Class: ActiveRecord::PredicateBuilder::RelationHandler

# File 'activerecord/lib/active_record/relation/predicate_builder/relation_handler.rb', line 6

def call(attribute, value)
  if value.eager_loading?
    value = value.send(:apply_join_dependency)
  end

  if value.select_values.empty?
    if value.klass.composite_primary_key?
      raise ArgumentError, "Cannot map composite primary key #{value.klass.primary_key} to #{attribute.name}"
    else
      value = value.select(value.table[value.klass.primary_key])
    end
  end

  attribute.in(value.arel)
end