#This file is part of Tryton. The COPYRIGHT file at the top level of #this repository contains the full copyright notices and license terms. from decimal import Decimal from functools import reduce from trytond.model import ModelView, ModelSQL, fields from trytond.backend import TableHandler from trytond.pyson import In, Eval, Not, Equal, If, Get, Bool from trytond.transaction import Transaction from trytond.pool import Pool __all__ = ['Move'] STATES = { 'readonly': In(Eval('state'), ['cancel', 'assigned', 'done']), } DEPENDS = ['state'] class Move(ModelSQL, ModelView): "Stock Move" __name__ = 'stock.move' _order_name = 'product' product = fields.Many2One("product.product", "Product", required=True, select=True, states=STATES, on_change=['product', 'currency', 'uom', 'company', 'from_location', 'to_location'], domain=[('type', '!=', 'service')], depends=DEPENDS) product_uom_category = fields.Function( fields.Many2One('product.uom.category', 'Product Uom Category', on_change_with=['product']), 'on_change_with_product_uom_category') uom = fields.Many2One("product.uom", "Uom", required=True, states=STATES, domain=[ ('category', '=', Eval('product_uom_category')), ], on_change=['product', 'currency', 'uom', 'company', 'from_location', 'to_location'], depends=['state', 'product_uom_category']) unit_digits = fields.Function(fields.Integer('Unit Digits', on_change_with=['uom']), 'on_change_with_unit_digits') quantity = fields.Float("Quantity", required=True, digits=(16, Eval('unit_digits', 2)), states=STATES, depends=['state', 'unit_digits']) internal_quantity = fields.Float('Internal Quantity', readonly=True, required=True) from_location = fields.Many2One("stock.location", "From Location", select=True, required=True, states=STATES, depends=DEPENDS, domain=[('type', 'not in', ('warehouse', 'view'))]) to_location = fields.Many2One("stock.location", "To Location", select=True, required=True, states=STATES, depends=DEPENDS, domain=[('type', 'not in', ('warehouse', 'view'))]) shipment_in = fields.Many2One('stock.shipment.in', 'Supplier Shipment', domain=[('company', '=', Eval('company'))], depends=['company'], readonly=True, select=True, ondelete='CASCADE') shipment_out = fields.Many2One('stock.shipment.out', 'Customer Shipment', domain=[('company', '=', Eval('company'))], depends=['company'], readonly=True, select=True, ondelete='CASCADE') shipment_out_return = fields.Many2One('stock.shipment.out.return', 'Customer Return Shipment', readonly=True, select=True, domain=[('company', '=', Eval('company'))], depends=['company'], ondelete='CASCADE') shipment_in_return = fields.Many2One('stock.shipment.in.return', 'Supplier Return Shipment', readonly=True, select=True, domain=[('company', '=', Eval('company'))], depends=['company'], ondelete='CASCADE') shipment_internal = fields.Many2One('stock.shipment.internal', 'Internal Shipment', readonly=True, select=True, ondelete='CASCADE', domain=[('company', '=', Eval('company'))], depends=['company']) planned_date = fields.Date("Planned Date", states={ 'readonly': (In(Eval('state'), ['cancel', 'assigned', 'done']) | Eval('shipment_in') | Eval('shipment_out') | Eval('shipment_in_return') | Eval('shipment_out_return') | Eval('shipment_internal')) }, depends=['state', 'shipment_in', 'shipment_out', 'shipment_in_return', 'shipment_out_return', 'shipment_internal'], select=True) effective_date = fields.Date("Effective Date", readonly=True, select=True) state = fields.Selection([ ('draft', 'Draft'), ('assigned', 'Assigned'), ('done', 'Done'), ('cancel', 'Canceled'), ], 'State', select=True, readonly=True) company = fields.Many2One('company.company', 'Company', required=True, states={ 'readonly': Not(Equal(Eval('state'), 'draft')), }, domain=[ ('id', If(In('company', Eval('context', {})), '=', '!='), Get(Eval('context', {}), 'company', 0)), ], depends=['state']) unit_price = fields.Numeric('Unit Price', digits=(16, 4), states={ 'invisible': Not(Bool(Eval('unit_price_required'))), 'required': Bool(Eval('unit_price_required')), 'readonly': Not(Equal(Eval('state'), 'draft')), }, depends=['unit_price_required', 'state']) cost_price = fields.Numeric('Cost Price', digits=(16, 4), readonly=True) currency = fields.Many2One('currency.currency', 'Currency', states={ 'invisible': Not(Bool(Eval('unit_price_required'))), 'required': Bool(Eval('unit_price_required')), 'readonly': Not(Equal(Eval('state'), 'draft')), }, depends=['unit_price_required', 'state']) unit_price_required = fields.Function(fields.Boolean('Unit Price Required', on_change_with=['from_location', 'to_location']), 'on_change_with_unit_price_required') @classmethod def __setup__(cls): super(Move, cls).