addons/product_visible_discount/product_visible_discount.py

   1 # -*- encoding: utf-8 -*-
   2 ##############################################################################
   3 #
   4 #    OpenERP, Open Source Management Solution
   5 #    Copyright (C) 2004-2008 Tiny SPRL (<http://tiny.be>). All Rights Reserved
   6 #    $Id$
   7 #
   8 #    This program is free software: you can redistribute it and/or modify
   9 #    it under the terms of the GNU Affero General Public License as published by
  10 #    the Free Software Foundation, either version 3 of the License, or
  11 #    (at your option) any later version.
  12 #
  13 #    This program is distributed in the hope that it will be useful,
  14 #    but WITHOUT ANY WARRANTY; without even the implied warranty of
  15 #    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  16 #    GNU Affero General Public License for more details.
  17 #
  18 #    You should have received a copy of the GNU Affero General Public License
  19 #    along with this program.  If not, see <http://www.gnu.org/licenses/>.
  20 #
  21 ##############################################################################
  22
  23 from osv import fields, osv
  24 from osv.osv import except_osv
  25 from tools.translate import _
  26
  27 class product_pricelist(osv.osv):
  28     _inherit = 'product.pricelist'
  29
  30     _columns ={
  31         'visible_discount': fields.boolean('Visible Discount'),
  32     }
  33     _defaults = {
  34          'visible_discount': True,
  35     }
  36
  37 product_pricelist()
  38
  39 class sale_order_line(osv.osv):
  40     _inherit = "sale.order.line"
  41
  42     def product_id_change(self, cr, uid, ids, pricelist, product, qty=0,
  43             uom=False, qty_uos=0, uos=False, name='', partner_id=False,
  44             lang=False, update_tax=True,date_order=False,packaging=False,fiscal_position=False, flag=False):
  45
  46         def get_real_price(res_dict, product_id, qty, uom, pricelist):
  47             item_obj = self.pool.get('product.pricelist.item')
  48             price_type_obj = self.pool.get('product.price.type')
  49             product_obj = self.pool.get('product.product')
  50             template_obj = self.pool.get('product.template')
  51             field_name = 'list_price'
  52
  53             if res_dict.get('item_id',False) and res_dict['item_id'].get(pricelist,False):
  54                 item = res_dict['item_id'].get(pricelist,False)
  55                 item_base = item_obj.read(cr, uid, [item], ['base'])[0]['base']
  56                 if item_base > 0:
  57                     field_name = price_type_obj.browse(cr, uid, item_base).field
  58
  59             product = product_obj.browse(cr, uid, product_id, context)
  60             product_tmpl_id = product.product_tmpl_id.id
  61
  62             product_read = template_obj.read(cr, uid, product_tmpl_id, [field_name], context)
  63
  64             factor = 1.0
  65             if uom and uom != product.uom_id.id:
  66                 product_uom_obj = self.pool.get('product.uom')
  67                 uom_data = product_uom_obj.browse(cr, uid,  product.uom_id.id)
  68                 factor = uom_data.factor
  69             return product_read[field_name] * factor
  70
  71
  72         res=super(sale_order_line, self).product_id_change(cr, uid, ids, pricelist, product, qty,
  73             uom, qty_uos, uos, name, partner_id,
  74             lang, update_tax,date_order,fiscal_position=fiscal_position,flag=flag)
  75
  76         context = {'lang': lang, 'partner_id': partner_id}
  77         result=res['value']
  78         pricelist_obj=self.pool.get('product.pricelist')
  79         product_obj = self.pool.get('product.product')
  80         product_uom_obj = self.pool.get('product.uom')
  81         if product:
  82             if result.get('price_unit',False):
  83                 price=result['price_unit']
  84             else:
  85                 return res
  86
  87             product = product_obj.browse(cr, uid, product, context)
  88             list_price = pricelist_obj.price_get(cr, uid, [pricelist],
  89                     product.id, qty or 1.0, partner_id, {'uom': uom,'date': date_order })
  90
  91             pricelists = pricelist_obj.read(cr,uid,[pricelist],['visible_discount'])
  92
  93             old_uom = product.uos_id or product.uom_id
  94             new_list_price = get_real_price(list_price, product.id, qty, uom, pricelist)
  95             if(len(pricelists)>0 and pricelists[0]['visible_discount'] and list_price[pricelist] != 0):
