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620 lines
19 KiB
Python
620 lines
19 KiB
Python
# Copyright (c) 2015, Frappe Technologies Pvt. Ltd. and Contributors
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# License: GNU General Public License v3. See license.txt
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from collections.abc import Iterator
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from operator import itemgetter
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import frappe
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from frappe import _
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from frappe.query_builder.functions import Count
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from frappe.utils import cint, date_diff, flt, get_datetime
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from erpnext.stock.doctype.serial_no.serial_no import get_serial_nos
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Filters = frappe._dict
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def execute(filters: Filters = None) -> tuple:
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to_date = filters["to_date"]
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filters.ranges = [num.strip() for num in filters.range.split(",") if num.strip().isdigit()]
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columns = get_columns(filters)
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item_details = FIFOSlots(filters).generate()
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data = format_report_data(filters, item_details, to_date)
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chart_data = get_chart_data(data, filters)
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return columns, data, None, chart_data
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def format_report_data(filters: Filters, item_details: dict, to_date: str) -> list[dict]:
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"Returns ordered, formatted data with ranges."
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_func = itemgetter(1)
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data = []
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precision = cint(frappe.db.get_single_value("System Settings", "float_precision", cache=True))
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for _item, item_dict in item_details.items():
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if not flt(item_dict.get("total_qty"), precision):
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continue
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earliest_age, latest_age = 0, 0
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details = item_dict["details"]
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fifo_queue = sorted(filter(_func, item_dict["fifo_queue"]), key=_func)
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if not fifo_queue:
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continue
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average_age = get_average_age(fifo_queue, to_date)
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earliest_age = date_diff(to_date, fifo_queue[0][1])
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latest_age = date_diff(to_date, fifo_queue[-1][1])
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range_values = get_range_age(filters, fifo_queue, to_date, item_dict)
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check_and_replace_valuations_if_moving_average(
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range_values, details.valuation_method, details.valuation_rate, filters.get("company")
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)
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row = [details.name, details.item_name, details.description, details.item_group, details.brand]
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if filters.get("show_warehouse_wise_stock"):
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row.append(details.warehouse)
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row.extend(
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[
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flt(item_dict.get("total_qty"), precision),
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average_age,
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*range_values,
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earliest_age,
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latest_age,
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details.stock_uom,
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]
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)
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data.append(row)
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return data
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def check_and_replace_valuations_if_moving_average(
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range_values, item_valuation_method, valuation_rate, company
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):
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if item_valuation_method == "Moving Average" or (
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not item_valuation_method
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and frappe.get_cached_value("Company", company, "valuation_method") == "Moving Average"
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):
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for i in range(0, len(range_values), 2):
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range_values[i + 1] = range_values[i] * valuation_rate
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def get_average_age(fifo_queue: list, to_date: str) -> float:
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batch_age = age_qty = total_qty = 0.0
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for batch in fifo_queue:
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batch_age = date_diff(to_date, batch[1])
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if isinstance(batch[0], int | float):
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age_qty += batch_age * batch[0]
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total_qty += batch[0]
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else:
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age_qty += batch_age * 1
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total_qty += 1
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return flt(age_qty / total_qty, 2) if total_qty else 0.0
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def get_range_age(filters: Filters, fifo_queue: list, to_date: str, item_dict: dict) -> list:
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precision = cint(frappe.db.get_single_value("System Settings", "float_precision", cache=True))
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range_values = [0.0] * ((len(filters.ranges) * 2) + 2)
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for item in fifo_queue:
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age = flt(date_diff(to_date, item[1]))
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qty = flt(item[0]) if not item_dict["has_serial_no"] else 1.0
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stock_value = flt(item[2])
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for i, age_limit in enumerate(filters.ranges):
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if age <= flt(age_limit):
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i *= 2
