brotherton-erpnext/erpnext/utilities/product.py

135 lines
5.1 KiB
Python

# Copyright (c) 2015, Frappe Technologies Pvt. Ltd. and Contributors
# License: GNU General Public License v3. See license.txt
from __future__ import unicode_literals
import frappe
from frappe.utils import cint, fmt_money, flt, nowdate, getdate
from erpnext.accounts.doctype.pricing_rule.pricing_rule import get_pricing_rule_for_item
from erpnext.stock.doctype.batch.batch import get_batch_qty
def get_qty_in_stock(item_code, item_warehouse_field, warehouse=None):
in_stock, stock_qty = 0, ''
template_item_code, is_stock_item = frappe.db.get_value("Item", item_code, ["variant_of", "is_stock_item"])
if not warehouse:
warehouse = frappe.db.get_value("Item", item_code, item_warehouse_field)
if not warehouse and template_item_code and template_item_code != item_code:
warehouse = frappe.db.get_value("Item", template_item_code, item_warehouse_field)
if warehouse:
stock_qty = frappe.db.sql("""
select GREATEST(S.actual_qty - S.reserved_qty - S.reserved_qty_for_production - S.reserved_qty_for_sub_contract, 0) / IFNULL(C.conversion_factor, 1)
from tabBin S
inner join `tabItem` I on S.item_code = I.Item_code
left join `tabUOM Conversion Detail` C on I.sales_uom = C.uom and C.parent = I.Item_code
where S.item_code=%s and S.warehouse=%s""", (item_code, warehouse))
if stock_qty:
stock_qty = adjust_qty_for_expired_items(item_code, stock_qty, warehouse)
in_stock = stock_qty[0][0] > 0 and 1 or 0
return frappe._dict({"in_stock": in_stock, "stock_qty": stock_qty, "is_stock_item": is_stock_item})
def adjust_qty_for_expired_items(item_code, stock_qty, warehouse):
batches = frappe.get_all('Batch', filters=[{'item': item_code}], fields=['expiry_date', 'name'])
expired_batches = get_expired_batches(batches)
stock_qty = [list(item) for item in stock_qty]
for batch in expired_batches:
if warehouse:
stock_qty[0][0] = max(0, stock_qty[0][0] - get_batch_qty(batch, warehouse))
else:
stock_qty[0][0] = max(0, stock_qty[0][0] - qty_from_all_warehouses(get_batch_qty(batch)))
if not stock_qty[0][0]:
break
return stock_qty
def get_expired_batches(batches):
"""
:param batches: A list of dict in the form [{'expiry_date': datetime.date(20XX, 1, 1), 'name': 'batch_id'}, ...]
"""
return [b.name for b in batches if b.expiry_date and b.expiry_date <= getdate(nowdate())]
def qty_from_all_warehouses(batch_info):
"""
:param batch_info: A list of dict in the form [{u'warehouse': u'Stores - I', u'qty': 0.8}, ...]
"""
qty = 0
for batch in batch_info:
qty = qty + batch.qty
return qty
def get_price(item_code, price_list, customer_group, company, qty=1):
template_item_code = frappe.db.get_value("Item", item_code, "variant_of")
if price_list:
price = frappe.get_all("Item Price", fields=["price_list_rate", "currency"],
filters={"price_list": price_list, "item_code": item_code})
if template_item_code and not price:
price = frappe.get_all("Item Price", fields=["price_list_rate", "currency"],
filters={"price_list": price_list, "item_code": template_item_code})
if price:
pricing_rule = get_pricing_rule_for_item(frappe._dict({
"item_code": item_code,
"qty": qty,
"transaction_type": "selling",
"price_list": price_list,
"customer_group": customer_group,
"company": company,
"conversion_rate": 1,
"for_shopping_cart": True,
"currency": frappe.db.get_value("Price List", price_list, "currency")
}))
if pricing_rule:
if pricing_rule.pricing_rule_for == "Discount Percentage":
price[0].price_list_rate = flt(price[0].price_list_rate * (1.0 - (flt(pricing_rule.discount_percentage) / 100.0)))
if pricing_rule.pricing_rule_for == "Rate":
price[0].price_list_rate = pricing_rule.price_list_rate
price_obj = price[0]
if price_obj:
price_obj["formatted_price"] = fmt_money(price_obj["price_list_rate"], currency=price_obj["currency"])
price_obj["currency_symbol"] = not cint(frappe.db.get_default("hide_currency_symbol")) \
and (frappe.db.get_value("Currency", price_obj.currency, "symbol", cache=True) or price_obj.currency) \
or ""
uom_conversion_factor = frappe.db.sql("""select C.conversion_factor
from `tabUOM Conversion Detail` C
inner join `tabItem` I on C.parent = I.name and C.uom = I.sales_uom
where I.name = %s""", item_code)
uom_conversion_factor = uom_conversion_factor[0][0] if uom_conversion_factor else 1
price_obj["formatted_price_sales_uom"] = fmt_money(price_obj["price_list_rate"] * uom_conversion_factor, currency=price_obj["currency"])
if not price_obj["price_list_rate"]:
price_obj["price_list_rate"] = 0
if not price_obj["currency"]:
price_obj["currency"] = ""
if not price_obj["formatted_price"]:
price_obj["formatted_price"] = ""
return price_obj
def get_non_stock_item_status(item_code, item_warehouse_field):
#if item belongs to product bundle, check if bundle items are in stock
if frappe.db.exists("Product Bundle", item_code):
items = frappe.get_doc("Product Bundle", item_code).get_all_children()
return all([ get_qty_in_stock(d.item_code, item_warehouse_field).in_stock for d in items ])
else:
return 1