dataCount takes a crossfilter as its dimension

[gordonwoodhull]

Continuing the tradition of misnaming methods (#855), you need to pass a crossfilter object as the dimension to the dataCount widget.

C'mon, really? Why? Are we deliberately trying to trip people up?

[kum-deepak]

I did get tripped over it during my effort to split crossfilter into an interface (as part of my effort to create remote data providers).

[gordonwoodhull]

Hi @kum-deepak! I started a library for providing what's needed by dc.js of the crossfilter interface here:

https://github.com/att/xfilter

So far it supports Nanocubes and a simple restful server as backends.

It could be improved a lot but maybe it will provide you some ideas.

[kum-deepak]

Actually my code would have reached very similar to this project. Many thanks!

Quite timely for me.

[gordonwoodhull]

A way forward for these places where a property name is reused in an incompatible way:

1. Change mandatoryAttributes for these classes so that the problematic properties are not required.
2. Implement a new property with a more appropriate name. (I guess crossfilter here, and perhaps also groupAll instead of group... neither of those is entirely satisfactory but they would be more clear.)
3. Deprecate the existing property with a warning that the property name is misleading, and forward the setter to the new property.