woocommerce/plugins/woocommerce-admin/includes/data-stores/class-wc-admin-reports-data...

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<?php
/**
* WC_Admin_Reports_Data_Store class file.
*
* @package WooCommerce Admin/Classes
*/
if ( ! defined( 'ABSPATH' ) ) {
exit;
}
/**
* WC_Admin_Reports_Data_Store: Common parent for custom report data stores.
*/
class WC_Admin_Reports_Data_Store {
/**
* Cache group for the reports.
*
* @var string
*/
protected $cache_group = 'reports';
/**
* Time out for the cache.
*
* @var int
*/
protected $cache_timeout = 3600;
/**
* Table used as a data store for this report.
*
* @var string
*/
const TABLE_NAME = '';
/**
* Mapping columns to data type to return correct response types.
*
* @var array
*/
protected $column_types = array();
/**
* SQL columns to select in the db query.
*
* @var array
*/
protected $report_columns = array();
// TODO: this does not really belong here, maybe factor out the comparison as separate class?
/**
* Order by property, used in the cmp function.
*
* @var string
*/
private $order_by = '';
/**
* Order property, used in the cmp function.
*
* @var string
*/
private $order = '';
/**
* 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 interval_cmp( $a, $b ) {
if ( '' === $this->order_by || '' === $this->order ) {
return 0;
// TODO: should return WP_Error here perhaps?
}
if ( $a[ $this->order_by ] === $b[ $this->order_by ] ) {
return 0;
} elseif ( $a[ $this->order_by ] > $b[ $this->order_by ] ) {
return strtolower( $this->order ) === 'desc' ? -1 : 1;
} elseif ( $a[ $this->order_by ] < $b[ $this->order_by ] ) {
return strtolower( $this->order ) === 'desc' ? 1 : -1;
}
}
/**
* Sorts intervals according to user's request.
*
* They are pre-sorted in SQL, but after adding gaps, they need to be sorted including the added ones.
*
* @param stdClass $data Data object, must contain an array under $data->intervals.
* @param string $sort_by Ordering property.
* @param string $direction DESC/ASC.
*/
protected function sort_intervals( &$data, $sort_by, $direction ) {
$this->order_by = $this->normalize_order_by( $sort_by );
$this->order = $direction;
usort( $data->intervals, array( $this, 'interval_cmp' ) );
}
/**
* Fills in interval gaps from DB with 0-filled objects.
*
* @param array $db_intervals Array of all intervals present in the db.
* @param DateTime $datetime_start Start date.
* @param DateTime $datetime_end End date.
* @param string $time_interval Time interval, e.g. day, week, month.
* @param stdClass $data Data with SQL extracted intervals.
* @return stdClass
*/
protected function fill_in_missing_intervals( $db_intervals, $datetime_start, $datetime_end, $time_interval, &$data ) {
// TODO: this is ugly and messy.
// At this point, we don't know when we can stop iterating, as the ordering can be based on any value.
$end_datetime = new DateTime( $datetime_end );
$time_ids = array_flip( wp_list_pluck( $data->intervals, 'time_interval' ) );
$db_intervals = array_flip( $db_intervals );
$datetime = new DateTime( $datetime_start );
// Totals object used to get all needed properties.
$totals_arr = get_object_vars( $data->totals );
foreach ( $totals_arr as $key => $val ) {
$totals_arr[ $key ] = 0;
}
while ( $datetime <= $end_datetime ) {
$next_start = WC_Admin_Reports_Interval::iterate( $datetime, $time_interval );
$time_id = WC_Admin_Reports_Interval::time_interval_id( $time_interval, $datetime );
// Either create fill-zero interval or use data from db.
if ( $next_start > $end_datetime ) {
$interval_end = $end_datetime->format( 'Y-m-d H:i:s' );
} else {
$prev_end_timestamp = (int) $next_start->format( 'U' ) - 1;
$prev_end = new DateTime();
$prev_end->setTimestamp( $prev_end_timestamp );
$interval_end = $prev_end->format( 'Y-m-d H:i:s' );
}
if ( array_key_exists( $time_id, $time_ids ) ) {
// For interval present in the db for this time frame, just fill in dates.