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range_values[i] = flt(range_values[i] + qty, precision)
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range_values[i + 1] = flt(range_values[i + 1] + stock_value, precision)
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break
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else:
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range_values[-2] = flt(range_values[-2] + qty, precision)
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range_values[-1] = flt(range_values[-1] + stock_value, precision)
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return range_values
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def get_columns(filters: Filters) -> list[dict]:
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range_columns = []
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setup_ageing_columns(filters, range_columns)
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columns = [
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{
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"label": _("Item Code"),
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"fieldname": "item_code",
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"fieldtype": "Link",
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"options": "Item",
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"width": 100,
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},
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{"label": _("Item Name"), "fieldname": "item_name", "fieldtype": "Data", "width": 100},
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{"label": _("Description"), "fieldname": "description", "fieldtype": "Data", "width": 200},
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{
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"label": _("Item Group"),
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"fieldname": "item_group",
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"fieldtype": "Link",
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"options": "Item Group",
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"width": 100,
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},
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{
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"label": _("Brand"),
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"fieldname": "brand",
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"fieldtype": "Link",
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"options": "Brand",
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"width": 100,
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},
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]
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if filters.get("show_warehouse_wise_stock"):
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columns += [
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{
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"label": _("Warehouse"),
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"fieldname": "warehouse",
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"fieldtype": "Link",
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"options": "Warehouse",
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"width": 100,
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}
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]
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columns.extend(
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[
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{"label": _("Available Qty"), "fieldname": "qty", "fieldtype": "Float", "width": 100},
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{"label": _("Average Age"), "fieldname": "average_age", "fieldtype": "Float", "width": 100},
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]
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)
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columns.extend(range_columns)
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columns.extend(
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[
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{"label": _("Earliest"), "fieldname": "earliest", "fieldtype": "Int", "width": 80},
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{"label": _("Latest"), "fieldname": "latest", "fieldtype": "Int", "width": 80},
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{"label": _("UOM"), "fieldname": "uom", "fieldtype": "Link", "options": "UOM", "width": 100},
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]
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)
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return columns
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def get_chart_data(data: list, filters: Filters) -> dict:
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if not data:
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return []
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labels, datapoints = [], []
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if filters.get("show_warehouse_wise_stock"):
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return {}
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data.sort(key=lambda row: row[6], reverse=True)
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if len(data) > 10:
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data = data[:10]
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for row in data:
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labels.append(row[0])
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datapoints.append(row[6])
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return {
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"data": {"labels": labels, "datasets": [{"name": _("Average Age"), "values": datapoints}]},
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"type": "bar",
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}
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def setup_ageing_columns(filters: Filters, range_columns: list):
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prev_range_value = 0
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ranges = []
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for range in filters.ranges:
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ranges.append(f"{prev_range_value} - {range}")
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prev_range_value = cint(range) + 1
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ranges.append(f"{prev_range_value} - Above")
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for i, label in enumerate(ranges):
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fieldname = "range" + str(i + 1)
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add_column(range_columns, label=_("Age ({0})").format(label), fieldname=fieldname)
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add_column(range_columns, label=_("Value ({0})").format(label), fieldname=fieldname + "value")
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def add_column(range_columns: list, label: str, fieldname: str, fieldtype: str = "Float", width: int = 140):
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range_columns.append(dict(label=label, fieldname=fieldname, fieldtype=fieldtype, width=width))
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class FIFOSlots:
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"Returns FIFO computed slots of inwarded stock as per date."
