Fix user deletion

Author: DaneEveritt

app/Repositories/UserRepository.php

@@ -165,7 +165,7 @@ public function update($id, array $data)
      */
     public function delete($id)
     {
-        if (Models\Server::where('owner', $id)->count() > 0) {
+        if (Models\Server::where('owner_id', $id)->count() > 0) {
             throw new DisplayException('Cannot delete a user with active servers attached to thier account.');
         }
 
@@ -177,10 +177,15 @@ public function delete($id)
         DB::beginTransaction();
 
         try {
-            Models\Permission::where('user_id', $id)->delete();
-            Models\Subuser::where('user_id', $id)->delete();
-            Models\User::destroy($id);
+            foreach(Models\Subuser::with('permissions')->where('user_id', $id)->get() as &$subuser) {
+                foreach($subuser->permissions as &$permission) {
+                    $permission->delete();
+                }
+
+                $subuser->delete();
+            }
 
+            Models\User::destroy($id);
             DB::commit();
 
             return true;