  96                 discount = (new_list_price - price) / new_list_price * 100
  97                 result['price_unit'] = new_list_price
  98                 result['discount'] = discount
  99             else:
 100                 result['discount'] = 0.0
 101         return res
 102
 103 sale_order_line()
 104
 105 class account_invoice_line(osv.osv):
 106     _inherit = "account.invoice.line"
 107
 108     def product_id_change(self, cr, uid, ids, product, uom, qty=0, name='', type='out_invoice', partner_id=False, fposition_id=False, price_unit=False, address_invoice_id=False, currency_id=False, context=None):
 109         res = super(account_invoice_line, self).product_id_change(cr, uid, ids, product, uom, qty, name, type, partner_id, fposition_id, price_unit, address_invoice_id, currency_id, context=context)
 110
 111         def get_real_price(res_dict, product_id, qty, uom, pricelist):
 112             item_obj = self.pool.get('product.pricelist.item')
 113             price_type_obj = self.pool.get('product.price.type')
 114             product_obj = self.pool.get('product.product')
 115             template_obj = self.pool.get('product.template')
 116             field_name = 'list_price'
 117
 118             if res_dict.get('item_id',False) and res_dict['item_id'].get(pricelist,False):
 119                 item = res_dict['item_id'].get(pricelist,False)
 120                 item_base = item_obj.read(cr, uid, [item], ['base'])[0]['base']
 121                 if item_base > 0:
 122                     field_name = price_type_obj.browse(cr, uid, item_base).field
 123
 124             product = product_obj.browse(cr, uid, product_id, context)
 125             product_tmpl_id = product.product_tmpl_id.id
 126
 127             product_read = template_obj.read(cr, uid, product_tmpl_id, [field_name], context)
 128
 129             factor = 1.0
 130             if uom and uom != product.uom_id.id:
 131                 product_uom_obj = self.pool.get('product.uom')
 132                 uom_data = product_uom_obj.browse(cr, uid,  product.uom_id.id)
 133                 factor = uom_data.factor
 134             return product_read[field_name] * factor
 135
 136         if product:
 137             pricelist_obj = self.pool.get('product.pricelist')
 138             partner_obj = self.pool.get('res.partner')
 139             product = self.pool.get('product.product').browse(cr, uid, product, context=context)
 140             result = res['value']
 141             pricelist = False
 142             real_price = 0.00
 143             if type in ('in_invoice', 'in_refund'):
 144                 if not price_unit and partner_id:
 145                     pricelist =partner_obj.browse(cr, uid, partner_id).property_product_pricelist_purchase.id
 146                     if not pricelist:
 147                         raise osv.except_osv(_('No Purchase Pricelist Found !'),_("You must first define a pricelist for Supplier !"))
 148                     price_unit_res = pricelist_obj.price_get(cr, uid, [pricelist], product.id, qty or 1.0, partner_id, {'uom': uom})[pricelist]
 149                     price_unit = price_unit_res[pricelist]
 150                     real_price = get_real_price(price_unit_res, product.id, qty, uom, pricelist)
 151             else:
 152                 if partner_id:
 153                     pricelist = partner_obj.browse(cr, uid, partner_id).property_product_pricelist.id
 154                     if not pricelist:
 155                         raise osv.except_osv(_('No Sale Pricelist Found '),_("You must first define a pricelist for Customer !"))
 156                     price_unit_res = pricelist_obj.price_get(cr, uid, [pricelist], product.id, qty or 1.0, partner_id, {'uom': uom})
 157                     price_unit = price_unit_res[pricelist]
 158
 159                     real_price = get_real_price(price_unit_res, product.id, qty, uom, pricelist)
 160             if pricelist:
 161                 pricelists=pricelist_obj.read(cr,uid,[pricelist],['visible_discount'])
 162                 if(len(pricelists)>0 and pricelists[0]['visible_discount'] and real_price != 0):
 163                     discount=(real_price-price_unit) / real_price * 100
 164                     result['price_unit'] = real_price
 165                     result['discount'] = discount
 166                 else:
 167                     result['discount']=0.0
 168         return res
 169
 170 account_invoice_line()
 171
 172 # vim:expandtab:smartindent:tabstop=4:softtabstop=4:shiftwidth=4: