Ember数据:find和findById有什么区别? [英] Ember data: what is difference between find and findById?

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问题描述

我不清楚以下两种查找方法之间的区别:

It is unclear to me what the difference is between the following 2 find methods:

model: function (params) {
    return App.Publication.findById(params.publication_id);  
  },

model: function (params) {
    return App.Publication.find(params.publication_id);
  },

在transition.retry中使用findbyId方法时遇到问题;在这种情况下,模型没有加载,导致错误时转换...另请参见 Ember:在转换之后路由ID丢失.retry() - 我做错了什么?

I experienced problems when using the findbyId method in a transition.retry; in that case, the model did not load causing errors when transitioning ... See also Ember: route ID is lost after a transition.retry() - Am I doing something wrong?

推荐答案

我认为您正在谈论 DS.Store ,因为 DS.Model 没有 findById 方法。

I think that you are talking about the DS.Store, because DS.Model doesn't have a findById method.

之间的差异,在商店中查找 findById 是findById,如名称所示:将通过ID找到数据。并找到一个多态的方法来查找您的参数记录:

The diference between, find and findById in store is that findById like the name says: will find the data by id. And find have a polymorphic way to find records based in your parameters:


  • 调用store.find(App.Publication,1 / * number of string * /),将打开一个store.findById

  • 使用store.find(App.Publication),将执行一个store.findAll

  • 和store.find(App.Publication,{name:'Tom'}),调用store.findQuery

DS.Model.find有一个别名store.find,所以要做一个findById,只需调用App.Publication.find(1 / *数字的字符串* /)

DS.Model.find have a alias to store.find, so to make a findById, just call App.Publication.find(1 /* number of string */)

这篇关于Ember数据:find和findById有什么区别?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IT屋!

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