Dear Web2py users, I have a few questions about validators, especially : when are they necessary ?
For example, if I have like in chapter 3 ( http://www.web2py.com/book/default/chapter/03?search=image_id ) : db.define_table('comment', Field('image_id', db.image)) Is "db.comment.image_id.requires = IS_IN_DB(db, db.image.id)" or even "db.comment.image_id.requires = IS_IN_DB(db, db.image.id, '% (title)s')" redundant ? I am asking because one could think this is already declared in the table definition. Thanks a lot, Archibald