__setup__() cls._sql_constraints += [ ('check_move_qty_pos', 'CHECK(quantity >= 0.0)', 'Move quantity must be positive'), ('check_move_internal_qty_pos', 'CHECK(internal_quantity >= 0.0)', 'Internal move quantity must be positive'), ('check_from_to_locations', 'CHECK(from_location != to_location)', 'Source and destination location must be different'), ('check_shipment', 'CHECK((COALESCE(shipment_in, 0) / COALESCE(shipment_in, 1) ' \ '+ COALESCE(shipment_out, 0) / ' \ 'COALESCE(shipment_out, 1) ' \ '+ COALESCE(shipment_internal, 0) / ' \ 'COALESCE(shipment_internal, 1) ' \ '+ COALESCE(shipment_in_return, 0) / ' \ 'COALESCE(shipment_in_return, 1) ' \ '+ COALESCE(shipment_out_return, 0) / ' \ 'COALESCE(shipment_out_return, 1)) ' \ '<= 1)', 'Move can be on only one Shipment'), ] cls._constraints += [ ('check_period_closed', 'period_closed'), ] cls._order[0] = ('id', 'DESC') cls._error_messages.update({ 'set_state_draft': 'You can not set state to draft!', 'set_state_assigned': 'You can not set state to assigned!', 'set_state_done': 'You can not set state to done!', 'del_draft_cancel': 'You can only delete draft ' \ 'or cancelled moves!', 'period_closed': 'You can not modify move in closed period!', 'modify_assigned_done_cancel': ('You can not modify a move ' 'in the state: "Assigned", "Done" or "Cancel"'), }) @classmethod def __register__(cls, module_name): cursor = Transaction().cursor # Migration from 1.2: packing renamed into shipment table = TableHandler(cursor, cls, module_name) table.drop_constraint('check_packing') for suffix in ('in', 'out', 'in_return', 'out_return', 'internal'): old_column = 'packing_%s' % suffix new_column = 'shipment_%s' % suffix if table.column_exist(old_column): table.index_action(old_column, action='remove') table.drop_fk(old_column) table.column_rename(old_column, new_column) # Migration from 1.8: new field internal_quantity internal_quantity_exist = table.column_exist('internal_quantity') super(Move, cls).__register__(module_name) # Migration from 1.8: fill new field internal_quantity if not internal_quantity_exist: offset = 0 limit = cursor.IN_MAX moves = True while moves: moves = cls.search([], offset=offset, limit=limit) offset += limit for move in moves: internal_quantity = cls._get_internal_quantity( move.quantity, move.uom, move.product) cls.write([move], { 'internal_quantity': internal_quantity, }) table = TableHandler(cursor, cls, module_name) table.not_null_action('internal_quantity', action='add') # Migration from 1.0 check_packing_in_out has been removed table = TableHandler(cursor, cls, module_name) table.drop_constraint('check_packing_in_out') # Add index on create_date table.index_action('create_date', action='add') @staticmethod def default_planned_date(): return Transaction().context.get('planned_date') @staticmethod def default_state(): return 'draft' @staticmethod def default_company(): return Transaction().context.get('company') @staticmethod def default_currency(): Company = Pool().get('company.company') company = Transaction().context.get('company') if company: company = Company(company) return company.currency.id @staticmethod def default_unit_digits(): return 2 def on_change_with_unit_digits(self, name=None): if self.uom: return self.uom.digits return 2 def on_change_product(self): pool = Pool() Uom = pool.get('product.uom') Currency = pool.get('currency.currency') res = { 'unit_price': Decimal('0.0'), } if self.product: res['uom'] = self.product.default_uom.id res['uom.rec_name'] = self.product.default_uom.rec_name res['unit_digits'] = self.product.default_uom.digits unit_price = None if self.from_location and self.from_location.type in ('supplier', 'production'): unit_price = self.product.cost_price elif self.to_location and self.to_location.type == 'customer': unit_price = self.product.list_price if unit_price: if self.uom != self.product.default_uom: unit_price = Uom.compute_price(self.product.default_uom, unit_price, self.uom) if self.currency and self.company: unit_price = Currency.compute(self.company.currency, unit_price, self.currency, round=False) res['unit_price'] = unit_price return res def on_change_with_product_uom_category(self, name=None): if self.product: return self.product.default_uom_category.id def on_change_uom(self): pool = Pool() Uom = pool.get('product.uom') Currency = pool.get('currency.currency') res = { 'unit_price': Decimal('0.0'), } if self.product: if self.to_location and self.to_location.type == 'storage': unit_price = self.product.cost_price if self.uom and self.uom != self.product.default_uom: unit_price = Uom.compute_price(self.product.default_uom, unit_price, self.uom) if self.currency and self.company: unit_price = Currency.compute(self.company.currency, unit_price, self.currency, round=False) res['unit_price'] = unit_price return res def on_change_with_unit_price_required(self, name=None): if (self.from_location and self.from_location.type in ('supplier', 'production')): return True if (self.to_location and