53 lines
1.5 KiB
JavaScript
53 lines
1.5 KiB
JavaScript
// usage:
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//
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// import lazyCapabilities, { apiPath } from 'vault/macros/lazy-capabilities';
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//
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// export default DS.Model.extend({
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// //pass the template string as the first arg, and be sure to use '' around the
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// //parameters that get interpolated in the string - that's how the template function
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// //knows where to put each value
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// zeroAddressPath: lazyCapabilities(apiPath`${'id'}/config/zeroaddress`, 'id'),
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//
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// });
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//
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import { maybeQueryRecord } from 'vault/macros/maybe-query-record';
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export function apiPath(strings, ...keys) {
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return function(data) {
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let dict = data || {};
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let result = [strings[0]];
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keys.forEach((key, i) => {
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result.push(dict[key], strings[i + 1]);
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});
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return result.join('');
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};
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}
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export default function() {
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let [templateFn, ...keys] = arguments;
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return maybeQueryRecord(
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'capabilities',
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context => {
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// pull all context attrs
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let contextObject = context.getProperties(...keys);
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// remove empty ones
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let nonEmptyContexts = Object.keys(contextObject).reduce((ret, key) => {
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if (contextObject[key] != null) {
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ret[key] = contextObject[key];
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}
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return ret;
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}, {});
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// if all of them aren't present, cancel the fetch
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if (Object.keys(nonEmptyContexts).length !== keys.length) {
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return;
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}
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// otherwise proceed with the capabilities check
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return {
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id: templateFn(nonEmptyContexts),
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};
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},
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...keys
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);
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}
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