// Add a buton to erase all log

classes/Logger.php

@@ -149,6 +149,11 @@ class	LoggerCore extends ObjectModel
 
 		return $this->hash;
 	}
+	
+	public static function eraseAllLogs()
+	{
+		return Db::getInstance()->execute('TRUNCATE TABLE '._DB_PREFIX_.'log');
+	}
 
 	/**
 	 * check if this log message already exists in database.

controllers/admin/AdminLogsController.php

@@ -64,10 +64,20 @@ class AdminLogsControllerCore extends AdminController
 		$this->_join .= ' LEFT JOIN '._DB_PREFIX_.'employee e ON (a.id_employee = e.id_employee)';
 		parent::__construct();
 	}
+	
+	public function processDelete()
+	{
+		return Logger::eraseAllLogs();
+	}
 
 	public function initToolbar()
 	{
 		parent::initToolbar();
+		$this->toolbar_btn['delete'] = array(
+			'short' => 'Erase',
+			'desc' => $this->l('Erase all'),
+			'js' => 'if (confirm(\''.$this->l('Are you sure?').'\')) document.location = \''.$this->context->link->getAdminLink('AdminLogs').'&token='.$this->token.'&deletelog=1\';'
+		);
 		unset($this->toolbar_btn['new']);
 	}