Question

我在一对多关系中创建记录时遇到问题。我使用Ember 1.7和Ember Data 1.0.0-beta.10。

app/models/transaction.js

import DS from 'ember-data';

var Transaction = DS.Model.extend({
  code: DS.attr('string'),
  created_at: DS.attr('date', {
    defaultValue: function() { return new Date(); }
  }),
  customer: DS.belongsTo('customer', { embedded: 'always', async: true }),
  details: DS.hasMany('transactiondetail', { embedded: 'always', async: true }),
  is_cash_payment: DS.attr('boolean')
});

export default Transaction;

app/models/transactiondetail.js

import DS from 'ember-data';

var TransactionDetail = DS.Model.extend({
  item: DS.belongsTo('item', { embedded: 'always', async: true }),
  max_returned_at: DS.attr('date'),
  returned_at: DS.attr('date'),
  price: DS.attr('number')
});

export default TransactionDetail;

app/serializers/transaction.js

import DS from 'ember-data';

export default DS.RESTSerializer.extend(DS.EmbeddedRecordsMixin, {
  attrs: {
    customer: { serialize: 'records', deserialize: 'id' },
    details: { serialize: 'records', deserialize: 'ids' }
  }
});

app/serializers/transactiondetail.js

import DS from 'ember-data';

export default DS.RESTSerializer.extend(DS.EmbeddedRecordsMixin, {
  attrs: {
     item: { serialize: 'records', deserialize: 'id' },
  }
});

app/controllers/transaction/create.js

import Ember from 'ember';

export default Ember.ObjectController.extend(, {
  needs: ['transactions'],

  transactionCode: '',
  dateNow: new Date(),
  maxReturnedAt: maxReturnedAt,
  selectedItem: [],
  selectedCustomer: null,
  totalPrice: totalPrice,
  payValue: 0,
  change: 0,
  isCashPayment: true,

  actions: {
    create: function() {
      var self = this;

      var record = this.store.createRecord('transaction', {
          code: this.get('transactionCode'),
          customer: this.get('selectedCustomer'),
          is_cash_payment: this.get('isCashPayment')
      });

      this.get('selectedItem').forEach(function( item ) {
        var transactionDetail = self.store.createRecord('transactiondetail', {
          item: item,
          max_returned_at: self.get('maxReturnedAt'),
          price: item.get('price')
        });

        record.get('details').then(function(selectedRecord) {
          selectedRecord.pushObject( transactionDetail );
        });
      });

      record.save().then( function() {
          self.get('controllers.transactions.model').pushObject({});
          self.clearForm();
          self.transitionToRoute('transactions');
      });
    },

    goBack: function() {
      this.transitionToRoute('transactions');
    },
  }
});

如果我创建了记录，我就会收到这样的错误。

错误：断言失败：应在修改DS.PromiseArray之前设置其内容属性在新错误（本机）在Error.EmberError（http://machine.dev:4200/assets/vendor.js:26712:23） at Object.Ember.assert（http://machine.dev:4200/assets/vendor.js:16896:15）在EmberObject.extend._replace（http://machine.dev:4200/assets/vendor.js:45514:15）在EmberObject.extend._insertAt（http://machine.dev:4200/assets/vendor.js:45529:14）在EmberObject.extend.pushObject（http://machine.dev:4200/assets/vendor.js:45573:14）在申请时（http://machine.dev:4200/assets/vendor.js:31554:27）在superWrapper [作为pushObject]（http://machine.dev:4200/assets/vendor.js:31132:15）在eval（pw-store / controllers / transactions / create.js：74：35） at Array.forEach（native）vendor.js：27637logToConsole vendor.js：27637RSVP.onerrorDefault vendor.js：41089__exports __。default.trigger vendor.js：59652Promise._onerror vendor.js：60651publishRejection vendor.js：58914（匿名函数）供应商.js：42243DeferredActionQueues.invoke vendor.js：13808DeferredActionQueues.flush vendor.js：13858Backburner.end vendor.js：13321Backburner.run vendor.js：13376apply vendor.js：31557run vendor.js：30173__exports __。default.EmberObject.extend._bubbleEvent vendor.js：50350（匿名函数）vendor.js：50298jQuery.event.dispatch vendor.js：4759jQuery.event.add.elemData.handle vendor.js：4427 未捕获错误：断言失败：错误：断言失败：应在修改之前设置DS.PromiseArray的content属性

更新

我已按照Kingpin2k的建议将我的Ember数据更新为1.0.0-beta.11，但我收到了未定义的错误（请参阅下面的评论）。我想我在模型和/或序列化器上有误，但我不知道如何解决它。有什么帮助吗？

保存一对多关系模型时出现Ember.js错误

0 个答案: