controllers/selling_controller.py - Clicks/Forks/ERPNext - Gitiles

 # Copyright (c) 2013, Web Notes Technologies Pvt. Ltd. and Contributors
 # License: GNU General Public License v3. See license.txt

 from __future__ import unicode_literals
 import webnotes
 from webnotes.utils import cint, flt, comma_or, _round, cstr
 from setup.utils import get_company_currency
 from selling.utils import get_item_details
 from webnotes import msgprint, _

 from controllers.stock_controller import StockController

 class SellingController(StockController):
 	def onload_post_render(self):
 		# contact, address, item details and pos details (if applicable)
 		self.set_missing_values()

 	def validate(self):
 		super(SellingController, self).validate()
 		self.validate_max_discount()
 		check_active_sales_items(self)

 	def get_sender(self, comm):
 		return webnotes.conn.get_value('Sales Email Settings', None, 'email_id')

 	def set_missing_values(self, for_validate=False):
 		super(SellingController, self).set_missing_values(for_validate)

 		# set contact and address details for customer, if they are not mentioned
 		self.set_missing_lead_customer_details()
 		self.set_price_list_and_item_details()
 		if self.doc.fields.get("__islocal"):
 			self.set_taxes("other_charges", "charge")

 	def set_missing_lead_customer_details(self):
 		if self.doc.customer:
 			if not (self.doc.contact_person and self.doc.customer_address and self.doc.customer_name):
 				for fieldname, val in self.get_customer_defaults().items():
 					if not self.doc.fields.get(fieldname) and self.meta.get_field(fieldname):
 						self.doc.fields[fieldname] = val

 		elif self.doc.lead:
 			if not (self.doc.customer_address and self.doc.customer_name and \
 				self.doc.contact_display):
 				for fieldname, val in self.get_lead_defaults().items():
 					if not self.doc.fields.get(fieldname) and self.meta.get_field(fieldname):
 						self.doc.fields[fieldname] = val

 	def set_price_list_and_item_details(self):
 		self.set_price_list_currency("Selling")
 		self.set_missing_item_details(get_item_details)

 	def get_other_charges(self):
 		self.doclist = self.doc.clear_table(self.doclist, "other_charges")
 		self.set_taxes("other_charges", "charge")

 	def apply_shipping_rule(self):
 		if self.doc.shipping_rule:
 			shipping_rule = webnotes.bean("Shipping Rule", self.doc.shipping_rule)
 			value = self.doc.net_total

 			# TODO
 			# shipping rule calculation based on item's net weight

 			shipping_amount = 0.0
 			for condition in shipping_rule.doclist.get({"parentfield": "shipping_rule_conditions"}):
 				if not condition.to_value or (flt(condition.from_value) <= value <= flt(condition.to_value)):
 					shipping_amount = condition.shipping_amount
 					break

 			self.doclist.append({
 				"doctype": "Sales Taxes and Charges",
 				"parentfield": "other_charges",
 				"charge_type": "Actual",
 				"account_head": shipping_rule.doc.account,
 				"cost_center": shipping_rule.doc.cost_center,
 				"description": shipping_rule.doc.label,
 				"rate": shipping_amount
 			})

 	def set_total_in_words(self):
 		from webnotes.utils import money_in_words
 		company_currency = get_company_currency(self.doc.company)

 		disable_rounded_total = cint(webnotes.conn.get_value("Global Defaults", None,
 			"disable_rounded_total"))

 		if self.meta.get_field("in_words"):
 			self.doc.in_words = money_in_words(disable_rounded_total and
 				self.doc.grand_total or self.doc.rounded_total, company_currency)
 		if self.meta.get_field("in_words_export"):
 			self.doc.in_words_export = money_in_words(disable_rounded_total and
 				self.doc.grand_total_export or self.doc.rounded_total_export, self.doc.currency)

 	def calculate_taxes_and_totals(self):
 		self.other_fname = "other_charges"

 		super(SellingController, self).calculate_taxes_and_totals()

