fixing AttributeError from migration db script when including a… (#6678)
fixing AttributeError from migration db script when including a… (#6678)

fixing AttributeError from migration db script when including a port n…
angelicaochoa/cbioportal,cBioPortal/cbioportal,onursumer/cbioportal,pughlab/cbioportal,pughlab/cbioportal,mandawilson/cbioportal,zhx828/cbioportal,n1zea144/cbioportal,n1zea144/cbioportal,zhx828/cbioportal,pughlab/cbioportal,onursumer/cbioportal,n1zea144/cbioportal,cBioPortal/cbioportal,zhx828/cbioportal,pughlab/cbioportal,cBioPortal/cbioportal,mandawilson/cbioportal,angelicaochoa/cbioportal,cBioPortal/cbioportal,cBioPortal/cbioportal,mandawilson/cbioportal,onursumer/cbioportal,sheridancbio/cbioportal,onursumer/cbioportal,zhx828/cbioportal,sheridancbio/cbioportal,sheridancbio/cbioportal,angelicaochoa/cbioportal,pughlab/cbioportal,n1zea144/cbioportal,sheridancbio/cbioportal,mandawilson/cbioportal,zhx828/cbioportal,n1zea144/cbioportal,onursumer/cbioportal,pughlab/cbioportal,angelicaochoa/cbioportal,zhx828/cbioportal,pughlab/cbioportal,zhx828/cbioportal,angelicaochoa/cbioportal,mandawilson/cbioportal,mandawilson/cbioportal,cBioPortal/cbioportal,n1zea144/cbioportal,angelicaochoa/cbioportal,onursumer/cbioportal,sheridancbio/cbioportal,n1zea144/cbioportal,angelicaochoa/cbioportal,sheridancbio/cbioportal,mandawilson/cbioportal