* Caching sum privileged reaction scores
This relates to work on improving the feed. Namely that in the current
proposal in PR #15240 I'm not accounting for how privileged users have
given feedback on an article.
With this change, I will now have a cached value on the articles table
that can be a proxy for how the privileged users have reacted.
In addition there's a small refactor that moves a constant to the
correct scoping object.
Dependent on #15283.
* Fixing method name to `exists?`
Prior to this commit, I was using `exist?` which doesn't work for
ActiveRecord::Relation objects.
95969eb973