instance method `attribute_names`

Ruby on Rails 8.1.2

Since v6.1.7.10

Compare with:

attribute_names()

Returns all error attribute names

person.errors.messages        # => {:name=>["cannot be nil", "must be specified"]}
person.errors.attribute_names # => [:name]

Source

# File activemodel/lib/active_model/errors.rb, line 234
    def attribute_names
      @errors.map(&:attribute).uniq.freeze
    end

Defined in activemodel/lib/active_model/errors.rb line 234 · View on GitHub · Improve this page · Find usages on GitHub

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