$record = &$data->intervals[ $time_ids[ $time_id ] ];
$record['date_start'] = $datetime->format( 'Y-m-d H:i:s' );
$record['date_end'] = $interval_end;
} elseif ( array_key_exists( $time_id, $db_intervals ) ) {
// For intervals present in the db outside of this time frame, do nothing.
} else {
// For intervals not present in the db, fabricate it.
$record_arr = array();
$record_arr['time_interval'] = $time_id;
$record_arr['date_start'] = $datetime->format( 'Y-m-d H:i:s' );
$record_arr['date_end'] = $interval_end;
$data->intervals[] = array_merge( $record_arr, $totals_arr );
}
$datetime = $next_start;
}
return $data;
}
/**
* Removes extra records from intervals so that only requested number of records get returned.
*
* @param stdClass $data Data from whose intervals the records get removed.
* @param int $page_no Offset requested by the user.
* @param int $items_per_page Number of records requested by the user.
* @param int $db_interval_count
* @param int $expected_interval_count
* @param string $order_by
*/
protected function remove_extra_records( &$data, $page_no, $items_per_page, $db_interval_count, $expected_interval_count, $order_by ) {
if ( 'date' === strtolower( $order_by ) ) {
$offset = 0;
} else {
$offset = ( $page_no - 1 ) * $items_per_page - $db_interval_count;
$offset = $offset < 0 ? 0 : $offset;
}
$count = $expected_interval_count - ( $page_no - 1 ) * $items_per_page;
if ( $count < 0 ) {
$count = 0;
} elseif ( $count > $items_per_page ) {
$count = $items_per_page;
}
$data->intervals = array_slice( $data->intervals, $offset, $count );
}
/**
* Updates the LIMIT query part for Intervals query of the report.
*
* If there are less records in the database than time intervals, then we need to remap offset in SQL query
* to fetch correct records.
*
* @param array $intervals_query Array with clauses for the Intervals SQL query.
* @param int $db_records Number of records in the db for requested time period.
*/
protected function update_intervals_sql_params( &$intervals_query, &$query_args, $db_interval_count, $expected_interval_count ) {
if ( $db_interval_count === $expected_interval_count ) {
return;
}
if ( 'date' === strtolower( $query_args['orderby'] ) ) {
// page X in request translates to slightly different dates in the db, in case some
// records are missing from the db.
$start_iteration = 0;
$end_iteration = 0;
if ( 'asc' === strtolower( $query_args['order'] ) ) {
// ORDER BY date ASC.
$new_start_date = new DateTime( $query_args['after'] );
$intervals_to_skip = ( $query_args['page'] - 1 ) * $intervals_query['per_page'];
$latest_end_date = new DateTime( $query_args['before'] );
for ( $i = 0; $i < $intervals_to_skip; $i++ ) {
if ( $new_start_date > $latest_end_date ) {
$new_start_date = $latest_end_date;
$start_iteration = 0;
break;
}
$new_start_date = WC_Admin_Reports_Interval::iterate( $new_start_date, $query_args['interval'] );
$start_iteration ++;
}
$new_end_date = clone $new_start_date;
for ( $i = 0; $i < $intervals_query['per_page']; $i++ ) {
if ( $new_end_date > $latest_end_date ) {
$new_end_date = $latest_end_date;
$end_iteration = 0;
break;
}
$new_end_date = WC_Admin_Reports_Interval::iterate( $new_end_date, $query_args['interval'] );
$end_iteration ++;
}
if ( $end_iteration ) {
$new_end_date_timestamp = (int) $new_end_date->format( 'U' ) - 1;
$new_end_date->setTimestamp( $new_end_date_timestamp );
}
} else {
// ORDER BY date DESC.
