219 lines
13 KiB
Python
219 lines
13 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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from openerp import tools
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from openerp.osv import osv, fields
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class product_product (osv.osv):
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_name = "product.product"
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_inherit = "product.product"
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def _compute_and_set_avg_price(self, cr, uid, prod, company_id, context=None):
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"""
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This method is called when we modify the cost method of a product 'prod' from something to 'average'. At that time, we
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will compute and set the current average price on the product.
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:param prod: browse_record(product.product)
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:param company_id: ID of the company to consider
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"""
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move_obj = self.pool.get("stock.move")
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uom_obj = self.pool.get("product.uom")
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qty = 0.0
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total_price = 0.0
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#search all outgoing stock moves and count the total cost and total quantity
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mov_ids = move_obj.search(cr, uid, [('product_id', '=', prod.id), ('company_id', '=', company_id), ('state', '=', 'done'), ('location_dest_id.usage', '=', 'internal'), ('location_id.usage', '!=', 'internal')], context=context)
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for move in move_obj.browse(cr, uid, mov_ids, context=context):
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total_price += move.product_qty * move.price_unit
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qty += uom_obj._compute_qty(cr, uid, move.product_uom.id, move.product_qty, prod.uom_id.id, round=False)
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if qty > 0.0:
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self.write(cr, uid, [prod.id], {'standard_price': total_price / qty}, context=context)
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def _update_moves_set_avg_price(self, cr, uid, prod, company_id, context=None):
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"""
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This method is called when we modify the cost method of a product 'prod' from average to something else. At that time, we
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will set the current average price on all the stock moves with a positive remaining quantity.
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:param prod: browse_record(product.product)
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:param company_id: ID of the company to consider
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"""
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move_obj = self.pool.get("stock.move")
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uom_obj = self.pool.get("product.uom")
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mov_ids = move_obj.search(cr, uid, [('product_id', '=', prod.id), ('company_id', '=', company_id), ('state', '=', 'done'), ('qty_remaining', '>', 0.0)], context=context)
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for move in move_obj.browse(cr, uid, mov_ids, context=context):
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#convert the average price of the product into the stock move uom
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new_price = uom_obj._compute_price(cr, uid, move.product_uom.id, prod.standard_price, prod.uom_id.id)
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move_obj.write(cr, uid, [move.id], {'price_unit': new_price}, context=context)
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def write(self, cr, uid, ids, vals, context=None):
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if context is None:
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context = {}
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#If we changed the cost method of the product, we may need to do some operation on stock moves or on the product itself
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if "cost_method" in vals:
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company_id = context.get('force_company', self.pool.get("res.users").browse(cr, uid, uid, context=context).company_id.id)
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for prod in self.browse(cr, uid, ids, context=context):
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if prod.cost_method == 'average' and vals['cost_method'] != 'average':
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#If we are changing the cost_method from 'average' to something else, we need to store the current average price
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#on all the done stock move that have a remaining quantity to be matched (mostly incomming stock moves but it may
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#include OUT stock moves as well if the stock went into negative) because their further valuation needs to be done
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#using this price.
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self._update_moves_set_avg_price(cr, uid, prod, company_id, context=context)
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elif vals["cost_method"] == 'average' and prod.cost_method != 'average':
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#If we are changing the cost_method from anything to 'average', we need to compute the current average price
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#and set it on the product as standard_price.
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self._compute_and_set_avg_price(cr, uid, prod, company_id, context=context)
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return super(product_product, self).write(cr, uid, ids, vals, context=context)
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def get_stock_matchings_fifolifo(self, cr, uid, ids, qty, fifo, product_uom_id=False, currency_id=False, context=None):
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# TODO: currency conversions could be omitted
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'''
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This method returns a list of tuples with quantities from stock in moves
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These are the quantities from the in moves that would go out theoretically according to the fifo or lifo method
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(move_in_id, qty in uom of move out, price (converted to move out), qty in uom of move in)
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This should be called for only one product at a time
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UoMs and currencies from the corresponding moves are converted towards that given in the params
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force_company should be used in the context
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'''
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assert len(ids) == 1, 'Only the fifolifo stock matchings of one product can be calculated at a time.'
