odoo/addons/stock/product.py

# -*- coding: utf-8 -*-
##############################################################################
#
#    OpenERP, Open Source Management Solution
#    Copyright (C) 2004-2010 Tiny SPRL (<http://tiny.be>).
#
#    This program is free software: you can redistribute it and/or modify
#    it under the terms of the GNU Affero General Public License as
#    published by the Free Software Foundation, either version 3 of the
#    License, or (at your option) any later version.
#
#    This program is distributed in the hope that it will be useful,
#    but WITHOUT ANY WARRANTY; without even the implied warranty of
#    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
#    GNU Affero General Public License for more details.
#
#    You should have received a copy of the GNU Affero General Public License
#    along with this program.  If not, see <http://www.gnu.org/licenses/>.
#
##############################################################################

from osv import fields, osv
from tools.translate import _

class product_product(osv.osv):
    _inherit = "product.product"

    def get_product_accounts(self, cr, uid, product_id, context=None):
        """ To get the stock input account, stock output account and stock journal related to product.
        @param product_id: product id
        @return: dictionary which contains information regarding stock input account, stock output account and stock journal
        """
        if context is None:
            context = {}
        product_obj = self.pool.get('product.product').browse(cr, uid, product_id, context=context)

        stock_input_acc = product_obj.property_stock_account_input and product_obj.property_stock_account_input.id or False
        if not stock_input_acc:
            stock_input_acc = product_obj.categ_id.property_stock_account_input_categ and product_obj.categ_id.property_stock_account_input_categ.id or False

        stock_output_acc = product_obj.property_stock_account_output and product_obj.property_stock_account_output.id or False
        if not stock_output_acc:
            stock_output_acc = product_obj.categ_id.property_stock_account_output_categ and product_obj.categ_id.property_stock_account_output_categ.id or False

        journal_id = product_obj.categ_id.property_stock_journal and product_obj.categ_id.property_stock_journal.id or False
        account_variation = product_obj.categ_id.property_stock_variation and product_obj.categ_id.property_stock_variation.id or False

        return {
            'stock_account_input': stock_input_acc,
            'stock_account_output': stock_output_acc,
            'stock_journal': journal_id,
            'property_stock_variation': account_variation
        }

    def do_change_standard_price(self, cr, uid, ids, datas, context={}):
        """ Changes the Standard Price of Product and creates an account move accordingly.
        @param datas : dict. contain default datas like new_price, stock_output_account, stock_input_account, stock_journal
        @param context: A standard dictionary
        @return:

        """
        location_obj = self.pool.get('stock.location')
        move_obj = self.pool.get('account.move')
        move_line_obj = self.pool.get('account.move.line')

        new_price = datas.get('new_price', 0.0)
        stock_output_acc = datas.get('stock_output_account', False)
        stock_input_acc = datas.get('stock_input_account', False)
        journal_id = datas.get('stock_journal', False)
        property_obj=self.pool.get('ir.property')
        product_obj=self.browse(cr,uid,ids)[0]
        account_variation = product_obj.categ_id.property_stock_variation
        account_variation_id = account_variation and account_variation.id or False
        if not account_variation_id: raise osv.except_osv(_('Error!'), _('Variation Account is not specified for Product Category: %s' % (product_obj.categ_id.name)))
        move_ids = []
        loc_ids = location_obj.search(cr, uid,[('usage','=','internal')])
        for rec_id in ids:
            for location in location_obj.browse(cr, uid, loc_ids):
                c = context.copy()
                c.update({
                    'location': location.id,
                    'compute_child': False
                })

                product = self.browse(cr, uid, rec_id, context=c)
                qty = product.qty_available
                diff = product.standard_price - new_price
                if not diff: raise osv.except_osv(_('Error!'), _("Could not find any difference between standard price and new price!"))
                if qty:
                    company_id = location.company_id and location.company_id.id or False
                    if not company_id: raise osv.except_osv(_('Error!'), _('Company is not specified in Location'))
                    #
                    # Accounting Entries
                    #
                    if not journal_id:
                        journal_id = product.categ_id.property_stock_journal and product.categ_id.property_stock_journal.id or False
                    if not journal_id:
                        raise osv.except_osv(_('Error!'),
                            _('There is no journal defined '\
                                'on the product category: "%s" (id: %d)') % \
                                (product.categ_id.name,
                                    product.categ_id.id,))
                    move_id = move_obj.create(cr, uid, {
                                'journal_id': journal_id,
                                'company_id': company_id
                                })

                    move_ids.append(move_id)


