[FIX] Update average price creates incorrect entries

bzr revid: ado@tinyerp.com-20120110113215-oundknzgga63wag4

diff --cc addons/account_anglo_saxon/product.py
index ebb9bde,aa39710..aac6ec3
--- 1/addons/account_anglo_saxon/product.py
--- 2/addons/account_anglo_saxon/product.py
+++ b/addons/account_anglo_saxon/product.py
@@@ -86,6 -87,106 +87,31 @@@ class product_template(osv.osv)
      }
  product_template()
  
+ class product_product(osv.osv):
+     _inherit = "product.product"
+     
+     def do_change_standard_price(self, cr, uid, ids, datas, context=None):
+         """ 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')
 -        if context is None:
 -            context = {}
 -
 -        new_price = datas.get('new_price', 0.0)
 -        journal_id = datas.get('stock_journal', False)
+         product_obj=self.browse(cr, uid, ids, context=context)[0]
 -        account_variation = product_obj.categ_id.property_stock_variation
 -        account_variation_id = account_variation and account_variation.id or False
+         stock_price_diff_account = datas.get('stock_price_diff_account',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))
+         if not stock_price_diff_account:
+             stock_price_diff_account = product_obj.categ_id.property_account_creditor_price_difference_categ and product_obj.categ_id.property_account_creditor_price_difference_categ.id or False
+         if not stock_price_diff_account:
+             raise osv.except_osv(_('Error!'),_('There is no price diffrent account defined ' \
+                                                'for this product: "%s" (id: %d)') % (product_obj.name, product_obj.id,))
 -        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, context=context):
 -                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:
 -                        amount_diff = qty * diff
 -                        move_line_obj.create(cr, uid, {
 -                                    'name': product.name,
 -                                    'account_id': stock_price_diff_account,
 -                                    '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:
 -                        amount_diff = qty * -diff
 -                        move_line_obj.create(cr, uid, {
 -                                        'name': product.name,
 -                                        'account_id': stock_price_diff_account,
 -                                        '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
++        datas['stock_input_account'] = stock_price_diff_account
++        datas['stock_output_account'] = stock_price_diff_account
++            
++        return super(product_product, self).do_change_standard_price(cr, uid, ids, datas, context)
+     
+ product_product()
+ 
  
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