Fixed issue with Customer Contacts in Transaction Documents

erpnext/accounts/party.py

@@ -74,6 +74,15 @@ def set_contact_details(out, party, party_type):
 		{party_type.lower(): party.name, "is_primary_contact":1}, "name")
 
 	if not out.contact_person:
+		out.update({
+			"contact_person": None,
+			"contact_display": None,
+			"contact_email": None,
+			"contact_mobile": None,
+			"contact_phone": None,
+			"contact_designation": None,
+			"contact_department": None
+		})
 		return
 
 	out.update(get_contact_details(out.contact_person))

erpnext/buying/doctype/purchase_common/purchase_common.js

@@ -70,10 +70,6 @@ erpnext.buying.BuyingController = erpnext.TransactionController.extend({
 		erpnext.utils.get_address_display(this.frm);
 	},
 
-	contact_person: function() {
-		erpnext.utils.get_contact_details(this.frm);
-	},
-
 	buying_price_list: function() {
 		this.apply_price_list();
 	},

erpnext/public/js/controllers/transaction.js

@@ -283,6 +283,10 @@ erpnext.TransactionController = erpnext.taxes_and_totals.extend({
 		return erpnext.get_currency(this.frm.doc.company);
 	},
 	
+	contact_person: function() {
+		erpnext.utils.get_contact_details(this.frm);
+	},
+
 	currency: function() {
 		var me = this;
 		this.set_dynamic_labels();

erpnext/selling/sales_common.js

@@ -112,10 +112,6 @@ erpnext.selling.SellingController = erpnext.TransactionController.extend({
 		erpnext.utils.get_address_display(this.frm, "shipping_address_name", "shipping_address");
 	},
 
-	contact_person: function() {
-		erpnext.utils.get_contact_details(this.frm);
-	},
-
 	sales_partner: function() {
 		this.apply_pricing_rule();
 	},

erpnext/utilities/doctype/contact/contact.py

@@ -66,5 +66,4 @@ def get_contact_details(contact):
 		"contact_designation": contact.get("designation"),
 		"contact_department": contact.get("department")
 	}
-
 	return out