 		self.calculate_total_advance("Sales Invoice", "advance_adjustment_details")
 		self.calculate_commission()
 		self.calculate_contribution()

 	def determine_exclusive_rate(self):
 		if not any((cint(tax.included_in_print_rate) for tax in self.tax_doclist)):
 			# no inclusive tax
 			return

 		for item in self.item_doclist:
 			item_tax_map = self._load_item_tax_rate(item.item_tax_rate)
 			cumulated_tax_fraction = 0
 			for i, tax in enumerate(self.tax_doclist):
 				tax.tax_fraction_for_current_item = self.get_current_tax_fraction(tax, item_tax_map)

 				if i==0:
 					tax.grand_total_fraction_for_current_item = 1 + tax.tax_fraction_for_current_item
 				else:
 					tax.grand_total_fraction_for_current_item = \
 						self.tax_doclist[i-1].grand_total_fraction_for_current_item \
 						+ tax.tax_fraction_for_current_item

 				cumulated_tax_fraction += tax.tax_fraction_for_current_item

 			if cumulated_tax_fraction:
 				item.amount = flt((item.export_amount * self.doc.conversion_rate) /
 					(1 + cumulated_tax_fraction), self.precision("amount", item))

 				item.basic_rate = flt(item.amount / item.qty, self.precision("basic_rate", item))

 				if item.adj_rate == 100:
 					item.base_ref_rate = item.basic_rate
 					item.basic_rate = 0.0
 				else:
 					item.base_ref_rate = flt(item.basic_rate / (1 - (item.adj_rate / 100.0)),
 						self.precision("base_ref_rate", item))

 	def get_current_tax_fraction(self, tax, item_tax_map):
 		"""
 			Get tax fraction for calculating tax exclusive amount
 			from tax inclusive amount
 		"""
 		current_tax_fraction = 0

 		if cint(tax.included_in_print_rate):
 			tax_rate = self._get_tax_rate(tax, item_tax_map)

 			if tax.charge_type == "On Net Total":
 				current_tax_fraction = tax_rate / 100.0

 			elif tax.charge_type == "On Previous Row Amount":
 				current_tax_fraction = (tax_rate / 100.0) * \
 					self.tax_doclist[cint(tax.row_id) - 1].tax_fraction_for_current_item

 			elif tax.charge_type == "On Previous Row Total":
 				current_tax_fraction = (tax_rate / 100.0) * \
 					self.tax_doclist[cint(tax.row_id) - 1].grand_total_fraction_for_current_item

 		return current_tax_fraction

 	def calculate_item_values(self):
 		for item in self.item_doclist:
 			self.round_floats_in(item)

 			if item.adj_rate == 100:
 				item.export_rate = 0
 			elif not item.export_rate:
 				item.export_rate = flt(item.ref_rate * (1.0 - (item.adj_rate / 100.0)),
 					self.precision("export_rate", item))

 			item.export_amount = flt(item.export_rate * item.qty,
 				self.precision("export_amount", item))

 			self._set_in_company_currency(item, "ref_rate", "base_ref_rate")
 			self._set_in_company_currency(item, "export_rate", "basic_rate")
 			self._set_in_company_currency(item, "export_amount", "amount")

 	def calculate_net_total(self):
 		self.doc.net_total = self.doc.net_total_export = 0.0

 		for item in self.item_doclist:
 			self.doc.net_total += item.amount
 			self.doc.net_total_export += item.export_amount

 		self.round_floats_in(self.doc, ["net_total", "net_total_export"])

 	def calculate_totals(self):
 		self.doc.grand_total = flt(self.tax_doclist and \
 			self.tax_doclist[-1].total or self.doc.net_total, self.precision("grand_total"))
 		self.doc.grand_total_export = flt(self.doc.grand_total / self.doc.conversion_rate,
 			self.precision("grand_total_export"))

 		self.doc.other_charges_total = flt(self.doc.grand_total - self.doc.net_total,
 			self.precision("other_charges_total"))
 		self.doc.other_charges_total_export = flt(self.doc.grand_total_export - self.doc.net_total_export,
 			self.precision("other_charges_total_export"))

