External filter problem

[userquin]

I have a complex filter that cannot be integrated in headers. Instead the mediator switch the table to another component containing the filter (in the same page via iron-pages or neon-animated-pages), but when this custom/complex filter results in no results (after applying dynamic server request), the [no-result] is never shown.

The problem is that table is taking into account filterCount when there is no any filter:

        _computeNoResults: function(itemsCount, filterCount) {
          return filterCount && itemsCount === 0;
        },

The solution would be to check if there is some filter configured in the table not just check the key/value pairs in filter property. Maybe just include a boolean property to inform table the filter is external...

[web-padawan]

Actually this can be reached by re-implementing external dataSource, which was possible to use in iron-data-table, from where I grabbed most of initial code for this element.

I'm going to have a quick look at this tonight and to provide a branch from where you could start experimenting with external dataSource. This should make external sorting easier as well.

[web-padawan]

UPD: I started playing with dataSource, but the code is not ready yet. Hope I will be able to provide an example later on this week, there are some things to refactor for using external data source.