How to do joins on subqueries in AREL within Rails

Question

I have a simple model

class User
    has_many :logs


class Logs

related in the usual way through the foreign key logs.user_id. I\'m trying to

Answer 1

You can use join_sources to retrieve the Arel::Nodes::Join from the instance of Arel::SelectManager, and pass that to joins

Using your example:

l_t.joins(counts.join_sources).on(l_t[:id].eq(counts[:user_id]))