Did this ever get resolved? I tried looking for a ticket on this but only found one related to setting unique=True. I have to convert my app to support multiple tenants and IS_IN_DB() and IS_NOT_IN_DB() are going to be used in several places to make sure that a tenant cannot have duplicate rows in a table, yet allow duplicates between tenants.
For example, if I have a table called 'keywords' that allows tenants to create a list of keywords, it is possible that two tenants would use the same keyword, yet you wouldn't want the a tenant to enter the same keyword multiple times. Hope that makes sense. Also, I will have the same requirement as David when it comes to multiple user accounts per tenant. I'm not sure how to handle this one.
