instance method `writer_method`

Ruby on Rails 4.1.16

Since v2.2.3 Private

Available in: v2.2.3 v2.3.18 v3.0.20 v3.1.12 v3.2.22.5 v4.0.13 v4.1.16 v4.2.9 v5.2.8.1 v6.0.6 v6.1.7.10 v7.0.10 v7.1.6 v7.2.3 v8.0.4 v8.1.2

Compare with:

writer_method(name, class_name, mapping, allow_nil, converter)

No documentation comment.

Parameters

name req
class_name req
mapping req
allow_nil req
converter req

Source

# File activerecord/lib/active_record/aggregations.rb, line 244
        def writer_method(name, class_name, mapping, allow_nil, converter)
          define_method("#{name}=") do |part|
            klass = class_name.constantize
            unless part.is_a?(klass) || converter.nil? || part.nil?
              part = converter.respond_to?(:call) ? converter.call(part) : klass.send(converter, part)
            end

            if part.nil? && allow_nil
              mapping.each { |pair| self[pair.first] = nil }
              @aggregation_cache[name] = nil
            else
              mapping.each { |pair| self[pair.first] = part.send(pair.last) }
              @aggregation_cache[name] = part.freeze
            end
          end
        end

Defined in activerecord/lib/active_record/aggregations.rb line 244 · View on GitHub · Improve this page · Find usages on GitHub

Defined in ActiveRecord::Aggregations::ClassMethods

Signature

Parameters