[FIX] product: if 'date' is passed as False in context of price_get_multi(), it shoul...
[odoo/odoo.git] / addons / product / pricelist.py
1 # -*- coding: utf-8 -*-
2 ##############################################################################
3 #
4 #    OpenERP, Open Source Management Solution
5 #    Copyright (C) 2004-2010 Tiny SPRL (<http://tiny.be>).
6 #
7 #    This program is free software: you can redistribute it and/or modify
8 #    it under the terms of the GNU Affero General Public License as
9 #    published by the Free Software Foundation, either version 3 of the
10 #    License, or (at your option) any later version.
11 #
12 #    This program is distributed in the hope that it will be useful,
13 #    but WITHOUT ANY WARRANTY; without even the implied warranty of
14 #    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
15 #    GNU Affero General Public License for more details.
16 #
17 #    You should have received a copy of the GNU Affero General Public License
18 #    along with this program.  If not, see <http://www.gnu.org/licenses/>.
19 #
20 ##############################################################################
21
22 import time
23
24 from _common import rounding
25
26 from openerp.osv import fields, osv
27 from openerp.tools.translate import _
28
29 import openerp.addons.decimal_precision as dp
30
31
32 class price_type(osv.osv):
33     """
34         The price type is used to points which field in the product form
35         is a price and in which currency is this price expressed.
36         When a field is a price, you can use it in pricelists to base
37         sale and purchase prices based on some fields of the product.
38     """
39     def _price_field_get(self, cr, uid, context=None):
40         mf = self.pool.get('ir.model.fields')
41         ids = mf.search(cr, uid, [('model','in', (('product.product'),('product.template'))), ('ttype','=','float')], context=context)
42         res = []
43         for field in mf.browse(cr, uid, ids, context=context):
44             res.append((field.name, field.field_description))
45         return res
46
47     def _get_currency(self, cr, uid, ctx):
48         comp = self.pool.get('res.users').browse(cr,uid,uid).company_id
49         if not comp:
50             comp_id = self.pool.get('res.company').search(cr, uid, [])[0]
51             comp = self.pool.get('res.company').browse(cr, uid, comp_id)
52         return comp.currency_id.id
53
54     _name = "product.price.type"
55     _description = "Price Type"
56     _columns = {
57         "name" : fields.char("Price Name", size=32, required=True, translate=True, help="Name of this kind of price."),
58         "active" : fields.boolean("Active"),
59         "field" : fields.selection(_price_field_get, "Product Field", size=32, required=True, help="Associated field in the product form."),
60         "currency_id" : fields.many2one('res.currency', "Currency", required=True, help="The currency the field is expressed in."),
61     }
62     _defaults = {
63         "active": lambda *args: True,
64         "currency_id": _get_currency
65     }
66
67 price_type()
68
69 #----------------------------------------------------------
70 # Price lists
71 #----------------------------------------------------------
72
73 class product_pricelist_type(osv.osv):
74     _name = "product.pricelist.type"
75     _description = "Pricelist Type"
76     _columns = {
77         'name': fields.char('Name',size=64, required=True, translate=True),
78         'key': fields.char('Key', size=64, required=True, help="Used in the code to select specific prices based on the context. Keep unchanged."),
79     }
80 product_pricelist_type()
81
82
83 class product_pricelist(osv.osv):
84     def _pricelist_type_get(self, cr, uid, context=None):
85         pricelist_type_obj = self.pool.get('product.pricelist.type')
86         pricelist_type_ids = pricelist_type_obj.search(cr, uid, [], order='name')
87         pricelist_types = pricelist_type_obj.read(cr, uid, pricelist_type_ids, ['key','name'], context=context)
88
89         res = []
90
91         for type in pricelist_types:
92             res.append((type['key'],type['name']))
93
94         return res
95
96     _name = "product.pricelist"
97     _description = "Pricelist"
98     _columns = {
99         'name': fields.char('Pricelist Name',size=64, required=True, translate=True),
100         'active': fields.boolean('Active', help="If unchecked, it will allow you to hide the pricelist without removing it."),
101         'type': fields.selection(_pricelist_type_get, 'Pricelist Type', required=True),
102         'version_id': fields.one2many('product.pricelist.version', 'pricelist_id', 'Pricelist Versions'),
103         'currency_id': fields.many2one('res.currency', 'Currency', required=True),
104         'company_id': fields.many2one('res.company', 'Company'),
105     }
106
107     def name_get(self, cr, uid, ids, context=None):
108         result= []
109         if not all(ids):
110             return result
111         for pl in self.browse(cr, uid, ids, context=context):
112             name = pl.name + ' ('+ pl.currency_id.name + ')'
113             result.append((pl.id,name))
114         return result
115
116
117     def _get_currency(self, cr, uid, ctx):
118         comp = self.pool.get('res.users').browse(cr, uid, uid).company_id
119         if not comp:
120             comp_id = self.pool.get('res.company').search(cr, uid, [])[0]
121             comp = self.pool.get('res.company').browse(cr, uid, comp_id)
122         return comp.currency_id.id
123
124     _defaults = {
125         'active': lambda *a: 1,
126         "currency_id": _get_currency
127     }
128
129     #def price_get_multi(self, cr, uid, product_ids, context=None):
130     def price_get_multi(self, cr, uid, pricelist_ids, products_by_qty_by_partner, context=None):
131         """multi products 'price_get'.