self.to_location.type == 'customer'): return True return False @classmethod def check_period_closed(cls, moves): Period = Pool().get('stock.period') periods = Period.search([ ('state', '=', 'closed'), ], order=[('date', 'DESC')], limit=1) if periods: period, = periods for move in moves: date = (move.effective_date if move.effective_date else move.planned_date) if date and date < period.date: return False return True def get_rec_name(self, name): return ("%s%s %s" % (self.quantity, self.uom.symbol, self.product.rec_name)) @classmethod def search_rec_name(cls, name, clause): return [('product',) + clause[1:]] @classmethod def _update_product_cost_price(cls, product_id, quantity, uom, unit_price, currency, company, date): """ Update the cost price on the given product. The quantity must be positive if incoming and negative if outgoing. The date is for the currency rate calculation. """ pool = Pool() Uom = pool.get('product.uom') Product = pool.get('product.product') ProductTemplate = pool.get('product.template') Location = pool.get('stock.location') Currency = pool.get('currency.currency') Company = pool.get('company.company') Date = pool.get('ir.date') if isinstance(uom, (int, long)): uom = Uom(uom) if isinstance(currency, (int, long)): currency = Currency(currency) if isinstance(company, (int, long)): company = Company(company) context = {} context['locations'] = Location.search([ ('type', '=', 'storage'), ]) context['stock_date_end'] = Date.today() with Transaction().set_context(context): product = Product(product_id) qty = Uom.compute_qty(uom, quantity, product.default_uom) qty = Decimal(str(qty)) if hasattr(Product, 'cost_price'): product_qty = product.quantity else: product_qty = product.template.quantity product_qty = Decimal(str(product_qty)) # convert wrt currency with Transaction().set_context(date=date): unit_price = Currency.compute(currency, unit_price, company.currency, round=False) # convert wrt to the uom unit_price = Uom.compute_price(uom, unit_price, product.default_uom) if product_qty + qty != Decimal('0.0'): new_cost_price = ( (product.cost_price * product_qty) + (unit_price * qty) ) / (product_qty + qty) else: new_cost_price = product.cost_price if hasattr(Product, 'cost_price'): digits = Product.cost_price.digits else: digits = ProductTemplate.cost_price.digits new_cost_price = new_cost_price.quantize( Decimal(str(10.0 ** -digits[1]))) with Transaction().set_user(0, set_context=True): Product.write([product], { 'cost_price': new_cost_price, }) @staticmethod def _get_internal_quantity(quantity, uom, product): Uom = Pool().get('product.uom') internal_quantity = Uom.compute_qty(uom, quantity, product.default_uom, round=True) return internal_quantity @classmethod def create(cls, vals): pool = Pool() Location = pool.get('stock.location') Product = pool.get('product.product') Uom = pool.get('product.uom') Date = pool.get('ir.date') today = Date.today() vals = vals.copy() effective_date = vals.get('effective_date') or today product = Product(vals['product']) if vals.get('state') == 'done': vals['effective_date'] = effective_date currency_id = vals.get('currency', cls.default_currency()) company_id = vals.get('company', cls.default_company()) from_location = Location(vals['from_location']) to_location = Location(vals['to_location']) if (from_location.type in ('supplier', 'production') and to_location.type == 'storage' and product.cost_price_method == 'average'): cls._update_product_cost_price(vals['product'], vals['quantity'], vals['uom'], vals['unit_price'], currency_id, company_id, effective_date) if (to_location.type == 'supplier' and from_location.type == 'storage' and product.cost_price_method == 'average'): cls._update_product_cost_price(vals['product'], -vals['quantity'], vals['uom'], vals['unit_price'], currency_id, company_id, effective_date) if not vals.get('cost_price'): # Re-read product to get the updated cost_price product = Product(vals['product']) vals['cost_price'] = product.cost_price elif vals.get('state') == 'assigned': vals['effective_date'] = effective_date uom = Uom(vals['uom']) internal_quantity = cls._get_internal_quantity(vals['quantity'], uom, product) vals['internal_quantity'] = internal_quantity return super(Move, cls).create(vals) @classmethod def write(cls, moves, vals): Date = Pool().get('ir.date') today = Date.today() effective_date = vals.get('effective_date') or today if 'state' in vals: for move in moves: if vals['state'] == 'cancel': vals['effective_date'] = None if (move.from_location.type in ('supplier', 'production') and move.to_location.type == 'storage' and move.state != 'cancel' and move.product.cost_price_method == 'average'): cls._update_product_cost_price(move.product.id, -move.quantity, move.uom, move.unit_price, move.currency, move.company, today) if (move.to_location.type == 