An ActiveRecord
model is backed by a table in your application's database. We
can get the column names for a backing table with ActiveRecord
s help using
the .column_names
method.
> Book.column_names
=> ["id", "title", "publication_year", "created_at", "updated_at", "author_id", "genre"]
Any ActiveRecord
model will have access to this class method.
See the docs for more details.