Player history and powergamers rewrite

layout/widgets/powergamers.php

@@ -0,0 +1,63 @@
+<div class="well widget">
+	<div class="header">
+		Top 5 Powergamers
+	</div>
+	<div class="body">
+		<table>
+			<?php
+			$cache = new Cache('engine/cache/widget_powergamers');
+			if ($cache->hasExpired()) {
+				$players = mysql_select_multi("
+					SELECT
+					    `h`.`player_id`,
+					    `p`.`name`,
+					    `p`.`level`,
+					    CAST(`p`.`experience` as signed) - CAST(`f`.`experience` as signed) AS `diff_experience`
+					FROM (
+					    SELECT
+					        `i`.`player_id`,
+					        IFNULL(`o`.`id`, `i`.`id`) AS `from_id`
+					    FROM `player_history_skill` AS `i`
+					    LEFT JOIN (
+					        SELECT
+					            `x`.`player_id`,
+					            MAX(`x`.`id`) AS `id`
+					        FROM `player_history_skill` AS `x`
+					        WHERE 
+					            `x`.`lastlogout` < UNIX_TIMESTAMP() - 7 * 24 * 60 * 60
+					        GROUP BY
+					            `x`.`player_id`
+					    ) AS `o`
+					        ON `i`.`player_id` = `o`.`player_id`
+					    WHERE 
+					        `i`.`lastlogout` >= UNIX_TIMESTAMP() - 7 * 24 * 60 * 60
+					    GROUP BY
+					        `i`.`player_id`
+					) AS `h`
+					INNER JOIN `player_history_skill` AS `f`
+					    ON `h`.`from_id` = `f`.`id`
+					INNER JOIN `players` AS `p`
+					    ON `h`.`player_id` = `p`.`id`
+					WHERE CAST(`p`.`experience` as signed) - CAST(`f`.`experience` as signed) > 0
+					ORDER BY CAST(`p`.`experience` as signed) - CAST(`f`.`experience` as signed) DESC
+					LIMIT 5
+				");
+
+				$cache->setContent($players);
+				$cache->save();
+			} else {
+				$players = $cache->load();
+			}
+
+			if ($players) {
+				foreach($players as $count => $player) {
+					$nr = $count+1;
+					$kexp = $player['diff_experience'] / 1000;
+					$kexp = number_format($kexp, 0, '', ' ');
+					echo "<tr><td>{$nr}</td><td><a href='characterprofile.php?name={$player['name']}'>{$player['name']}</a> ({$player['level']}) <span style='float: right;font-size:14px;'>{$kexp} K exp</span></td></tr>";
+				}
+			}
+			?>
+		</table>
+	</div>
+</div>