From 4ce038bea3f17a797ac0043f0213ff914cd46443 Mon Sep 17 00:00:00 2001
From: No3x <noex_home@yahoo.de>
Date: Sun, 23 Nov 2014 01:16:44 +0100
Subject: [PATCH] Implemented gh-17 LogRotation.

---
 WPML_LogRotation.php       | 82 ++++++++++++++++++++++++++++++++++++++
 inc/redux/options-init.php |  2 +-
 wp-mail-logging_init.php   |  1 +
 3 files changed, 84 insertions(+), 1 deletion(-)
 create mode 100644 WPML_LogRotation.php

diff --git a/WPML_LogRotation.php b/WPML_LogRotation.php
new file mode 100644
index 00000000..c21e22ec
--- /dev/null
+++ b/WPML_LogRotation.php
@@ -0,0 +1,82 @@
+<?php
+
+/**
+ * Log rotation for database.
+ * @author No3x
+ * @since 1.4
+ */
+class WPML_LogRotation {
+	
+	const WPML_LOGROTATION_SCHEDULE_HOOK = 'LogRotationScheduleHook';
+	const WPML_LOGROTATION_SCHEDULE = 'LogRotationSchedule';
+	
+	public static function init() {
+		add_action( self::WPML_LOGROTATION_SCHEDULE_HOOK , array('WPML_LogRotation', self::WPML_LOGROTATION_SCHEDULE) );
+		new WPML_LogRotation();
+	}
+	
+	public function __construct() {
+		global $wpml_settings;
+		$this->unschedule();
+		if ( $wpml_settings['log-rotation-limit-amout'] == '1' || $wpml_settings['log-rotation-delete-time'] == '1' ) {
+			$this->schedule();
+		} else {
+			$this->unschedule();
+		}
+	}
+	
+	/**
+	 * Schedules an event.
+	 * @since 1.4
+	 */
+	function schedule() {
+		if ( !wp_next_scheduled( self::WPML_LOGROTATION_SCHEDULE_HOOK ) ) {
+			wp_schedule_event( time(), 'hourly', self::WPML_LOGROTATION_SCHEDULE_HOOK );
+		}
+	}
+	
+	/**
+	 * Unschedules an event.
+	 * @since 1.4
+	 */
+	function unschedule() {
+		$timestamp = wp_next_scheduled( self::WPML_LOGROTATION_SCHEDULE_HOOK );
+		wp_unschedule_event( $timestamp, self::WPML_LOGROTATION_SCHEDULE_HOOK );
+	}
+	
+	/**
+	 * Executes log rotation periodically.
+	 * @since 1.4
+	 */
+	static function LogRotationSchedule() {
+		global $wpml_settings, $wpdb;
+		$tableName = WPML_Plugin::getTablename( 'mails' );
+		
+		if ( $wpml_settings['log-rotation-limit-amout'] == '1') {
+			$keep = $wpml_settings['log-rotation-limit-amout-keep'];
+			if ( $keep > 0 ) {
+				$wpdb->query(  
+					"DELETE p
+						FROM 
+	       			$tableName AS p
+	  					JOIN
+	       			( SELECT mail_id 
+	         			FROM $tableName 
+	         		ORDER BY mail_id       
+	           			LIMIT 1 OFFSET $keep
+	       			) AS lim
+	     			ON p.mail_id < lim.mail_id;"
+				);
+			}
+		}
+		
+		if ( $wpml_settings['log-rotation-delete-time'] == '1') {
+			$days = $wpml_settings['log-rotation-delete-time-days'];
+			if ( $days > 0 ) {
+				$wpdb->query( "DELETE FROM $tableName WHERE DATEDIFF(now(), timestamp) >= $days" );
+			}
+		}
+	}
+}
+
+add_action('plugins_loaded', array( 'WPML_LogRotation', 'init' ), 11 );
\ No newline at end of file
diff --git a/inc/redux/options-init.php b/inc/redux/options-init.php
index c42c82f0..74c7785f 100644
--- a/inc/redux/options-init.php
+++ b/inc/redux/options-init.php
@@ -255,7 +255,7 @@ public function setSections() {
                			'id'        => 'can-see-submission-data',
            				'type'      => 'select',
            				'data'      => 'capabilities',
-           				'default' 	=> 'manage_options',
+						'default' 	=> 'manage_options',
            				'title'     => __('Can See Submission data', 'wpml'), 
            				'subtitle'  => __('Select the minimum role.', 'wpml'),
                 			
diff --git a/wp-mail-logging_init.php b/wp-mail-logging_init.php
index 69844009..bd4dd7bc 100644
--- a/wp-mail-logging_init.php
+++ b/wp-mail-logging_init.php
@@ -22,6 +22,7 @@
 function WPML_init($file) {
 	
     require_once('WPML_Plugin.php');
+    require_once('WPML_LogRotation.php');
     require_once(plugin_dir_path( __FILE__ ) . 'inc/redux/admin-init.php');
     
     $aPlugin = new WPML_Plugin();