248 lines
14 KiB
Python
248 lines
14 KiB
Python
# -*- coding: utf-8 -*-
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##############################################################################
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#
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# OpenERP, Open Source Management Solution
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# Copyright (C) 2004-2010 Tiny SPRL (<http://tiny.be>).
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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 Affero General Public License as
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# published by the Free Software Foundation, either version 3 of the
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# License, or (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 Affero General Public License for more details.
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#
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# You should have received a copy of the GNU Affero General Public License
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# along with this program. If not, see <http://www.gnu.org/licenses/>.
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#
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##############################################################################
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import time
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from openerp.osv import fields, osv
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from openerp.tools.translate import _
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import logging
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_logger = logging.getLogger(__name__)
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#----------------------------------------------------------
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# Stock Location
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#----------------------------------------------------------
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class stock_location(osv.osv):
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_inherit = "stock.location"
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_columns = {
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'valuation_in_account_id': fields.many2one('account.account', 'Stock Valuation Account (Incoming)', domain=[('type', '=', 'other')],
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help="Used for real-time inventory valuation. When set on a virtual location (non internal type), "
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"this account will be used to hold the value of products being moved from an internal location "
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"into this location, instead of the generic Stock Output Account set on the product. "
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"This has no effect for internal locations."),
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'valuation_out_account_id': fields.many2one('account.account', 'Stock Valuation Account (Outgoing)', domain=[('type', '=', 'other')],
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help="Used for real-time inventory valuation. When set on a virtual location (non internal type), "
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"this account will be used to hold the value of products being moved out of this location "
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"and into an internal location, instead of the generic Stock Output Account set on the product. "
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"This has no effect for internal locations."),
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}
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#----------------------------------------------------------
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# Quants
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#----------------------------------------------------------
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class stock_quant(osv.osv):
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_inherit = "stock.quant"
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def _get_inventory_value(self, cr, uid, line, prodbrow, context=None):
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#TODO: what in case of partner_id
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if prodbrow[(line.company_id.id, line.product_id.id)].cost_method in ('real'):
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return line.cost * line.qty
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return super(stock_quant, self)._get_inventory_value(cr, uid, line, prodbrow, context=context)
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# FP Note: this is where we should post accounting entries for adjustment
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def _price_update(self, cr, uid, quant, newprice, context=None):
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super(stock_quant, self)._price_update(cr, uid, quant, newprice, context=context)
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# TODO: generate accounting entries
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"""
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Accounting Valuation Entries
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location_from: can be None if it's a new quant
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"""
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def _account_entry_move(self, cr, uid, quant, location_from, location_to, move, context=None):
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if context is None:
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context = {}
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if quant.product_id.valuation != 'real_time':
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return False
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if quant.lot_id and quant.lot_id.partner_id:
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#if the quant isn't owned by the company, we don't make any valuation entry
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return False
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if quant.qty <= 0 or quant.propagated_from_id:
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#we don't make any stock valuation for negative quants because we may not know the real cost price.
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#The valuation will be made at the time of the reconciliation of the negative quant.
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return False
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company_from = self._location_owner(cr, uid, quant, location_from, context=context)
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company_to = self._location_owner(cr, uid, quant, location_to, context=context)
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if company_from == company_to:
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return False
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# Create Journal Entry for products arriving in the company
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if company_to:
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ctx = context.copy()
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ctx['force_company'] = company_to.id
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journal_id, acc_src, acc_dest, acc_valuation = self._get_accounting_data_for_valuation(cr, uid, move, context=ctx)
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if location_from and location_from.usage == 'customer':
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#goods returned from customer
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self._create_account_move_line(cr, uid, quant, move, acc_dest, acc_valuation, journal_id, context=ctx)
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else:
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self._create_account_move_line(cr, uid, quant, move, acc_src, acc_valuation, journal_id, context=ctx)
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# Create Journal Entry for products leaving the company
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if company_from:
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ctx = context.copy()
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ctx['force_company'] = company_from.id
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journal_id, acc_src, acc_dest, acc_valuation = self._get_accounting_data_for_valuation(cr, uid, move, context=ctx)
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if location_to and location_to.usage == 'supplier':
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#goods returned to supplier
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self._create_account_move_line(cr, uid, quant, move, acc_valuation, acc_src, journal_id, context=ctx)
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else:
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self._create_account_move_line(cr, uid, quant, move, acc_valuation, acc_dest, journal_id, context=ctx)
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def move_single_quant(self, cr, uid, quant, qty, move, context=None):
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location_from = quant and quant.location_id or False
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quant = super(stock_quant, self).move_single_quant(cr, uid, quant, qty, move, context=context)
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quant.refresh()
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self._account_entry_move(cr, uid, quant, location_from, quant.location_id, move, context=context)
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return quant
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def _get_accounting_data_for_valuation(self, cr, uid, move, context=None):
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"""
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Return the accounts and journal to use to post Journal Entries for the real-time
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valuation of the quant.
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:param context: context dictionary that can explicitly mention the company to consider via the 'force_company' key
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:returns: journal_id, source account, destination account, valuation account
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:raise: osv.except_osv() is any mandatory account or journal is not defined.