 		self.doc.rounded_total = _round(self.doc.grand_total)
 		self.doc.rounded_total_export = _round(self.doc.grand_total_export)

 	def calculate_outstanding_amount(self):
 		# NOTE:
 		# write_off_amount is only for POS Invoice
 		# total_advance is only for non POS Invoice
 		if self.doc.doctype == "Sales Invoice" and self.doc.docstatus < 2:
 			self.round_floats_in(self.doc, ["grand_total", "total_advance", "write_off_amount",
 				"paid_amount"])
 			total_amount_to_pay = self.doc.grand_total - self.doc.write_off_amount
 			self.doc.outstanding_amount = flt(total_amount_to_pay - self.doc.total_advance - self.doc.paid_amount,
 				self.precision("outstanding_amount"))

 	def calculate_commission(self):
 		if self.meta.get_field("commission_rate"):
 			self.round_floats_in(self.doc, ["net_total", "commission_rate"])
 			if self.doc.commission_rate > 100.0:
 				msgprint(_(self.meta.get_label("commission_rate")) + " " +
 					_("cannot be greater than 100"), raise_exception=True)

 			self.doc.total_commission = flt(self.doc.net_total * self.doc.commission_rate / 100.0,
 				self.precision("total_commission"))

 	def calculate_contribution(self):
 		total = 0.0
 		sales_team = self.doclist.get({"parentfield": "sales_team"})
 		for sales_person in sales_team:
 			self.round_floats_in(sales_person)

 			sales_person.allocated_amount = flt(
 				self.doc.net_total * sales_person.allocated_percentage / 100.0,
 				self.precision("allocated_amount", sales_person))

 			total += sales_person.allocated_percentage

 		if sales_team and total != 100.0:
 			msgprint(_("Total") + " " +
 				_(self.meta.get_label("allocated_percentage", parentfield="sales_team")) +
 				" " + _("should be 100%"), raise_exception=True)

 	def validate_order_type(self):
 		valid_types = ["Sales", "Maintenance", "Shopping Cart"]
 		if not self.doc.order_type:
 			self.doc.order_type = "Sales"
 		elif self.doc.order_type not in valid_types:
 			msgprint(_(self.meta.get_label("order_type")) + " " +
 				_("must be one of") + ": " + comma_or(valid_types), raise_exception=True)

 	def check_credit(self, grand_total):
 		customer_account = webnotes.conn.get_value("Account", {"company": self.doc.company,
 			"master_name": self.doc.customer}, "name")
 		if customer_account:
 			total_outstanding = webnotes.conn.sql("""select
 				sum(ifnull(debit, 0)) - sum(ifnull(credit, 0))
 				from `tabGL Entry` where account = %s""", customer_account)
 			total_outstanding = total_outstanding[0][0] if total_outstanding else 0

 			outstanding_including_current = flt(total_outstanding) + flt(grand_total)
 			webnotes.bean('Account', customer_account).run_method("check_credit_limit",
 				outstanding_including_current)

 	def validate_max_discount(self):
 		for d in self.doclist.get({"parentfield": self.fname}):
 			discount = flt(webnotes.conn.get_value("Item", d.item_code, "max_discount"))

 			if discount and flt(d.adj_rate) > discount:
 				webnotes.throw(_("You cannot give more than ") + cstr(discount) + "% " +
 					_("discount on Item Code") + ": " + cstr(d.item_code))

 	def get_item_list(self):
 		il = []
 		for d in self.doclist.get({"parentfield": self.fname}):
 			reserved_warehouse = ""
 			reserved_qty_for_main_item = 0

