376 lines
13 KiB
Python
376 lines
13 KiB
Python
# ERPNext - web based ERP (http://erpnext.com)
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# Copyright (C) 2012 Web Notes Technologies Pvt Ltd
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#
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# This program is free software: you can redistribute it and/or modify
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# it under the terms of the GNU General Public License as published by
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# the Free Software Foundation, either version 3 of the License, or
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# (at your option) any later version.
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#
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# This program is distributed in the hope that it will be useful,
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# but WITHOUT ANY WARRANTY; without even the implied warranty of
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# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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# GNU General Public License for more details.
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#
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# You should have received a copy of the GNU General Public License
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# along with this program. If not, see <http://www.gnu.org/licenses/>.
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import webnotes
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from webnotes import msgprint, _
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import json
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from webnotes.utils import flt, cstr, nowdate, add_days, cint
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from webnotes.defaults import get_global_default
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from webnotes.utils.email_lib import sendmail
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def get_stock_balance_on(warehouse_list, posting_date=None):
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if not posting_date: posting_date = nowdate()
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stock_ledger_entries = webnotes.conn.sql("""
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SELECT
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item_code, warehouse, stock_value
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FROM
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`tabStock Ledger Entry`
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WHERE
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warehouse in (%s)
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AND posting_date <= %s
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ORDER BY timestamp(posting_date, posting_time) DESC, name DESC
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""" % (', '.join(['%s']*len(warehouse_list)), '%s'),
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tuple(warehouse_list + [posting_date]), as_dict=1)
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sle_map = {}
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for sle in stock_ledger_entries:
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sle_map.setdefault(sle.warehouse, {}).setdefault(sle.item_code, flt(sle.stock_value))
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return sum([sum(item_dict.values()) for item_dict in sle_map.values()])
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def get_latest_stock_balance(warehouse, item):
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return webnotes.conn.sql("""
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SELECT sum(stock_value)
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FROM tabBin
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where warehouse in (%s)
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""" % ', '.join(['%s']*len(warehouse_list)), warehouse_list)[0][0]
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def validate_end_of_life(item_code, end_of_life=None, verbose=1):
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if not end_of_life:
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end_of_life = webnotes.conn.get_value("Item", item_code, "end_of_life")
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from webnotes.utils import getdate, now_datetime, formatdate
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if end_of_life and getdate(end_of_life) <= now_datetime().date():
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msg = (_("Item") + " %(item_code)s: " + _("reached its end of life on") + \
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" %(date)s. " + _("Please check") + ": %(end_of_life_label)s " + \
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"in Item master") % {
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"item_code": item_code,
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"date": formatdate(end_of_life),
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"end_of_life_label": webnotes.get_doctype("Item").get_label("end_of_life")
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}
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_msgprint(msg, verbose)
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def validate_is_stock_item(item_code, is_stock_item=None, verbose=1):
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if not is_stock_item:
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is_stock_item = webnotes.conn.get_value("Item", item_code, "is_stock_item")
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if is_stock_item != "Yes":
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msg = (_("Item") + " %(item_code)s: " + _("is not a Stock Item")) % {
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"item_code": item_code,
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}
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_msgprint(msg, verbose)
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def validate_cancelled_item(item_code, docstatus=None, verbose=1):
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if docstatus is None:
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docstatus = webnotes.conn.get_value("Item", item_code, "docstatus")
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if docstatus == 2:
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msg = (_("Item") + " %(item_code)s: " + _("is a cancelled Item")) % {
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"item_code": item_code,
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}
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_msgprint(msg, verbose)
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def _msgprint(msg, verbose):
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if verbose:
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msgprint(msg, raise_exception=True)
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else:
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raise webnotes.ValidationError, msg
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def get_incoming_rate(args):
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"""Get Incoming Rate based on valuation method"""
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from stock.stock_ledger import get_previous_sle
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in_rate = 0
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if args.get("serial_no"):
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in_rate = get_avg_purchase_rate(args.get("serial_no"))
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elif args.get("bom_no"):
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result = webnotes.conn.sql("""select ifnull(total_cost, 0) / ifnull(quantity, 1)
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from `tabBOM` where name = %s and docstatus=1 and is_active=1""", args.get("bom_no"))
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in_rate = result and flt(result[0][0]) or 0
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else:
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valuation_method = get_valuation_method(args.get("item_code"))
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previous_sle = get_previous_sle(args)
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if valuation_method == 'FIFO':
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if not previous_sle:
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return 0.0
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previous_stock_queue = json.loads(previous_sle.get('stock_queue', '[]'))
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in_rate = previous_stock_queue and \
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get_fifo_rate(previous_stock_queue, args.get("qty") or 0) or 0
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elif valuation_method == 'Moving Average':
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in_rate = previous_sle.get('valuation_rate') or 0
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return in_rate
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def get_avg_purchase_rate(serial_nos):
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"""get average value of serial numbers"""
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serial_nos = get_valid_serial_nos(serial_nos)
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return flt(webnotes.conn.sql("""select avg(ifnull(purchase_rate, 0)) from `tabSerial No`
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where name in (%s)""" % ", ".join(["%s"] * len(serial_nos)),
