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[firestore] add support for `DocumentSnapshot.get('dot.notated.field.path')`

This commit is contained in:
Salakar 2018-04-12 12:30:41 +01:00
parent 590d69ce89
commit f1e9d28869
3 changed files with 5 additions and 4 deletions
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3
lib/modules/database/DataSnapshot.js
View File

@ -51,7 +51,8 @@ export default class DataSnapshot {
* @returns {Snapshot} * @returns {Snapshot}
*/ */
child(path: string): DataSnapshot { child(path: string): DataSnapshot {
const value = deepGet(this._value, path); let value = deepGet(this._value, path);
if (value === undefined) value = null;
const childRef = this.ref.child(path); const childRef = this.ref.child(path);
return new DataSnapshot(childRef, { return new DataSnapshot(childRef, {
value, value,

4
lib/modules/firestore/DocumentSnapshot.js
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@ -5,7 +5,7 @@
import DocumentReference from './DocumentReference'; import DocumentReference from './DocumentReference';
import FieldPath from './FieldPath'; import FieldPath from './FieldPath';
import Path from './Path'; import Path from './Path';
import { isObject } from '../../utils'; import { isObject, deepGet } from '../../utils';
import { parseNativeMap } from './utils/serialize'; import { parseNativeMap } from './utils/serialize';
import type Firestore from './'; import type Firestore from './';
@ -63,6 +63,6 @@ export default class DocumentSnapshot {
if (fieldPath instanceof FieldPath) { if (fieldPath instanceof FieldPath) {
return extractFieldPathData(this._data, fieldPath._segments); return extractFieldPathData(this._data, fieldPath._segments);
} }
return this._data ? this._data[fieldPath] : undefined; return this._data ? deepGet(this._data, fieldPath, '.') : undefined;
} }
} }

2
lib/utils/index.js
View File

@ -33,7 +33,7 @@ export function deepGet(
while (i < len) { while (i < len) {
const key = keys[i++]; const key = keys[i++];
if (!tmp || !hasOwnProperty.call(tmp, key)) return null; if (!tmp || !hasOwnProperty.call(tmp, key)) return undefined;
tmp = tmp[key]; tmp = tmp[key];
} }