 			if self.doc.doctype == "Sales Order":
 				if (webnotes.conn.get_value("Item", d.item_code, "is_stock_item") == 'Yes' or
 					self.has_sales_bom(d.item_code)) and not d.reserved_warehouse:
 						webnotes.throw(_("Please enter Reserved Warehouse for item ") +
 							d.item_code + _(" as it is stock Item or packing item"))
 				reserved_warehouse = d.reserved_warehouse
 				if flt(d.qty) > flt(d.delivered_qty):
 					reserved_qty_for_main_item = flt(d.qty) - flt(d.delivered_qty)

 			if self.doc.doctype == "Delivery Note" and d.against_sales_order:
 				# if SO qty is 10 and there is tolerance of 20%, then it will allow DN of 12.
 				# But in this case reserved qty should only be reduced by 10 and not 12

 				already_delivered_qty = self.get_already_delivered_qty(self.doc.name,
 					d.against_sales_order, d.prevdoc_detail_docname)
 				so_qty, reserved_warehouse = self.get_so_qty_and_warehouse(d.prevdoc_detail_docname)

 				if already_delivered_qty + d.qty > so_qty:
 					reserved_qty_for_main_item = -(so_qty - already_delivered_qty)
 				else:
 					reserved_qty_for_main_item = -flt(d.qty)

 			if self.has_sales_bom(d.item_code):
 				for p in self.doclist.get({"parentfield": "packing_details"}):
 					if p.parent_detail_docname == d.name and p.parent_item == d.item_code:
 						# the packing details table's qty is already multiplied with parent's qty
 						il.append(webnotes._dict({
 							'warehouse': p.warehouse,
 							'reserved_warehouse': reserved_warehouse,
 							'item_code': p.item_code,
 							'qty': flt(p.qty),
 							'reserved_qty': (flt(p.qty)/flt(d.qty)) * reserved_qty_for_main_item,
 							'uom': p.uom,
 							'batch_no': cstr(p.batch_no).strip(),
 							'serial_no': cstr(p.serial_no).strip(),
 							'name': d.name
 						}))
 			else:
 				il.append(webnotes._dict({
 					'warehouse': d.warehouse,
 					'reserved_warehouse': reserved_warehouse,
 					'item_code': d.item_code,
 					'qty': d.qty,
 					'reserved_qty': reserved_qty_for_main_item,
 					'uom': d.stock_uom,
 					'batch_no': cstr(d.batch_no).strip(),
 					'serial_no': cstr(d.serial_no).strip(),
 					'name': d.name
 				}))
 		return il

 	def has_sales_bom(self, item_code):
 		return webnotes.conn.sql("""select name from `tabSales BOM`
 			where new_item_code=%s and docstatus != 2""", item_code)

 	def get_already_delivered_qty(self, dn, so, so_detail):
 		qty = webnotes.conn.sql("""select sum(qty) from `tabDelivery Note Item`
 			where prevdoc_detail_docname = %s and docstatus = 1
 			and against_sales_order = %s
 			and parent != %s""", (so_detail, so, dn))
 		return qty and flt(qty[0][0]) or 0.0

 	def get_so_qty_and_warehouse(self, so_detail):
 		so_item = webnotes.conn.sql("""select qty, reserved_warehouse from `tabSales Order Item`
 			where name = %s and docstatus = 1""", so_detail, as_dict=1)
 		so_qty = so_item and flt(so_item[0]["qty"]) or 0.0
 		so_warehouse = so_item and so_item[0]["reserved_warehouse"] or ""
 		return so_qty, so_warehouse

 	def check_stop_sales_order(self, ref_fieldname):
 		for d in self.doclist.get({"parentfield": self.fname}):
 			if d.fields.get(ref_fieldname):
 				status = webnotes.conn.get_value("Sales Order", d.fields[ref_fieldname], "status")
 				if status == "Stopped":
 					webnotes.throw(self.doc.doctype +
 						_(" can not be created/modified against stopped Sales Order ") +
 						d.fields[ref_fieldname])