132            @param pricelist_ids:
133            @param products_by_qty:
134            @param partner:
135            @param context: {
136              'date': Date of the pricelist (%Y-%m-%d),}
137            @return: a dict of dict with product_id as key and a dict 'price by pricelist' as value
138         """
139
140         def _create_parent_category_list(id, lst):
141             if not id:
142                 return []
143             parent = product_category_tree.get(id)
144             if parent:
145                 lst.append(parent)
146                 return _create_parent_category_list(parent, lst)
147             else:
148                 return lst
149         # _create_parent_category_list
150
151         if context is None:
152             context = {}
153
154         date = context.get('date') or time.strftime('%Y-%m-%d')
155         if 'date' in context and context['date']:
156             date = context['date']
157
158         currency_obj = self.pool.get('res.currency')
159         product_obj = self.pool.get('product.product')
160         product_category_obj = self.pool.get('product.category')
161         product_uom_obj = self.pool.get('product.uom')
162         supplierinfo_obj = self.pool.get('product.supplierinfo')
163         price_type_obj = self.pool.get('product.price.type')
164
165         # product.pricelist.version:
166         if not pricelist_ids:
167             pricelist_ids = self.pool.get('product.pricelist').search(cr, uid, [], context=context)
168
169         pricelist_version_ids = self.pool.get('product.pricelist.version').search(cr, uid, [
170                                                         ('pricelist_id', 'in', pricelist_ids),
171                                                         '|',
172                                                         ('date_start', '=', False),
173                                                         ('date_start', '<=', date),
174                                                         '|',
175                                                         ('date_end', '=', False),
176                                                         ('date_end', '>=', date),
177                                                     ])
178         if len(pricelist_ids) != len(pricelist_version_ids):
179             raise osv.except_osv(_('Warning!'), _("At least one pricelist has no active version !\nPlease create or activate one."))