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def __init__(self, filters: dict | None = None, sle: list | None = None):
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self.item_details = {}
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self.transferred_item_details = {}
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self.serial_no_batch_purchase_details = {}
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self.filters = filters
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self.sle = sle
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def generate(self) -> dict:
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"""
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Returns dict of the foll.g structure:
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Key = Item A / (Item A, Warehouse A)
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Key: {
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'details' -> Dict: ** item details **,
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'fifo_queue' -> List: ** list of lists containing entries/slots for existing stock,
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consumed/updated and maintained via FIFO. **
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}
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"""
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from erpnext.stock.serial_batch_bundle import get_serial_nos_from_bundle
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stock_ledger_entries = self.sle
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bundle_wise_serial_nos = frappe._dict({})
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if stock_ledger_entries is None:
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bundle_wise_serial_nos = self.__get_bundle_wise_serial_nos()
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# prepare single sle voucher detail lookup
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self.prepare_stock_reco_voucher_wise_count()
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with frappe.db.unbuffered_cursor():
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if stock_ledger_entries is None:
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stock_ledger_entries = self.__get_stock_ledger_entries()
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for d in stock_ledger_entries:
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key, fifo_queue, transferred_item_key = self.__init_key_stores(d)
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prev_balance_qty = self.item_details[key].get("qty_after_transaction", 0)
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if d.voucher_type == "Stock Reconciliation" and (
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not d.batch_no or d.serial_no or d.serial_and_batch_bundle
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):
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if d.voucher_detail_no in self.stock_reco_voucher_wise_count:
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# for legacy recon with single sle has qty_after_transaction and stock_value_difference without outward entry
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# for exisitng handle emptying the existing queue and details.
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d.stock_value_difference = flt(d.qty_after_transaction * d.valuation_rate)
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d.actual_qty = d.qty_after_transaction
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self.item_details[key]["qty_after_transaction"] = 0
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self.item_details[key]["total_qty"] = 0
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fifo_queue.clear()
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else:
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d.actual_qty = flt(d.qty_after_transaction) - flt(prev_balance_qty)
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elif d.voucher_type == "Stock Reconciliation":
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# get difference in qty shift as actual qty
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d.actual_qty = flt(d.qty_after_transaction) - flt(prev_balance_qty)
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serial_nos = get_serial_nos(d.serial_no) if d.serial_no else []
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if d.serial_and_batch_bundle and d.has_serial_no:
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if bundle_wise_serial_nos:
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serial_nos = bundle_wise_serial_nos.get(d.serial_and_batch_bundle) or []
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else:
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serial_nos = sorted(get_serial_nos_from_bundle(d.serial_and_batch_bundle)) or []
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serial_nos = self.uppercase_serial_nos(serial_nos)
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if d.actual_qty > 0:
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self.__compute_incoming_stock(d, fifo_queue, transferred_item_key, serial_nos)
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else:
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self.__compute_outgoing_stock(d, fifo_queue, transferred_item_key, serial_nos)
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self.__update_balances(d, key)
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# handle serial nos misconsumption
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if d.has_serial_no:
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qty_after = cint(self.item_details[key]["qty_after_transaction"])
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if qty_after <= 0:
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fifo_queue.clear()
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elif len(fifo_queue) > qty_after:
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fifo_queue[:] = fifo_queue[:qty_after]
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# Note that stock_ledger_entries is an iterator, you can not reuse it like a list
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del stock_ledger_entries
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if not self.filters.get("show_warehouse_wise_stock"):
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# (Item 1, WH 1), (Item 1, WH 2) => (Item 1)
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self.item_details = self.__aggregate_details_by_item(self.item_details)
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return self.item_details
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def uppercase_serial_nos(self, serial_nos):
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"Convert serial nos to uppercase for uniformity."
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return [sn.upper() for sn in serial_nos]
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def __init_key_stores(self, row: dict) -> tuple:
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"Initialise keys and FIFO Queue."
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key = (row.name, row.warehouse)
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self.item_details.setdefault(key, {"details": row, "fifo_queue": []})
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fifo_queue = self.item_details[key]["fifo_queue"]
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transferred_item_key = (row.voucher_no, row.name, row.warehouse)
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self.transferred_item_details.setdefault(transferred_item_key, [])
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return key, fifo_queue, transferred_item_key
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def __compute_incoming_stock(self, row: dict, fifo_queue: list, transfer_key: tuple, serial_nos: list):
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"Update FIFO Queue on inward stock."
