ember.js - 在 Ember deleteRecord 中添加有效负载

Question

每当他尝试删除项目时，我都要求在有效负载中包含用户的评论。到目前为止，我有这个:

let remarks = this.get('remarks');
let id = this.get('itemID');

this.store.findRecord('item', id).then(function (selectedItem) {

    // TODO - DELETE doesn't accept payload in body?

    selectedItem.destroyRecord({remarks:remarks}).then(function(response){

        Ember.debug('delete successful:'+JSON.stringify(response));

        Ember.$('#confirmDelete').modal('hide');
        Ember.$('#remarks').val('');

        context.set('successful', true);
        context.set('message', context.get('i18n').t('success.role.delete'));                        

    }).catch(function(error){
        Ember.debug('delete failed:'+JSON.stringify(error));

        Ember.$('#confirmDelete').modal('hide');
        Ember.$('#remarks').val('');

        context.send('showErrors', error);
    });
});                 

它不起作用。在模型中设置备注值也是如此:

...
this.store.findRecord('item', id).then(function (selectedItem) {

    selectedItem.set('remarks', remarks);

    selectedItem.destroyRecord().then(function(response){
...

我试图覆盖 deleteRecord但我不知道从哪里开始或如何去做。

有人有想法吗？谢谢!

Answer 1

通过使用以下 mixin 扩展应用程序适配器，您可以轻松实现这种行为:

/* app/mixins/delete-with-playload.js */

import Ember from 'ember';

export default Ember.Mixin.create({
  deleteRecord(store, type, snapshot) {
    var id = snapshot.id;
    var data = {};
    var serializer = store.serializerFor(type.modelName);

    serializer.serializeIntoHash(data, type, snapshot);

    return this.ajax(this.buildURL(type.modelName, id, snapshot, 'deleteRecord'), "DELETE", {
      data
    });
  }
});

然后只需将其添加到您的应用程序适配器

/* app/adapters/application.js */

import RestAdapter from 'ember-data/adapters/rest';
import DeleteWithPayloadMixin from '../mixins/delete-with-payload';
export default RestAdapter.extend(DeleteWithPayloadMixin);

这将产生与 PUT 的有效载荷相同的有效载荷。方法，表示以下形式的有效负载:

{
  "<model-name>": {
    // model's serialized attributes
  }
}

现在您要做的就是在删除之前在记录上设置所需的属性，然后销毁记录。

model.setProperties({
  deleteReason: 'whatever'
});
model.destroyRecord();
/* 
results a DELETE request when requestBody is "{
  "<model-name>": { 
    ... 
    "deleteReason": "whatever"
    ...
  }
}"
*/