How can multiple constraints be described in an XPDO schema?

Question

MODX

SQL has the following syntax to specify a multiple constraint

CREATE TABLE Customers 
          ( cnum       integer NOT NULL, 
            cname      char (10) NOT NULL, 
            city       char (10), 
            rating     integer, 
            snum       integer NOT NULL, 
            UNIQUE  (cnum, snum));

How can multiple constraints be described in an XPDO schema?

Answer 1

UNIQUE(cnum, snum) is a regular index that is added using the addIndex() method api.modx.com/revolution/2.1/_xpdo_om_xpdomanager.c... ()