method

attribute_names

v8.0.0 - Show latest stable - Class: ActiveRecord::AttributeMethods::ClassMethods

attribute_names()

public

Returns an array of column names as strings if it’s not an abstract class and table exists. Otherwise it returns an empty array.

class Person < ActiveRecord::Base
end

Person.attribute_names
# => ["id", "created_at", "updated_at", "name", "age"]

# File activerecord/lib/active_record/attribute_methods.rb, line 235
      def attribute_names
        @attribute_names ||= if !abstract_class? && table_exists?
          attribute_types.keys
        else
          []
        end.freeze
      end

attribute_names

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