RenderingTranslationService.ts

@Injectable() export class RenderingTranslationService {
    constructor() {}
    private renderingTranslationRules: RenderingTranslationRule[] = [RenderingTranslationRule.freetextRenderingRule, RenderingTranslationRule.radioRenderingRule, RenderingTranslationRule.checkboxRenderingRule, RenderingTranslationRule.comboboxRenderingRule];
    getRenderingForQuestion(question: Question): Rendering {
        let renderingToReturn;
        for (const renderingTranslationRule of this.renderingTranslationRules) {
            if (renderingTranslationRule.booleanExp(question)) {
                renderingToReturn = renderingTranslationRule.rendering;
                break;
            }
        }
        if (!renderingToReturn) {
            throw new Error('No renderings for question: ' + question.externalQuestionId);
        }
        return renderingToReturn;
    }
}