# Copyright (c) 2015, Frappe Technologies Pvt. Ltd. and Contributors # License: GNU General Public License v3. See license.txt from __future__ import unicode_literals import frappe from frappe import _, msgprint from frappe.utils import flt,cint, cstr from erpnext.accounts.party import get_party_details from erpnext.stock.get_item_details import get_conversion_factor from erpnext.buying.utils import validate_for_items from erpnext.stock.stock_ledger import get_valuation_rate from erpnext.controllers.stock_controller import StockController class BuyingController(StockController): def __setup__(self): if hasattr(self, "taxes"): self.print_templates = { "taxes": "templates/print_formats/includes/taxes.html" } def get_feed(self): if self.get("supplier_name"): return _("From {0} | {1} {2}").format(self.supplier_name, self.currency, self.grand_total) def validate(self): super(BuyingController, self).validate() if getattr(self, "supplier", None) and not self.supplier_name: self.supplier_name = frappe.db.get_value("Supplier", self.supplier, "supplier_name") self.set_qty_as_per_stock_uom() self.validate_stock_or_nonstock_items() self.validate_warehouse() if self.doctype=="Purchase Invoice": self.validate_purchase_receipt_if_update_stock() if self.doctype=="Purchase Receipt" or (self.doctype=="Purchase Invoice" and self.update_stock): # self.validate_purchase_return() self.validate_rejected_warehouse() self.validate_accepted_rejected_qty() validate_for_items(self) #sub-contracting self.validate_for_subcontracting() self.create_raw_materials_supplied("supplied_items") self.set_landed_cost_voucher_amount() if self.doctype in ("Purchase Receipt", "Purchase Invoice"): self.update_valuation_rate("items") def set_missing_values(self, for_validate=False): super(BuyingController, self).set_missing_values(for_validate) self.set_supplier_from_item_default() self.set_price_list_currency("Buying") # set contact and address details for supplier, if they are not mentioned if getattr(self, "supplier", None): self.update_if_missing(get_party_details(self.supplier, party_type="Supplier", ignore_permissions=self.flags.ignore_permissions)) self.set_missing_item_details(for_validate) def set_supplier_from_item_default(self): if self.meta.get_field("supplier") and not self.supplier: for d in self.get("items"): supplier = frappe.db.get_value("Item", d.item_code, "default_supplier") if supplier: self.supplier = supplier break def validate_stock_or_nonstock_items(self): if self.meta.get_field("taxes") and not self.get_stock_items(): tax_for_valuation = [d for d in self.get("taxes") if d.category in ["Valuation", "Valuation and Total"]] if tax_for_valuation: for d in tax_for_valuation: d.category = 'Total' msgprint(_('Tax Category has been changed to "Total" because all the Items are non-stock items')) def set_landed_cost_voucher_amount(self): for d in self.get("items"): lc_voucher_amount = frappe.db.sql("""select sum(applicable_charges) from `tabLanded Cost Item` where docstatus = 1 and purchase_receipt_item = %s""", d.name) d.landed_cost_voucher_amount = lc_voucher_amount[0][0] if lc_voucher_amount else 0.0 def set_total_in_words(self): from frappe.utils import money_in_words if self.meta.get_field("base_in_words"): self.base_in_words = money_in_words(self.base_grand_total, self.company_currency) if self.meta.get_field("in_words"): self.in_words = money_in_words(self.grand_total, self.currency) # update valuation rate def update_valuation_rate(self, parentfield): """ item_tax_amount is the total tax amount applied on that item stored for valuation TODO: rename item_tax_amount to valuation_tax_amount """ stock_items = self.get_stock_items() stock_items_qty, stock_items_amount = 0, 0 last_stock_item_idx = 1 for d in self.get(parentfield): if d.item_code and d.item_code in stock_items: stock_items_qty += flt(d.qty) stock_items_amount += flt(d.base_net_amount) last_stock_item_idx = d.idx total_valuation_amount = sum([flt(d.base_tax_amount_after_discount_amount) for d in self.get("taxes") if d.category in ["Valuation", "Valuation and Total"]]) valuation_amount_adjustment = total_valuation_amount for i, item in enumerate(self.get(parentfield)): if item.item_code and item.qty and item.item_code in stock_items: item_proportion = flt(item.base_net_amount) / stock_items_amount if stock_items_amount \ else flt(item.qty) / stock_items_qty if i == (last_stock_item_idx - 1): item.item_tax_amount = flt(valuation_amount_adjustment, self.precision("item_tax_amount", item)) else: item.item_tax_amount = flt(item_proportion * total_valuation_amount, self.precision("item_tax_amount", item)) valuation_amount_adjustment -= item.item_tax_amount self.round_floats_in(item) if