[enhancement] warehouse tree structure

erpnext/patches.txt

@@ -273,3 +273,4 @@ execute:frappe.rename_doc("DocType", "Payments", "Sales Invoice Payment", force=
 erpnext.patches.v7_0.update_mins_to_first_response
 erpnext.patches.v6_20x.repost_valuation_rate_for_negative_inventory
 erpnext.patches.v7_0.re_route
+erpnext.patches.v7_0.create_warehouse_nestedset

erpnext/patches/v7_0/create_warehouse_nestedset.py

@@ -0,0 +1,18 @@
+import frappe
+from frappe import _
+
+def execute():
+	if not frappe.db.exists("Warehouse", {"warehouse_name": _("All Warehouses")}):
+		parent_warehouse = frappe.get_doc({
+			"doctype": "Warehouse",
+			"warehouse_name": _("All Warehouses"),
+			"is_group": "Yes"
+		}).insert(ignore_permissions=True)
+		
+		for warehouse in frappe.db.sql_list("""select name from tabWarehouse
+			where name != %s order by name asc""", "All Warehouses - SI"):
+			print warehouse
+			warehouse = frappe.get_doc("Warehouse", warehouse)
+			warehouse.is_group = "No"
+			warehouse.parent_warehouse = parent_warehouse.name
+			warehouse.save(ignore_permissions=True)

