411 lines
14 KiB
Python
411 lines
14 KiB
Python
# Copyright (c) 2013, Web Notes Technologies Pvt. Ltd. and Contributors
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# License: GNU General Public License v3. See license.txt
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from __future__ import unicode_literals
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import frappe
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from frappe import _, throw
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from frappe.utils import flt, cint, add_days
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import json
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class MultiplePricingRuleConflict(frappe.ValidationError): pass
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@frappe.whitelist()
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def get_item_details(args):
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"""
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args = {
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"item_code": "",
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"warehouse": None,
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"customer": "",
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"conversion_rate": 1.0,
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"selling_price_list": None,
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"price_list_currency": None,
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"plc_conversion_rate": 1.0,
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"doctype": "",
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"docname": "",
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"supplier": None,
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"transaction_date": None,
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"conversion_rate": 1.0,
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"buying_price_list": None,
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"is_subcontracted": "Yes" / "No",
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"transaction_type": "selling"
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}
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"""
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if isinstance(args, basestring):
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args = json.loads(args)
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args = frappe._dict(args)
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if not args.get("transaction_type"):
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if args.get("doctype")=="Material Request" or frappe.get_meta(args.get("doctype")).get_field("supplier"):
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args.transaction_type = "buying"
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else:
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args.transaction_type = "selling"
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if not args.get("price_list"):
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args.price_list = args.get("selling_price_list") or args.get("buying_price_list")
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if args.barcode:
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args.item_code = get_item_code(barcode=args.barcode)
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elif not args.item_code and args.serial_no:
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args.item_code = get_item_code(serial_no=args.serial_no)
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item_doc = frappe.get_doc("Item", args.item_code)
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item = item_doc
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validate_item_details(args, item)
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out = get_basic_details(args, item_doc)
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get_party_item_code(args, item_doc, out)
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if out.get("warehouse"):
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out.update(get_available_qty(args.item_code, out.warehouse))
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out.update(get_projected_qty(item.name, out.warehouse))
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get_price_list_rate(args, item_doc, out)
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if args.transaction_type == "selling" and cint(args.is_pos):
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out.update(get_pos_settings_item_details(args.company, args))
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# update args with out, if key or value not exists
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for key, value in out.iteritems():
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if args.get(key) is None:
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args[key] = value
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out.update(apply_pricing_rule(args))
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if args.get("doctype") in ("Sales Invoice", "Delivery Note"):
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if item_doc.has_serial_no == "Yes" and not args.serial_no:
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out.serial_no = get_serial_nos_by_fifo(args, item_doc)
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if args.transaction_date and item.lead_time_days:
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out.schedule_date = out.lead_time_date = add_days(args.transaction_date,
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item.lead_time_days)
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return out
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def get_item_code(barcode=None, serial_no=None):
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if barcode:
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item_code = frappe.db.get_value("Item", {"barcode": barcode})
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if not item_code:
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frappe.throw(_("No Item with Barcode {0}").format(barcode))
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elif serial_no:
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item_code = frappe.db.get_value("Serial No", serial_no, "item_code")
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if not item_code:
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frappe.throw(_("No Item with Serial No {0}").format(serial_no))
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return item_code
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def validate_item_details(args, item):
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if not args.company:
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throw(_("Please specify Company"))
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from erpnext.stock.doctype.item.item import validate_end_of_life
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validate_end_of_life(item.name, item.end_of_life)
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if args.transaction_type == "selling":
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# validate if sales item or service item
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if args.get("order_type") == "Maintenance":
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if item.is_service_item != "Yes":
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throw(_("Item {0} must be a Service Item.").format(item.name))
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elif item.is_sales_item != "Yes":