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"""
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product_obj = self.pool.get('product.product')
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accounts = product_obj.get_product_accounts(cr, uid, move.product_id.id, context)
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if move.location_id.valuation_out_account_id:
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acc_src = move.location_id.valuation_out_account_id.id
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else:
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acc_src = accounts['stock_account_input']
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if move.location_dest_id.valuation_in_account_id:
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acc_dest = move.location_dest_id.valuation_in_account_id.id
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else:
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acc_dest = accounts['stock_account_output']
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acc_valuation = accounts.get('property_stock_valuation_account_id', False)
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journal_id = accounts['stock_journal']
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if not all([acc_src, acc_dest, acc_valuation, journal_id]):
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raise osv.except_osv(_('Error!'), _('''One of the following information is missing on the product or product category and prevents the accounting valuation entries to be created:
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Stock Input Account: %s
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Stock Output Account: %s
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Stock Valuation Account: %s
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Stock Journal: %s
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''') % (acc_src, acc_dest, acc_valuation, journal_id))
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return journal_id, acc_src, acc_dest, acc_valuation
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def _prepare_account_move_line(self, cr, uid, quant, move, credit_account_id, debit_account_id, context=None):
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"""
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Generate the account.move.line values to post to track the stock valuation difference due to the
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processing of the given quant.
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"""
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valuation_amount = quant.product_id.cost_method == 'real' and quant.cost or quant.product_id.standard_price
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partner_id = (move.picking_id.partner_id and self.pool.get('res.partner')._find_accounting_partner(move.picking_id.partner_id).id) or False
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debit_line_vals = {
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'name': move.name,
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'product_id': quant.product_id.id,
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'quantity': quant.qty,
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'product_uom_id': quant.product_id.uom_id.id,
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'ref': move.picking_id and move.picking_id.name or False,
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'date': time.strftime('%Y-%m-%d'),
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'partner_id': partner_id,
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'debit': valuation_amount * quant.qty,
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'account_id': debit_account_id,
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}
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credit_line_vals = {
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'name': move.name,
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'product_id': quant.product_id.id,
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'quantity': quant.qty,
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'product_uom_id': quant.product_id.uom_id.id,
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'ref': move.picking_id and move.picking_id.name or False,
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'date': time.strftime('%Y-%m-%d'),
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'partner_id': partner_id,
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'credit': valuation_amount * quant.qty,
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'account_id': credit_account_id,
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}
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res = [(0, 0, debit_line_vals), (0, 0, credit_line_vals)]
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return res
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def _create_account_move_line(self, cr, uid, quant, move, credit_account_id, debit_account_id, journal_id, context=None):
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move_obj = self.pool.get('account.move')
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move_lines = self._prepare_account_move_line(cr, uid, quant, move, credit_account_id, debit_account_id, context=context)
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return move_obj.create(cr, uid, {'journal_id': journal_id,
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'line_id': move_lines,
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'ref': move.picking_id and move.picking_id.name}, context=context)
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def _reconcile_single_negative_quant(self, cr, uid, to_solve_quant, quant, quant_neg, qty, context=None):
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move = self._get_latest_move(cr, uid, to_solve_quant, context=context)
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quant_neg_position = quant_neg.negative_dest_location_id.usage
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remaining_to_solve_quant = super(stock_quant, self)._reconcile_single_negative_quant(cr, uid, to_solve_quant, quant, quant_neg, qty, context=context)
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#update the standard price of the product, only if we would have done it if we'd have had enough stock at first, which means
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#1) there isn't any negative quant anymore
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#2) the product cost's method is 'real'
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#3) we just fixed a negative quant caused by an outgoing shipment
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if not remaining_to_solve_quant and move.product_id.cost_method == 'real' and quant_neg_position != 'internal':
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self.pool.get('stock.move')._store_average_cost_price(cr, uid, move, context=context)
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class stock_move(osv.osv):
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_inherit = "stock.move"
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def action_done(self, cr, uid, ids, context=None):
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self.product_price_update(cr, uid, ids, context=context)
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super(stock_move, self).action_done(cr, uid, ids, context=context)
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def _store_average_cost_price(self, cr, uid, move, context=None):
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''' move is a browe record '''
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product_obj = self.pool.get('product.product')
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if any([q.qty <= 0 for q in move.quant_ids]):
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#if there is a negative quant, the standard price shouldn't be updated
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return
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#Note: here we can't store a quant.cost directly as we may have moved out 2 units (1 unit to 5€ and 1 unit to 7€) and in case of a product return of 1 unit, we can't know which of the 2 costs has to be used (5€ or 7€?). So at that time, thanks to the average valuation price we are storing we will svaluate it at 6€
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average_valuation_price = 0.0
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for q in move.quant_ids:
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average_valuation_price += q.qty * q.cost
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average_valuation_price = average_valuation_price / move.product_qty
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product_obj.write(cr, uid, move.product_id.id, {'standard_price': average_valuation_price}, context=context)
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self.write(cr, uid, move.id, {'price_unit': average_valuation_price}, context=context)
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def product_price_update(self, cr, uid, ids, context=None):
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'''
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This method adapts the price on the product when necessary
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'''
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product_obj = self.pool.get('product.product')
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for move in self.browse(cr, uid, ids, context=context):
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#adapt standard price on incomming moves if the product cost_method is 'average'
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if (move.location_id.usage == 'supplier') and (move.product_id.cost_method == 'average'):
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product = move.product_id
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company_currency_id = move.company_id.currency_id.id
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ctx = {'currency_id': company_currency_id}
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product_avail = product.qty_available
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if product.qty_available <= 0:
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new_std_price = move.price_unit
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else:
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# Get the standard price
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amount_unit = product.price_get('standard_price', context=ctx)[product.id]
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new_std_price = (amount_unit * (product_avail - move.product_qty) + (move.price_unit * move.product_qty)) / product_avail
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# Write the field according to price type field
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product_obj.write(cr, uid, [product.id], {'standard_price': new_std_price}, context=context)
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#adapt standard price on outgoing moves if the product cost_method is 'real', so that a return
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#or an inventory loss is made using the last value used for an outgoing valuation.
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if move.product_id.cost_method == 'real' and move.location_dest_id.usage != 'internal':
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#store the average price of the move on the move and product form
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self._store_average_cost_price(cr, uid, move, context=context)
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