 def check_active_sales_items(obj):
 	for d in obj.doclist.get({"parentfield": obj.fname}):
 		if d.item_code:
 			item = webnotes.conn.sql("""select docstatus, is_sales_item,
 				is_service_item, default_income_account from tabItem where name = %s""",
 				d.item_code, as_dict=True)[0]
 			if item.is_sales_item == 'No' and item.is_service_item == 'No':
 				webnotes.throw(_("Item is neither Sales nor Service Item") + ": " + d.item_code)
 			if d.income_account and not item.default_income_account:
 				webnotes.conn.set_value("Item", d.item_code, "default_income_account",
 					d.income_account)
	# Copyright (c) 2013, Web Notes Technologies Pvt. Ltd. and Contributors
	# License: GNU General Public License v3. See license.txt

	from __future__ import unicode_literals
	import webnotes
	from webnotes.utils import cint, flt, comma_or, _round, cstr
	from setup.utils import get_company_currency
	from selling.utils import get_item_details
	from webnotes import msgprint, _

	from controllers.stock_controller import StockController

	class SellingController(StockController):
	def onload_post_render(self):
	# contact, address, item details and pos details (if applicable)
	self.set_missing_values()

	def validate(self):
	super(SellingController, self).validate()
	self.validate_max_discount()
	check_active_sales_items(self)

	def get_sender(self, comm):
	return webnotes.conn.get_value('Sales Email Settings', None, 'email_id')

	def set_missing_values(self, for_validate=False):
	super(SellingController, self).set_missing_values(for_validate)

	# set contact and address details for customer, if they are not mentioned
	self.set_missing_lead_customer_details()
	self.set_price_list_and_item_details()
	if self.doc.fields.get("__islocal"):
	self.set_taxes("other_charges", "charge")

	def set_missing_lead_customer_details(self):
	if self.doc.customer:
	if not (self.doc.contact_person and self.doc.customer_address and self.doc.customer_name):
	for fieldname, val in self.get_customer_defaults().items():
	if not self.doc.fields.get(fieldname) and self.meta.get_field(fieldname):
	self.doc.fields[fieldname] = val

	elif self.doc.lead:
	if not (self.doc.customer_address and self.doc.customer_name and \
	self.doc.contact_display):
	for fieldname, val in self.get_lead_defaults().items():
	if not self.doc.fields.get(fieldname) and self.meta.get_field(fieldname):
	self.doc.fields[fieldname] = val

	def set_price_list_and_item_details(self):
	self.set_price_list_currency("Selling")
	self.set_missing_item_details(get_item_details)

	def get_other_charges(self):
	self.doclist = self.doc.clear_table(self.doclist, "other_charges")
	self.set_taxes("other_charges", "charge")

	def apply_shipping_rule(self):
	if self.doc.shipping_rule:
	shipping_rule = webnotes.bean("Shipping Rule", self.doc.shipping_rule)
	value = self.doc.net_total

	# TODO
	# shipping rule calculation based on item's net weight

	shipping_amount = 0.0
	for condition in shipping_rule.doclist.get({"parentfield": "shipping_rule_conditions"}):
	if not condition.to_value or (flt(condition.from_value) <= value <= flt(condition.to_value)):
	shipping_amount = condition.shipping_amount
	break

	self.doclist.append({
	"doctype": "Sales Taxes and Charges",
	"parentfield": "other_charges",
	"charge_type": "Actual",
	"account_head": shipping_rule.doc.account,
	"cost_center": shipping_rule.doc.cost_center,
	"description": shipping_rule.doc.label,
	"rate": shipping_amount
	})

	def set_total_in_words(self):
	from webnotes.utils import money_in_words
	company_currency = get_company_currency(self.doc.company)

	disable_rounded_total = cint(webnotes.conn.get_value("Global Defaults", None,
	"disable_rounded_total"))

	if self.meta.get_field("in_words"):
	self.doc.in_words = money_in_words(disable_rounded_total and
	self.doc.grand_total or self.doc.rounded_total, company_currency)
	if self.meta.get_field("in_words_export"):
	self.doc.in_words_export = money_in_words(disable_rounded_total and
	self.doc.grand_total_export or self.doc.rounded_total_export, self.doc.currency)