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throw(_("Item {0} must be a Sales Item").format(item.name))
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elif args.transaction_type == "buying" and args.doctype != "Material Request":
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# validate if purchase item or subcontracted item
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if item.is_purchase_item != "Yes":
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throw(_("Item {0} must be a Purchase Item").format(item.name))
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if args.get("is_subcontracted") == "Yes" and item.is_sub_contracted_item != "Yes":
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throw(_("Item {0} must be a Sub-contracted Item").format(item.name))
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def get_basic_details(args, item_doc):
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item = item_doc
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from frappe.defaults import get_user_default_as_list
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user_default_warehouse_list = get_user_default_as_list('warehouse')
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user_default_warehouse = user_default_warehouse_list[0] \
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if len(user_default_warehouse_list)==1 else ""
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out = frappe._dict({
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"item_code": item.name,
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"item_name": item.item_name,
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"description": item.description_html or item.description,
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"warehouse": user_default_warehouse or args.warehouse or item.default_warehouse,
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"income_account": item.income_account or args.income_account \
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or frappe.db.get_value("Company", args.company, "default_income_account"),
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"expense_account": item.expense_account or args.expense_account \
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or frappe.db.get_value("Company", args.company, "default_expense_account"),
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"cost_center": item.selling_cost_center \
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if args.transaction_type == "selling" else item.buying_cost_center,
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"batch_no": None,
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"item_tax_rate": json.dumps(dict(([d.tax_type, d.tax_rate] for d in
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item_doc.get("item_tax")))),
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"uom": item.stock_uom,
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"min_order_qty": flt(item.min_order_qty) if args.doctype == "Material Request" else "",
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"conversion_factor": 1.0,
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"qty": 1.0,
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"price_list_rate": 0.0,
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"base_price_list_rate": 0.0,
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"rate": 0.0,
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"base_rate": 0.0,
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"amount": 0.0,
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"base_amount": 0.0,
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"discount_percentage": 0.0
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})
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for fieldname in ("item_name", "item_group", "barcode", "brand", "stock_uom"):
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out[fieldname] = item.get(fieldname)
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return out
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def get_price_list_rate(args, item_doc, out):
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meta = frappe.get_meta(args.doctype)
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if meta.get_field("currency"):
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validate_price_list(args)
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validate_conversion_rate(args, meta)
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price_list_rate = frappe.db.get_value("Item Price",
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{"price_list": args.price_list, "item_code": args.item_code}, "price_list_rate")
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if not price_list_rate: return {}
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out.price_list_rate = flt(price_list_rate) * flt(args.plc_conversion_rate) \
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/ flt(args.conversion_rate)
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if not out.price_list_rate and args.transaction_type == "buying":
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from erpnext.stock.doctype.item.item import get_last_purchase_details
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out.update(get_last_purchase_details(item_doc.name,
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args.docname, args.conversion_rate))
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def validate_price_list(args):
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if args.get("price_list"):
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if not frappe.db.get_value("Price List",
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{"name": args.price_list, args.transaction_type: 1, "enabled": 1}):
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throw(_("Price List {0} is disabled").format(args.price_list))
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else:
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throw(_("Price List not selected"))
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def validate_conversion_rate(args, meta):
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from erpnext.setup.doctype.currency.currency import validate_conversion_rate
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from frappe.model.meta import get_field_precision
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# validate currency conversion rate
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validate_conversion_rate(args.currency, args.conversion_rate,
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meta.get_label("conversion_rate"), args.company)
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args.conversion_rate = flt(args.conversion_rate,
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get_field_precision(meta.get_field("conversion_rate"),
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frappe._dict({"fields": args})))
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# validate price list currency conversion rate
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if not args.get("price_list_currency"):
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throw(_("Price List Currency not selected"))
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else:
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validate_conversion_rate(args.price_list_currency, args.plc_conversion_rate,
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meta.get_label("plc_conversion_rate"), args.company)
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args.plc_conversion_rate = flt(args.plc_conversion_rate,
