method

build_through_record

v7.0.0 - Show latest stable - 0 notes - Class: ActiveRecord::Associations::HasManyThroughAssociation

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What's this?

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 56
        def build_through_record(record)
          @through_records[record] ||= begin
            ensure_mutable

            attributes = through_scope_attributes
            attributes[source_reflection.name] = record
            attributes[source_reflection.foreign_type] = options[:source_type] if options[:source_type]

            through_association.build(attributes)
          end
        end

build_through_record

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