Colin Law wrote: [...] > I believe rails will not stop you creating a record with an empty > user_id. To be pedantic this is 'does not belong to any user' rather > than 'belongs to a non-existent user' (for a non-existent user the > user_id would contain a non-nil value for which there is no user).
Correct. > In > some applications this is a valid requirement. If you wish to prevent > this then include validates_presence_of as you have indicated. Also make the field not null in the DB and add a foreign key constraint (the foreign_key_migrations and foreign_key_associations plugins make this easy). Remember, Rails' validations are not a replacement for the DB's integrity checks. Don't rely solely on Rails for this. > > Colin Best, -- Marnen Laibow-Koser http://www.marnen.org [email protected] -- Posted via http://www.ruby-forum.com/. --~--~---------~--~----~------------~-------~--~----~ You received this message because you are subscribed to the Google Groups "Ruby on Rails: Talk" group. To post to this group, send email to [email protected] To unsubscribe from this group, send email to [email protected] For more options, visit this group at http://groups.google.com/group/rubyonrails-talk?hl=en -~----------~----~----~----~------~----~------~--~---
