问题描述
我有一个字段,我在模型中声明为字符串,如下所示:
I have one field which i have declared as string in the model as show below:
App.Student= DS.Model.extend({
name: DS.attr('string'),
address1: DS.attr('string'),
address2: DS.attr('string'),
city: DS.attr('string'),
state: DS.attr('string'),
postal: DS.attr('string'),
country: DS.attr('string'),
});
在编辑模式下,当我将 Adderess 2 字段更新为 null 然后出现以下错误:
Here in the Edit mode when i update Adderess 2 field as null then below error comes:
编辑属性失败:一个或多个参数值无效:AttributeValue 不能包含空字符串"
我知道会生成此错误,因为我将地址 2 字段更新为空,并且我想要 地址 2 字段不是强制性的(可以传递数据或也可以将该列留空")
I know this Error is generated because i am updating address 2 field as null and that what i want Address 2 field is not mandatory(One can pass data or can also left that column as blank")
推荐答案
最后我做对了,方法可能有些不同,但对我有用!!!
Finally i got this right, The way might be some what different but it work for me !!!
这是相同的代码.
AttributeUpdates: {
Address2:
{
Action: "DELETE"
},
}
然后我在条件上添加值.
And then i am adding the value on the condition.
if (propertyObj.address2) {
params.AttributeUpdates.address2 = {
Value: {
S: propertyObj.address2
},
Action: "PUT"
}
}
衷心感谢所有帮助过我的人,干杯!!!
Thank you to all from bottom of my heart :)who tried to help me, Cheers !!!
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