Hello

Sorry for all the questions :$. I've got this validator:

data.comment.image.id.requires = IS_IN_DB(db, db.image.id, '%(title)
s')

It says it needs to be in the db. What what does (db, db.image.id, '%
(title)s') mean? And: IS_NOT_IN_DB(db, db.image.title). That means
that the value of image title cannot be in the database right?

Thanks!
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