180
181         # product.product:
182         product_ids = [i[0] for i in products_by_qty_by_partner]
183         #products = dict([(item['id'], item) for item in product_obj.read(cr, uid, product_ids, ['categ_id', 'product_tmpl_id', 'uos_id', 'uom_id'])])
184         products = product_obj.browse(cr, uid, product_ids, context=context)
185         products_dict = dict([(item.id, item) for item in products])
186
187         # product.category:
188         product_category_ids = product_category_obj.search(cr, uid, [])
189         product_categories = product_category_obj.read(cr, uid, product_category_ids, ['parent_id'])
190         product_category_tree = dict([(item['id'], item['parent_id'][0]) for item in product_categories if item['parent_id']])
191
192         results = {}
193         for product_id, qty, partner in products_by_qty_by_partner:
194             for pricelist_id in pricelist_ids:
195                 price = False
196
197                 tmpl_id = products_dict[product_id].product_tmpl_id and products_dict[product_id].product_tmpl_id.id or False
198
199                 categ_id = products_dict[product_id].categ_id and products_dict[product_id].categ_id.id or False
200                 categ_ids = _create_parent_category_list(categ_id, [categ_id])
201                 if categ_ids:
202                     categ_where = '(categ_id IN (' + ','.join(map(str, categ_ids)) + '))'
203                 else:
204                     categ_where = '(categ_id IS NULL)'
205
206                 if partner:
207                     partner_where = 'base <> -2 OR %s IN (SELECT name FROM product_supplierinfo WHERE product_id = %s) '
208                     partner_args = (partner, tmpl_id)
209                 else:
210                     partner_where = 'base <> -2 '
211                     partner_args = ()
212
213                 cr.execute(
214                     'SELECT i.*, pl.currency_id '
215                     'FROM product_pricelist_item AS i, '
216                         'product_pricelist_version AS v, product_pricelist AS pl '
217                     'WHERE (product_tmpl_id IS NULL OR product_tmpl_id = %s) '
218                         'AND (product_id IS NULL OR product_id = %s) '
219                         'AND (' + categ_where + ' OR (categ_id IS NULL)) '
220                         'AND (' + partner_where + ') '
221                         'AND price_version_id = %s '
222                         'AND (min_quantity IS NULL OR min_quantity <= %s) '
223                         'AND i.price_version_id = v.id AND v.pricelist_id = pl.id '
224                     'ORDER BY sequence',
225                     (tmpl_id, product_id) + partner_args + (pricelist_version_ids[0], qty))
226                 res1 = cr.dictfetchall()
227                 uom_price_already_computed = False
228                 for res in res1:
229                     if res:
230                         if res['base'] == -1:
231                             if not res['base_pricelist_id']:
232                                 price = 0.0
233                             else:
234                                 price_tmp = self.price_get(cr, uid,
235                                         [res['base_pricelist_id']], product_id,
236                                         qty, context=context)[res['base_pricelist_id']]
237                                 ptype_src = self.browse(cr, uid, res['base_pricelist_id']).currency_id.id
238                                 uom_price_already_computed = True
239                                 price = currency_obj.compute(cr, uid,
240                                         ptype_src, res['currency_id'],
241                                         price_tmp, round=False,
242                                         context=context)
243                         elif res['base'] == -2:
244                             # this section could be improved by moving the queries outside the loop:
245                             where = []
246                             if partner:
247                                 where = [('name', '=', partner) ]
248                             sinfo = supplierinfo_obj.search(cr, uid,
249                                     [('product_id', '=', tmpl_id)] + where)
250                             price = 0.0
251                             if sinfo:
252                                 qty_in_product_uom = qty
253                                 product_default_uom = product_obj.read(cr, uid, [product_id], ['uom_id'])[0]['uom_id'][0]
254                                 supplier = supplierinfo_obj.browse(cr, uid, sinfo, context=context)[0]
255                                 seller_uom = supplier.product_uom and supplier.product_uom.id or False
256                                 if seller_uom and product_default_uom and product_default_uom != seller_uom:
257                                     uom_price_already_computed = True
258                                     qty_in_product_uom = product_uom_obj._compute_qty(cr, uid, product_default_uom, qty, to_uom_id=seller_uom)
259                                 cr.execute('SELECT * ' \
260                                         'FROM pricelist_partnerinfo ' \
261                                         'WHERE suppinfo_id IN %s' \
262                                             'AND min_quantity <= %s ' \
263                                         'ORDER BY min_quantity DESC LIMIT 1', (tuple(sinfo),qty_in_product_uom,))
