27 lines
832 B
JavaScript
27 lines
832 B
JavaScript
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'use strict';
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var _ = require('lodash');
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var rx = require('rx-lite-aggregates');
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var runAsync = require('run-async');
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/**
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* Resolve a question property value if it is passed as a function.
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* This method will overwrite the property on the question object with the received value.
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* @param {Object} question - Question object
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* @param {String} prop - Property to fetch name
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* @param {Object} answers - Answers object
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* @return {rx.Obsersable} - Observable emitting once value is known
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*/
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exports.fetchAsyncQuestionProperty = function (question, prop, answers) {
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if (!_.isFunction(question[prop])) {
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return rx.Observable.return(question);
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}
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return rx.Observable.fromPromise(runAsync(question[prop])(answers)
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.then(function (value) {
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question[prop] = value;
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return question;
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})
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);
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};
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