49 lines
1.3 KiB
JavaScript
49 lines
1.3 KiB
JavaScript
import set from "lodash.set";
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import unset from "lodash.unset";
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import cloneDeep from "lodash.clonedeep";
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/**
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* Remove all empty values from an object recursively
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* @param {Object} obj
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*/
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function trimArraysInObject(obj) {
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for (let key in obj) {
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const value = obj[key];
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if (Array.isArray(value)) {
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let arr = [];
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for (let i = 0; i < value.length; i++) {
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const el = value[i];
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if (typeof el === "object") {
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arr.push(trimArraysInObject(el));
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} else if (el !== undefined) {
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arr.push(el);
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}
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}
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obj[key] = arr;
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} else if (typeof obj[key] === "object") {
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obj[key] = trimArraysInObject(obj[key]);
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}
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}
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return obj;
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}
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export function applyObservableChange(change) {
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// Custom application of dexie change to fix issue with array indices being wrong
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// https://github.com/dfahlander/Dexie.js/issues/1176
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// TODO: Fix dexie observable source
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let obj = cloneDeep(change.oldObj);
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const changes = Object.entries(change.mods).reverse();
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for (let [key, value] of changes) {
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if (value === null) {
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unset(obj, key);
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} else {
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obj = set(obj, key, value);
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}
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}
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// Trim empty values from calling unset on arrays
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obj = trimArraysInObject(obj);
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return obj;
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}
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