	def calculate_taxes_and_totals(self):
	self.other_fname = "other_charges"

	super(SellingController, self).calculate_taxes_and_totals()

	self.calculate_total_advance("Sales Invoice", "advance_adjustment_details")
	self.calculate_commission()
	self.calculate_contribution()

	def determine_exclusive_rate(self):
	if not any((cint(tax.included_in_print_rate) for tax in self.tax_doclist)):
	# no inclusive tax
	return

	for item in self.item_doclist:
	item_tax_map = self._load_item_tax_rate(item.item_tax_rate)
	cumulated_tax_fraction = 0
	for i, tax in enumerate(self.tax_doclist):
	tax.tax_fraction_for_current_item = self.get_current_tax_fraction(tax, item_tax_map)

	if i==0:
	tax.grand_total_fraction_for_current_item = 1 + tax.tax_fraction_for_current_item
	else:
	tax.grand_total_fraction_for_current_item = \
	self.tax_doclist[i-1].grand_total_fraction_for_current_item \
	+ tax.tax_fraction_for_current_item

	cumulated_tax_fraction += tax.tax_fraction_for_current_item

	if cumulated_tax_fraction:
	item.amount = flt((item.export_amount * self.doc.conversion_rate) /
	(1 + cumulated_tax_fraction), self.precision("amount", item))

	item.basic_rate = flt(item.amount / item.qty, self.precision("basic_rate", item))

	if item.adj_rate == 100:
	item.base_ref_rate = item.basic_rate
	item.basic_rate = 0.0
	else:
	item.base_ref_rate = flt(item.basic_rate / (1 - (item.adj_rate / 100.0)),
	self.precision("base_ref_rate", item))

	def get_current_tax_fraction(self, tax, item_tax_map):
	"""
	Get tax fraction for calculating tax exclusive amount
	from tax inclusive amount
	"""
	current_tax_fraction = 0

	if cint(tax.included_in_print_rate):
	tax_rate = self._get_tax_rate(tax, item_tax_map)

	if tax.charge_type == "On Net Total":
	current_tax_fraction = tax_rate / 100.0

	elif tax.charge_type == "On Previous Row Amount":
	current_tax_fraction = (tax_rate / 100.0) * \
	self.tax_doclist[cint(tax.row_id) - 1].tax_fraction_for_current_item

	elif tax.charge_type == "On Previous Row Total":
	current_tax_fraction = (tax_rate / 100.0) * \
	self.tax_doclist[cint(tax.row_id) - 1].grand_total_fraction_for_current_item

	return current_tax_fraction

	def calculate_item_values(self):
	for item in self.item_doclist:
	self.round_floats_in(item)

	if item.adj_rate == 100:
	item.export_rate = 0
	elif not item.export_rate:
	item.export_rate = flt(item.ref_rate * (1.0 - (item.adj_rate / 100.0)),
	self.precision("export_rate", item))

	item.export_amount = flt(item.export_rate * item.qty,
	self.precision("export_amount", item))

	self._set_in_company_currency(item, "ref_rate", "base_ref_rate")
	self._set_in_company_currency(item, "export_rate", "basic_rate")
	self._set_in_company_currency(item, "export_amount", "amount")

	def calculate_net_total(self):
	self.doc.net_total = self.doc.net_total_export = 0.0

	for item in self.item_doclist:
	self.doc.net_total += item.amount
	self.doc.net_total_export += item.export_amount

	self.round_floats_in(self.doc, ["net_total", "net_total_export"])

	def calculate_totals(self):
	self.doc.grand_total = flt(self.tax_doclist and \
	self.tax_doclist[-1].total or self.doc.net_total, self.precision("grand_total"))
	self.doc.grand_total_export = flt(self.doc.grand_total / self.doc.conversion_rate,
	self.precision("grand_total_export"))

	self.doc.other_charges_total = flt(self.doc.grand_total - self.doc.net_total,
	self.precision("other_charges_total"))
	self.doc.other_charges_total_export = flt(self.doc.grand_total_export - self.doc.net_total_export,
	self.precision("other_charges_total_export"))