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transfer_data = self.transferred_item_details.get(transfer_key)
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if transfer_data:
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# inward/outward from same voucher, item & warehouse
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# eg: Repack with same item, Stock reco for batch item
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# consume transfer data and add stock to fifo queue
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self.__adjust_incoming_transfer_qty(transfer_data, fifo_queue, row)
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else:
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if not serial_nos and not row.get("has_serial_no"):
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if fifo_queue and flt(fifo_queue[0][0]) <= 0:
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# neutralize 0/negative stock by adding positive stock
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fifo_queue[0][0] += flt(row.actual_qty)
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fifo_queue[0][1] = row.posting_date
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fifo_queue[0][2] += flt(row.stock_value_difference)
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else:
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fifo_queue.append(
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[flt(row.actual_qty), row.posting_date, flt(row.stock_value_difference)]
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)
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return
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valuation = row.stock_value_difference / row.actual_qty
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for serial_no in serial_nos:
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if self.serial_no_batch_purchase_details.get(serial_no):
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fifo_queue.append(
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[serial_no, self.serial_no_batch_purchase_details.get(serial_no), valuation]
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)
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else:
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self.serial_no_batch_purchase_details.setdefault(serial_no, row.posting_date)
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fifo_queue.append([serial_no, row.posting_date, valuation])
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def __compute_outgoing_stock(self, row: dict, fifo_queue: list, transfer_key: tuple, serial_nos: list):
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"Update FIFO Queue on outward stock."
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if serial_nos:
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fifo_queue[:] = [serial_no for serial_no in fifo_queue if serial_no[0] not in serial_nos]
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return
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qty_to_pop = abs(row.actual_qty)
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stock_value = abs(row.stock_value_difference)
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while qty_to_pop:
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slot = fifo_queue[0] if fifo_queue else [0, None, 0]
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if 0 < flt(slot[0]) <= qty_to_pop:
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# qty to pop >= slot qty
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# if +ve and not enough or exactly same balance in current slot, consume whole slot
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qty_to_pop -= flt(slot[0])
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stock_value -= flt(slot[2])
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self.transferred_item_details[transfer_key].append(fifo_queue.pop(0))
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elif not fifo_queue:
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# negative stock, no balance but qty yet to consume
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fifo_queue.append([-(qty_to_pop), row.posting_date, -(stock_value)])
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self.transferred_item_details[transfer_key].append(
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[qty_to_pop, row.posting_date, stock_value]
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)
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qty_to_pop = 0
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stock_value = 0
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else:
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# qty to pop < slot qty, ample balance
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# consume actual_qty from first slot
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slot[0] = flt(slot[0]) - qty_to_pop
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slot[2] = flt(slot[2]) - stock_value
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self.transferred_item_details[transfer_key].append([qty_to_pop, slot[1], stock_value])
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qty_to_pop = 0
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stock_value = 0
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def __adjust_incoming_transfer_qty(self, transfer_data: dict, fifo_queue: list, row: dict):
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"Add previously removed stock back to FIFO Queue."
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transfer_qty_to_pop = flt(row.actual_qty)
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stock_value = flt(row.stock_value_difference)
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def add_to_fifo_queue(slot):
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if fifo_queue and flt(fifo_queue[0][0]) <= 0:
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# neutralize 0/negative stock by adding positive stock
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fifo_queue[0][0] += flt(slot[0])
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fifo_queue[0][1] = slot[1]
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fifo_queue[0][2] += flt(slot[2])
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else:
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fifo_queue.append(slot)
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while transfer_qty_to_pop:
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if transfer_data and 0 < transfer_data[0][0] <= transfer_qty_to_pop:
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# bucket qty is not enough, consume whole
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transfer_qty_to_pop -= transfer_data[0][0]
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stock_value -= transfer_data[0][2]
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add_to_fifo_queue(transfer_data.pop(0))
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elif not transfer_data:
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# transfer bucket is empty, extra incoming qty
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add_to_fifo_queue([transfer_qty_to_pop, row.posting_date, stock_value])
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transfer_qty_to_pop = 0
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stock_value = 0
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else:
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# ample bucket qty to consume
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transfer_data[0][0] -= transfer_qty_to_pop
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transfer_data[0][2] -= stock_value
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add_to_fifo_queue([transfer_qty_to_pop, transfer_data[0][1], stock_value])
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transfer_qty_to_pop = 0
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stock_value = 0
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def __update_balances(self, row: dict, key: tuple | str):
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self.item_details[key]["qty_after_transaction"] = row.qty_after_transaction
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if "total_qty" not in self.item_details[key]:
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self.item_details[key]["total_qty"] = row.actual_qty
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else:
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self.item_details[key]["total_qty"] += row.actual_qty
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self.item_details[key]["has_serial_no"] = row.has_serial_no
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self.item_details[key]["details"].valuation_rate = row.valuation_rate
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def __aggregate_details_by_item(self, wh_wise_data: dict) -> dict:
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"Aggregate Item-Wh wise data into single Item entry."
