woocommerce/includes/log-handlers/class-wc-log-handler-db.php

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<?php
/**
* Class WC_Log_Handler_DB file.
*
* @package WooCommerce\Log Handlers
*/
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if ( ! defined( 'ABSPATH' ) ) {
exit; // Exit if accessed directly.
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}
/**
* Handles log entries by writing to database.
*
* @class WC_Log_Handler_DB
* @version 1.0.0
* @package WooCommerce/Classes/Log_Handlers
*/
class WC_Log_Handler_DB extends WC_Log_Handler {
/**
* Handle a log entry.
*
* @param int $timestamp Log timestamp.
* @param string $level emergency|alert|critical|error|warning|notice|info|debug.
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* @param string $message Log message.
* @param array $context {
* Additional information for log handlers.
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*
* @type string $source Optional. Source will be available in log table.
* If no source is provided, attempt to provide sensible default.
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* }
*
* @see WC_Log_Handler_DB::get_log_source() for default source.
*
* @return bool False if value was not handled and true if value was handled.
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*/
public function handle( $timestamp, $level, $message, $context ) {
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if ( isset( $context['source'] ) && $context['source'] ) {
$source = $context['source'];
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} else {
$source = $this->get_log_source();
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}
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return $this->add( $timestamp, $level, $message, $source, $context );
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}
/**
* Add a log entry to chosen file.
*
* @param int $timestamp Log timestamp.
* @param string $level emergency|alert|critical|error|warning|notice|info|debug.
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* @param string $message Log message.
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* @param string $source Log source. Useful for filtering and sorting.
* @param array $context Context will be serialized and stored in database.
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*
* @return bool True if write was successful.
*/
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protected static function add( $timestamp, $level, $message, $source, $context ) {
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global $wpdb;
$insert = array(
'timestamp' => date( 'Y-m-d H:i:s', $timestamp ),
'level' => WC_Log_Levels::get_level_severity( $level ),
'message' => $message,
'source' => $source,
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);
$format = array(
'%s',
'%d',
'%s',
'%s',
'%s', // possible serialized context.
);
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if ( ! empty( $context ) ) {
$insert['context'] = serialize( $context ); // @codingStandardsIgnoreLine.
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}
return false !== $wpdb->insert( "{$wpdb->prefix}woocommerce_log", $insert, $format );
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}
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/**
* Clear all logs from the DB.
*
* @return bool True if flush was successful.
*/
public static function flush() {
global $wpdb;
return $wpdb->query( "TRUNCATE TABLE {$wpdb->prefix}woocommerce_log" );
}
/**
* Clear entries for a chosen handle/source.
*
* @param string $source Log source.
* @return bool
*/
public function clear( $source ) {
global $wpdb;
return $wpdb->query(
$wpdb->prepare(
"DELETE FROM {$wpdb->prefix}woocommerce_log WHERE source = %s",
$source
)
);
}
/**
* Delete selected logs from DB.
*
* @param int|string|array $log_ids Log ID or array of Log IDs to be deleted.
*
* @return bool
*/
public static function delete( $log_ids ) {
global $wpdb;
if ( ! is_array( $log_ids ) ) {
$log_ids = array( $log_ids );
}
$format = array_fill( 0, count( $log_ids ), '%d' );
$query_in = '(' . implode( ',', $format ) . ')';
return $wpdb->query( "DELETE FROM {$wpdb->prefix}woocommerce_log WHERE log_id IN {$query_in}" ); // @codingStandardsIgnoreLine.
}
/**
* Delete all logs older than a defined timestamp.
*
* @since 3.4.0
* @param integer $timestamp Timestamp to delete logs before.
*/
public static function delete_logs_before_timestamp( $timestamp = 0 ) {
if ( ! $timestamp ) {
return;
}
global $wpdb;
$wpdb->query(
$wpdb->prepare(
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"DELETE FROM {$wpdb->prefix}woocommerce_log WHERE timestamp < %s",
date( 'Y-m-d H:i:s', $timestamp )
)
);
}
/**
* Get appropriate source based on file name.
*
* Try to provide an appropriate source in case none is provided.
*
* @return string Text to use as log source. "" (empty string) if none is found.
*/
protected static function get_log_source() {
static $ignore_files = array( 'class-wc-log-handler-db', 'class-wc-logger' );
/**
* PHP < 5.3.6 correct behavior
*
* @see http://php.net/manual/en/function.debug-backtrace.php#refsect1-function.debug-backtrace-parameters
*/
if ( defined( 'DEBUG_BACKTRACE_IGNORE_ARGS' ) ) {
$debug_backtrace_arg = DEBUG_BACKTRACE_IGNORE_ARGS; // phpcs:ignore PHPCompatibility.PHP.NewConstants.debug_backtrace_ignore_argsFound
} else {
$debug_backtrace_arg = false;
}
$trace = debug_backtrace( $debug_backtrace_arg ); // @codingStandardsIgnoreLine.
foreach ( $trace as $t ) {
if ( isset( $t['file'] ) ) {
$filename = pathinfo( $t['file'], PATHINFO_FILENAME );
if ( ! in_array( $filename, $ignore_files, true ) ) {
return $filename;
}
}
}
return '';
}
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}