使用RESTAdapter的后端验证始终"适配器拒绝提交,因为它无效"

Question

组态

• 后端= Laravel 5.1,带有Dingo API
• 前端= Ember 1.13.6,Ember数据1.13.7
• Adapter = Ember Data RESTAdapter

问题

我正试图在我的第一个Ember应用程序上处理后端验证错误.从服务器返回错误时,我收到此错误:

Error: The adapter rejected the commit because it was invalid
at new Error (native)
at Error.EmberError (http://localhost:4200/assets/vendor.js:26266:21)
at Error.ember$data$lib$adapters$errors$$AdapterError (http://localhost:4200/assets/vendor.js:69564:50)
at Error.ember$data$lib$adapters$errors$$InvalidError (http://localhost:4200/assets/vendor.js:69637:52)
at ajaxError (http://localhost:4200/assets/frontend.js:16:24)
at ember$data$lib$system$adapter$$default.extend.ajax.Ember.RSVP.Promise.hash.error (http://localhost:4200/assets/vendor.js:71327:31)
at jQuery.Callbacks.fire (http://localhost:4200/assets/vendor.js:3350:30)
at Object.jQuery.Callbacks.self.fireWith [as rejectWith] (http://localhost:4200/assets/vendor.js:3462:7)
at done (http://localhost:4200/assets/vendor.js:9518:14)
at XMLHttpRequest.jQuery.ajaxTransport.options.send.callback (http://localhost:4200/assets/vendor.js:9920:8)

来自后端的响应有一个422 Unprocessable Entity标头,内容为:

{
     "message":"Couldn't save client",
     "errors":{
          "name":["The name field is required."],
          "email":["The email field is required."]
      },
     "status_code":422
}

尝试(和失败)的解决方案

• Ember数据休息适配器错误处理不起作用
  扩展RESTAdapter以覆盖ajaxError函数,我的当前如下所示:

  ajaxError: function(jqXHR) {
  var error = this._super(jqXHR);
  if (jqXHR && jqXHR.status === 422) {
      var jsonErrors = Ember.$.parseJSON(jqXHR.responseText).errors;
      return new DS.InvalidError(jsonErrors);
  } else {
      return error;
  }
  }
  

• 将一个catch语句添加到save方法中,我的保存操作当前是:

   save() {
      var self = this;
  
      function transitionToPost(post) {
          self.transitionToRoute('clients.show', post);
      }
  
      function failure(reason) {
          // handle the error
          console.log(reason);
          return false;
      }
  
      this.get('model').save().then(transitionToPost, failure).catch(failure);
  }
  

• 测试出ActiveModelAdapter - 不确定我期望用这个实现什么,但我绝望了; 结果仍然相同.

• Ember Docs(http://guides.emberjs.com/v1.13.0/models/creating-updating-and-deleting-records/#toc_promises)
  正如您在上面的控制器代码中看到的,我实际上以此为基础

请你看看并提出建议吗？在此先感谢您的帮助!

Answer 1

我的app/adapters/application.js：

export default DS.RESTAdapter.extend({
  ajaxError(jqXHR) {
    var error, errors, jsonErrors, response;
    error = this._super(jqXHR);

    if (jqXHR && jqXHR.status === 422) {
      response = Ember.$.parseJSON(jqXHR.responseText);
      errors = {};
      if (response.errors != null) {
        jsonErrors = response.errors;
        Ember.keys(jsonErrors).forEach(function(key) {
          return errors[Ember.String.camelize(key)] = jsonErrors[key];
        });
      }
      return new DS.InvalidError(errors);
    } else {
      return error;
    }
  }
});

结合ServerErrorsMixin模型的定制：

export default Ember.Mixin.create({
  isntValid: Ember.computed.not('isValid').readOnly(),

  adapterDidInvalidate(errors) {
    let recordErrors = this.get('errors'),
        hasProp = {}.hasOwnProperty;

    for (let key in errors) {
      if (!hasProp.call(errors, key)) {
        continue;
      }

      let propertyErrors = errors[key];

      if(key === 'duplicate') {
        if(!Ember.isArray(propertyErrors)) {
          recordErrors
          .get('messages')
          .pushObject(propertyErrors);
        } else {
          Ember.debug('It shouldnt be an array.');
        }
      } else {
        for (let e of propertyErrors) {
          recordErrors
          .get(key)
          .pushObject(e);
        }
      }
    }

    this._saveWasRejected();
  }
});

在 Ember Data 中工作正常1.0.0-beta.18。ServerErrorsMixin如果您尝试这样做，请记住从模型中扩展：

import ServerErrorsMixin from '../mixins/server-errors';

export default DS.Model.extend(ServerErrorsMixin, {
  // ...
})