Ability to change variants? about split

[andrew]

Experiments have the concept of versions, if you change alternatives or reset an experiment it should bump the version of the experiment, this is because the user only has the experiment name and a single alternative stored in their cookie.

With no way to expire their cookie, incrementing the version (which stores the experiment as experiment:version in the cookie) means that the user should receive a new alternative from the second version of the experiment.

I suspect that when you use km in this fashion the experiment version is never used so you only every get version 0, and the alternatives have already been set for that.

I think something like this should work for you:

<% Split::Experiment.all.each do |experiment| %>
  <% km.set(experiment.key, ab_test(experiment.name, *experiment.alternative_names)) %>
<% end %>

[jasonm]

Thanks @andrew - makes sense.