instance method `attribute_names`

Ruby on Rails 4.2.9

Since v4.0.13

Compare with:

attribute_names()

Returns an array of names for the attributes available on this object.

class Person < ActiveRecord::Base
end

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

Source

# File activerecord/lib/active_record/attribute_methods.rb, line 271
    def attribute_names
      @attributes.keys
    end

Defined in activerecord/lib/active_record/attribute_methods.rb line 271 · View on GitHub · Improve this page · Find usages on GitHub

Signature