app/helpers/form-input-class.js
import { helper } from '@ember/component/helper';
export function formInputClass([invalid, valid]) {
const klasses = ['form-control'];
if (invalid === true) {
klasses.push('form-control-warning');
} else if (valid === true) {
klasses.push('form-control-success');
}
return klasses.join(' ');
}
export default helper(formInputClass);