app/controllers/application_notes_controller.rb
class ApplicationNotesController < ApplicationController
def create
@application_letter = ApplicationLetter.find(params[:application_letter_id])
@application_note = @application_letter.application_notes.create(notes_params)
if @application_note.valid?
redirect_to application_letter_path(@application_letter)
else
render 'application_letters/show'
end
end
private
def notes_params
params.require(:application_note).permit(:note)
end
end