erpnext/stock/doctype/warehouse/warehouse.json

@@ -2,6 +2,7 @@
  "allow_copy": 0, 
  "allow_import": 1, 
  "allow_rename": 1, 
+ "beta": 0, 
  "creation": "2013-03-07 18:50:32", 
  "custom": 0, 
  "description": "A logical Warehouse against which stock entries are made.", 
@@ -420,6 +421,159 @@
    "search_index": 0, 
    "set_only_once": 0, 
    "unique": 0
+  }, 
+  {
+   "allow_on_submit": 0, 
+   "bold": 0, 
+   "collapsible": 0, 
+   "fieldname": "tree_details", 
+   "fieldtype": "Section Break", 
+   "hidden": 0, 
+   "ignore_user_permissions": 0, 
+   "ignore_xss_filter": 0, 
+   "in_filter": 0, 
+   "in_list_view": 0, 
+   "label": "Tree Details", 
+   "length": 0, 
+   "no_copy": 0, 
+   "permlevel": 0, 
+   "precision": "", 
+   "print_hide": 0, 
+   "print_hide_if_no_value": 0, 
+   "read_only": 0, 
+   "report_hide": 0, 
+   "reqd": 0, 
+   "search_index": 0, 
+   "set_only_once": 0, 
+   "unique": 0
+  }, 
+  {
+   "allow_on_submit": 0, 
+   "bold": 0, 
+   "collapsible": 0, 
+   "fieldname": "parent_warehouse", 
+   "fieldtype": "Link", 
+   "hidden": 0, 
+   "ignore_user_permissions": 1, 
+   "ignore_xss_filter": 0, 
+   "in_filter": 0, 
+   "in_list_view": 0, 
+   "label": "Parent Warehouse", 
+   "length": 0, 
+   "no_copy": 0, 
+   "options": "Warehouse", 
+   "permlevel": 0, 
+   "precision": "", 
+   "print_hide": 0, 
+   "print_hide_if_no_value": 0, 
+   "read_only": 0, 
+   "report_hide": 0, 
+   "reqd": 0, 
+   "search_index": 1, 
+   "set_only_once": 0, 
+   "unique": 0
+  }, 
+  {
+   "allow_on_submit": 0, 
+   "bold": 0, 
+   "collapsible": 0, 
+   "fieldname": "is_group", 
+   "fieldtype": "Select", 
+   "hidden": 0, 
+   "ignore_user_permissions": 0, 
+   "ignore_xss_filter": 0, 
+   "in_filter": 0, 
+   "in_list_view": 1, 
+   "label": "Has Child Node", 
+   "length": 0, 
+   "no_copy": 0, 
+   "options": "\nYes\nNo", 
+   "permlevel": 0, 
+   "precision": "", 
+   "print_hide": 0, 
+   "print_hide_if_no_value": 0, 
+   "read_only": 0, 
+   "report_hide": 0, 
+   "reqd": 1, 
+   "search_index": 0, 
+   "set_only_once": 0, 
+   "unique": 0
+  }, 
+  {
+   "allow_on_submit": 0, 
+   "bold": 0, 
+   "collapsible": 0, 
+   "fieldname": "lft", 
+   "fieldtype": "Int", 
+   "hidden": 0, 
+   "ignore_user_permissions": 0, 
+   "ignore_xss_filter": 0, 
+   "in_filter": 0, 
+   "in_list_view": 0, 
+   "label": "lft", 
+   "length": 0, 
+   "no_copy": 0, 
+   "permlevel": 0, 
+   "precision": "", 
+   "print_hide": 0, 
+   "print_hide_if_no_value": 0, 
+   "read_only": 0, 
+   "report_hide": 0, 
+   "reqd": 0, 
+   "search_index": 0, 
+   "set_only_once": 0, 
+   "unique": 0
+  }, 
+  {
+   "allow_on_submit": 0, 
+   "bold": 0, 
+   "collapsible": 0, 
+   "fieldname": "rgt", 
+   "fieldtype": "Int", 
+   "hidden": 0, 
+   "ignore_user_permissions": 0, 
+   "ignore_xss_filter": 0, 
+   "in_filter": 0, 
+   "in_list_view": 0, 
+   "label": "rgt", 
+   "length": 0, 
+   "no_copy": 0, 
+   "permlevel": 0, 
+   "precision": "", 
+   "print_hide": 0, 
+   "print_hide_if_no_value": 0, 
+   "read_only": 0, 
+   "report_hide": 0, 
+   "reqd": 0, 
+   "search_index": 0, 
+   "set_only_once": 0, 
+   "unique": 0
+  }, 
+  {
+   "allow_on_submit": 0, 
+   "bold": 0, 
+   "collapsible": 0, 
+   "fieldname": "old_parent", 
+   "fieldtype": "Link", 
+   "hidden": 0, 
+   "ignore_user_permissions": 0, 
+   "ignore_xss_filter": 0, 
+   "in_filter": 0, 
+   "in_list_view": 0, 
+   "label": "Old Parent", 
+   "length": 0, 
+   "no_copy": 0, 
+   "options": "Warehouse", 
+   "permlevel": 0, 
+   "precision": "", 
+   "print_hide": 0, 
+   "print_hide_if_no_value": 0, 
+   "read_only": 0, 
+   "report_hide": 0, 
+   "reqd": 0, 
+   "search_index": 0, 
+   "set_only_once": 0, 
+   "unique": 0
   }
  ], 
  "hide_heading": 0, 
@@ -432,7 +586,7 @@
  "issingle": 0, 
  "istable": 0, 
  "max_attachments": 0, 
- "modified": "2016-04-18 05:44:24.837579", 
+ "modified": "2016-05-23 21:25:21.396188", 
  "modified_by": "Administrator", 
  "module": "Stock", 
  "name": "Warehouse", 

erpnext/stock/doctype/warehouse/warehouse.py

@@ -5,10 +5,11 @@ from __future__ import unicode_literals
 import frappe
 from frappe.utils import cint, validate_email_add
 from frappe import throw, msgprint, _
+from frappe.utils.nestedset import NestedSet
 
-from frappe.model.document import Document
+class Warehouse(NestedSet):
+	nsm_parent_field = 'parent_warehouse'
 	
-class Warehouse(Document):
 	def autoname(self):
 		suffix = " - " + frappe.db.get_value("Company", self.company, "abbr")
 		if not self.warehouse_name.endswith(suffix):
@@ -45,6 +46,7 @@ class Warehouse(Document):
 
 	def on_update(self):
 		self.create_account_head()
+		self.update_nsm_model()
 
 	def create_account_head(self):
 		if cint(frappe.defaults.get_global_default("auto_accounting_for_stock")):
@@ -82,6 +84,8 @@ class Warehouse(Document):
 			frappe.throw(_("Warehouse {0}: Parent account {1} does not bolong to the company {2}")
 				.format(self.name, self.create_account_under, self.company))
 	
+	def update_nsm_model(self):
+		frappe.utils.nestedset.update_nsm(self)
 
 	def on_trash(self):
 		# delete bin