signup.js

      let newOrg;
      let newUser;
      const newOrgPromise = (new models.Organization(ctx.org)).then(org => org.save());
      const newUserPromise = user.save();

      return Promise.all([newOrgPromise, newUserPromise])
        .then((orgResult, userResult) => {
          newOrg = orgResult;
          newUser = userResult;
          return newOrg.appendUser(newUser);
        })
        .then(() => newUser.updateOrCreateOrgRole('owner', newOrg.name));