'supplier' and move.from_location.type == 'storage' and move.state != 'cancel' and move.product.cost_price_method == 'average'): cls._update_product_cost_price(move.product.id, move.quantity, move.uom, move.unit_price, move.currency, move.company, today) elif vals['state'] == 'draft': if move.state == 'done': cls.raise_user_error('set_state_draft') elif vals['state'] == 'assigned': if move.state in ('cancel', 'done'): cls.raise_user_error('set_state_assigned') vals['effective_date'] = effective_date elif vals['state'] == 'done': if move.state in ('cancel'): cls.raise_user_error('set_state_done') vals['effective_date'] = effective_date if (move.from_location.type in ('supplier', 'production') and move.to_location.type == 'storage' and move.state != 'done' and move.product.cost_price_method == 'average'): cls._update_product_cost_price(move.product.id, move.quantity, move.uom, move.unit_price, move.currency, move.company, effective_date) if (move.to_location.type == 'supplier' and move.from_location.type == 'storage' and move.state != 'done' and move.product.cost_price_method == 'average'): cls._update_product_cost_price(move.product.id, -move.quantity, move.uom, move.unit_price, move.currency, move.company, effective_date) if reduce(lambda x, y: x or y in vals, ('product', 'uom', 'quantity', 'from_location', 'to_location', 'company', 'unit_price', 'currency'), False): for move in moves: if move.state in ('assigned', 'done', 'cancel'): cls.raise_user_error('modify_assigned_done_cancel') if reduce(lambda x, y: x or y in vals, ('planned_date', 'effective_date'), False): for move in moves: if move.state in ('done', 'cancel'): cls.raise_user_error('modify_assigned_done_cancel') super(Move, cls).write(moves, vals) if vals.get('state', '') == 'done': for move in moves: if not move.cost_price: cls.write([move], { 'cost_price': move.product.cost_price, }) for move in moves: internal_quantity = cls._get_internal_quantity(move.quantity, move.uom, move.product) if internal_quantity != move.internal_quantity: # Use super to avoid infinite loop super(Move, cls).write([move], { 'internal_quantity': internal_quantity, }) @classmethod def delete(cls, moves): for move in moves: if move.state not in ('draft', 'cancel'): cls.raise_user_error('del_draft_cancel') super(Move, cls).delete(moves) def pick_product(self, location_quantities): """ Pick the product across the location. Naive (fast) implementation. Return a list of tuple (location, quantity) for quantities that can be picked. """ to_pick = [] needed_qty = self.quantity for location, available_qty in location_quantities.iteritems(): # Ignore available_qty when too small if available_qty < self.uom.rounding: continue if needed_qty <= available_qty: to_pick.append((location, needed_qty)) return to_pick else: to_pick.append((location, available_qty)) needed_qty -= available_qty # Force assignation for consumables: if self.product.consumable: to_pick.append((self.from_location, needed_qty)) return to_pick return to_pick @classmethod def assign_try(cls, moves): ''' Try to assign moves. It will split the moves to assign as much possible. Return True if succeed or False if not. ''' pool = Pool() Product = pool.get('product.product') Uom = pool.get('product.uom') Date = pool.get('ir.date') Location = pool.get('stock.location') Transaction().cursor.lock(cls._table) locations = Location.search([ ('parent', 'child_of', [x.from_location.id for x in moves]), ]) with Transaction().set_context( stock_date_end=Date.today(), stock_assign=True): pbl = Product.products_by_location( location_ids=[l.id for l in locations], product_ids=[m.product.id for m in moves]) success = True for move in moves: if move.state != 'draft': continue to_location = move.to_location location_qties = {} childs = Location.search([ ('parent', 'child_of', [move.from_location.id]), ]) for location in childs: if (location.id, move.product.id) in pbl: location_qties[location] = Uom.compute_qty( move.product.default_uom, pbl[(location.id, move.product.id)], move.uom, round=False) to_pick = move.pick_product(location_qties) picked_qties = 0.0 for _, qty in to_pick: picked_qties += qty if picked_qties < move.quantity: success = False first = False cls.write([move], { 'quantity': move.quantity - picked_qties, }) else: first = True for from_location, qty in to_pick: values = { 'from_location': from_location.id, 'quantity': qty, 'state': 'assigned', } if first: cls.write([move], values) first = False else: cls.copy([move], default=values) qty_default_uom = Uom.compute_qty(move.uom, qty, move.product.default_uom, round=False) pbl[(from_location.id, move.product.id)] = ( pbl.get((from_location.id, move.product.id), 0.0) - qty_default_uom) pbl[(to_location.id, move.product.id)] = ( pbl.get((to_location.id, move.product.id), 0.0) + qty_default_uom) return success