删除方法odoo

##判断删除情况，不允许删除
def unlink(self,cr,uid,ids,context=None):
     raise osv.except_osv(u'警告!',u'单据不允许删除');
def write(self,cr,uid,ids,context=None):
     raise osv.except_osv(u'警告!',u'单据不允许修改');

 # 重写删除方法
def unlink(self,cr,uid,ids,context=None):
    # 首先获取这张单子的状态，read
    sale_origins=self.read(cr,uid,ids,['state'],context=context)
    unlink_ids=[]
    for s  in sale_origins:
    # 如果这张单子状态为草稿和取消d 单子是可以删除的确定的单子是 不可以删除的
        if s['state'] in ['draft','cancel']:
            # 将要删除的单子的id放入放到删除容器里面取
            unlink_ids.append(s['id'])
        else:
            # 如果是确定的单子就可以弹出一个不可以删除对话提示框
            raise  osv.except_osv((u'警告'),(u'以缺然订单不可以删除'))
     # 返回这个结果的值到前台   
    return osv.osv.unlink(self,cr,uid,unlink_ids,context=context)

# 重写删除方法，删除合同单，连结算单一起删除，可用sql语句，ids表示这个单子的id
def unlink(self, cr, uid, ids, context=None):

    # sigining_contract查出状态信息
    sigining_contract = self.read(cr, uid, ids, ['state'], context=context)
    sigining_contract_obj=self.browse(cr,uid,ids,context)
    name=sigining_contract_obj.contract_origin
    # 根据合同号删除结算单号
    sql="DELETE from settle_account where contract_origin='%s'"%(str(name))
    cr.execute(sql)
    unlink_ids = []
    for s in sigining_contract:
         if s['state'] in ['draft','cancel']:
            unlink_ids.append(s['id'])
         else:
            raise osv.except_osv((u'警告!'), (u'已确认订单不可删除'))

    return osv.osv.unlink(self, cr, uid, unlink_ids, context=context)

创建方法：

 # 新加的地方
def create(self, cr, uid, vals, context=None):
    context = context or {}

    partner_id = vals.get('display_name')
    ht_type = vals.get('contract_type')

    # 根据公司来生成不同的编号,不同类别从1开始
    if partner_id and ht_type:
            vals['contract_origin'] = self.get_ht_sequence(cr,uid,partner_id,ht_type)

    else:
            raise osv.except_osv(u'请先选择公司或类别!')

    new_id=super(sigining_contract, self).create(cr, uid, vals, context)
    return new_id

保存后是编辑是write方法：
def write(self, cr, uid, ids, vals, context=None):
    ddate=vals.get('date_planned')
    if ddate:
        obj=self.pool('sale.order.line')
        sale_order_line_id=obj.search(cr,uid,[('sale_origin_line_id','=',ids[0])])
        obj.write(cr,uid,sale_order_line_id,{'finish_date':ddate})
    return super(sale_origin_line, self).write(cr, uid,ids, vals, context=context)

函数 求几个数的和#改动地方 小计增加金额 求和:
def _get_sumzaccount(self, cr, uid, ids, field_name, arg,  context=None):

    res={}
    for order in self.browse(cr, uid, ids, context=context):
        Q=0.0
        qq=order.zadd_money
        qq1=order.zadd_money2
        qq2=order.zadd_money3
        qq3=order.zadd_money4
        Q=qq+qq1+qq2+qq3

        res[order.id]=Q

    return res

###整张外部订单取消,对应取消未发货的内部销售订单
# def action_cancel_sale_order(self,cr,uid,ids,context=None):
#     assert len(ids)==1
#     sale_origin_obj=self.browse(cr,uid,ids,context)
#     sale_origin_obj.state='cancel'
#     #单据明细也需要取消
#     for line in sale_origin_obj.line_id:
#         line.state='cancel'
#     #查询出销售订单的源单据是本外部订单的所有单据
#     origin_obj=self.pool.get('sale.order')
#     sale_orders=origin_obj.search(cr,uid,[('sale_origin_id','=',ids[0])])
#     #####取消
#     origin_obj.action_cancel(cr, uid, sale_orders)
#     self.message_post(cr, uid, ids, body=u"已取消订单", context=context)
#     return True