如何在骨干.js中处理嵌套集合

Question

I have a collection of models. Some of these models might contain a nested collection of the same models. In my JSON this is set up as an array. The issue I was getting was that it was remaining as an array and not getting parsed into the collection of models I wanted it to be. This was a problem because I was navigating through the data recursively and I wanted to be able to treat each model as a Backbone model and not just a plain old object. I am calling collection of model , within same model . Initialize function:-

function(response) {

       if (response.filters) {
             this.set('filters', new FilterCollection(response.filters));
       }
  }

Answer 1

If I read your question correctly, you are trying to convert the array to a proper collection in initialize . That's not the ideal place. Assuming you load your data from the server with fetch , the conversion needs to happen in parse instead.

The parse method is also the right choice if you pass the attributes to the constructor while creating the model. The attributes will be processed with parse by setting the option {parse: true} . You don't need additional code in initialize for that. The example in the Backbone documentation illustrates the very thing you are trying to do.