$new_end_date = new DateTime( $query_args['before'] );
$intervals_to_skip = ( $query_args['page'] - 1 ) * $intervals_query['per_page'];
$earliest_start_date = new DateTime( $query_args['after'] );
for ( $i = 0; $i < $intervals_to_skip; $i++ ) {
if ( $new_end_date < $earliest_start_date ) {
$new_end_date = $earliest_start_date;
$end_iteration = 0;
break;
}
$new_end_date = WC_Admin_Reports_Interval::iterate( $new_end_date, $query_args['interval'], true );
$end_iteration ++;
}
$new_start_date = clone $new_end_date;
for ( $i = 0; $i < $intervals_query['per_page']; $i++ ) {
if ( $new_start_date < $earliest_start_date ) {
$new_start_date = $earliest_start_date;
$start_iteration = 0;
break;
}
$new_start_date = WC_Admin_Reports_Interval::iterate( $new_start_date, $query_args['interval'], true );
$start_iteration ++;
}
if ( $start_iteration ) {
// TODO: is this correct? should it only be added if iterate runs? other two iterate instances, too?
$new_start_date_timestamp = (int) $new_start_date->format( 'U' ) + 1;
$new_start_date->setTimestamp( $new_start_date_timestamp );
}
}
$query_args['adj_after'] = $new_start_date->format( WC_Admin_Reports_Interval::$iso_datetime_format );
$query_args['adj_before'] = $new_end_date->format( WC_Admin_Reports_Interval::$iso_datetime_format );
$intervals_query['where_clause'] = '';
$intervals_query['where_clause'] .= " AND date_created <= '{$query_args['adj_before']}'";
$intervals_query['where_clause'] .= " AND date_created >= '{$query_args['adj_after']}'";
$intervals_query['limit'] = 'LIMIT 0,' . $intervals_query['per_page'];
} else {
if ( 'asc' === $query_args['order'] ) {
$offset = ( ( $query_args['page'] - 1 ) * $intervals_query['per_page'] ) - ( $expected_interval_count - $db_interval_count );
$offset = $offset < 0 ? 0 : $offset;
$count = $query_args['page'] * $intervals_query['per_page'] - ( $expected_interval_count - $db_interval_count );
if ( $count < 0 ) {
$count = 0;
} elseif ( $count > $intervals_query['per_page'] ) {
$count = $intervals_query['per_page'];
}
$intervals_query['limit'] = 'LIMIT ' . $offset . ',' . $count;
}
// Otherwise no change in limit clause.
$query_args['adj_after'] = $query_args['after'];
$query_args['adj_before'] = $query_args['before'];
}
}
/**
* Returns string to be used as cache key for the data.
*
* @param array $params Query parameters.
* @return string
*/
protected function get_cache_key( $params ) {
// TODO: this is not working in PHP 5.2 (but revenue class has static methods, so it cannot use object property).
return 'woocommerce_' . $this::TABLE_NAME . '_' . md5( wp_json_encode( $params ) );
}
/**
* Casts strings returned from the database to appropriate data types for output.
*
* @param array $array Associative array of values extracted from the database.
* @return array|WP_Error
*/
protected function cast_numbers( $array ) {
$retyped_array = array();
$column_types = apply_filters( 'woocommerce_rest_reports_column_types', $this->column_types, $array );
foreach ( $array as $column_name => $value ) {
if ( isset( $column_types[ $column_name ] ) ) {
$retyped_array[ $column_name ] = $column_types[ $column_name ]( $value );
} else {
$retyped_array[ $column_name ] = $value;
}
}
return $retyped_array;
}
/**
* Returns a list of columns selected by the query_args formatted as a comma separated string.
*
* @param array $query_args User-supplied options.
* @return string
*/
protected function selected_columns( $query_args ) {
$selections = $this->report_columns;
if ( isset( $query_args['fields'] ) && is_array( $query_args['fields'] ) ) {
$keep = array();
foreach ( $query_args['fields'] as $field ) {
if ( isset( $selections[ $field ] ) ) {
$keep[ $field ] = $selections[ $field ];
}
}
$selections = implode( ', ', $keep );
} else {
$selections = implode( ', ', $selections );
}
return $selections;
}
/**
* Get the order statuses used when calculating reports.
*
* @return array
*/
protected static function get_report_order_statuses() {
return apply_filters( 'woocommerce_reports_order_statuses', array( 'completed', 'processing', 'on-hold' ) );
}
/**
* Maps order status provided by the user to the one used in the database.