                    if diff > 0:
                        if not stock_input_acc:
                            stock_input_acc = product.product_tmpl_id.\
                                property_stock_account_input.id
                        if not stock_input_acc:
                            stock_input_acc = product.categ_id.\
                                    property_stock_account_input_categ.id
                        if not stock_input_acc:
                            raise osv.except_osv(_('Error!'),
                                    _('There is no stock input account defined ' \
                                            'for this product: "%s" (id: %d)') % \
                                            (product.name,
                                                product.id,))
                        amount_diff = qty * diff
                        move_line_obj.create(cr, uid, {
                                    'name': product.name,
                                    'account_id': stock_input_acc,
                                    'debit': amount_diff,
                                    'move_id': move_id,
                                    })
                        move_line_obj.create(cr, uid, {
                                    'name': product.categ_id.name,
                                    'account_id': account_variation_id,
                                    'credit': amount_diff,
                                    'move_id': move_id
                                    })
                    elif diff < 0:
                        if not stock_output_acc:
                            stock_output_acc = product.product_tmpl_id.\
                                property_stock_account_output.id
                        if not stock_output_acc:
                            stock_output_acc = product.categ_id.\
                                    property_stock_account_output_categ.id
                        if not stock_output_acc:
                            raise osv.except_osv(_('Error!'),
                                    _('There is no stock output account defined ' \
                                            'for this product: "%s" (id: %d)') % \
                                            (product.name,
                                                product.id,))
                        amount_diff = qty * -diff
                        move_line_obj.create(cr, uid, {
                                    'name': product.name,
                                    'account_id': stock_output_acc,
                                    'credit': amount_diff,
                                    'move_id': move_id
                                    })
                        move_line_obj.create(cr, uid, {
                                    'name': product.categ_id.name,
                                    'account_id': account_variation_id,
                                    'debit': amount_diff,
                                    'move_id': move_id
                                    })

            self.write(cr, uid, rec_id, {'standard_price': new_price})

        return move_ids

    def view_header_get(self, cr, user, view_id, view_type, context=None):
        if context is None:
            context = {}
        res = super(product_product, self).view_header_get(cr, user, view_id, view_type, context)
        if res: return res
        if (context.get('location', False)):
            return _('Products: ')+self.pool.get('stock.location').browse(cr, user, context['location'], context).name
        return res

    def get_product_available(self, cr, uid, ids, context=None):
        """ Finds whether product is available or not in particular warehouse.
        @return: Dictionary of values
        """
        if context is None:
            context = {}
        states = context.get('states',[])
        what = context.get('what',())
        if not ids:
            ids = self.search(cr, uid, [])
        res = {}.fromkeys(ids, 0.0)
        if not ids:
            return res

        if context.get('shop', False):
            cr.execute('select warehouse_id from sale_shop where id=%s', (int(context['shop']),))
            res2 = cr.fetchone()
            if res2:
                context['warehouse'] = res2[0]

        if context.get('warehouse', False):
            cr.execute('select lot_stock_id from stock_warehouse where id=%s', (int(context['warehouse']),))
            res2 = cr.fetchone()
            if res2:
                context['location'] = res2[0]

        if context.get('location', False):
            if type(context['location']) == type(1):
                location_ids = [context['location']]
            elif type(context['location']) in (type(''), type(u'')):
                location_ids = self.pool.get('stock.location').search(cr, uid, [('name','ilike',context['location'])], context=context)
            else:
                location_ids = context['location']
        else:
            location_ids = []
            wids = self.pool.get('stock.warehouse').search(cr, uid, [], context=context)
            for w in self.pool.get('stock.warehouse').browse(cr, uid, wids, context=context):
                location_ids.append(w.lot_stock_id.id)

        # build the list of ids of children of the location given by id
        if context.get('compute_child',True):
            child_location_ids = self.pool.get('stock.location').search(cr, uid, [('location_id', 'child_of', location_ids)])
            location_ids = child_location_ids or location_ids
        else:
            location_ids = location_ids

        uoms_o = {}
        product2uom = {}
        for product in self.browse(cr, uid, ids, context=context):
            product2uom[product.id] = product.uom_id.id
            uoms_o[product.uom_id.id] = product.uom_id

        results = []
        results2 = []

        from_date=context.get('from_date',False)
        to_date=context.get('to_date',False)
        date_str=False
        if from_date and to_date:
            date_str="date_planned>='%s' and date_planned<='%s'"%(from_date,to_date)
        elif from_date:
            date_str="date_planned>='%s'"%(from_date)
        elif to_date:
            date_str="date_planned<='%s'"%(to_date)

