Question

I saw the following code example:

Subscription.where(:created_at.gte => t0)`

To me, this seems a little more ruby/rails-like as opposed to:

Subscription.where("created_at > ?", t0)`

However, attempting to reproduce this in my own code on results in:

undefined method `gte’ for :created_at:Symbol

I’m not certain, but I believe this is a MongoDB method. If so is there any way I can extend ActiveRecord to make use of it?

Answer 1

You are correct. This is mongoid query DSL.

Similar way to extend ActiveRecord is achieved using squeel gem. However, it is slightly different.

Subscription.where{ created_at.gte => t0 }

Notice different brackets and created_at is not a symbol.