*
* @param string $status Order status.
* @return string
*/
protected function normalize_order_status( $status ) {
$status = trim( $status );
return 'wc-' . $status;
}
/**
* Normalizes order_by clause to match to SQL query.
*
* @param string $order_by Order by option requeste by user.
* @return string
*/
protected function normalize_order_by( $order_by ) {
if ( 'date' === $order_by ) {
return 'time_interval';
}
return $order_by;
}
/**
* Updates start and end dates for intervals so that they represent intervals' borders, not times when data in db were recorded.
*
* E.g. if there are db records for only Tuesday and Thursday this week, the actual week interval is [Mon, Sun], not [Tue, Thu].
*
* @param DateTime $datetime_start Start date.
* @param DateTime $datetime_end End date.
* @param string $time_interval Time interval, e.g. day, week, month.
* @param array $intervals Array of intervals extracted from SQL db.
*/
protected function update_interval_boundary_dates( $datetime_start, $datetime_end, $time_interval, &$intervals ) {
foreach ( $intervals as $key => $interval ) {
$datetime = new DateTime( $interval['datetime_anchor'] );
$prev_start = WC_Admin_Reports_Interval::iterate( $datetime, $time_interval, true );
// TODO: not sure if the +1/-1 here are correct, especially as they are applied before the ?: below.
$prev_start_timestamp = (int) $prev_start->format( 'U' ) + 1;
$prev_start->setTimestamp( $prev_start_timestamp );
if ( $datetime_start ) {
$start_datetime = new DateTime( $datetime_start );
$intervals[ $key ]['date_start'] = ( $prev_start < $start_datetime ? $start_datetime : $prev_start )->format( 'Y-m-d H:i:s' );
} else {
$intervals[ $key ]['date_start'] = $prev_start->format( 'Y-m-d H:i:s' );
}
$next_end = WC_Admin_Reports_Interval::iterate( $datetime, $time_interval );
$next_end_timestamp = (int) $next_end->format( 'U' ) - 1;
$next_end->setTimestamp( $next_end_timestamp );
if ( $datetime_end ) {
$end_datetime = new DateTime( $datetime_end );
$intervals[ $key ]['date_end'] = ( $next_end > $end_datetime ? $end_datetime : $next_end )->format( 'Y-m-d H:i:s' );
} else {
$intervals[ $key ]['date_end'] = $next_end->format( 'Y-m-d H:i:s' );
}
$intervals[ $key ]['interval'] = $time_interval;
}
}
/**
* Change structure of intervals to form a correct response.
*
* @param array $intervals Time interval, e.g. day, week, month.
*/
protected function create_interval_subtotals( &$intervals ) {
foreach ( $intervals as $key => $interval ) {
// Move intervals result to subtotals object.
$intervals[ $key ] = array(
'interval' => $interval['time_interval'],
'date_start' => $interval['date_start'],
'date_start_gmt' => $interval['date_start'],
'date_end' => $interval['date_end'],
'date_end_gmt' => $interval['date_end'],
);
unset( $interval['interval'] );
unset( $interval['date_start'] );
unset( $interval['date_end'] );
unset( $interval['datetime_anchor'] );
unset( $interval['time_interval'] );
$intervals[ $key ]['subtotals'] = (object) $this->cast_numbers( $interval );
}
}
/**
* Fills WHERE clause of SQL request for 'Totals' section of data response based on user supplied parameters.
*
* @param array $query_args Parameters supplied by the user.
* @return array
*/
protected function get_time_period_sql_params( $query_args ) {
$sql_query = array(
'from_clause' => '',
'where_clause' => '',
);
if ( isset( $query_args['before'] ) && '' !== $query_args['before'] ) {
$datetime = new DateTime( $query_args['before'] );
$datetime_str = $datetime->format( WC_Admin_Reports_Interval::$sql_datetime_format );
$sql_query['where_clause'] .= " AND date_created <= '$datetime_str'";
}
if ( isset( $query_args['after'] ) && '' !== $query_args['after'] ) {
$datetime = new DateTime( $query_args['after'] );
$datetime_str = $datetime->format( WC_Admin_Reports_Interval::$sql_datetime_format );
$sql_query['where_clause'] .= " AND date_created >= '$datetime_str'";
}
return $sql_query;
}
/**
* Fills LIMIT clause of SQL request based on user supplied parameters.
