CleanupURL removes leading and trailing whitespace and adds trailing slash.

Domain model keeps track of the mapping between org id and the generated domain name.

RepositoryEnvironment model for the gorm object of the database which represents an environment which belongs to one repository.

RepositoryPackageGroup model for the gorm object of the database which represent a package group which belong to one repository.

https://stackoverflow.com/questions/43587610/preventing-null-or-empty-string-values-in-the-db.

RepositoryRpm model for the gorm object of the database which represent a RPM package which belong to one repository.

Shared by DAO and queue packages GORM only used in DAO to read from table.