From 60f8816a10c7192ed411f5f2fd6d630fe1dc4a9a Mon Sep 17 00:00:00 2001
From: ilvalle <paolo.valleri@gmail.com>
Date: Thu, 2 Apr 2015 21:38:05 +0200
Subject: [PATCH] fix web2py/web2py#896, avoid to select blob fields in
 sqlform.grid

---
 gluon/sqlhtml.py | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/gluon/sqlhtml.py b/gluon/sqlhtml.py
index 0b23dbf8..f4e270b2 100644
--- a/gluon/sqlhtml.py
+++ b/gluon/sqlhtml.py
@@ -2148,7 +2148,7 @@ class SQLFORM(FORM):
         else:
             fields = []
             columns = []
-            filter1 = lambda f: isinstance(f, Field)
+            filter1 = lambda f: isinstance(f, Field) and f.type != 'blob'
             filter2 = lambda f: isinstance(f, Field) and f.readable
             for table in tables:
                 fields += filter(filter1, table)