I have a question to the following procedure:

• script/generate scaffold product title:string description:text
• db:migrate

• then I generate a migration which adds a column description to the

  table products and migrate the db again.

My question is: why is the field description not added to the project-views? Is that normal rails scaffold behaviour? I think I saw in a video tutorial that the scaffold updates as well the views, which wo开发者_JAVA百科uld be very convenient. Thanks in advance for any help!

This is normal since scaffold does not "monitor" changes to the table or to any other scaffold-related resource (controller, model, views, tests, etc.).

then I generate a migration which adds a column description to the table products

You have description column already when generating the scaffold. Why do you need another migration for this?

This is normal behaviour for scaffolding, however there are alternatives.

If you were to look at Ryan Bates nifty_scaffold generator then this would allow you to re-run the scaffold generation. Assuming that you hadn't changed the generated code.

These generators can regenerate the views/spec/tests based upon the current state of the database model.

Be aware that if you have already customised the views yourself then they could be overwritten.