79 lines
1.5 KiB
JavaScript
79 lines
1.5 KiB
JavaScript
/**
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* @flow
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* QuerySnapshot representation wrapper
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*/
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import DocumentChange from './DocumentChange';
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import DocumentSnapshot from './DocumentSnapshot';
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import type Firestore from './';
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import type {
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NativeDocumentChange,
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NativeDocumentSnapshot,
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SnapshotMetadata,
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} from './types';
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import type Query from './Query';
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type NativeQuerySnapshot = {
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changes: NativeDocumentChange[],
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documents: NativeDocumentSnapshot[],
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metadata: SnapshotMetadata,
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};
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/**
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* @class QuerySnapshot
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*/
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export default class QuerySnapshot {
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_changes: DocumentChange[];
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_docs: DocumentSnapshot[];
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_metadata: SnapshotMetadata;
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_query: Query;
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constructor(
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firestore: Firestore,
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query: Query,
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nativeData: NativeQuerySnapshot
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) {
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this._changes = nativeData.changes.map(
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change => new DocumentChange(firestore, change)
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);
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this._docs = nativeData.documents.map(
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doc => new DocumentSnapshot(firestore, doc)
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);
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this._metadata = nativeData.metadata;
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this._query = query;
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}
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get docChanges(): DocumentChange[] {
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return this._changes;
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}
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get docs(): DocumentSnapshot[] {
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return this._docs;
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}
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get empty(): boolean {
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return this._docs.length === 0;
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}
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get metadata(): SnapshotMetadata {
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return this._metadata;
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}
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get query(): Query {
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return this._query;
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}
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get size(): number {
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return this._docs.length;
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}
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forEach(callback: DocumentSnapshot => any) {
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// TODO: Validation
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// validate.isFunction('callback', callback);
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this._docs.forEach(doc => {
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callback(doc);
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});
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}
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}
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