如何处理已创建但未使用的额外记录？ [英] how do you deal with extra records that was created, but not used?

问题描述

当用户进入路由时，这是在模型钩子中createRecord的常见模式。

it's a common pattern to createRecord in the model hook when user enters the route.

有时，这些记录仍然未使用，并且在某些情况下弹出，即在peekAll查询中，尽管这是不需要的。如何处理他们？

Sometimes those records remain unused, and they pops up in certain conditions, i.e. in peekAll query, although that is unwanted. How do deal with them?

推荐答案

如果创建是路由的主要责任，您可以在停用路线事件，例如：

If creation is the main responsibility for the route, you could destroy model on deactivate route event, for example:

//route
model: function() {
    return this.store.createRecord('modelName');
},

cleanModel: function() {
    var model = this.modelFor( this.routeName );
    if (model.get('isNew')) {
        model.destroyRecord();
    }
}.on('deactivate')

停用事件。当路由型号发生变化时，不会执行。

Deactivate event is triggered when the router completely exits this route. It is not executed when the model for the route changes.

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