addons/account_tax_include/invoice_tax_incl.py

   1 # -*- encoding: utf-8 -*-
   2 ##############################################################################
   3 #
   4 # Copyright (c) 2004-2006 TINY SPRL. (http://tiny.be) All Rights Reserved.
   5 #
   6 # $Id: account.py 1005 2005-07-25 08:41:42Z nicoe $
   7 #
   8 # WARNING: This program as such is intended to be used by professional
   9 # programmers who take the whole responsability of assessing all potential
  10 # consequences resulting from its eventual inadequacies and bugs
  11 # End users who are looking for a ready-to-use solution with commercial
  12 # garantees and support are strongly adviced to contract a Free Software
  13 # Service Company
  14 #
  15 # This program is Free Software; you can redistribute it and/or
  16 # modify it under the terms of the GNU General Public License
  17 # as published by the Free Software Foundation; either version 2
  18 # of the License, or (at your option) any later version.
  19 #
  20 # This program is distributed in the hope that it will be useful,
  21 # but WITHOUT ANY WARRANTY; without even the implied warranty of
  22 # MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  23 # GNU General Public License for more details.
  24 #
  25 # You should have received a copy of the GNU General Public License
  26 # along with this program; if not, write to the Free Software
  27 # Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA  02111-1307, USA.
  28 #
  29 ##############################################################################
  30
  31 import time
  32 import netsvc
  33 from osv import fields, osv
  34 import ir
  35
  36 class account_invoice(osv.osv):
  37         def _amount_untaxed(self, cr, uid, ids, name, args, context={}):
  38                 res = {}
  39                 for invoice in self.browse(cr,uid,ids):
  40                         if invoice.price_type == 'tax_included':
  41                                 res[invoice.id]= invoice.amount_total - invoice.amount_tax
  42                         else:
  43                                 res[invoice.id] = super(account_invoice, self)._amount_untaxed(cr, uid, [invoice.id], name, args, context)[invoice.id]
  44                 return res
  45
  46         def _amount_tax(self, cr, uid, ids, name, args, context={}):
  47                 res = {}
  48                 for invoice in self.browse(cr,uid,ids):
  49                         if invoice.price_type == 'tax_included':
  50                                 res[invoice.id] = reduce( lambda x, y: x+y.amount, invoice.tax_line,0)
  51                         else:
  52                                 res[invoice.id] = super(account_invoice, self)._amount_tax(cr, uid, [invoice.id], name, args, context)[invoice.id]
  53                 return res
  54
  55         def _amount_total(self, cr, uid, ids, name, args, context={}):
  56                 res = {}
  57                 for invoice in self.browse(cr,uid,ids):
  58                         if invoice.price_type == 'tax_included':
  59                                 res[invoice.id]= reduce( lambda x, y: x+y.price_subtotal_incl, invoice.invoice_line,0)
  60                         else:
  61                                 res[invoice.id] = super(account_invoice, self)._amount_total(cr, uid, [invoice.id], name, args, context)[invoice.id]
  62                 return res
  63
  64         _inherit = "account.invoice"
  65         _columns = {
  66                 'price_type': fields.selection([('tax_included','Tax included'),
  67                                                                                 ('tax_excluded','Tax excluded')],
  68                                                                                 'Price method', required=True, readonly=True,
  69                                                                                 states={'draft':[('readonly',False)]}),
  70                 'amount_untaxed': fields.function(_amount_untaxed, digits=(16,2), method=True,string='Untaxed Amount'),
  71                 'amount_tax': fields.function(_amount_tax, method=True, string='Tax'),
  72                 'amount_total': fields.function(_amount_total, method=True, string='Total'),
  73         }
  74         _defaults = {
  75                 'price_type': lambda *a: 'tax_excluded',
  76         }
  77 account_invoice()
  78
  79 class account_invoice_line(osv.osv):
  80         _inherit = "account.invoice.line"
  81         def _amount_line(self, cr, uid, ids, name, args, context={}):
  82                 """
