Differential D362 Diff 1357 lib/app/base-chips/calculated-field-types/aggregate.js

Changeset View

Standalone View

	"use strict";
	const Promise = require("bluebird");

	module.exports = function(app) {			module.exports = function(app) {
	return {			return {
	name: "aggregate",			name: "aggregate",
	calculate: function(context, params, item, db_document) {			calculate(context, params, item, db_document) {
	let stages = params.stages;			let stages = params.stages;
	if (params.stages instanceof Function) {			if (params.stages instanceof Function) {
	stages = params.stages(context, params, item, db_document);			stages = params.stages(context, params, item, db_document);
	}			}
	return app.Datastore.aggregate(params.collection, stages).then(			return app.Datastore.aggregate(params.collection, stages).then(
	function(documents) {			documents => (documents.length ? documents[0].result : null)
	if (documents.length) {
	return documents[0].result;
	} else {
	return null;
	}
	}
	);			);
	},			},
	};			};
	};			};