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item_aggregated_data = {}
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for key, row in wh_wise_data.items():
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item = key[0]
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if not item_aggregated_data.get(item):
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item_aggregated_data.setdefault(
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item,
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{
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"details": frappe._dict(),
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"fifo_queue": [],
|
|
"qty_after_transaction": 0.0,
|
|
"total_qty": 0.0,
|
|
},
|
|
)
|
|
item_row = item_aggregated_data.get(item)
|
|
item_row["details"].update(row["details"])
|
|
item_row["fifo_queue"].extend(row["fifo_queue"])
|
|
item_row["qty_after_transaction"] += flt(row["qty_after_transaction"])
|
|
item_row["total_qty"] += flt(row["total_qty"])
|
|
item_row["has_serial_no"] = row["has_serial_no"]
|
|
|
|
return item_aggregated_data
|
|
|
|
def __get_stock_ledger_entries(self) -> Iterator[dict]:
|
|
sle = frappe.qb.DocType("Stock Ledger Entry")
|
|
item = self.__get_item_query() # used as derived table in sle query
|
|
to_date = get_datetime(self.filters.get("to_date") + " 23:59:59")
|
|
|
|
sle_query = (
|
|
frappe.qb.from_(sle)
|
|
.from_(item)
|
|
.select(
|
|
item.name,
|
|
item.item_name,
|
|
item.item_group,
|
|
item.brand,
|
|
item.description,
|
|
item.stock_uom,
|
|
item.has_serial_no,
|
|
item.valuation_method,
|
|
sle.actual_qty,
|
|
sle.stock_value_difference,
|
|
sle.valuation_rate,
|
|
sle.posting_date,
|
|
sle.voucher_type,
|
|
sle.voucher_no,
|
|
sle.voucher_detail_no,
|
|
sle.serial_no,
|
|
sle.batch_no,
|
|
sle.qty_after_transaction,
|
|
sle.serial_and_batch_bundle,
|
|
sle.warehouse,
|
|
)
|
|
.where(
|
|
(sle.item_code == item.name)
|
|
& (sle.company == self.filters.get("company"))
|
|
& (sle.posting_datetime <= to_date)
|
|
& (sle.is_cancelled != 1)
|
|
)
|
|
)
|
|
|
|
if self.filters.get("warehouse"):
|
|
sle_query = self.__get_warehouse_conditions(sle, sle_query)
|
|
elif self.filters.get("warehouse_type"):
|
|
warehouses = frappe.get_all(
|
|
"Warehouse",
|
|
filters={"warehouse_type": self.filters.get("warehouse_type"), "is_group": 0},
|
|
pluck="name",
|
|
)
|
|
|
|
if warehouses:
|
|
sle_query = sle_query.where(sle.warehouse.isin(warehouses))
|
|
|
|
sle_query = sle_query.orderby(sle.posting_datetime, sle.creation)
|
|
|
|
return sle_query.run(as_dict=True, as_iterator=True)
|
|
|
|
def __get_bundle_wise_serial_nos(self) -> dict:
|
|
bundle = frappe.qb.DocType("Serial and Batch Bundle")
|
|
entry = frappe.qb.DocType("Serial and Batch Entry")
|
|
|
|