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get_field_precision(meta.get_field("plc_conversion_rate"),
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frappe._dict({"fields": args})))
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def get_party_item_code(args, item_doc, out):
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if args.transaction_type == "selling":
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customer_item_code = item_doc.get("item_customer_details", {"customer_name": args.customer})
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out.customer_item_code = customer_item_code[0].ref_code if customer_item_code else None
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else:
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item_supplier = item_doc.get("item_supplier_details", {"supplier": args.supplier})
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out.supplier_part_no = item_supplier[0].supplier_part_no if item_supplier else None
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def get_pos_settings_item_details(company, args, pos_settings=None):
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res = frappe._dict()
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if not pos_settings:
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pos_settings = get_pos_settings(company)
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if pos_settings:
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for fieldname in ("income_account", "cost_center", "warehouse", "expense_account"):
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if not args.get(fieldname) and pos_settings.get(fieldname):
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res[fieldname] = pos_settings.get(fieldname)
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if res.get("warehouse"):
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res.actual_qty = get_available_qty(args.item_code,
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res.warehouse).get("actual_qty")
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return res
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def get_pos_settings(company):
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pos_settings = frappe.db.sql("""select * from `tabPOS Setting` where user = %s
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and company = %s""", (frappe.session['user'], company), as_dict=1)
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if not pos_settings:
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pos_settings = frappe.db.sql("""select * from `tabPOS Setting`
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where ifnull(user,'') = '' and company = %s""", company, as_dict=1)
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return pos_settings and pos_settings[0] or None
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@frappe.whitelist()
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def apply_pricing_rule(args):
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if isinstance(args, basestring):
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args = json.loads(args)
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args = frappe._dict(args)
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out = frappe._dict()
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if args.get("doctype") == "Material Request" or not args.get("item_code"): return out
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if not args.get("item_group") or not args.get("brand"):
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args.item_group, args.brand = frappe.db.get_value("Item",
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args.item_code, ["item_group", "brand"])
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if args.get("customer") and (not args.get("customer_group") or not args.get("territory")):
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args.customer_group, args.territory = frappe.db.get_value("Customer",
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args.customer, ["customer_group", "territory"])
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if args.get("supplier") and not args.get("supplier_type"):
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args.supplier_type = frappe.db.get_value("Supplier", args.supplier, "supplier_type")
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pricing_rules = get_pricing_rules(args)
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pricing_rule = filter_pricing_rules(args, pricing_rules)
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if pricing_rule:
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out.pricing_rule = pricing_rule.name
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if pricing_rule.price_or_discount == "Price":
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out.base_price_list_rate = pricing_rule.price
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out.price_list_rate = pricing_rule.price*flt(args.plc_conversion_rate)/flt(args.conversion_rate)
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out.base_rate = out.base_price_list_rate
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out.rate = out.price_list_rate
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out.discount_percentage = 0.0
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else:
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out.discount_percentage = pricing_rule.discount_percentage
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else:
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out.pricing_rule = None
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return out
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def get_pricing_rules(args):
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def _get_tree_conditions(doctype, allow_blank=True):
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field = frappe.scrub(doctype)
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condition = ""
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if args.get(field):
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lft, rgt = frappe.db.get_value(doctype, args[field], ["lft", "rgt"])
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parent_groups = frappe.db.sql_list("""select name from `tab%s`
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where lft<=%s and rgt>=%s""" % (doctype, '%s', '%s'), (lft, rgt))
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if parent_groups:
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if allow_blank: parent_groups.append('')
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condition = " ifnull("+field+", '') in ('" + "', '".join(parent_groups)+"')"
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return condition
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conditions = ""
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for field in ["company", "customer", "supplier", "supplier_type", "campaign", "sales_partner"]:
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if args.get(field):
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conditions += " and ifnull("+field+", '') in (%("+field+")s, '')"
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else:
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conditions += " and ifnull("+field+", '') = ''"
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for doctype in ["Customer Group", "Territory"]:
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group_condition = _get_tree_conditions(doctype)
