders( $query_args ) {
1320	return $this->get_filtered_ids( $query_args, 'order_excludes' );
1321	}
1322
1323	/**
1324	* Returns comma separated ids of included users, based on query arguments from the user.
1325	*
1326	* @param array $query_args Parameters supplied by the user.
1327	* @return string
1328	*/
1329	protected function get_included_users( $query_args ) {
1330	return $this->get_filtered_ids( $query_args, 'user_includes' );
1331	}
1332
1333	/**
1334	* Returns comma separated ids of excluded users, based on query arguments from the user.
1335	*
1336	* @param array $query_args Parameters supplied by the user.
1337	* @return string
1338	*/
1339	protected function get_excluded_users( $query_args ) {
1340	return $this->get_filtered_ids( $query_args, 'user_excludes' );
1341	}
1342
1343	/**
1344	* Returns order status subquery to be used in WHERE SQL query, based on query arguments from the user.
1345	*
1346	* @param array $query_args Parameters supplied by the user.
1347	* @param string $operator AND or OR, based on match query argument.
1348	* @return string
1349	*/
1350	protected function get_status_subquery( $query_args, $operator = 'AND' ) {
1351	global $wpdb;
1352
1353	$subqueries = array();
1354	$excluded_statuses = array();
1355	if ( isset( $query_args['status_is'] ) && is_array( $query_args['status_is'] ) && count( $query_args['status_is'] ) > 0 ) {
1356	$allowed_statuses = array_map( array( $this, 'normalize_order_status' ), esc_sql( $query_args['status_is'] ) );
1357	if ( $allowed_statuses ) {
1358	$subqueries[] = "{$wpdb->prefix}wc_order_stats.status IN ( '" . implode( "','", $allowed_statuses ) . "' )";
1359	}
1360	}
1361
1362	if ( isset( $query_args['status_is_not'] ) && is_array( $query_args['status_is_not'] ) && count( $query_args['status_is_not'] ) > 0 ) {
1363	$excluded_statuses = array_map( array( $this, 'normalize_order_status' ), $query_args['status_is_not'] );
1364	}
1365
1366	if ( ( ! isset( $query_args['status_is'] ) \|\| empty( $query_args['status_is'] ) )
1367	&& ( ! isset( $query_args['status_is_not'] ) \|\| empty( $query_args['status_is_not'] ) )
1368	) {
1369	$excluded_statuses = array_map( array( $this, 'normalize_order_status' ), $this->get_excluded_report_order_statuses() );
1370	}
1371
1372	if ( $excluded_statuses ) {
1373	$subqueries[] = "{$wpdb->prefix}wc_order_stats.status NOT IN ( '" . implode( "','", $excluded_statuses ) . "' )";
1374	}
1375
1376	return implode( " $operator ", $subqueries );
1377	}
1378
1379	/**
1380	* Add order status SQL clauses if included in query.
1381	*
1382	* @param array $query_args Parameters supplied by the user.
1383	* @param string $table_name Database table name.
1384	* @param SqlQuery $sql_query Query object.
1385	*/
1386	protected function add_order_status_clause( $query_args, $table_name, &$sql_query ) {
1387	global $wpdb;
1388	$order_status_filter = $this->get_status_subquery( $query_args );
1389	if ( $order_status_filter ) {
1390	$sql_query->add_sql_clause( 'join', "JOIN {$wpdb->prefix}wc_order_stats ON {$table_name}.order_id = {$wpdb->prefix}wc_order_stats.order_id" );
1391	$sql_query->add_sql_clause( 'where', "AND ( {$order_status_filter} )" );
1392	}
1393	}
1394
1395	/**
1396	* Add order by SQL clause if included in query.
1397	*
1398	* @param array $query_args Parameters supplied by the user.
1399	* @param SqlQuery $sql_query Query object.
1400	* @return string Order by clause.
1401	*/
1402	protected function add_order_by_clause( $query_args, &$sql_query ) {
1403	$order_by_clause = '';
1404
1405	$sql_query->clear_sql_clause( array( 'order_by' ) );
1406	if ( isset( $query_args['orderby'] ) ) {
1407	$order_by_clause = $this->normalize_order_by( esc_sql( $query_args['orderby'] ) );
1408	$sql_query->add_sql_clause( 'order_by', $order_by_clause );
1409	}
1410
1411	// Return ORDER BY clause to allow adding the sort field(s) to query via a JOIN.
1412	return $order_by_clause;
1413	}
1414
1415	/**
1416	* Add order by order SQL clause.
1417	*
1418	* @param array $query_args Parameters supplied by the user.
1419	* @param SqlQuery $sql_query Query object.
1420	*/
1421	protected function add_orderby_order_clause( $query_args, &$sql_query ) {
1422	if ( isset( $query_args['order'] ) ) {
1423	$sql_query->add_sql_clause( 'order_by', esc_sql( $query_args['order'] ) );
1424	} else {
1425	$sql_query->add_sql_clause( 'order_by', 'DESC' );
1426	}
1427	}
1428
1429	/**
1430	* Returns customer subquery to be used in WHERE SQL query, based on query arguments from the user.
1431	*
1432	* @param array $query_args Parameters supplied by the user.
1433	* @return string
1434	*/
1435	protected function get_customer_subquery( $query_args ) {
1436	global $wpdb;
1437
1438	$customer_filter = '';
1439	if ( isset( $query_args['customer_type'] ) ) {
1440	if ( 'new' === strtolower( $query_args['customer_type'] ) ) {
1441	$customer_filter = " {$wpdb->prefix}wc_order_stats.returning_customer = 0";
1442	} elseif ( 'returning' === strtolower( $query_args['customer_type'] ) ) {
1443	$customer_filter = " {$wpdb->prefix}wc_order_stats.returning_customer = 1";
1444	}
1445	}
1446
1447	return $customer_filter;
1448	}
1449
1450	/**
1451	* Returns product attribute subquery elements used in JOIN and WHERE clauses,
1452	* based on query arguments from the user.
1453	*
1454	* @param array $query_args Parameters supplied by the user.
1455	* @return array
1456	*/
1457	protected function get_attribute_subqueries( $query_args ) {
1458	global $wpdb;
1459
1460	$sql_clauses = array(
1461	'join' => array(),
1462	'where' => array(),
1463	);
1464	$match_operator = $this->get_match_operator( $query_args );
1465	$post_meta_comparators = array(
1466	'=' => 'attribute_is',
1467	'!=' => 'attribute_is_not',
1468	);
1469
1470	foreach ( $post_meta_comparators as $comparator => $arg ) {
1471	if ( ! isset( $query_args[ $arg ] ) \|\| ! is_array( $query_args[ $arg ] ) ) {
1472	continue;
1473	}
1474	foreach ( $query_args[ $arg ] as $attribute_term ) {
1475	// We expect tuples.
1476	if ( ! is_array( $attribute_term ) \|\| 2 !== count( $attribute_term ) ) {
1477	continue;
1478	}
1479
1480	$term_id = '';
1481	// If the tuple is numeric, assume these are IDs.
1482	if ( is_numeric( $attribute_term[0] ) && is_numeric( $attribute_term[1] ) ) {
1483	$attribute_id = intval( $attribute_term[0] );
1484	$term_id = intval( $attribute_term[1] );
1485
1486	// Invalid IDs.
1487	if ( 0 === $attribute_id \|\| 0 === $term_id ) {
1488	continue;
1489	}
1490
1491	// @todo: Use wc_get_attribute () instead ?
1492	$attr_taxonomy = wc_attribute_taxonomy_name_by_id( $attribute_id );
1493	// Invalid attribute ID.
1494	if ( empty( $attr_taxonomy ) ) {
1495	continue;
1496	}
1497
1498	$attr_term = get_term_by( 'id', $term_id, $attr_taxonomy );
1499	// Invalid term ID.
1500	if ( false === $attr_term ) {
1501	continue;
1502	}
1503
1504	$meta_key = sanitize_title( $attr_taxonomy );
1505	$meta_value = $attr_term->slug;
1506	} else {
1507	// Assume these are a custom attribute slug/value pair.
1508	$meta_key = esc_sql( $attribute_term[0] );
1509	$meta_value = esc_sql( $attribute_term[1] );
1510	$attr_term = get_term_by( 'slug', $meta_value, $meta_key );
1511	if ( false !== $attr_term ) {
1512	$term_id = $attr_term->term_id;
1513	}
1514	}
1515
1516	$join_alias = 'orderitemmeta1';
1517	$table_to_join_on = "{$wpdb->prefix}wc_order_product_lookup";
1518
1519	if ( empty( $sql_clauses['join'] ) ) {
1520	$sql_clauses['join'][] = "JOIN {$wpdb->prefix}woocommerce_order_items orderitems ON orderitems.order_id = {$table_to_join_on}.order_id";
1521	}
1522
1523	// If we're matching all filters (AND), we'll need multiple JOINs on postmeta.
1524	// If not, just one.
