react-native-firebase/lib/modules/firestore/DocumentSnapshot.js

58 lines
1.2 KiB
JavaScript

/**
* @flow
* DocumentSnapshot representation wrapper
*/
import DocumentReference from './DocumentReference';
import Path from './Path';
import { parseNativeMap } from './utils/serialize';
export type SnapshotMetadata = {
fromCache: boolean,
hasPendingWrites: boolean,
}
export type DocumentSnapshotNativeData = {
data: Object,
metadata: SnapshotMetadata,
path: string,
}
/**
* @class DocumentSnapshot
*/
export default class DocumentSnapshot {
_data: Object;
_metadata: SnapshotMetadata;
_ref: DocumentReference;
constructor(firestore: Object, nativeData: DocumentSnapshotNativeData) {
this._data = parseNativeMap(firestore, nativeData.data);
this._metadata = nativeData.metadata;
this._ref = new DocumentReference(firestore, Path.fromName(nativeData.path));
}
get exists(): boolean {
return this._data !== undefined;
}
get id(): string | null {
return this._ref.id;
}
get metadata(): SnapshotMetadata {
return this._metadata;
}
get ref(): DocumentReference {
return this._ref;
}
data(): Object {
return this._data;
}
get(fieldPath: string): any {
return this._data[fieldPath];
}
}