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tuple(serial_nos))[0][0])
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def get_valuation_method(item_code):
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"""get valuation method from item or default"""
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val_method = webnotes.conn.get_value('Item', item_code, 'valuation_method')
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if not val_method:
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val_method = get_global_default('valuation_method') or "FIFO"
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return val_method
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def get_fifo_rate(previous_stock_queue, qty):
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"""get FIFO (average) Rate from Queue"""
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if qty >= 0:
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total = sum(f[0] for f in previous_stock_queue)
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return total and sum(f[0] * f[1] for f in previous_stock_queue) / flt(total) or 0.0
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else:
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outgoing_cost = 0
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qty_to_pop = abs(qty)
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while qty_to_pop and previous_stock_queue:
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batch = previous_stock_queue[0]
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if 0 < batch[0] <= qty_to_pop:
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# if batch qty > 0
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# not enough or exactly same qty in current batch, clear batch
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outgoing_cost += flt(batch[0]) * flt(batch[1])
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qty_to_pop -= batch[0]
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previous_stock_queue.pop(0)
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else:
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# all from current batch
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outgoing_cost += flt(qty_to_pop) * flt(batch[1])
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batch[0] -= qty_to_pop
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qty_to_pop = 0
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# if queue gets blank and qty_to_pop remaining, get average rate of full queue
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return outgoing_cost / abs(qty) - qty_to_pop
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def get_valid_serial_nos(sr_nos, qty=0, item_code=''):
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"""split serial nos, validate and return list of valid serial nos"""
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# TODO: remove duplicates in client side
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serial_nos = cstr(sr_nos).strip().replace(',', '\n').split('\n')
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valid_serial_nos = []
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for val in serial_nos:
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if val:
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val = val.strip()
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if val in valid_serial_nos:
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msgprint("You have entered duplicate serial no: '%s'" % val, raise_exception=1)
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else:
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valid_serial_nos.append(val)
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if qty and len(valid_serial_nos) != abs(qty):
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msgprint("Please enter serial nos for "
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+ cstr(abs(qty)) + " quantity against item code: " + item_code,
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raise_exception=1)
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return valid_serial_nos
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def get_warehouse_list(doctype, txt, searchfield, start, page_len, filters):
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"""used in search queries"""
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wlist = []
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for w in webnotes.conn.sql_list("""select name from tabWarehouse
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where name like '%%%s%%'""" % txt):
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if webnotes.session.user=="Administrator":
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wlist.append([w])
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else:
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warehouse_users = webnotes.conn.sql_list("""select user from `tabWarehouse User`
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where parent=%s""", w)
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if not warehouse_users:
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wlist.append([w])
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elif webnotes.session.user in warehouse_users:
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wlist.append([w])
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return wlist
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def get_buying_amount(item_code, warehouse, qty, voucher_type, voucher_no, voucher_detail_no,
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stock_ledger_entries, item_sales_bom=None):
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if item_sales_bom and item_sales_bom.get(item_code):
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# sales bom item
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buying_amount = 0.0
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for bom_item in item_sales_bom[item_code]:
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if bom_item.get("parent_detail_docname")==voucher_detail_no:
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buying_amount += _get_buying_amount(voucher_type, voucher_no, voucher_detail_no,
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bom_item.item_code, bom_item.warehouse or warehouse,
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bom_item.total_qty or (bom_item.qty * qty), stock_ledger_entries)
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return buying_amount
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else:
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# doesn't have sales bom
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return _get_buying_amount(voucher_type, voucher_no, voucher_detail_no,
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item_code, warehouse, qty, stock_ledger_entries)
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def _get_buying_amount(voucher_type, voucher_no, item_row, item_code, warehouse, qty,
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stock_ledger_entries):
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relevant_stock_ledger_entries = [sle for sle in stock_ledger_entries
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if sle.item_code == item_code and sle.warehouse == warehouse]
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for i, sle in enumerate(relevant_stock_ledger_entries):
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if sle.voucher_type == voucher_type and sle.voucher_no == voucher_no and \
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sle.voucher_detail_no == item_row:
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previous_stock_value = len(relevant_stock_ledger_entries) > i+1 and \
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flt(relevant_stock_ledger_entries[i+1].stock_value) or 0.0
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buying_amount = previous_stock_value - flt(sle.stock_value)
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return buying_amount
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return 0.0
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def reorder_item():
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""" Reorder item if stock reaches reorder level"""
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if not hasattr(webnotes, "auto_indent"):
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webnotes.auto_indent = webnotes.conn.get_value('Stock Settings', None, 'auto_indent')
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if webnotes.auto_indent:
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material_requests = {}
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bin_list = webnotes.conn.sql("""select item_code, warehouse, projected_qty
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from tabBin where ifnull(item_code, '') != '' and ifnull(warehouse, '') != ''
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and exists (select name from `tabItem`
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where `tabItem`.name = `tabBin`.item_code and
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is_stock_item='Yes' and (is_purchase_item='Yes' or is_sub_contracted_item='Yes') and
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(ifnull(end_of_life, '')='') or end_of_life > now())""",
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as_dict=True)
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for bin in bin_list:
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#check if re-order is required
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item_reorder = webnotes.conn.get("Item Reorder",
