open-consul/ui-v2/app/utils/computed/purify.js
John Cowen e0326c3b0a UI: Service Instances (#5326)
This gives more prominence to 'Service Instances' as opposed to 'Services'. It also begins to surface Connect related 'nouns' such as 'Proxies' and 'Upstreams' and begins to interconnect them giving more visibility to operators.

Various smaller changes:

1. Move healthcheck-status component to healthcheck-output
2. Create a new healthcheck-status component for showing the number of
checks plus its icon
3. Create a new healthcheck-info component to group multiple statuses
plus a different view if there are no checks
4. Componentize tag-list
2019-05-01 18:22:10 +00:00

43 lines
1.6 KiB
JavaScript

import { get, computed } from '@ember/object';
/**
* Converts a conventional non-pure Ember `computed` function into a pure one
* (see https://github.com/emberjs/rfcs/blob/be351b059f08ac0fe709bc7697860d5064717a7f/text/0000-tracked-properties.md#avoiding-dependency-hell)
*
* @param {function} computed - a computed function to 'purify' (convert to a pure function)
* @param {function} filter - Optional string filter function to pre-process the names of computed properties
* @returns {function} - A pure `computed` function
*/
const _success = function(value) {
return value;
};
const purify = function(computed, filter = args => args) {
return function() {
let args = [...arguments];
let success = _success;
// pop the user function off the end
if (typeof args[args.length - 1] === 'function') {
success = args.pop();
}
args = filter(args);
// this is the 'conventional' `computed`
const cb = function(name) {
return success.apply(
this,
args.map(item => {
// Right now this just takes the first part of the path so:
// `items.[]` or `items.@each.prop` etc
// gives you `items` which is 'probably' what you expect
// it won't work with something like `item.objects.[]`
// it could potentially be made to do so, but we don't need that right now at least
return get(this, item.split('.')[0]);
})
);
};
// concat/push the user function back on
return computed(...args.concat([cb]));
};
};
export const subscribe = purify(computed);
export default purify;