onchange方法中的属性错误

Question

我有一个具有onchange方法的类，它从另一个模型中检索活动名称。当我运行它时，我得到一个这样的错误。在

AttributeError:'在浏览记录中找不到字段活动名称(年度预算活动，16）'

有人能告诉我为什么会这样吗？我该怎么解决它？在

我的类使用onchange方法

class wpb(osv.osv):
_name = "wpb.wpb"
_description = "Work Program and Budget"
_columns = {
    'activity_id' : fields.many2one("budget.activity_summary", "ID", type="char", size=64, ondelete="no action"),
    'activity_name' : fields.char("Activity Name", type="char", size=64, ondelete="no action" ),
    'region_id' : fields.related("activity_code", "region_id", type="char", string="Management Unit"),
    'service_lvl' : fields.float("Service Level", digits=(4,2)),
    'annual_work' : fields.float("Annual Work", digits=(4,2)),
       }

def onchange_activity_code(self, cr, uid, ids, activity_id, context = None):
    if activity_id:
         names = self.pool.get('budget.activity_year').browse(cr, uid, activity_id, context=context)
    return {'value': {'activity_name': names.activity_name }}
    return {'value':{}}

xml视图

^{pr2}$

类正在尝试获取活动名称字段

class activity_year(osv.osv):
_name = "budget.activity_year"
_description = "Activity year"
_rec_name = "activity_yearcode"
_columns = {
    'activity_yearcode' : fields.char("Activity Code", size=64, required=True),
    'activity_name' : fields.char("Activity Name", size=128),
    'act_status' : fields.selection([
                ('1', 'All'),
                ('2', 'Active'),
                ('3', 'Inactive'),
                ], 'Status'),
    }
_sql_constraints = [
    ('activity_yearcode_unique', 'UNIQUE(activity_yearcode)', 'Each activity code is unique.'),
]

Answer 1

名称的类型是记录列表，因此要浏览记录列表，必须定义元素。 在您的情况下，您可以键入：name[0].activity\u name>；作为名称的第一条记录的活动名称。 原谅我英语不好

Answer 2

您的activity_id与budget.activity_summary有关系，您可以从budget.activity_year获得值。我认为这可能与budget.activity_year有关。改变这种关系，尝试下面的“改变方法”。在

试试这个on_change

def onchange_activity_code(self, cr, uid, ids, activity_id, context = None):
    res = {}
    names = self.pool.get('budget.activity_summary').browse(cr, uid, activity_id, context=context)
    if names:
        res['activity_name'] = names.activity_name
    return {'value': res}

请参阅其他on_change格式，这样您就可以更清楚地了解它了。在

On Change Method Tips

希望这对你有帮助。在

Answer 3

更新您的onchange方法

def onchange_activity_code(self, cr, uid, ids, activity_id, context = None):
    if activity_id:
         names = self.pool.get('budget.activity_year').browse(cr, uid, [activity_id], context=context)
         return {'value': {'activity_name': names.activity_name }}

.py文件

^{pr2}$

activity_name字段设置值来自年度预算活动对象。在