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{"parent": bin.item_code, "warehouse": bin.warehouse})
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if item_reorder:
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reorder_level = item_reorder.warehouse_reorder_level
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reorder_qty = item_reorder.warehouse_reorder_qty
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material_request_type = item_reorder.material_request_type or "Purchase"
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else:
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reorder_level, reorder_qty = webnotes.conn.get_value("Item", bin.item_code,
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["re_order_level", "re_order_qty"])
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material_request_type = "Purchase"
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if flt(reorder_level) and flt(bin.projected_qty) < flt(reorder_level):
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if flt(reorder_level) - flt(bin.projected_qty) > flt(reorder_qty):
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reorder_qty = flt(reorder_level) - flt(bin.projected_qty)
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company = webnotes.conn.get_value("Warehouse", bin.warehouse, "company") or \
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webnotes.defaults.get_defaults()["company"] or \
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webnotes.conn.sql("""select name from tabCompany limit 1""")[0][0]
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material_requests.setdefault(material_request_type, webnotes._dict()).setdefault(
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company, []).append(webnotes._dict({
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"item_code": bin.item_code,
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"warehouse": bin.warehouse,
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"reorder_qty": reorder_qty
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})
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)
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create_material_request(material_requests)
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def create_material_request(material_requests):
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""" Create indent on reaching reorder level """
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mr_list = []
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defaults = webnotes.defaults.get_defaults()
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exceptions_list = []
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for request_type in material_requests:
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for company in material_requests[request_type]:
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try:
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items = material_requests[request_type][company]
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if not items:
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continue
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mr = [{
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"doctype": "Material Request",
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"company": company,
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"fiscal_year": defaults.fiscal_year,
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"transaction_date": nowdate(),
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"material_request_type": request_type,
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"remark": _("This is an auto generated Material Request.") + \
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_("""It was raised because the (actual + ordered + indented - reserved)
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quantity reaches re-order level when the following record was created""")
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}]
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for d in items:
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item = webnotes.doc("Item", d.item_code)
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mr.append({
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"doctype": "Material Request Item",
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"parenttype": "Material Request",
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"parentfield": "indent_details",
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"item_code": d.item_code,
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"schedule_date": add_days(nowdate(),cint(item.lead_time_days)),
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"uom": item.stock_uom,
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"warehouse": d.warehouse,
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"item_name": item.item_name,
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"description": item.description,
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"item_group": item.item_group,
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"qty": d.reorder_qty,
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"brand": item.brand,
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})
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mr_bean = webnotes.bean(mr)
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mr_bean.insert()
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mr_bean.submit()
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mr_list.append(mr_bean)
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except:
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if webnotes.message_log:
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exceptions_list.append([] + webnotes.message_log)
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webnotes.message_log = []
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else:
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exceptions_list.append(webnotes.getTraceback())
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if mr_list:
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if not hasattr(webnotes, "reorder_email_notify"):
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webnotes.reorder_email_notify = webnotes.conn.get_value('Stock Settings', None,
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'reorder_email_notify')
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if(webnotes.reorder_email_notify):
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send_email_notification(mr_list)
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if exceptions_list:
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notify_errors(exceptions_list)
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def send_email_notification(mr_list):
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""" Notify user about auto creation of indent"""
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email_list = webnotes.conn.sql_list("""select distinct r.parent
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from tabUserRole r, tabProfile p
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where p.name = r.parent and p.enabled = 1 and p.docstatus < 2
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and r.role in ('Purchase Manager','Material Manager')
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and p.name not in ('Administrator', 'All', 'Guest')""")
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msg="""<h3>Following Material Requests has been raised automatically \
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based on item reorder level:</h3>"""
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for mr in mr_list:
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msg += "<p><b><u>" + mr.doc.name + """</u></b></p><table class='table table-bordered'><tr>
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<th>Item Code</th><th>Warehouse</th><th>Qty</th><th>UOM</th></tr>"""
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for item in mr.doclist.get({"parentfield": "indent_details"}):
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msg += "<tr><td>" + item.item_code + "</td><td>" + item.warehouse + "</td><td>" + \
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cstr(item.qty) + "</td><td>" + cstr(item.uom) + "</td></tr>"
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msg += "</table>"
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sendmail(email_list, subject='Auto Material Request Generation Notification', msg = msg)
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def notify_errors(exceptions_list):
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subject = "[Important] [ERPNext] Error(s) while creating Material Requests based on Re-order Levels"
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msg = """Dear System Manager,
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An error occured for certain Items while creating Material Requests based on Re-order level.
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Please rectify these issues:
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---
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%s
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---
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Regards,
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Administrator""" % ("\n\n".join(["\n".join(msg) for msg in exceptions_list]),)
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from webnotes.profile import get_system_managers
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sendmail(get_system_managers(), subject=subject, msg=msg)
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