1525	if ( 'AND' === $match_operator \|\| 1 === count( $sql_clauses['join'] ) ) {
1526	$join_idx = count( $sql_clauses['join'] );
1527	$join_alias = 'orderitemmeta' . $join_idx;
1528	$sql_clauses['join'][] = "JOIN {$wpdb->prefix}woocommerce_order_itemmeta as {$join_alias} ON {$join_alias}.order_item_id = {$table_to_join_on}.order_item_id";
1529	}
1530
1531	$in_comparator = '=' === $comparator ? 'in' : 'not in';
1532
1533	// Add subquery for products ordered using attributes not used in variations.
1534	$term_attribute_subquery = "select product_id from {$wpdb->prefix}wc_product_attributes_lookup where is_variation_attribute=0 and term_id = %s";
1535	// phpcs:disable WordPress.DB.PreparedSQL.InterpolatedNotPrepared
1536	// phpcs:disable WordPress.DB.PreparedSQLPlaceholders.ReplacementsWrongNumber
1537	$sql_clauses['where'][] = $wpdb->prepare(
1538	"
1539	( ( {$join_alias}.meta_key = %s AND {$join_alias}.meta_value {$comparator} %s ) or (
1540	{$wpdb->prefix}wc_order_product_lookup.variation_id = 0 and {$wpdb->prefix}wc_order_product_lookup.product_id {$in_comparator} ({$term_attribute_subquery})
1541	) )",
1542	$meta_key,
1543	$meta_value,
1544	$term_id,
1545	);
1546	// phpcs:enable WordPress.DB.PreparedSQL.InterpolatedNotPrepared
1547	// phpcs:enable WordPress.DB.PreparedSQLPlaceholders.ReplacementsWrongNumber
1548	}
1549	}
1550
1551	// If we're matching multiple attributes and all filters (AND), make sure
1552	// we're matching attributes on the same product.
1553	$num_attribute_filters = count( $sql_clauses['join'] );
1554
1555	for ( $i = 2; $i < $num_attribute_filters; $i++ ) {
1556	$join_alias = 'orderitemmeta' . $i;
1557	$sql_clauses['join'][] = "AND orderitemmeta1.order_item_id = {$join_alias}.order_item_id";
1558	}
1559
1560	return $sql_clauses;
1561	}
1562
1563	/**
1564	* Returns logic operator for WHERE subclause based on 'match' query argument.
1565	*
1566	* @param array $query_args Parameters supplied by the user.
1567	* @return string
1568	*/
1569	protected function get_match_operator( $query_args ) {
1570	$operator = 'AND';
1571
1572	if ( ! isset( $query_args['match'] ) ) {
1573	return $operator;
1574	}
1575
1576	if ( 'all' === strtolower( $query_args['match'] ) ) {
1577	$operator = 'AND';
1578	} elseif ( 'any' === strtolower( $query_args['match'] ) ) {
1579	$operator = 'OR';
1580	}
1581	return $operator;
1582	}
1583
1584	/**
1585	* Returns filtered comma separated ids, based on query arguments from the user.
1586	*
1587	* @param array $query_args Parameters supplied by the user.
1588	* @param string $field Query field to filter.
1589	* @param string $separator Field separator.
1590	* @return string
1591	*/
1592	protected function get_filtered_ids( $query_args, $field, $separator = ',' ) {
1593	global $wpdb;
1594
1595	$ids_str = '';
1596	$ids = isset( $query_args[ $field ] ) && is_array( $query_args[ $field ] ) ? $query_args[ $field ] : array();
1597
1598	/**
1599	* Filter the IDs before retrieving report data.
1600	*
1601	* Allows filtering of the objects included or excluded from reports.
1602	*
1603	* @param array $ids List of object Ids.
1604	* @param array $query_args The original arguments for the request.
1605	* @param string $field The object type.
1606	* @param string $context The data store context.
1607	*/
1608	$ids = apply_filters( 'woocommerce_analytics_' . $field, $ids, $query_args, $field, $this->context );
1609
1610	if ( ! empty( $ids ) ) {
1611	$placeholders = implode( $separator, array_fill( 0, count( $ids ), '%d' ) );
1612	/* phpcs:disable WordPress.DB.PreparedSQL.InterpolatedNotPrepared */
1613	$ids_str = $wpdb->prepare( "{$placeholders}", $ids );
1614	/* phpcs:enable */
1615	}
1616	return $ids_str;
1617	}
1618
1619	/**
1620	* Assign report columns once full table name has been assigned.
1621	*/
1622	protected function assign_report_columns() {}
1623	}
1624