== Welcome to Rails == commands issued rails new lecturemethods cd lecturemethods rails generate scaffold LectureNote date:datetime notes:string methods:string bundle exec rake db:migrate rails generate scaffold course name:string bundle exec rake db:migrate # Add field course_id to LectureNote # http://guides.rubyonrails.org/migrations.html rails generate migration AddCourseIdToLectureNote course_id:integer bundle exec rake db:migrate LectureNote.all.each { | n| n.course_id = 1; n.save} - add relation to models - <td><%= link_to lecture_note.course.name, course_path(lecture_note.course) %></td>