src/store-bookshelf/lib/related_collection.js
/**
* Generate an empty collection for a Bookshelf model relation.
*
* @param {Bookshelf.Model} model
* @param {String} relationName
* @return {Bookshelf.Collection}
*/
export default function (model, relationName) {
const src = model.forge ? model : model.constructor;
return src.forge().related(relationName).relatedData.target.collection();
}