264                                 res2 = cr.dictfetchone()
265                                 if res2:
266                                     price = res2['price']
267                         else:
268                             price_type = price_type_obj.browse(cr, uid, int(res['base']))
269                             uom_price_already_computed = True
270                             price = currency_obj.compute(cr, uid,
271                                     price_type.currency_id.id, res['currency_id'],
272                                     product_obj.price_get(cr, uid, [product_id],
273                                     price_type.field, context=context)[product_id], round=False, context=context)
274
275                         if price is not False:
276                             price_limit = price
277                             price = price * (1.0+(res['price_discount'] or 0.0))
278                             price = rounding(price, res['price_round']) #TOFIX: rounding with tools.float_rouding
279                             price += (res['price_surcharge'] or 0.0)
280                             if res['price_min_margin']:
281                                 price = max(price, price_limit+res['price_min_margin'])
282                             if res['price_max_margin']:
283                                 price = min(price, price_limit+res['price_max_margin'])
284                             break
285
286                     else:
287                         # False means no valid line found ! But we may not raise an
288                         # exception here because it breaks the search
289                         price = False
290
291                 if price:
292                     results['item_id'] = res['id']
293                     if 'uom' in context and not uom_price_already_computed:
294                         product = products_dict[product_id]
295                         uom = product.uos_id or product.uom_id
296                         price = product_uom_obj._compute_price(cr, uid, uom.id, price, context['uom'])
297
298                 if results.get(product_id):
299                     results[product_id][pricelist_id] = price
300                 else:
301                     results[product_id] = {pricelist_id: price}
302
303         return results
304
305     def price_get(self, cr, uid, ids, prod_id, qty, partner=None, context=None):
306         res_multi = self.price_get_multi(cr, uid, pricelist_ids=ids, products_by_qty_by_partner=[(prod_id, qty, partner)], context=context)
307         res = res_multi[prod_id]
308         res.update({'item_id': {ids[-1]: res_multi.get('item_id', ids[-1])}})
309         return res
310
311 product_pricelist()
312
313
314 class product_pricelist_version(osv.osv):
315     _name = "product.pricelist.version"
316     _description = "Pricelist Version"
317     _columns = {
318         'pricelist_id': fields.many2one('product.pricelist', 'Price List',
319             required=True, select=True, ondelete='cascade'),
320         'name': fields.char('Name', size=64, required=True, translate=True),
321         'active': fields.boolean('Active',
322             help="When a version is duplicated it is set to non active, so that the " \
323             "dates do not overlaps with original version. You should change the dates " \
324             "and reactivate the pricelist"),
325         'items_id': fields.one2many('product.pricelist.item',
326             'price_version_id', 'Price List Items', required=True),
327         'date_start': fields.date('Start Date', help="First valid date for the version."),
328         'date_end': fields.date('End Date', help="Last valid date for the version."),
329         'company_id': fields.related('pricelist_id','company_id',type='many2one',
330             readonly=True, relation='res.company', string='Company', store=True)
331     }
332     _defaults = {
333         'active': lambda *a: 1,
334     }
335
336     # We desactivate duplicated pricelists, so that dates do not overlap
337     def copy(self, cr, uid, id, default=None, context=None):
338         if not default: default= {}
339         default['active'] = False
340         return super(product_pricelist_version, self).copy(cr, uid, id, default, context)
341
342     def _check_date(self, cursor, user, ids, context=None):
343         for pricelist_version in self.browse(cursor, user, ids, context=context):
344             if not pricelist_version.active:
345                 continue
346             where = []
347             if pricelist_version.date_start:
348                 where.append("((date_end>='%s') or (date_end is null))" % (pricelist_version.date_start,))
349             if pricelist_version.date_end:
350                 where.append("((date_start<='%s') or (date_start is null))" % (pricelist_version.date_end,))
351
352             cursor.execute('SELECT id ' \
353                     'FROM product_pricelist_version ' \
354                     'WHERE '+' and '.join(where) + (where and ' and ' or '')+
355                         'pricelist_id = %s ' \
356                         'AND active ' \
357                         'AND id <> %s', (
358                             pricelist_version.pricelist_id.id,
359                             pricelist_version.id))
360             if cursor.fetchall():
361                 return False
