odoo明细表汇总数据

一。在主表中
#改动地方 总结算金额 求和:
def _get_subtotal2(self, cr, uid, ids, field_name, arg,  context=None):
    # 初始化
    res = {}
    # 获取本页面单据
    for order in self.browse(cr, uid, ids, context=context):
        subtotal2=0
        # 循环遍历明细表中的数据，汇总
        for line in order.line_id:
            # 明细表中数据，以次相加
            subtotal2 += line.pay_account_line
        res[order.id] = subtotal2
    return res

二。与明细表中关联字段

'line_id':fields.one2many('settle.account.line','contract_origin_line','Order Line',  copy=True),

'total_pay':fields.function(_get_subtotal2,string=u'总支付金额',type='float',store=True,),

自动更新数据：

# 自动更新合同页面上的累计结算和累计支付  第二种方法
 sigining_obj=self.pool.get('sigining.contract')
 sigining_obj=sigining_obj.search(cr,uid,[str('contract_origin'),'=','name'],context)
 sigining_obj.create(cr,uid,{'accumulated_amount':dict1['jiestotal'],'accumulated_pay':dict1['paytotal']},context=None)
 sigining_obj.accumulated_amount= dict1['jiestotal']
 sigining_obj.accumulated_pay= dict1['paytotal']