        if 'in' in what:
            # all moves from a location out of the set to a location in the set
            cr.execute(
                'select sum(product_qty), product_id, product_uom '\
                'from stock_move '\
                'where location_id NOT IN %s'\
                'and location_dest_id IN %s'\
                'and product_id IN %s'\
                'and state IN %s' + (date_str and 'and '+date_str+' ' or '') +''\
                'group by product_id,product_uom',(tuple(location_ids),tuple(location_ids),tuple(ids),tuple(states),)
            )
            results = cr.fetchall()
        if 'out' in what:
            # all moves from a location in the set to a location out of the set
            cr.execute(
                'select sum(product_qty), product_id, product_uom '\
                'from stock_move '\
                'where location_id IN %s'\
                'and location_dest_id NOT IN %s '\
                'and product_id  IN %s'\
                'and state in %s' + (date_str and 'and '+date_str+' ' or '') + ''\
                'group by product_id,product_uom',(tuple(location_ids),tuple(location_ids),tuple(ids),tuple(states),)
            )
            results2 = cr.fetchall()
        uom_obj = self.pool.get('product.uom')
        uoms = map(lambda x: x[2], results) + map(lambda x: x[2], results2)
        if context.get('uom', False):
            uoms += [context['uom']]

        uoms = filter(lambda x: x not in uoms_o.keys(), uoms)
        if uoms:
            uoms = uom_obj.browse(cr, uid, list(set(uoms)), context=context)
        for o in uoms:
            uoms_o[o.id] = o
        for amount, prod_id, prod_uom in results:
            amount = uom_obj._compute_qty_obj(cr, uid, uoms_o[prod_uom], amount,
                    uoms_o[context.get('uom', False) or product2uom[prod_id]])
            res[prod_id] += amount
        for amount, prod_id, prod_uom in results2:
            amount = uom_obj._compute_qty_obj(cr, uid, uoms_o[prod_uom], amount,
                    uoms_o[context.get('uom', False) or product2uom[prod_id]])
            res[prod_id] -= amount
        return res

    def _product_available(self, cr, uid, ids, field_names=None, arg=False, context=None):
        """ Finds the incoming and outgoing quantity of product.
        @return: Dictionary of values
        """
        if not field_names:
            field_names = []
        if context is None:
            context = {}
        res = {}
        for id in ids:
            res[id] = {}.fromkeys(field_names, 0.0)
        for f in field_names:
            c = context.copy()
            if f == 'qty_available':
                c.update({ 'states': ('done',), 'what': ('in', 'out') })
            if f == 'virtual_available':
                c.update({ 'states': ('confirmed','waiting','assigned','done'), 'what': ('in', 'out') })
            if f == 'incoming_qty':
                c.update({ 'states': ('confirmed','waiting','assigned'), 'what': ('in',) })
            if f == 'outgoing_qty':
                c.update({ 'states': ('confirmed','waiting','assigned'), 'what': ('out',) })
            stock = self.get_product_available(cr, uid, ids, context=c)
            for id in ids:
                res[id][f] = stock.get(id, 0.0)
        return res

    _columns = {
        'qty_available': fields.function(_product_available, method=True, type='float', string='Real Stock', help="Current quantities of products in selected locations or all internal if none have been selected.", multi='qty_available'),
        'virtual_available': fields.function(_product_available, method=True, type='float', string='Virtual Stock', help="Future stock for this product according to the selected locations or all internal if none have been selected. Computed as: Real Stock - Outgoing + Incoming.", multi='qty_available'),
        'incoming_qty': fields.function(_product_available, method=True, type='float', string='Incoming', help="Quantities of products that are planned to arrive in selected locations or all internal if none have been selected.", multi='qty_available'),
        'outgoing_qty': fields.function(_product_available, method=True, type='float', string='Outgoing', help="Quantities of products that are planned to leave in selected locations or all internal if none have been selected.", multi='qty_available'),
        'track_production': fields.boolean('Track Production Lots' , help="Forces to use a Production Lot during production order"),
        'track_incoming': fields.boolean('Track Incoming Lots', help="Forces to use a tracking lot during receptions"),
        'track_outgoing': fields.boolean('Track Outgoing Lots', help="Forces to use a tracking lot during deliveries"),
        'location_id': fields.dummy(string='Location', relation='stock.location', type='many2one'),
        'valuation':fields.selection([('manual_periodic', 'Periodic (manual)'),
                                        ('real_time','Real Time (automatized)'),], 'Stock Valuation', help="Decide if the system must automatically creates account moves based on stock moves", required=True),
    }

