Fix #310: Refactor, update, test, and rename the converter.php script (…

…#311)

Renamed to tyl-converter.php.

Tested for both supported plugins from which to migrate:
* The SimpleLikes plugin by Euan.
* The Thanks plugin my multiple parties.

tyl-converter.php

@@ -0,0 +1,64 @@
+<?php
+/**
+ * Filename   : tyl-converter.php
+ * Author     : Dark Neo with modifications by Laird.
+ * Description: Imports into the Thank You/Like System plugin the likes of
+ *              either the SimpleLikes[1] plugin or the Thanks[2][3] plugin.
+ *              [1] https://community.mybb.com/mods.php?action=view&pid=24
+ *              [2] https://community.mybb.com/mods.php?action=view&pid=82
+ * Usage      : Install the Thank You/Like System plugin in both the filesystem
+ *              and via the ACP Plugins page, then move this file into your MyBB
+ *              forum's root directory and browse to it. After the conversion
+ *              completes, remove this file from your forum's root directory.
+ * Original Description[3]: Thanks SaeedGh & Thank You MyBB System Converter
+ *              [3] Prior to Laird's mods.
+ */
+
+define('IN_MYBB', 1);
+require_once './inc/init.php';
+define('THIS_SCRIPT', 'MULTI_SRC_TYL_CONVERSION_SCRIPT');
+ini_set('max_execution_time', 300);
+$prefix = 'g33k_';
+$do_conversion = false;
+
+if (!$db->table_exists($prefix.'thankyoulike_thankyoulike')) {
+	echo '<span style="color: red;">Fatal error:</span> The Thank You/Like System plugin is not installed.';
+	exit;
+} else if ($db->table_exists('thx')) {
+	$do_conversion = true;
+	$query = $db->simple_select('thx', 'pid, adduid as uid, uid as puid, time as dateline');
+	$tyl_from_type = 'thanks';
+	$from_plugin_name = 'the Thanks plugin';
+} else if ($db->table_exists('post_likes')) {
+	$do_conversion = true;
+	$query = $db->query('SELECT pl.post_id as pid, pl.user_id as uid, p.uid as puid, UNIX_TIMESTAMP(pl.created_at) as dateline FROM '.TABLE_PREFIX.'post_likes pl INNER JOIN '.TABLE_PREFIX.'posts p ON pl.post_id = p.pid');
+	$tyl_from_type = 'likes';
+	$from_plugin_name = 'the SimpleLikes plugin';
+} else {
+	echo '<span style="color: red;">Fatal error:</span> a compatible thanks/likes system from which to convert thanks/likes was not detected.';
+	exit;
+}
+
+if ($do_conversion) {
+	if (empty($query)) {
+		echo "<span style=\"color: orange;\">Warning:</span> no {$tyl_from_type} found in the database table for {$from_plugin_name}. Nothing to convert, so no conversion performed.";
+	} else {
+		$batch = $total = 0;
+		$rows = array();
+		while ($row = $db->fetch_array($query)) {
+			$rows[] = $row;
+			$batch++;
+			$total++;
+			if ($batch == 1000) {
+				$db->insert_query_multiple($prefix.'thankyoulike_thankyoulike', $rows);
+				$rows = array();
+				$batch = 0;
+				echo "Converted {$total} {$tyl_from_type} from {$from_plugin_name} into thank yous / likes for the Thank You/Like System plugin so far.<br/>";
+			}
+		}
+		if ($batch > 0) {
+			$db->insert_query_multiple($prefix.'thankyoulike_thankyoulike', $rows);
+		}
+		echo "<span style=\"color: green;\">Done!</span> Converted {$total} {$tyl_from_type} from {$from_plugin_name} into thank yous / likes for the Thank You/Like System plugin in total.";
+	}
+}