to_date = get_datetime(self.filters.get("to_date") + " 23:59:59")
|
|
query = (
|
|
frappe.qb.from_(bundle)
|
|
.join(entry)
|
|
.on(bundle.name == entry.parent)
|
|
.select(bundle.name, entry.serial_no)
|
|
.where(
|
|
(bundle.docstatus == 1)
|
|
& (entry.serial_no.isnotnull())
|
|
& (bundle.company == self.filters.get("company"))
|
|
& (bundle.posting_datetime <= to_date)
|
|
)
|
|
)
|
|
|
|
for field in ["item_code"]:
|
|
if self.filters.get(field):
|
|
query = query.where(bundle[field] == self.filters.get(field))
|
|
|
|
if self.filters.get("warehouse"):
|
|
query = self.__get_warehouse_conditions(bundle, query)
|
|
|
|
bundle_wise_serial_nos = frappe._dict({})
|
|
for bundle_name, serial_no in query.run():
|
|
bundle_wise_serial_nos.setdefault(bundle_name, []).append(serial_no)
|
|
|
|
return bundle_wise_serial_nos
|
|
|
|
def __get_item_query(self) -> str:
|
|
item_table = frappe.qb.DocType("Item")
|
|
|
|
item = frappe.qb.from_("Item").select(
|
|
"name",
|
|
"item_name",
|
|
"description",
|
|
"stock_uom",
|
|
"brand",
|
|
"item_group",
|
|
"has_serial_no",
|
|
"valuation_method",
|
|
)
|
|
|
|
if self.filters.get("item_code"):
|
|
item = item.where(item_table.item_code == self.filters.get("item_code"))
|
|
|
|
if self.filters.get("brand"):
|
|
item = item.where(item_table.brand == self.filters.get("brand"))
|
|
|
|
return item
|
|
|
|
def __get_warehouse_conditions(self, sle, sle_query) -> str:
|
|
warehouse = frappe.qb.DocType("Warehouse")
|
|
lft, rgt = frappe.db.get_value("Warehouse", self.filters.get("warehouse"), ["lft", "rgt"])
|
|
|
|
warehouse_results = (
|
|
frappe.qb.from_(warehouse)
|
|
.select("name")
|
|
.where((warehouse.lft >= lft) & (warehouse.rgt <= rgt))
|
|
.run()
|
|
)
|
|
warehouse_results = [x[0] for x in warehouse_results]
|
|
|
|
return sle_query.where(sle.warehouse.isin(warehouse_results))
|
|
|
|
def prepare_stock_reco_voucher_wise_count(self):
|
|
self.stock_reco_voucher_wise_count = frappe._dict()
|
|
|
|
doctype = frappe.qb.DocType("Stock Ledger Entry")
|
|
item = frappe.qb.DocType("Item")
|
|
|
|
query = (
|
|
frappe.qb.from_(doctype)
|
|
.inner_join(item)
|
|
.on(doctype.item_code == item.name)
|
|
.select(doctype.voucher_detail_no, Count(doctype.name).as_("count"))
|
|
.where(
|
|
(doctype.voucher_type == "Stock Reconciliation")
|
|
& (doctype.docstatus < 2)
|
|
& (doctype.is_cancelled == 0)
|
|
)
|
|
.groupby(doctype.voucher_detail_no)
|
|
)
|
|
|
|
data = query.run(as_dict=True)
|
|
if not data:
|
|
return
|
|
|
|
for row in data:
|
|
if row.count != 1:
|
|
continue
|
|
|
|
sr_item = frappe.db.get_value(
|
|
"Stock Reconciliation Item", row.voucher_detail_no, ["current_qty", "qty"], as_dict=True
|
|
)
|
|
if sr_item.qty and sr_item.current_qty:
|
|
self.stock_reco_voucher_wise_count[row.voucher_detail_no] = sr_item.current_qty
|