Hi, I have the following model:
Domain (*)<-(1) Account (*)<-(1) UserThat is, each user belongs to exactly 1 account, an account can have multiple users; each account belongs to a single domain, and a domain can have multiple accounts.
A user has an email address, which must be unique across the domain (since it's used to log into that domain: on login you select the domain and then enter your email and password).
However, the email address need *not* be unique across different domains. Thus, I want the following combination to be unique:
(Domain.id, User.email)Is there any way I can do this without duplicating the domain id in the User table?
Regards, Sebastiaan
smime.p7s
Description: S/MIME Cryptographic Signature
