method

ids_reader

v3.1.0 - Show latest stable - Class: ActiveRecord::Associations::CollectionAssociation

ids_reader()

public

Implements the ids reader method, e.g. foo.item_ids for Foo.has_many :items

# File activerecord/lib/active_record/associations/collection_association.rb, line 45
      def ids_reader
        if loaded? || options[:finder_sql]
          load_target.map do |record|
            record.send(reflection.association_primary_key)
          end
        else
          column  = "#{reflection.quoted_table_name}.#{reflection.association_primary_key}"

          scoped.select(column).except(:includes).map! do |record|
            record.send(reflection.association_primary_key)
          end
        end
      end

ids_reader

Related methods