From bbaa1df757ca128e5daf3fc4c8d8374bd273965d Mon Sep 17 00:00:00 2001
From: Rushabh Mehta <rmehta@gmail.com>
Date: Mon, 1 Jul 2013 11:17:43 +0530
Subject: [PATCH 1/3] [fix] Update in get_values (ignore) condition to allow
 tags

---
 webnotes/db.py | 6 +++---
 1 file changed, 3 insertions(+), 3 deletions(-)

diff --git a/webnotes/db.py b/webnotes/db.py
index 235fe669a0..536c7e2a36 100644
--- a/webnotes/db.py
+++ b/webnotes/db.py
@@ -323,10 +323,10 @@ class Database:
 			try:
 				return self.get_values_from_table(fields, filters, doctype, as_dict, debug)
 			except Exception, e:
-				if e.args[0]!=1146:
+				if ignore and e.args[0] in (1146, 1054):
+					return None
+				else:
 					raise e
-					
-				# not a table, try in singles
 
 		return self.get_values_from_single(fields, filters, doctype, as_dict, debug)
 

From 01baf2712c7d9bed9847fd7f9e7002c29949bb89 Mon Sep 17 00:00:00 2001
From: Nabin Hait <nabinhait@gmail.com>
Date: Mon, 1 Jul 2013 14:03:08 +0530
Subject: [PATCH 2/3] [fixes] ignore single doctypes in chekcing linked
 documents

---
 webnotes/model/utils.py | 21 +++++++++++----------
 1 file changed, 11 insertions(+), 10 deletions(-)

diff --git a/webnotes/model/utils.py b/webnotes/model/utils.py
index bc33881fc2..264e6ba0db 100644
--- a/webnotes/model/utils.py
+++ b/webnotes/model/utils.py
@@ -212,18 +212,19 @@ def check_if_doc_is_linked(dt, dn, method="Delete"):
 	"""
 	from webnotes.model.rename_doc import get_link_fields
 	link_fields = get_link_fields(dt)
-	link_fields = [[lf['parent'], lf['fieldname']] for lf in link_fields]
+	link_fields = [[lf['parent'], lf['fieldname'], lf['issingle']] for lf in link_fields]
 
-	for link_dt, link_field in link_fields:
-		item = webnotes.conn.get_value(link_dt, {link_field:dn}, ["name", "parent", "parenttype",
-			"docstatus"], as_dict=True)
+	for link_dt, link_field, issingle in link_fields:
+		if not issingle:
+			item = webnotes.conn.get_value(link_dt, {link_field:dn}, 
+				["name", "parent", "parenttype", "docstatus"], as_dict=True)
 		
-		if item and item.parent != dn and (method=="Delete" or 
-				(method=="Cancel" and item.docstatus==1)):
-			webnotes.msgprint(method + " " + _("Error") + ":"+\
-				("%s (%s) " % (dn, dt)) + _("is linked in") + (" %s (%s)") % 
-				(item.parent or item.name, item.parent and item.parenttype or link_dt),
-				raise_exception=LinkExistsError)
+			if item and item.parent != dn and (method=="Delete" or 
+					(method=="Cancel" and item.docstatus==1)):
+				webnotes.msgprint(method + " " + _("Error") + ":"+\
+					("%s (%s) " % (dn, dt)) + _("is linked in") + (" %s (%s)") % 
+					(item.parent or item.name, item.parent and item.parenttype or link_dt),
+					raise_exception=LinkExistsError)
 
 def round_floats_in_doc(doc, precision_map):
 	from webnotes.utils import flt

From 9b954300f9eaaafe2ede9a4a4e3dd87ec46f6931 Mon Sep 17 00:00:00 2001
From: Rushabh Mehta <rmehta@gmail.com>
Date: Tue, 2 Jul 2013 11:22:46 +0530
Subject: [PATCH 3/3] [db.py] get_values will look in Singles if table not
 found.

---
 webnotes/db.py | 4 ++++
 1 file changed, 4 insertions(+)

diff --git a/webnotes/db.py b/webnotes/db.py
index 536c7e2a36..903368ffd1 100644
--- a/webnotes/db.py
+++ b/webnotes/db.py
@@ -324,7 +324,11 @@ class Database:
 				return self.get_values_from_table(fields, filters, doctype, as_dict, debug)
 			except Exception, e:
 				if ignore and e.args[0] in (1146, 1054):
+					# table or column not found, return None
 					return None
+				elif (not ignore) and e.args[0]==1146:
+					# table not found, look in singles
+					pass
 				else:
 					raise e