本文介绍了观察Ember数据存储在组件中的更改的处理方法,对大家解决问题具有一定的参考价值,需要的朋友们下面随着小编来一起学习吧!

问题描述

 导出默认值Ember.Component.extend({ 

存储:Ember.inject.service(),

addRecord(account){
this.get('store')。createRecord('update' {
authUid:account.get('authUid'),
service:account.get('platform')
});
}
});

我有另一个组件需要观察对特定模型所做的更改(例如,添加记录或删除),并显示在该组件中。

 导出默认值Ember.Component.extend({
store:Ember .inject.service(),

observeStoreChanges:/ *我应该写什么,以便每次`addRecord`
推送存储中的记录时,在这个组件中执行一个函数* /

});


解决方案

如果您是观察者模式的粉丝:

  // store.js 
导出默认DS.Store.extend(Ember.Evented,{
createRecord(){
const record = this._super.apply(this,arguments);
this.trigger('recordCreated',record);
return record;
}
});

// component.js
导出默认值Ember.Component.extend({
observesStoreChanges:function(record){

} .on(' store.recordCreated')
});


I have a component which creates record for a specific model like this:

export default Ember.Component.extend({

    store: Ember.inject.service(),

    addRecord(account) {
      this.get('store').createRecord('update', {
        authUid: account.get('authUid'),
        service: account.get('platform')
      });
    }
});

I have another component that needs to observe changes done to a particular model (i.e. if records are added or deleted), and show them in that component.

export default Ember.Component.extend({
    store: Ember.inject.service(),

    observeStoreChanges: /*What should I write so that every time `addRecord`
pushes record in the store, a function is executed in this component*/

});
解决方案

If you're a fan of the observer pattern:

// store.js
export default DS.Store.extend(Ember.Evented, {
    createRecord() {
        const record = this._super.apply(this, arguments);
        this.trigger('recordCreated', record);
        return record;
    }
});

// component.js
export default Ember.Component.extend({
    observesStoreChanges: function(record) {

    }.on('store.recordCreated')
});

这篇关于观察Ember数据存储在组件中的更改的文章就介绍到这了,希望我们推荐的答案对大家有所帮助,也希望大家多多支持!

10-23 04:58