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if context is None:
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context = {}
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uom_obj = self.pool.get('product.uom')
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move_obj = self.pool.get('stock.move')
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currency_obj = self.pool.get('res.currency')
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product = self.browse(cr, uid, ids, context=context)[0]
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if not product_uom_id:
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product_uom_id = product.uom_id.id
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company_id = context.get('force_company', product.company_id.id)
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if not currency_id:
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currency_id = self.pool.get('res.company').browse(cr, uid, company_id, context=context).currency_id.id
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if fifo:
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order = 'date, id'
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else:
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order = 'date desc, id desc' #id also for yml tests
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move_in_ids = move_obj.search(cr, uid, [('company_id', '=', company_id),
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('qty_remaining', '>', 0.0),
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('state', '=', 'done'),
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('location_id.usage', '!=', 'internal'),
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('location_dest_id.usage', '=', 'internal'),
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('product_id', '=', product.id)],
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order = order, context=context)
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tuples = []
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qty_to_go = qty
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for move in move_obj.browse(cr, uid, move_in_ids, context=context):
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#Convert to UoM of product each time
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uom_from = move.product_uom.id
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qty_from = move.qty_remaining
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product_qty = uom_obj._compute_qty(cr, uid, uom_from, qty_from, product_uom_id, round=False)
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#Convert currency from in move currency id to out move currency
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if move.price_currency_id and (move.price_currency_id.id != currency_id):
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new_price = currency_obj.compute(cr, uid, move.price_currency_id.id, currency_id,
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move.price_unit, round=False)
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else:
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new_price = move.price_unit
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new_price = uom_obj._compute_price(cr, uid, uom_from, new_price, product_uom_id)
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if qty_to_go - product_qty >= 0:
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tuples.append((move.id, product_qty, new_price, qty_from),)
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qty_to_go -= product_qty
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else:
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tuples.append((move.id, qty_to_go, new_price, qty_from * qty_to_go / product_qty),)
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break
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return tuples
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class stock_move(osv.osv):
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_inherit = 'stock.move'
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def _get_moves_from_matchings(self, cr, uid, ids, context=None):
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res = set()
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for match in self.browse(cr, uid, ids, context=context):
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res.add(match.move_out_id.id)
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res.add(match.move_in_id.id)
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return list(res)
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def _get_qty_remaining (self, cr, uid, ids, field_names, arg, context=None):
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'''
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This function calculates how much of the stock move that still needs to be matched
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'''
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match_obj = self.pool.get("stock.move.matching")
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uom_obj = self.pool.get("product.uom")
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res = {}
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for move in self.browse(cr, uid, ids, context=context):
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qty = move.product_qty
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if move.location_id.usage != 'internal' and move.location_dest_id.usage == 'internal':
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# for incomming moves, the remaining quantity is the quantity what hasn't been matched yet with outgoing moves
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matches = match_obj.search(cr, uid, [('move_in_id', '=', move.id)], context=context)
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for match in match_obj.browse(cr, uid, matches, context=context):
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qty -= uom_obj._compute_qty(cr, uid, match.move_out_id.product_uom.id, match.qty, move.product_uom.id, round=False)
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elif move.location_id.usage == 'internal' and move.location_dest_id.usage != 'internal':
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# for outgoing moves, we need to compute the remaining quantity to manage the negative stocks.
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# We do that in the same way that for incomming moves.
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matches = match_obj.search(cr, uid, [('move_out_id', '=', move.id)], context=context)
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for match in match_obj.browse(cr, uid, matches, context=context):
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# we don't need to call uom_obj.compute() as the qty on the matching is already in the uom of the out move
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qty -= match.qty
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else:
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# we don't use remaining quantity on internal moves (no matching are created)
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qty = 0
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res[move.id] = qty
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return res
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_columns = {'qty_remaining': fields.function(_get_qty_remaining, type="float", string="Remaining quantity to be matched",
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store = {'stock.move.matching': (_get_moves_from_matchings, ['qty', 'move_in_id', 'move_out_id'], 10),
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'stock.move': (lambda self, cr, uid, ids, ctx: ids, ['product_qty', 'product_uom', 'location_id', 'location_dest_id'], 10)}),
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'matching_ids_in': fields.one2many('stock.move.matching', 'move_in_id'),
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'matching_ids_out':fields.one2many('stock.move.matching', 'move_out_id'),
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}
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class stock_move_matching(osv.osv):
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_name = "stock.move.matching"
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_description = "Stock move matchings"
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def _get_unit_price_out (self, cr, uid, ids, field_names, arg, context=None):
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res = {}
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uom_obj = self.pool.get("product.uom")
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for match in self.browse(cr, uid, ids, context=context):
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res[match.id] = uom_obj._compute_price(cr, uid, match.move_in_id.product_uom.id, match.price_unit, match.move_out_id.product_uom.id)
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return res
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def _get_matches(self, cr, uid, ids, context=None):
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move_in_ids = []
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#TOCHECK : self == move_obj i think
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move_obj = self.pool.get("stock.move")
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for move in move_obj.browse(cr, uid, ids, context=context):
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if move.location_id.usage != 'internal' and move.location_dest_id.usage == 'internal':
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move_in_ids.append(move.id)
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return self.pool.get("stock.move.matching").search(cr, uid, [('move_in_id', 'in', move_in_ids)], context=context)
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_columns = {
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'move_in_id': fields.many2one('stock.move', 'Stock move in', required=True),
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'move_out_id': fields.many2one('stock.move', 'Stock move out', required=True),
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'qty': fields.float('Quantity in UoM of out', required=True),
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'price_unit':fields.related('move_in_id', 'price_unit', string="Unit price", type="float"),
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'price_unit_out': fields.function(_get_unit_price_out, type="float", string="Price in UoM of out move",
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store = {'stock.move': (_get_matches, ['price_unit', 'product_uom'], 10),
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'stock.move.matching': (lambda self, cr, uid, ids, ctx: ids, ['move_in_id', 'qty', 'move_out_id'], 10)},),
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}
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# vim:expandtab:smartindent:tabstop=4:softtabstop=4:shiftwidth=4:
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