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24 lines
660 B
JavaScript
24 lines
660 B
JavaScript
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import update from 'immutability-helper';
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import { sortedIndex, findIndex } from 'underscore';
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update.extend('$addToSetByIdOrdered', function({ item, sort }, set) {
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// First remove the item
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const setWithoutItem = update(set, { $removeFromSetById: item });
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// Now find where to put it
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const index = sortedIndex(setWithoutItem, item, sort);
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return update(setWithoutItem, { $splice: [[index, 0, item]] });
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});
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update.extend('$removeFromSetById', function(item, set) {
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const index = findIndex(set, ['id', item.id]);
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if (index === -1) {
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return set;
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} else {
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return update(set, { $splice: [[index, 1]] });
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}
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});
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export default update;
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