Can't see postgresql tables when using mongoid

Hi! I'm using mongoid alongside postgresql in a rails 5 app.

My resque jobs work perfectly with the mongoid models, however, whenever I try to use one of my postgresql tables inside a job, I get the following error:

PG::UndefinedTable: ERROR: relation "admins" does not exist LINE 1: SELECT "admins".* FROM "admins" ^ : SELECT "admins".* FROM "admins"

This is my lib/tasks/resque.rake file

require 'resque/tasks'

task "resque:setup" => :environment do
	ENV['QUEUE'] = '*'
	Resque.before_fork do
    defined?(ActiveRecord::Base) and
      ActiveRecord::Base.connection.disconnect!
  end

  Resque.after_fork do
    defined?(ActiveRecord::Base) and
      ActiveRecord::Base.establish_connection
  end
end

The postgres table mentioned does exist, and works perfectly with the rails app. It seems like, at least outside of the main rails app, ActiveRecord defaults to using mongoid, so none of my postgresql models are visible inside the worker.

Am I missing something?

Start with lib/tasks/resque.rake and reproduce the failure in a Resque job that queries the PostgreSQL-backed Admin model alongside a Mongoid model. Trace how the worker initializes ActiveRecord and Mongoid connections; done means the PostgreSQL table can be queried successfully from the job without the PG::UndefinedTable error.