Removing a model in rails reverse of rails g model Title

Question

rails g model Rating user id integer message string value integer   How can I completely remove this model  Thanks

User · Answer

bundle exec rake db rollback     rails destroy model  lt model name gt    When you generate a model  it creates a database migration  If you run  destroy  on that model  it will delete the migration file  but not the database table  So before run  bundle exec rake db rollback

User · Answer

Here s a different implementation of Jenny Lang s answer that works for Rails 5   First create the migration file   bundle exec be rails g migration DropEpisodes   Then populate the migration file as follows   class DropEpisodes  lt  ActiveRecord  Migration 5 1    def change     drop table  episodes   end end   Running rails db migrate will drop the table   If you run rails db rollback  Rails will throw a ActiveRecord  IrreversibleMigration error

User · Answer

To remove migration  if you already migrated the migration   rake db migrate down VERSION  20130417185845   Your migration version  To remove Model  rails d model name   name   gt  Your model name

User · Answer

Try this  rails destroy model Rating   It will remove model  migration  tests and fixtures

User · Answer

For future questioners   If you can t drop the tables from the console  try to create a migration that drops the tables for you   You should create a migration and then in the file note tables you want dropped like this   class DropTables  lt  ActiveRecord  Migration   def up     drop table  table you dont want   end    def down     raise ActiveRecord  IrreversibleMigration   end end

[ruby-on-rails] Removing a model in rails (reverse of "rails g model Title...")

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