flt(item.conversion_factor)==0.0: item.conversion_factor = get_conversion_factor(item.item_code, item.uom).get("conversion_factor") or 1.0 qty_in_stock_uom = flt(item.qty * item.conversion_factor) rm_supp_cost = flt(item.rm_supp_cost) if self.doctype in ["Purchase Receipt", "Purchase Invoice"] else 0.0 landed_cost_voucher_amount = flt(item.landed_cost_voucher_amount) \ if self.doctype in ["Purchase Receipt", "Purchase Invoice"] else 0.0 item.valuation_rate = ((item.base_net_amount + item.item_tax_amount + rm_supp_cost + landed_cost_voucher_amount) / qty_in_stock_uom) else: item.valuation_rate = 0.0 def validate_for_subcontracting(self): if not self.is_subcontracted and self.sub_contracted_items: frappe.throw(_("Please enter 'Is Subcontracted' as Yes or No")) if self.is_subcontracted == "Yes": if self.doctype in ["Purchase Receipt", "Purchase Invoice"] and not self.supplier_warehouse: frappe.throw(_("Supplier Warehouse mandatory for sub-contracted Purchase Receipt")) for item in self.get("items"): if item in self.sub_contracted_items and not item.bom: frappe.throw(_("Please select BOM in BOM field for Item {0}").format(item.item_code)) else: for item in self.get("items"): if item.bom: item.bom = None def create_raw_materials_supplied(self, raw_material_table): if self.is_subcontracted=="Yes": parent_items = [] for item in self.get("items"): if self.doctype in ["Purchase Receipt", "Purchase Invoice"]: item.rm_supp_cost = 0.0 if item.item_code in self.sub_contracted_items: self.update_raw_materials_supplied(item, raw_material_table) if [item.item_code, item.name] not in parent_items: parent_items.append([item.item_code, item.name]) self.cleanup_raw_materials_supplied(parent_items, raw_material_table) elif self.doctype in ["Purchase Receipt", "Purchase Invoice"]: for item in self.get("items"): item.rm_supp_cost = 0.0 if self.is_subcontracted == "No" and self.get("supplied_items"): self.set('supplied_items', []) def update_raw_materials_supplied(self, item, raw_material_table): bom_items = self.get_items_from_bom(item.item_code, item.bom) raw_materials_cost = 0 for bom_item in bom_items: # check if exists exists = 0 for d in self.get(raw_material_table): if d.main_item_code == item.item_code and d.rm_item_code == bom_item.item_code \ and d.reference_name == item.name: rm, exists = d, 1 break if not exists: rm = self.append(raw_material_table, {}) required_qty = flt(bom_item.qty_consumed_per_unit) * flt(item.qty) * flt(item.conversion_factor) rm.reference_name = item.name rm.bom_detail_no = bom_item.name rm.main_item_code = item.item_code rm.rm_item_code = bom_item.item_code rm.stock_uom = bom_item.stock_uom rm.required_qty = required_qty rm.conversion_factor = item.conversion_factor if self.doctype in ["Purchase Receipt", "Purchase Invoice"]: rm.consumed_qty = required_qty rm.description = bom_item.description if item.batch_no and not rm.batch_no: rm.batch_no = item.batch_no # get raw materials rate if self.doctype == "Purchase Receipt": from erpnext.stock.utils import get_incoming_rate rm.rate = get_incoming_rate({ "item_code": bom_item.item_code, "warehouse": self.supplier_warehouse, "posting_date": self.posting_date, "posting_time": self.posting_time, "qty": -1 * required_qty, "serial_no": rm.serial_no }) if not rm.rate: rm.rate = get_valuation_rate(bom_item.item_code, self.supplier_warehouse, self.doctype, self.name, currency=self.company_currency, company = self.company) else: rm.rate = bom_item.rate rm.amount = required_qty * flt(rm.rate) raw_materials_cost += flt(rm.amount) if self.doctype in ("Purchase Receipt", "Purchase Invoice"): item.rm_supp_cost = raw_materials_cost def cleanup_raw_materials_supplied(self, parent_items, raw_material_table): """Remove all those child items which are no longer present in main item table""" delete_list = [] for d in self.get(raw_material_table): if [d.main_item_code, d.reference_name] not in parent_items: # mark for deletion from doclist delete_list.append(d) # delete from doclist if delete_list: rm_supplied_details = self.get(raw_material_table) self.set(raw_material_table, []) for d in rm_supplied_details: if d not in delete_list: self.append(raw_material_table, d) def get_items_from_bom(self, item_code, bom): bom_items = frappe.db.sql("""select t2.item_code, t2.stock_qty / ifnull(t1.quantity, 1) as qty_consumed_per_unit, t2.rate, t2.stock_uom, t2.name, t2.description from `tabBOM` t1, `tabBOM Item` t2, tabItem t3 where t2.parent = t1.name and t1.item = %s and t1.docstatus = 1 and t1.is_active = 1 and t1.name = %s and t2.item_code = t3.name and t3.is_stock_item = 1""", (item_code, bom), as_dict=1) if not bom_items: msgprint(_("Specified BOM {0} does not exist for Item {1}").format(bom, item_code), raise_exception=1) return bom_items @property def sub_contracted_items(self): if not hasattr(self, "_sub_contracted_items"): self._sub_contracted_items = [] item_codes = list(set(item.item_code for item in self.get("items"))) if item_codes: self._sub_contracted_items = [r[0] for r in frappe.db.sql("""select name from `tabItem` where name in (%s) and is_sub_contracted_item=1""" % \ (", ".join((["%s"]*len(item_codes))),), item_codes)] return self._sub_contracted_items def set_qty_as_per_stock_uom(self): for d in self.get("items"): if d.meta.get_field("stock_qty"): if not d.conversion_factor: frappe.throw(_("Row {0}: Conversion Factor is mandatory").format(d.idx)) d.stock_qty = flt(d.qty) * flt(d.conversion_factor) def validate_purchase_return(self): for d in self.get("items"): if self.is_return and flt(d.rejected_qty) != 0: frappe.throw(_("Row #{0}: Rejected Qty can not be entered in Purchase Return").format(d.idx)) # validate rate with ref PR def validate_rejected_warehouse(self): for d in self.get("items"): if flt(d.rejected_qty) and not d.rejected_warehouse: if self.rejected_warehouse: d.rejected_warehouse = self.rejected_warehouse if not d.rejected_warehouse: frappe.throw(_("Row #{0}: Rejected Warehouse is mandatory against rejected Item {1}").format(d.idx, d.item_code)) # validate accepted and rejected qty def validate_accepted_rejected_qty(self): for d in self.get("items"): self.validate_negative_quantity(d, ["received_qty","qty", "rejected_qty"]) if not flt(d.received_qty) and flt(d.qty): d.received_qty = flt(d.qty) - flt(d.rejected_qty) elif not flt(d.qty) and flt(d.rejected_qty): d.qty = flt(d.received_qty) - flt(d.rejected_qty) elif not flt(d.rejected_qty): d.rejected_qty = flt(d.received_qty) - flt(d.qty) # Check Received Qty = Accepted Qty + Rejected Qty if ((flt(d.qty) + flt(d.rejected_qty)) != flt(d.received_qty)): frappe.throw(_("Accepted + Rejected Qty must be equal to Received quantity for Item {0}").format(d.item_code)) def validate_negative_quantity(self, item_row, field_list): if self.is_return: return item_row = item_row.as_dict() for fieldname in field_list: if flt(item_row[fieldname]) < 0: frappe.throw(_("Row #{0}: {1} can not be negative for item {2}".format(item_row['idx'], frappe.get_meta(item_row.doctype).get_label(fieldname), item_row['item_code']))) def update_stock_ledger(self, allow_negative_stock=False, via_landed_cost_voucher=False): self.update_ordered_qty() sl_entries = [] stock_items = self.get_stock_items() for d in self.get('items'): if d.item_code in stock_items and d.warehouse: pr_qty = flt(d.qty) * flt(d.conversion_factor) if pr_qty: sle = self.get_sl_entries(d, { "actual_qty": flt(pr_qty), "serial_no": cstr(d.serial_no).strip() }) if self.is_return: original_incoming_rate = frappe.db.get_value("Stock Ledger Entry", {"voucher_type": "Purchase Receipt", "voucher_no": self.return_against, "item_code": d.item_code}, "incoming_rate") sle.update({ "outgoing_rate": original_incoming_rate }) else: val_rate_db_precision = 6 if cint(self.precision("valuation_rate", d)) <= 6 else 9 incoming_rate = flt(d.valuation_rate, val_rate_db_precision) sle.update({ "incoming_rate": incoming_rate }) sl_entries.append(sle) if flt(d.rejected_qty) != 0: sl_entries.append(self.get_sl_entries(d, { "warehouse": d.rejected_warehouse, "actual_qty": flt(d.rejected_qty) * flt(d.conversion_factor), "serial_no": cstr(d.rejected_serial_no).strip(), "incoming_rate": 0.0 })) self.make_sl_entries_for_supplier_warehouse(sl_entries) self.make_sl_entries(sl_entries, allow_negative_stock=allow_negative_stock, via_landed_cost_voucher=via_landed_cost_voucher) def update_ordered_qty(self): po_map = {} for d in self.get("items"): if self.doctype=="Purchase Receipt" \ and d.purchase_order: po_map.setdefault(d.purchase_order, []).append(d.purchase_order_item) elif self.doctype=="Purchase Invoice" and d.purchase_order and d.po_detail: po_map.setdefault(d.purchase_order, []).append(d.po_detail) for po, po_item_rows in po_map.items(): if po and po_item_rows: po_obj = frappe.get_doc("Purchase Order", po) if po_obj.status in ["Closed", "Cancelled"]: frappe.throw(_("{0} {1} is cancelled or closed").format(_("Purchase Order"), po), frappe.InvalidStatusError) po_obj.update_ordered_qty(po_item_rows) def make_sl_entries_for_supplier_warehouse(self, sl_entries): if hasattr(self, 'supplied_items'): for d in self.get('supplied_items'): # negative quantity is passed, as raw material qty has to be decreased # when PR is submitted and it has to be increased when PR is cancelled sl_entries.append(self.get_sl_entries(d, { "item_code": d.rm_item_code, "warehouse": self.supplier_warehouse, "actual_qty": -1*flt(d.consumed_qty), }))