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if group_condition:
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conditions += " and " + group_condition
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conditions += " and ifnull(for_price_list, '') in (%(price_list)s, '')"
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if args.get("transaction_date"):
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conditions += """ and %(transaction_date)s between ifnull(valid_from, '2000-01-01')
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and ifnull(valid_upto, '2500-12-31')"""
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return frappe.db.sql("""select * from `tabPricing Rule`
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where (item_code=%(item_code)s or {item_group_condition} or brand=%(brand)s)
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and docstatus < 2 and ifnull(disable, 0) = 0 {conditions}
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order by priority desc, name desc""".format(
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item_group_condition=_get_tree_conditions("Item Group", False), conditions=conditions),
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args, as_dict=1)
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def filter_pricing_rules(args, pricing_rules):
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# filter for qty
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if pricing_rules and args.get("qty"):
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pricing_rules = filter(lambda x: (args.qty>=flt(x.min_qty)
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and (args.qty<=x.max_qty if x.max_qty else True)), pricing_rules)
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# find pricing rule with highest priority
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if pricing_rules:
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max_priority = max([cint(p.priority) for p in pricing_rules])
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if max_priority:
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pricing_rules = filter(lambda x: cint(x.priority)==max_priority, pricing_rules)
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# apply internal priority
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all_fields = ["item_code", "item_group", "brand", "customer", "customer_group", "territory",
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"supplier", "supplier_type", "campaign", "sales_partner"]
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if len(pricing_rules) > 1:
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for field_set in [["item_code", "item_group", "brand"],
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["customer", "customer_group", "territory"], ["supplier", "supplier_type"]]:
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remaining_fields = list(set(all_fields) - set(field_set))
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if if_all_rules_same(pricing_rules, remaining_fields):
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pricing_rules = apply_internal_priority(pricing_rules, field_set, args)
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break
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if len(pricing_rules) > 1:
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price_or_discount = list(set([d.price_or_discount for d in pricing_rules]))
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if len(price_or_discount) == 1 and price_or_discount[0] == "Discount Percentage":
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pricing_rules = filter(lambda x: x.for_price_list==args.price_list, pricing_rules) \
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or pricing_rules
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if len(pricing_rules) > 1:
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frappe.throw(_("Multiple Price Rule exists with same criteria, please resolve \
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conflict by assigning priority. Price Rules: {0}")
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.format("\n".join([d.name for d in pricing_rules])), MultiplePricingRuleConflict)
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elif pricing_rules:
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return pricing_rules[0]
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def if_all_rules_same(pricing_rules, fields):
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all_rules_same = True
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val = [pricing_rules[0][k] for k in fields]
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for p in pricing_rules[1:]:
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if val != [p[k] for k in fields]:
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all_rules_same = False
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break
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return all_rules_same
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def apply_internal_priority(pricing_rules, field_set, args):
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filtered_rules = []
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for field in field_set:
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if args.get(field):
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filtered_rules = filter(lambda x: x[field]==args[field], pricing_rules)
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if filtered_rules: break
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return filtered_rules or pricing_rules
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def get_serial_nos_by_fifo(args, item_doc):
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return "\n".join(frappe.db.sql_list("""select name from `tabSerial No`
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where item_code=%(item_code)s and warehouse=%(warehouse)s and status='Available'
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order by timestamp(purchase_date, purchase_time) asc limit %(qty)s""", {
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"item_code": args.item_code,
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"warehouse": args.warehouse,
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"qty": cint(args.qty)
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}))
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@frappe.whitelist()
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def get_conversion_factor(item_code, uom):
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return {"conversion_factor": frappe.db.get_value("UOM Conversion Detail",
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{"parent": item_code, "uom": uom}, "conversion_factor")}
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@frappe.whitelist()
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def get_projected_qty(item_code, warehouse):
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return {"projected_qty": frappe.db.get_value("Bin",
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{"item_code": item_code, "warehouse": warehouse}, "projected_qty")}
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@frappe.whitelist()
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def get_available_qty(item_code, warehouse):
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return frappe.db.get_value("Bin", {"item_code": item_code, "warehouse": warehouse},
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["projected_qty", "actual_qty"], as_dict=True) or {}
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