open-consul/ui/packages/consul-ui/app/helpers/collection.js

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import Helper from '@ember/component/helper';
import { get } from '@ember/object';
import { Collection as Service } from 'consul-ui/models/service';
import { Collection as ServiceInstance } from 'consul-ui/models/service-instance';
const collections = {
service: Service,
'service-instance': ServiceInstance,
};
class EmptyCollection {}
export default class CollectionHelper extends Helper {
compute([collection, str], hash) {
if (collection.length > 0) {
// TODO: Looksee if theres ever going to be a public way to get this
const modelName = get(collection, 'firstObject')._internalModel.modelName;
const Collection = collections[modelName];
return new Collection(collection);
} else {
return new EmptyCollection();
}
}
}