instance method `column_names`

Ruby on Rails 4.0.13

Since v3.2.22.5

Available in: v3.2.22.5 v4.0.13 v4.1.16 v4.2.9 v5.2.8.1 v6.0.6 v6.1.7.10 v7.0.10 v7.1.6 v7.2.3 v8.0.4 v8.1.2

Compare with:

column_names()

Returns an array of column names as strings.

Source

# File activerecord/lib/active_record/model_schema.rb, line 253
      def column_names
        @column_names ||= columns.map { |column| column.name }
      end

Defined in activerecord/lib/active_record/model_schema.rb line 253 · View on GitHub · Improve this page · Find usages on GitHub

Defined in ActiveRecord::ModelSchema::ClassMethods

Signature