	self.doc.rounded_total = _round(self.doc.grand_total)
	self.doc.rounded_total_export = _round(self.doc.grand_total_export)

	def calculate_outstanding_amount(self):
	# NOTE:
	# write_off_amount is only for POS Invoice
	# total_advance is only for non POS Invoice
	if self.doc.doctype == "Sales Invoice" and self.doc.docstatus < 2:
	self.round_floats_in(self.doc, ["grand_total", "total_advance", "write_off_amount",
	"paid_amount"])
	total_amount_to_pay = self.doc.grand_total - self.doc.write_off_amount
	self.doc.outstanding_amount = flt(total_amount_to_pay - self.doc.total_advance - self.doc.paid_amount,
	self.precision("outstanding_amount"))

	def calculate_commission(self):
	if self.meta.get_field("commission_rate"):
	self.round_floats_in(self.doc, ["net_total", "commission_rate"])
	if self.doc.commission_rate > 100.0:
	msgprint(_(self.meta.get_label("commission_rate")) + " " +
	_("cannot be greater than 100"), raise_exception=True)

	self.doc.total_commission = flt(self.doc.net_total * self.doc.commission_rate / 100.0,
	self.precision("total_commission"))

	def calculate_contribution(self):
	total = 0.0
	sales_team = self.doclist.get({"parentfield": "sales_team"})
	for sales_person in sales_team:
	self.round_floats_in(sales_person)

	sales_person.allocated_amount = flt(
	self.doc.net_total * sales_person.allocated_percentage / 100.0,
	self.precision("allocated_amount", sales_person))

	total += sales_person.allocated_percentage

	if sales_team and total != 100.0:
	msgprint(_("Total") + " " +
	_(self.meta.get_label("allocated_percentage", parentfield="sales_team")) +
	" " + _("should be 100%"), raise_exception=True)

	def validate_order_type(self):
	valid_types = ["Sales", "Maintenance", "Shopping Cart"]
	if not self.doc.order_type:
	self.doc.order_type = "Sales"
	elif self.doc.order_type not in valid_types:
	msgprint(_(self.meta.get_label("order_type")) + " " +
	_("must be one of") + ": " + comma_or(valid_types), raise_exception=True)

	def check_credit(self, grand_total):
	customer_account = webnotes.conn.get_value("Account", {"company": self.doc.company,
	"master_name": self.doc.customer}, "name")
	if customer_account:
	total_outstanding = webnotes.conn.sql("""select
	sum(ifnull(debit, 0)) - sum(ifnull(credit, 0))
	from `tabGL Entry` where account = %s""", customer_account)
	total_outstanding = total_outstanding[0][0] if total_outstanding else 0

	outstanding_including_current = flt(total_outstanding) + flt(grand_total)
	webnotes.bean('Account', customer_account).run_method("check_credit_limit",
	outstanding_including_current)

	def validate_max_discount(self):
	for d in self.doclist.get({"parentfield": self.fname}):
	discount = flt(webnotes.conn.get_value("Item", d.item_code, "max_discount"))

	if discount and flt(d.adj_rate) > discount:
	webnotes.throw(_("You cannot give more than ") + cstr(discount) + "% " +
	_("discount on Item Code") + ": " + cstr(d.item_code))

	def get_item_list(self):
	il = []
	for d in self.doclist.get({"parentfield": self.fname}):
	reserved_warehouse = ""
	reserved_qty_for_main_item = 0

	if self.doc.doctype == "Sales Order":
	if (webnotes.conn.get_value("Item", d.item_code, "is_stock_item") == 'Yes' or
	self.has_sales_bom(d.item_code)) and not d.reserved_warehouse:
	webnotes.throw(_("Please enter Reserved Warehouse for item ") +
	d.item_code + _(" as it is stock Item or packing item"))
	reserved_warehouse = d.reserved_warehouse
	if flt(d.qty) > flt(d.delivered_qty):
	reserved_qty_for_main_item = flt(d.qty) - flt(d.delivered_qty)

