method

attributes_for_create

rails latest stable - Class: ActiveRecord::AttributeMethods

attributes_for_create(attribute_names)

private

Filters out the virtual columns and also primary keys, from the attribute names, when the primary key is to be generated (e.g. the id attribute has no value).

# File activerecord/lib/active_record/attribute_methods.rb, line 483
      def attributes_for_create(attribute_names)
        attribute_names &= self.class.column_names
        attribute_names.delete_if do |name|
          (pk_attribute?(name) && id.nil?) ||
            column_for_attribute(name).virtual?
        end
      end

attributes_for_create

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