dashboard/areas/roles/role_service.py

from .models import Role


class RoleService:
    @staticmethod
    def get_roles():
        roles = Role.query.all()
        return [{"id": r.id, "name": r.name} for r in roles]

    @staticmethod
    def get_role_by_id(role_id):
        if role_id is None:
            role = Role()
            role.name = 'user'
            return role
        
        return Role.query.filter_by(id=role_id).first()