Ember 数据模型的错误属性 (DS.Errors) 未填充 [英] Ember Data model's errors property (DS.Errors) not populating
问题描述
我正在使用 Ember Data，但似乎无法使用来自 REST API 的错误消息填充模型的错误"属性.我几乎遵循本指南中的示例:
I'm using Ember Data and I can't seem to get the model's 'errors' property to populate with the error messages from my REST API. I'm pretty much following the example at this guide:
http://emberjs.com/api/data/classes/DS.Errors.html
我的应用程序如下所示:
My app looks like this:
window.App = Ember.Application.create();
App.User = DS.Model.extend({
username: DS.attr('string'),
email: DS.attr('string')
});
App.ApplicationRoute = Ember.Route.extend({
model: function () {
return this.store.createRecord('user', {
username: 'mike',
email: 'invalidEmail'
});
},
actions: {
save: function () {
this.modelFor(this.routeName).save();
}
}
});
我的 API 返回这个:
And my API returns this:
HTTP/1.1 400 Bad Request
Content-Type: application/json; charset=utf-8
Content-Length: 125
{
"errors": {
"username": ["Username is taken!"],
"email": ["Email is invalid."]
}
}
在模型上调用 save() 后，这是我在用户模型上看到的:
After I call save() on the model, here is what I see on the user model:
user.get('isError') // true
user.get('errors.messages') // []
即使模型正确注册了 isError 属性，我似乎也无法填充错误消息.我怎样才能让它工作?我正在开发 Ember Data 1.0.0-beta.8.2a68c63a 的最新测试版
Even though the model is registering the isError property correctly, I can't seem to get the error messages to populate. How can I get this to work? I'm working on the latest beta build of Ember Data version 1.0.0-beta.8.2a68c63a
推荐答案
这方面的文档肯定是缺乏的，除非您使用活动模型适配器，否则不会填充错误.
The docs are definitely lacking in this area, the errors aren't populated unless you're using the active model adapter.
这是它工作的一个例子，也请查看 Ember:error.messages 在保存时不显示服务器错误，我说同样的话
Here's an example of it working, also check out Ember: error.messages does not show server errors on save where I say the same thing
http://jsbin.com/motuvaye/24/edit
您可以通过覆盖 ajaxError 并复制活动模型适配器如何在 RESTAdapter 上轻松实现它.
You can fairly easily implement it on the RESTAdapter by overriding ajaxError and copying how the active model adapter does it.
App.ApplicationAdapter = DS.RESTAdapter.extend({
ajaxError: function(jqXHR) {
var error = this._super(jqXHR);
if (jqXHR && jqXHR.status === 422) {
var response = Ember.$.parseJSON(jqXHR.responseText),
errors = {};
if (response.errors !== undefined) {
var jsonErrors = response.errors;
Ember.EnumerableUtils.forEach(Ember.keys(jsonErrors), function(key) {
errors[Ember.String.camelize(key)] = jsonErrors[key];
});
}
return new DS.InvalidError(errors);
} else {
return error;
}
}
});
http://jsbin.com/motuvaye/27/edit
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