ember-changeset/addon/helpers/changeset.js

Changesets for Ember

import { helper } from '@ember/component/helper';
import { Changeset } from 'ember-changeset';
import {
  lookupValidator,
  isChangeset,
  isPromise,
  isObject,
} from 'validated-changeset';

export function changeset([obj, validations], options = {}) {
  if (!obj) {
    // route transitions may trigger this
    return;
  }

  if (isChangeset(obj)) {
    return obj;
  }

  if (isObject(validations)) {
    if (isPromise(obj)) {
      return obj.then((resolved) =>
        Changeset(resolved, lookupValidator(validations), validations, options),
      );
    }

    return Changeset(obj, lookupValidator(validations), validations, options);
  }

  if (isPromise(obj)) {
    return Promise.resolve(obj).then((resolved) =>
      Changeset(resolved, validations, {}, options),
    );
  }

  return Changeset(obj, validations, {}, options);
}

export default helper(changeset);