    _defaults = {
        'valuation': lambda *a: 'manual_periodic',
    }

    def fields_view_get(self, cr, uid, view_id=None, view_type='form', context=None, toolbar=False, submenu=False):
        res = super(product_product,self).fields_view_get(cr, uid, view_id, view_type, context, toolbar=toolbar, submenu=submenu)
        if context is None:
            context = {}
        if ('location' in context) and context['location']:
            location_info = self.pool.get('stock.location').browse(cr, uid, context['location'])
            fields=res.get('fields',{})
            if fields:
                if location_info.usage == 'supplier':
                    if fields.get('virtual_available'):
                        res['fields']['virtual_available']['string'] = _('Future Receptions')
                    if fields.get('qty_available'):
                        res['fields']['qty_available']['string'] = _('Received Qty')

                if location_info.usage == 'internal':
                    if fields.get('virtual_available'):
                        res['fields']['virtual_available']['string'] = _('Future Stock')

                if location_info.usage == 'customer':
                    if fields.get('virtual_available'):
                        res['fields']['virtual_available']['string'] = _('Future Deliveries')
                    if fields.get('qty_available'):
                        res['fields']['qty_available']['string'] = _('Delivered Qty')

                if location_info.usage == 'inventory':
                    if fields.get('virtual_available'):
                        res['fields']['virtual_available']['string'] = _('Future P&L')
                    if fields.get('qty_available'):
                        res['fields']['qty_available']['string'] = _('P&L Qty')

                if location_info.usage == 'procurement':
                    if fields.get('virtual_available'):
                        res['fields']['virtual_available']['string'] = _('Future Qty')
                    if fields.get('qty_available'):
                        res['fields']['qty_available']['string'] = _('Unplanned Qty')

                if location_info.usage == 'production':
                    if fields.get('virtual_available'):
                        res['fields']['virtual_available']['string'] = _('Future Productions')
                    if fields.get('qty_available'):
                        res['fields']['qty_available']['string'] = _('Produced Qty')
        return res

product_product()

class product_template(osv.osv):
    _name = 'product.template'
    _inherit = 'product.template'
    _columns = {
        'property_stock_procurement': fields.property(
            'stock.location',
            type='many2one',
            relation='stock.location',
            string="Procurement Location",
            method=True,
            view_load=True,
            domain=[('usage','like','procurement')],
            help="For the current product, this stock location will be used, instead of the default one, as the source location for stock moves generated by procurements"),
        'property_stock_production': fields.property(
            'stock.location',
            type='many2one',
            relation='stock.location',
            string="Production Location",
            method=True,
            view_load=True,
            domain=[('usage','like','production')],
            help="For the current product, this stock location will be used, instead of the default one, as the source location for stock moves generated by production orders"),
        'property_stock_inventory': fields.property(
            'stock.location',
            type='many2one',
            relation='stock.location',
            string="Inventory Location",
            method=True,
            view_load=True,
            domain=[('usage','like','inventory')],
            help="For the current product, this stock location will be used, instead of the default one, as the source location for stock moves generated when you do an inventory"),
        'property_stock_account_input': fields.property('account.account',
            type='many2one', relation='account.account',
            string='Stock Input Account', method=True, view_load=True,
            help='This account will be used, instead of the default one, to value input stock'),
        'property_stock_account_output': fields.property('account.account',
            type='many2one', relation='account.account',
            string='Stock Output Account', method=True, view_load=True,
            help='This account will be used, instead of the default one, to value output stock'),
    }

product_template()

class product_category(osv.osv):

    _inherit = 'product.category'
    _columns = {
        'property_stock_journal': fields.property('account.journal',
            relation='account.journal', type='many2one',
            string='Stock journal', method=True, view_load=True,
            help="This journal will be used for the accounting move generated by stock move"),
        'property_stock_account_input_categ': fields.property('account.account',
            type='many2one', relation='account.account',
            string='Stock Input Account', method=True, view_load=True,
            help='This account will be used to value the input stock'),
        'property_stock_account_output_categ': fields.property('account.account',
            type='many2one', relation='account.account',
            string='Stock Output Account', method=True, view_load=True,
            help='This account will be used to value the output stock'),
        'property_stock_variation': fields.property('account.account',
            type='many2one',
            relation='account.account',
            string="Stock Variation Account",
            method=True, view_load=True,
            help="This account will be used in product when valuation type is real-time valuation ",),
    }

product_category()

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