fetch defaults after mapping from prev document

erpnext/accounts/doctype/purchase_invoice/purchase_invoice.py

@@ -97,10 +97,18 @@ class DocType(TransactionBase):
 			self.validate_duplicate_docname('purchase_order')
 			self.doclist = get_obj('DocType Mapper', 'Purchase Order-Purchase Invoice').dt_map('Purchase Order', 'Purchase Invoice', self.doc.purchase_order_main, self.doc, self.doclist, "[['Purchase Order', 'Purchase Invoice'],['Purchase Order Item', 'Purchase Invoice Item'], ['Purchase Taxes and Charges','Purchase Taxes and Charges']]")
 		
-		ret = self.get_credit_to()
+		self.get_expense_account('entries')
 
+		ret = self.get_credit_to()
 		if ret.has_key('credit_to'):
 			self.doc.credit_to = ret['credit_to']
+
+	def get_expense_account(self, doctype):
+		for d in getlist(self.doclist, doctype):			
+			if d.item_code:
+				item = webnotes.conn.sql("select purchase_account, cost_center from tabItem where name = '%s'" %(d.item_code), as_dict=1)
+				d.expense_head = item and item[0]['purchase_account'] or ''
+				d.cost_center = item and item[0]['cost_center'] or ''
 			
 
 	# Get Item Details

erpnext/accounts/doctype/sales_invoice/sales_invoice.py

@@ -177,14 +177,13 @@ class DocType(TransactionBase):
 					arg = {'item_code':doc.fields.get('item_code'), 'income_account':doc.fields.get('income_account'), 
 						'cost_center': doc.fields.get('cost_center'), 'warehouse': doc.fields.get('warehouse')};
 
-					ret = obj.get_item_details(arg, self)
+					ret = self.get_pos_details(arg)
-					ret = self.get_pos_details(arg, ret)
 					for r in ret:
 						if not doc.fields.get(r):
 							doc.fields[r] = ret[r]		
 
 
-	def get_pos_details(self, args, ret):
+	def get_pos_details(self, args, ret = {}):
 		if args['item_code'] and cint(self.doc.is_pos) == 1:
 			dtl = webnotes.conn.sql("select income_account, warehouse, cost_center from `tabPOS Setting` where user = '%s' and company = '%s'" % (session['user'], self.doc.company), as_dict=1)				 
 			if not dtl:

erpnext/selling/doctype/quotation/quotation.py

@@ -83,7 +83,7 @@ class DocType(TransactionBase):
 				if doc.fields.get('item_code'):
 					arg = {'item_code':doc.fields.get('item_code'), 'income_account':doc.fields.get('income_account'), 
 						'cost_center': doc.fields.get('cost_center'), 'warehouse': doc.fields.get('warehouse')};
-					ret = obj.get_item_details(arg, self)
+					ret = obj.get_item_defaults(arg, self)
 					for r in ret:
 						if not doc.fields.get(r):
 							doc.fields[r] = ret[r]					

erpnext/selling/doctype/sales_common/sales_common.py

@@ -156,6 +156,22 @@ class DocType(TransactionBase):
 			ret['base_ref_rate'] = flt(base_ref_rate)
 			ret['basic_rate'] = flt(base_ref_rate)
 		return ret
+
+
+	def get_item_defaults(self, args):
+		item = webnotes.conn.sql("""select default_warehouse, default_income_account, default_sales_cost_center from `tabItem` 
+			where name = '%s' and (ifnull(end_of_life,'') = '' or end_of_life > now() or end_of_life = '0000-00-00') 
+			and (is_sales_item = 'Yes' or is_service_item = 'Yes') """ % (args['item_code']), as_dict=1)
+		ret = {
+			'reserved_warehouse'	: item and item[0]['default_warehouse'] or '',
+			'warehouse'				: item and item[0]['default_warehouse'] or args.get('warehouse'),
+			'income_account'		: item and item[0]['default_income_account'] or args.get('income_account'),
+			'cost_center'			: item and item[0]['default_sales_cost_center'] or args.get('cost_center')
+		}
+
+		return ret
+
+
 	
 	# ***************** Get Ref rate as entered in Item Master ********************
 	def get_ref_rate(self, item_code, price_list_name, price_list_currency, plc_conv_rate):

erpnext/selling/doctype/sales_order/sales_order.py

@@ -100,7 +100,7 @@ class DocType(TransactionBase):
 				if doc.fields.get('item_code'):
 					arg = {'item_code':doc.fields.get('item_code'), 'income_account':doc.fields.get('income_account'), 
 						'cost_center': doc.fields.get('cost_center'), 'warehouse': doc.fields.get('warehouse')};
-					ret = obj.get_item_details(arg, self)
+					ret = obj.get_item_defaults(arg, self)
 					for r in ret:
 						if not doc.fields.get(r):
 							doc.fields[r] = ret[r]					

erpnext/stock/doctype/delivery_note/delivery_note.py

@@ -117,7 +117,7 @@ class DocType(TransactionBase):
 				if doc.fields.get('item_code'):
 					arg = {'item_code':doc.fields.get('item_code'), 'income_account':doc.fields.get('income_account'), 
 						'cost_center': doc.fields.get('cost_center'), 'warehouse': doc.fields.get('warehouse')};
-					ret = obj.get_item_details(arg, self)
+					ret = obj.get_item_defaults(arg, self)
 					for r in ret:
 						if not doc.fields.get(r):
 							doc.fields[r] = ret[r]