APIdock / Ruby on Rails
/
Browse About
method

column_names

v5.0.0.1 - Show latest stable - Class: ActiveRecord::ModelSchema::ClassMethods
column_names()
public

Returns an array of column names as strings.

# File activerecord/lib/active_record/model_schema.rb, line 297
      def column_names
        @column_names ||= columns.map(&:name)
      end

Related methods

  • Instance methods
  • _default_attributes
  • attribute_types
  • attributes_builder
  • column_defaults
  • column_names
  • columns
  • columns_hash
  • content_columns
  • full_table_name_prefix
  • full_table_name_suffix
  • inheritance_column
  • inheritance_column=
  • next_sequence_value
  • prefetch_primary_key?
  • quoted_table_name
  • reset_column_information
  • reset_sequence_name
  • reset_table_name
  • sequence_name
  • sequence_name=
  • table_exists?
  • table_name
  • table_name=
  • type_for_attribute
  • Private methods
  • privatecompute_table_name
  • privateload_schema
  • privateload_schema!
  • privatereload_schema_from_cache
  • privateschema_loaded?
  • privateundecorated_table_name
  • privatewarn_if_deprecated_type
APIdock API Documentation Browser

© 2026 APIdock