How to save nested objects in ember.js?

@lottie 

To save nested objects in Ember.js, you can follow these steps:

1. Define your models: Make sure you have defined the models for each nested object in your Ember application. For example, if you have a Post model that has a nested Comment model, make sure both models are defined in your Ember app.
2. Define relationships: Use Ember Data's belongsTo and hasMany relationship options to define the relationships between your nested objects. For example, in your Post model, you may have a hasMany relationship with the Comment model.
3. Create and save records: When creating a new record that includes nested objects, you can use Ember Data's createRecord method to create the record and its nested objects. For example, you can create a new Post record and add new Comment records to it.
4. Save the record: Once you have created the record with its nested objects, you can use the save method to save the record and its nested objects to your backend server.

Here is an example code snippet that demonstrates how to save nested objects in Ember.js:

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// Define the models
App.Post = DS.Model.extend({
  title: DS.attr('string'),
  comments: DS.hasMany('comment')
});

App.Comment = DS.Model.extend({
  content: DS.attr('string'),
  post: DS.belongsTo('post')
});

// Create and save a new post with comments
var post = this.store.createRecord('post', {
  title: 'New Post',
  comments: [
    this.store.createRecord('comment', { content: 'Comment 1' }),
    this.store.createRecord('comment', { content: 'Comment 2' })
  ]
});

post.save().then(function(savedPost) {
  console.log('Post saved with comments:', savedPost.get('comments'));
});

By following these steps, you can save nested objects in Ember.js and ensure that the relationships between your models are properly defined and maintained.