362         return True
363
364     _constraints = [
365         (_check_date, 'You cannot have 2 pricelist versions that overlap!',
366             ['date_start', 'date_end'])
367     ]
368
369 product_pricelist_version()
370
371 class product_pricelist_item(osv.osv):
372     def _price_field_get(self, cr, uid, context=None):
373         pt = self.pool.get('product.price.type')
374         ids = pt.search(cr, uid, [], context=context)
375         result = []
376         for line in pt.browse(cr, uid, ids, context=context):
377             result.append((line.id, line.name))
378
379         result.append((-1, _('Other Pricelist')))
380         result.append((-2, _('Supplier Prices on the product form')))
381         return result
382
383     _name = "product.pricelist.item"
384     _description = "Pricelist item"
385     _order = "sequence, min_quantity desc"
386     _defaults = {
387         'base': lambda *a: -1,
388         'min_quantity': lambda *a: 0,
389         'sequence': lambda *a: 5,
390         'price_discount': lambda *a: 0,
391     }
392
393     def _check_recursion(self, cr, uid, ids, context=None):
394         for obj_list in self.browse(cr, uid, ids, context=context):
395             if obj_list.base == -1:
396                 main_pricelist = obj_list.price_version_id.pricelist_id.id
397                 other_pricelist = obj_list.base_pricelist_id.id
398                 if main_pricelist == other_pricelist:
399                     return False
400         return True
401
402     def _check_margin(self, cr, uid, ids, context=None):
403         for item in self.browse(cr, uid, ids, context=context):
404             if item.price_max_margin and item.price_min_margin and (item.price_min_margin > item.price_max_margin):
405                 return False
406         return True
407
408     _columns = {
409         'name': fields.char('Rule Name', size=64, help="Explicit rule name for this pricelist line."),
410         'price_version_id': fields.many2one('product.pricelist.version', 'Price List Version', required=True, select=True, ondelete='cascade'),
411         'product_tmpl_id': fields.many2one('product.template', 'Product Template', ondelete='cascade', help="Specify a template if this rule only applies to one product template. Keep empty otherwise."),
412         'product_id': fields.many2one('product.product', 'Product', ondelete='cascade', help="Specify a product if this rule only applies to one product. Keep empty otherwise."),
413         'categ_id': fields.many2one('product.category', 'Product Category', ondelete='cascade', help="Specify a product category if this rule only applies to products belonging to this category or its children categories. Keep empty otherwise."),
414
415         'min_quantity': fields.integer('Min. Quantity', required=True, help="Specify the minimum quantity that needs to be bought/sold for the rule to apply."),
416         'sequence': fields.integer('Sequence', required=True, help="Gives the order in which the pricelist items will be checked. The evaluation gives highest priority to lowest sequence and stops as soon as a matching item is found."),
417         'base': fields.selection(_price_field_get, 'Based on', required=True, size=-1, help="Base price for computation."),
418         'base_pricelist_id': fields.many2one('product.pricelist', 'Other Pricelist'),
419
420         'price_surcharge': fields.float('Price Surcharge',
421             digits_compute= dp.get_precision('Product Price'), help='Specify the fixed amount to add or substract(if negative) to the amount calculated with the discount.'),
422         'price_discount': fields.float('Price Discount', digits=(16,4)),
423         'price_round': fields.float('Price Rounding',
424             digits_compute= dp.get_precision('Product Price'),
425             help="Sets the price so that it is a multiple of this value.\n" \
426               "Rounding is applied after the discount and before the surcharge.\n" \
427               "To have prices that end in 9.99, set rounding 10, surcharge -0.01" \
428             ),
429         'price_min_margin': fields.float('Min. Price Margin',
430             digits_compute= dp.get_precision('Product Price'), help='Specify the minimum amount of margin over the base price.'),
431         'price_max_margin': fields.float('Max. Price Margin',
432             digits_compute= dp.get_precision('Product Price'), help='Specify the maximum amount of margin over the base price.'),
433         'company_id': fields.related('price_version_id','company_id',type='many2one',
434             readonly=True, relation='res.company', string='Company', store=True)
435     }
436
437     _constraints = [
438         (_check_recursion, 'Error! You cannot assign the Main Pricelist as Other Pricelist in PriceList Item!', ['base_pricelist_id']),
439         (_check_margin, 'Error! The minimum margin should be lower than the maximum margin.', ['price_min_margin', 'price_max_margin'])
440     ]
441
442     def product_id_change(self, cr, uid, ids, product_id, context=None):
443         if not product_id:
444             return {}
445         prod = self.pool.get('product.product').read(cr, uid, [product_id], ['code','name'])
446         if prod[0]['code']:
447             return {'value': {'name': prod[0]['code']}}
448         return {}
449 product_pricelist_item()
450
451
452
453 # vim:expandtab:smartindent:tabstop=4:softtabstop=4:shiftwidth=4:
454