62 lines
1.6 KiB
JavaScript
62 lines
1.6 KiB
JavaScript
import { _ } from 'meteor/underscore';
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import { Template } from 'meteor/templating';
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/**
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* Global Blaze UI helpers to manipulate data
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*/
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// Base extend function to be used by extend and clone helpers
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const extend = (...argsArray) => {
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// Create the resulting object
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const result = argsArray[0] || {};
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// Extract the Spacebars kw hash
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const lastArg = _.last(argsArray);
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const kwHash = lastArg ? lastArg.hash : null;
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// Extract the given objects
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const objects = _.initial(argsArray);
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// Iterate over the given objects
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_.each(objects, current => {
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// Stop here if the current argument is not an object
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if (typeof current !== 'object') {
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return;
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}
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// Extend the resulting object with the current argument object
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_.extend(result, current);
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});
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// Extend the resulting object with the Spacebars kw hash
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_.extend(result, kwHash);
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// Return the resulting object
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return result;
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};
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// Extend the first argument object it with the other argument objects
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Template.registerHelper('extend', (...argsArray) => {
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return extend(...argsArray);
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});
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// Create a new object and extends it with the argument objects
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Template.registerHelper('clone', (...argsArray) => {
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const newArgs = argsArray.slice();
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newArgs.unshift({});
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return extend(...newArgs);
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});
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// Choose the first truthy value in the given values
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Template.registerHelper('choose', (...values) => {
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let result;
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_.each(_.initial(values, 1), value => {
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if (result) {
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return;
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}
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result = value;
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});
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return result;
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});
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