*
* @param array $query_args Parameters supplied by the user.
* @return array
*/
protected function get_limit_sql_params( $query_args ) {
$sql_query['per_page'] = get_option( 'posts_per_page' );
if ( isset( $query_args['per_page'] ) && is_numeric( $query_args['per_page'] ) ) {
$sql_query['per_page'] = (int) $query_args['per_page'];
}
$sql_query['offset'] = 0;
if ( isset( $query_args['page'] ) ) {
$sql_query['offset'] = ( (int) $query_args['page'] - 1 ) * $sql_query['per_page'];
}
$sql_query['limit'] = "LIMIT {$sql_query['offset']}, {$sql_query['per_page']}";
return $sql_query;
}
/**
* Fills ORDER BY clause of SQL request based on user supplied parameters.
*
* @param array $query_args Parameters supplied by the user.
* @return array
*/
protected function get_order_by_sql_params( $query_args ) {
$sql_query['order_by_clause'] = '';
if ( isset( $query_args['orderby'] ) ) {
$sql_query['order_by_clause'] = $this->normalize_order_by( $query_args['orderby'] );
}
if ( isset( $query_args['order'] ) ) {
$sql_query['order_by_clause'] .= ' ' . $query_args['order'];
} else {
$sql_query['order_by_clause'] .= ' DESC';
}
return $sql_query;
}
/**
* Fills FROM and WHERE clauses of SQL request for 'Intervals' section of data response based on user supplied parameters.
*
* @param array $query_args Parameters supplied by the user.
* @return array
*/
protected function get_intervals_sql_params( $query_args ) {
$intervals_query = array(
'from_clause' => '',
'where_clause' => '',
);
$intervals_query = array_merge( $intervals_query, $this->get_time_period_sql_params( $query_args ) );
if ( isset( $query_args['interval'] ) && '' !== $query_args['interval'] ) {
$interval = $query_args['interval'];
$intervals_query['select_clause'] = WC_Admin_Reports_Interval::mysql_datetime_format( $interval );
}
$intervals_query = array_merge( $intervals_query, $this->get_limit_sql_params( $query_args ) );
$intervals_query = array_merge( $intervals_query, $this->get_order_by_sql_params( $query_args ) );
return $intervals_query;
}
/**
* Returns an array of products belonging to given categories.
*
* @param array $categories List of categories IDs.
* @return array|stdClass
*/
protected function get_products_by_cat_ids( $categories ) {
$product_categories = get_categories( array(
'hide_empty' => 0,
'taxonomy' => 'product_cat',
) );
$cat_slugs = array();
$categories = array_flip( $categories );
foreach ( $product_categories as $product_cat ) {
if ( key_exists( $product_cat->cat_ID, $categories ) ) {
$cat_slugs[] = $product_cat->slug;
}
}
$args = array(
'category' => $cat_slugs,
'limit' => -1,
);
return wc_get_products( $args );
}
/**
* Returns ids of allowed products, based on query arguments from the user.
*
* @param array $query_args Parameters supplied by the user.
* @return array
*/
protected function get_allowed_products( $query_args ) {
$allowed_products = array();
if ( isset( $query_args['categories'] ) && is_array( $query_args['categories'] ) && count( $query_args['categories'] ) > 0 ) {
$allowed_products = $this->get_products_by_cat_ids( $query_args['categories'] );
$allowed_products = wc_list_pluck( $allowed_products, 'get_id' );
}
if ( isset( $query_args['products'] ) && is_array( $query_args['products'] ) && count( $query_args['products'] ) > 0 ) {
if ( count( $allowed_products ) > 0 ) {
$allowed_products = array_intersect( $allowed_products, $query_args['products'] );
} else {
$allowed_products = $query_args['products'];
}
}
return $allowed_products;
}
}