  83                 Return the subtotal excluding taxes with respect to price_type.
  84                 """
  85                 res = {}
  86                 tax_obj = self.pool.get('account.tax')
  87                 res = super(account_invoice_line, self)._amount_line(cr, uid, ids, name, args, context)
  88                 res2 = res.copy()
  89                 for line in self.browse(cr, uid, ids):
  90                         if line.invoice_id.price_type == 'tax_included':
  91                                 if line.product_id:
  92                                         for tax in tax_obj.compute_inv(cr, uid,line.product_id.taxes_id, res[line.id], line.quantity):
  93                                                 res[line.id] = res[line.id] - tax['amount']
  94                                 else:
  95                                         for tax in tax_obj.compute_inv(cr, uid,line.invoice_line_tax_id, res[line.id], line.quantity):
  96                                                 res[line.id] = res[line.id] - tax['amount']
  97                         if name == 'price_subtotal_incl':
  98                                 if line.product_id and line.invoice_id.price_type == 'tax_included':
  99                                         prod_taxe_ids = [ t.id for t in line.product_id.taxes_id ]
 100                                         prod_taxe_ids.sort()
 101                                         line_taxe_ids = [ t.id for t in line.invoice_line_tax_id ]
 102                                         line_taxe_ids.sort()
 103                                 if line.product_id and line.invoice_id.price_type == 'tax_included' and prod_taxe_ids == line_taxe_ids:
 104                                         res[line.id] = res2[line.id]
 105                                 else:
 106                                         for tax in tax_obj.compute(cr, uid, line.invoice_line_tax_id, res[line.id], line.quantity):
 107                                                 res[line.id] = res[line.id] + tax['amount']
 108                         res[line.id]= round(res[line.id], 2)
 109                 return res
 110
 111         def _price_unit_default(self, cr, uid, context={}):
 112                 if 'check_total' in context:
 113                         t = context['check_total']
 114                         if context.get('price_type', False) == 'tax_included':
 115                                 for l in context.get('invoice_line', {}):
 116                                         if len(l) >= 3 and l[2]:
 117                                                 p = l[2].get('price_unit', 0) * (1-l[2].get('discount', 0)/100.0)
 118                                                 t = t - (p * l[2].get('quantity'))
 119                                 return t
 120                         return super(account_invoice_line, self)._price_unit_default(cr, uid, context)
 121                 return 0
 122
 123         _columns = {
 124                 'price_subtotal': fields.function(_amount_line, method=True, string='Subtotal w/o tax'),
 125                 'price_subtotal_incl': fields.function(_amount_line, method=True, string='Subtotal'),
 126         }
 127
 128         _defaults = {
 129                 'price_unit': _price_unit_default,
 130         }
 131
 132         #
 133         # Compute a tax amount for each kind of tax :
 134         #
 135         def move_line_get(self, cr, uid, invoice_id, context={}):
 136                 inv = self.pool.get('account.invoice').browse(cr, uid, invoice_id)
 137                 if inv.price_type=='tax_excluded':
 138                         return super(account_invoice_line,self).move_line_get(cr, uid, invoice_id)
 139
 140                 res = []
 141                 tax_grouped = {}
 142                 tax_obj = self.pool.get('account.tax')
 143                 cur_obj = self.pool.get('res.currency')
 144                 ait_obj = self.pool.get('account.invoice.tax')
 145                 cur = inv.currency_id
 146
 147                 for line in inv.invoice_line:
 148                         res.append( self.move_line_get_item(cr, uid, line, context))
 149                         for tax in tax_obj.compute(cr, uid, line.invoice_line_tax_id, (line.price_unit *(1.0-(line['discount'] or 0.0)/100.0)), line.quantity, inv.address_invoice_id.id, line.product_id, inv.partner_id):
 150                                 if inv.type in ('out_invoice', 'in_invoice'):
 151                                         res[-1]['tax_code_id'] = tax['base_code_id']
 152                                         res[-1]['tax_amount'] = tax['price_unit'] * line['quantity'] * tax['base_sign']
 153                                 else:
 154                                         res[-1]['ta_code_id'] = tax['ref_base_code_id']
 155                                         res[-1]['tax_amount'] = tax['price_unit'] * line['quantity'] * tax['ref_base_sign']
 156                 return res
 157
 158         def move_line_get_item(self, cr, uid, line, context={}):
 159                 return {
 160                                 'type':'src',
 161                                 'name':line.name,
 162                                 'price_unit':line.price_unit,
 163                                 'quantity':line.quantity,
 164                                 'price':line.price_subtotal,
 165                                 'account_id':line.account_id.id,
 166                                 'product_id': line.product_id.id,
 167                                 'uos_id':line.uos_id.id,
 168                                 'account_analytic_id':line.account_analytic_id.id,
 169                         }
 170
 171         def product_id_change_unit_price_inv(self, cr, uid, tax_id, price_unit, qty, address_invoice_id, product, partner_id, context={}):
 172                 if context.get('price_type', False) == 'tax_included':
 173                         return {'price_unit': price_unit,'invoice_line_tax_id': tax_id}
 174                 else:
 175                         return super(account_invoice_line, self).product_id_change_unit_price_inv(cr, uid, tax_id, price_unit, qty, address_invoice_id, product, partner_id, context=context)
 176
 177         def product_id_change(self, cr, uid, ids, product, uom, qty=0, name='', type='out_invoice', partner_id=False, price_unit=False, address_invoice_id=False, price_type='tax_excluded', context={}):
 178                 context.update({'price_type': price_type})
 179                 return super(account_invoice_line, self).product_id_change(cr, uid, ids, product, uom, qty, name, type, partner_id, price_unit, address_invoice_id, context=context)
 180 account_invoice_line()