From 9bf5821a3bfd1877123e029c0f2509b8310b1b48 Mon Sep 17 00:00:00 2001
From: flynsarmy <flynsarmy@gmail.com>
Date: Sat, 23 Aug 2014 17:35:18 +1000
Subject: [PATCH] Allow complex sortable columns

---
 modules/backend/widgets/Lists.php | 12 +++++++++++-
 1 file changed, 11 insertions(+), 1 deletion(-)

diff --git a/modules/backend/widgets/Lists.php b/modules/backend/widgets/Lists.php
index 8c8216b73..a9737455e 100644
--- a/modules/backend/widgets/Lists.php
+++ b/modules/backend/widgets/Lists.php
@@ -402,6 +402,16 @@ class Lists extends WidgetBase
          * Apply sorting
          */
         if ($sortColumn = $this->getSortColumn()) {
+            // Determine if the column has an sqlSelect
+            foreach ($this->getListColumns() as $column) {
+                if ($column->columnName == $sortColumn) {
+                    if ($column->sqlSelect) {
+                        $sortColumn = $column->sqlSelect;
+                    }
+                    break;
+                }
+            }
+
             $query->orderBy($sortColumn, $this->sortDirection);
         }
 
@@ -1042,7 +1052,7 @@ class Lists extends WidgetBase
     //
     // Helpers
     //
-    
+
     /**
      * Check if column refers to a relation of the model
      * @param  ListColumn  $column List column object