如何修改原class里的方法
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按照Odoo的风格,理论上: 
 Class A中的方法可以由继承A的ClassB中被修改 ?
 问题如下:
 在stock.py中的:
 [quote]
 class stock_picking(models.Model):
 _name = "stock.picking"
 _inherit = ['mail.thread']
 _description = "Transfer"
 _order = "priority desc, date asc, id desc"
 def _set_min_date(.....
 [/quote]
 有
 [quote]
 def create_lots_for_picking(self, cr, uid, ids, context=None):
 lot_obj = self.pool['stock.production.lot']
 opslot_obj = self.pool['stock.pack.operation.lot']
 to_unlink = []
 for picking in self.browse(cr, uid, ids, context=context):
 for ops in picking.pack_operation_ids:
 for opslot in ops.pack_lot_ids:
 if not opslot.lot_id:
 print '=============not find stock.production.lot, create lot:',opslot.lot_name,ops.product_id.id,opslot.lot_weight
 lot_id = lot_obj.create(cr, uid, {'name': opslot.lot_name, 'product_id': ops.product_id.id}, context=context)
 
 opslot_obj.write(cr, uid, [opslot.id], {'lot_id':lot_id}, context=context)
 #Unlink pack operations where qty = 0
 to_unlink += [x.id for x in ops.pack_lot_ids if x.qty == 0.0]
 opslot_obj.unlink(cr, uid, to_unlink, context=context)
 [/quote]
 现在需要修改这个方法,新建模块后:
 [quote]
 class dy_stock_picking(models.Model):
 inherit = 'stock.picking'
 def create_lots_for_picking(self, cr, uid, ids, context=None):
 print 'dy.stock.picking==============='
 lot_obj = self.pool['stock.production.lot']
 opslot_obj = self.pool['stock.pack.operation.lot']
 to_unlink = []
 for picking in self.browse(cr, uid, ids, context=context):
 for ops in picking.pack_operation_ids:
 for opslot in ops.pack_lot_ids:
 if not opslot.lot_id:
 print 'dy.stock.picking=============not find stock.production.lot, create lot:',opslot.lot_name,ops.product_id.id
 lot_id = lot_obj.create(cr, uid, {'name': opslot.lot_name, 'product_id': ops.product_id.id, 'lot_weight': opslot.lot_weight}, context=context)
 opslot_obj.write(cr, uid, [opslot.id], {'lot_id':lot_id}, context=context)
 #Unlink pack operations where qty = 0
 to_unlink += [x.id for x in ops.pack_lot_ids if x.qty == 0.0]
 opslot_obj.unlink(cr, uid, to_unlink, context=context)
 [/quote]
 运行后发现,没有成功:
 [img [检测到链接无效,已移除] /img]
 还是调用了原来的方法
 什么原因?