	if self.doc.doctype == "Delivery Note" and d.against_sales_order:
	# if SO qty is 10 and there is tolerance of 20%, then it will allow DN of 12.
	# But in this case reserved qty should only be reduced by 10 and not 12

	already_delivered_qty = self.get_already_delivered_qty(self.doc.name,
	d.against_sales_order, d.prevdoc_detail_docname)
	so_qty, reserved_warehouse = self.get_so_qty_and_warehouse(d.prevdoc_detail_docname)

	if already_delivered_qty + d.qty > so_qty:
	reserved_qty_for_main_item = -(so_qty - already_delivered_qty)
	else:
	reserved_qty_for_main_item = -flt(d.qty)

	if self.has_sales_bom(d.item_code):
	for p in self.doclist.get({"parentfield": "packing_details"}):
	if p.parent_detail_docname == d.name and p.parent_item == d.item_code:
	# the packing details table's qty is already multiplied with parent's qty
	il.append(webnotes._dict({
	'warehouse': p.warehouse,
	'reserved_warehouse': reserved_warehouse,
	'item_code': p.item_code,
	'qty': flt(p.qty),
	'reserved_qty': (flt(p.qty)/flt(d.qty)) * reserved_qty_for_main_item,
	'uom': p.uom,
	'batch_no': cstr(p.batch_no).strip(),
	'serial_no': cstr(p.serial_no).strip(),
	'name': d.name
	}))
	else:
	il.append(webnotes._dict({
	'warehouse': d.warehouse,
	'reserved_warehouse': reserved_warehouse,
	'item_code': d.item_code,
	'qty': d.qty,
	'reserved_qty': reserved_qty_for_main_item,
	'uom': d.stock_uom,
	'batch_no': cstr(d.batch_no).strip(),
	'serial_no': cstr(d.serial_no).strip(),
	'name': d.name
	}))
	return il

	def has_sales_bom(self, item_code):
	return webnotes.conn.sql("""select name from `tabSales BOM`
	where new_item_code=%s and docstatus != 2""", item_code)

	def get_already_delivered_qty(self, dn, so, so_detail):
	qty = webnotes.conn.sql("""select sum(qty) from `tabDelivery Note Item`
	where prevdoc_detail_docname = %s and docstatus = 1
	and against_sales_order = %s
	and parent != %s""", (so_detail, so, dn))
	return qty and flt(qty[0][0]) or 0.0

	def get_so_qty_and_warehouse(self, so_detail):
	so_item = webnotes.conn.sql("""select qty, reserved_warehouse from `tabSales Order Item`
	where name = %s and docstatus = 1""", so_detail, as_dict=1)
	so_qty = so_item and flt(so_item[0]["qty"]) or 0.0
	so_warehouse = so_item and so_item[0]["reserved_warehouse"] or ""
	return so_qty, so_warehouse

	def check_stop_sales_order(self, ref_fieldname):
	for d in self.doclist.get({"parentfield": self.fname}):
	if d.fields.get(ref_fieldname):
	status = webnotes.conn.get_value("Sales Order", d.fields[ref_fieldname], "status")
	if status == "Stopped":
	webnotes.throw(self.doc.doctype +
	_(" can not be created/modified against stopped Sales Order ") +
	d.fields[ref_fieldname])

	def check_active_sales_items(obj):
	for d in obj.doclist.get({"parentfield": obj.fname}):
	if d.item_code:
	item = webnotes.conn.sql("""select docstatus, is_sales_item,
	is_service_item, default_income_account from tabItem where name = %s""",
	d.item_code, as_dict=True)[0]
	if item.is_sales_item == 'No' and item.is_service_item == 'No':
	webnotes.throw(_("Item is neither Sales nor Service Item") + ": " + d.item_code)
	if d.income_account and not item.default_income_account:
	webnotes.conn.set_value("Item", d.item_code, "default_income_account",
	d.income_account)