method
association_constructor_method

association_constructor_method(constructor, association_name, association_class_name, association_class_primary_key_name, options, association_proxy_class)
private
Hide source
# File activerecord/lib/active_record/associations.rb, line 826 def association_constructor_method(constructor, association_name, association_class_name, association_class_primary_key_name, options, association_proxy_class) define_method("#{constructor}_#{association_name}") do |*params| attributees = params.first unless params.empty? replace_existing = params[1].nil? ? true : params[1] association = instance_variable_get("@#{association_name}") if association.nil? association = association_proxy_class.new(self, association_name, association_class_name, association_class_primary_key_name, options) instance_variable_set("@#{association_name}", association) end if association_proxy_class == HasOneAssociation association.send(constructor, attributees, replace_existing) else association.send(constructor, attributees) end end end