From 7592f4aacff6a48e149b8fcdebb2ffbe4f92b0d2 Mon Sep 17 00:00:00 2001
From: Holger Brunn <hbrunn@therp.nl>
Date: Mon, 26 Sep 2016 14:56:13 +0200
Subject: [PATCH] [FIX] don't crash if an xmlid refers to a nonexisting field
 (#559)

---
 database_cleanup/models/purge_modules.py | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/database_cleanup/models/purge_modules.py b/database_cleanup/models/purge_modules.py
index 89f4f0b43..6b20b9a6f 100644
--- a/database_cleanup/models/purge_modules.py
+++ b/database_cleanup/models/purge_modules.py
@@ -19,7 +19,7 @@ class IrModelData(models.Model):
             if this.model == 'ir.model.fields':
                 field = self.env[this.model].with_context(
                     **{MODULE_UNINSTALL_FLAG: True}).browse(this.res_id)
-                if field.model not in self.env:
+                if not field.exists() or field.model not in self.env:
                     this.unlink()
                     continue
             if this.model not in self.env: