Question

I have an Ember method which fires when when new data arrives:

insertDays: function() {
  ...
}.observes('startDate', 'doctor.appointments.length')

I want to check to make sure the data is actually there before I execute any heavy code. To do this I currently use:

var length = doctor.get('appointments.length')
if (length !== 0) {
    ...
}

However, there are occasionally times where there is legitimately no data being handed down from the server, and in this case my !== 0 test fails, and the code doesn’t execute when I want it to.

I’ve tried using the .isLoaded method but it always returns true regardless.

How do I effectively tell if an Ember resource is still loading?

Answer 1

I got this working by using .isLoaded as an .observes property.

The code is now structured as follows and works as expected:

insertDays: function() {
  ...
}.observes('startDate', 'doctor.appointments.isLoaded')

Elsewhere in the program I was able to use the following code to ascertain whether the data had loaded:

var isLoaded = appointments.get('isLoaded');

Thanks to @Unspecified for steering me in the right direction. Cheers!