It looks like a typo was introduced in the BandsController
between B6 and B8. I looked in the first and last chapter version, but didn’t check every intermediate version. The code is not excerpted in the book, so the code download itself just needs to be updated.
# lines 94-96
# :genre_tags has an extra e :genere_tags
private def band_params
params.require(:band).permit(:name, :description, :genere_tags)
end
I checked the create_bands
migration and :genre_tags
is spelled correctly there so you would not be able to update the attribute via the controller.