How could I get the current page number when paginating?

[rodolfojcj]

Hi, thanks for contributing this useful Ember adapter!

I'm playing with integrating a project of mine based on DRF 3.3.3 and Ember.js with Ember Data 2.6.0 and ember-django-adapter 1.1.2.

Right now in an HBS template file that lists the instances of some given model I have something like this:

  {{#if model.meta.previous}}
    {{#link-to 'cars' (query-params page=model.meta.previous)}}Go Previous{{/link-to}}
  {{/if}}
  {{#if model.meta.next}}
    {{#link-to 'cars' (query-params page=model.meta.next)}}Go Next{{/link-to}}
  {{/if}}

However, I would like to know how to do something like this in the same HBS template file:

Your current page is: {{model.meta.WHAT_COULD_I_USE_HERE?}}

Thanks in advance for your time and attention.

[rodolfojcj]

By the way, I have another question.

Besides having a variable with the value of the current page number when paginating, do you foresee another way to get a link to each individual page available in the full pagination set? I mean, something like the example showed at Displaying links to individual page numbers.

Note: for the backend side provided by DRF 3.3.3 I'm using the PageNumberPagination class.

Again, thanks a lot!

[rmharrison]

Following Django Paginator, Page.number --> meta.number would be a sensible serialisation.

Unfortunately, the default django adapter doesn't support number (only next, previous).

The easiest work-around would be to manually include number in meta from within Ember. Can either grab from the query param, or compute from next/previous. Close example is in the docs.

Something like...

export default DRFSerializer.extend({
  extractMeta: function(store, type, payload) {
    let meta = this._super(store, type, payload);
    if (!Ember.isNone(meta)) {
        if ( (meta.next-1) == meta.previous +1 )
            meta['number'] = meta.next-1;
    }
    return meta;
  }
});

Has this workaround been sufficient for folks?

What's the feeling about including number as a computed property?

• https://github.com/dustinfarris/ember-django-adapter/blob/7231937ad5e34ed44e6cb29aa3bf5827aff08b2e/addon/serializers/drf.js
• https://github.com/dustinfarris/ember-django-adapter/blob/7231937ad5e34ed44e6cb29aa3bf5827aff08b2e/tests/acceptance/pagination-test.js

[benkonrath]

It makes sense to me that we include the current page number as a computed property. I'm a bit out of the loop on this project these days so I'll defer the final decision to @dustinfarris. If he agrees, then you're welcome to make a PR to add the feature.

[dustinfarris]

I like it! PR would be welcome!