method

build_through_record

v5.1.7 - Show latest stable - 0 notes - Class: ActiveRecord::Associations::HasManyThroughAssociation

build_through_record(record) private

The through record (built with build_record) is temporarily cached so that it may be reused if insert_record is subsequently called.

However, after insert_record has been called, the cache is cleared in order to allow multiple instances of the same record in an association.

Show source

# File activerecord/lib/active_record/associations/has_many_through_association.rb, line 61
        def build_through_record(record)
          @through_records[record.object_id] ||= begin
            ensure_mutable

            through_record = through_association.build(*options_for_through_record)
            through_record.send("#{source_reflection.name}=", record)

            if options[:source_type]
              through_record.send("#{source_reflection.foreign_type}=", options[:source_type])
            end

            through_record
          end
        end

build_through_record

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