ember data 2.3.x how to get the metadata with jsonapi

Question

DEBUG: -------------------------------
DEBUG: Ember : 2.3.0
DEBUG: Ember Data : 2.3.1
DEBUG: jQuery : 2.1.4
DEBUG: Ember Simple Auth : 1.0.0
DEBUG: -------------------------------

My server side send the data with jsonapi like this:

  data: [{  
   ... ,  
   1: {  
     attributes: {  
       id: '123',  
       ... ,   
       meta: {  
         price_total: {  
           datasets: ... ,  
           labels: ...  
         }  
       }  
     }  
   },  
   ...  
 }]

I check the document https://guides.emberjs.com/v2.3.0/models/handling-metadata/ , check to get the metadata in my template.

 {{#each model as |fittingItem index|}}  
   ...  
   {{fittingItem.meta}}  
   ...  
 {{/each}}

I could not get meta.

I found some issues https://github.com/emberjs/data/issues/2905 , https://github.com/emberjs/data/issues/3419 . They also can not solve my problem.

Maybe there is any better way to approach this problem?

Answer 1

Metadata (as it relates to JSONAPI) is currently only supported in Ember-Data for collections of data, and should be defined as a top level document key.

http://jsonapi.org/format/#document-top-level

It appears what you are trying to achieve is some level of meta data for each individual record, which is possible if you define a custom meta attribute on your model definition.

fooMeta: DS.attr()

Using an empty attr() allows ember-data to just let any value from json to "pass through" to your model without any transformation.. (though you could also define a custom transform to tweak your meta values a bit...)

also there is an addon ember-data-model-fragments which, may be of some help defining arbitrary "chunks" of data within your models.