@data-client/normalizr
Version:
Normalizes and denormalizes JSON according to schema for Redux and Flux applications
48 lines • 6.3 kB
JavaScript
import { isImmutable, denormalizeImmutable } from './ImmutableUtils.js';
import { INVALID } from '../denormalize/symbol.js';
export const normalize = (schema, input, parent, key, args, visit) => {
const object = {
...input
};
const keys = Object.keys(schema);
for (let i = 0; i < keys.length; i++) {
const k = keys[i];
const localSchema = schema[k];
const value = visit(localSchema, input[k], input, k, args);
if (value === undefined) {
delete object[k];
} else {
object[k] = value;
}
}
return object;
};
export const denormalize = (schema, input, args, unvisit) => {
if (isImmutable(input)) {
return denormalizeImmutable(schema, input, args, unvisit);
}
const object = {
...input
};
let deleted = false;
const keys = Object.keys(schema);
for (let i = 0; i < keys.length; i++) {
const k = keys[i];
const item = unvisit(schema[k], object[k]);
if (object[k] !== undefined) {
object[k] = item;
}
if (typeof item === 'symbol') {
deleted = true;
}
}
return deleted ? INVALID : object;
};
export function queryKey(schema, args, unvisit, delegate) {
const resultObject = {};
for (const k of Object.keys(schema)) {
resultObject[k] = unvisit(schema[k], args, delegate);
}
return resultObject;
}
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