Ignore has one associations that relies on LIMIT 1

[sobrinho]

Hi there,

We can almost detect that relies on LIMIT 1 by checking if an order was specified.

Example:

class Order < ApplicationRecord
  has_many :payments
  has_one :last_payment, through: :payments, order: 'paid_at desc'
end

If the order is specified, we are certain that the database may have more than one record.

In that case, we can simply do not auto include because we know that may trigger a problem.

Wdyt?

[jturkel]

Sounds reasonable. Want to take a crack at a PR?

[sobrinho]

Yes, sure!

I will work on this.