threshold-ui/ui/core/mirage/serializers/role.js

import ApplicationSerializer from './application';

export default ApplicationSerializer.extend({
  modelName: 'role',

  _hashForModel(model) {
    const json = ApplicationSerializer.prototype._hashForModel.apply(this, arguments);
    const serializedUsers = model.users.models.map(user => ({
      scope_id: model.scope.id,
      id: user.id,
      type: 'user'
    }));
    const serializedGroups = model.groups.models.map(group => ({
      scope_id: model.scope.id,
      id: group.id,
      type: 'group'
    }));
    json.principals = [ ...serializedUsers, ...serializedGroups ];
    if (!json.principals.length) delete json.principals;

    // default grant scope
    if (!json.grant_scope_id) json.grant_scope_id = json.scope.id;

    return json;
  }
});