Daten hinzufügen und aktualisieren

Daten hinzufügen und aktualisieren

In diesem Dokument wird erläutert, wie Sie einzelne Dokumente in Firestore Informationen zum Schreiben von Daten im Bulk finden Sie unter Transaktionen und Batch-Schreibvorgänge:

Übersicht

Sie haben folgende Möglichkeiten, Daten in Firestore zu schreiben:

• Sie legen die Daten eines Dokuments innerhalb einer Sammlung durch explizite Angabe einer Dokument-ID fest.
• Sie fügen einer Sammlung ein neues Dokument hinzu. In diesem Fall generiert Firestore die Dokument-ID automatisch.
• Sie erstellen ein leeres Dokument mit einer automatisch generierten ID und weisen ihm später Daten zu.

Hinweis: Die Codebeispiele decken zwar mehrere Sprachen ab, der Erläuterungstext bezieht sich jedoch auf die Namen von Webmethoden.

Hinweise

Bevor Sie Firestore initialisieren können, um Daten festzulegen, hinzuzufügen oder zu aktualisieren, müssen Sie die folgenden Schritte ausführen:

• Erstellen Sie eine Firestore-Datenbank. Weitere Informationen finden Sie in den Firestore-Kurzanleitungen.
• Wenn Sie die Web- oder Mobil-Clientbibliotheken verwenden, müssen Sie sich mit Sicherheitsregeln authentifizieren. Weitere Informationen finden Sie unter Erste Schritte mit Sicherheitsregeln.
• Wenn Sie die Server-Clientbibliotheken oder die REST API verwenden, müssen Sie sich bei Identity and Access Management (IAM) authentifizieren. Weitere Informationen finden Sie unter Sicherheit für Server-Clientbibliotheken.

Firestore initialisieren

Initialisieren Sie eine Instanz von Firestore:

Webversion 9

import { initializeApp } from "firebase/app";
import { getFirestore } from "firebase/firestore";

// TODO: Replace the following with your app's Firebase project configuration
// See: https://support.google.com/firebase/answer/7015592
const firebaseConfig = {
    FIREBASE_CONFIGURATION
};

// Initialize Firebase
const app = initializeApp(firebaseConfig);


// Initialize Firestore and get a reference to the service
const db = getFirestore(app);

Ersetzen Sie FIREBASE_CONFIGURATION durch den Wert für Ihre Webanwendung. firebaseConfig

Informationen zum dauerhaften Sichern von Daten für den Fall, dass die Verbindung des Geräts unterbrochen wird, finden Sie in der Dokumentation Offlinedaten aktivieren.

Webversion 8

import firebase from "firebase/app";
import "firebase/firestore";

// TODO: Replace the following with your app's Firebase project configuration
// See: https://support.google.com/firebase/answer/7015592
const firebaseConfig = {
    FIREBASE_CONFIGURATION
};

// Initialize Firebase
firebase.initializeApp(firebaseConfig);


// Initialize Firestore and get a reference to the service
const db = firebase.firestore();

Ersetzen Sie FIREBASE_CONFIGURATION durch den Wert für Ihre Webanwendung. firebaseConfig

Informationen zum dauerhaften Sichern von Daten für den Fall, dass die Verbindung des Geräts unterbrochen wird, finden Sie in der Dokumentation Offlinedaten aktivieren.

Swift

Hinweis: Dieses Produkt nicht ist auf WatchOS- und App Clip-Zielen verfügbar.

import FirebaseCore
import FirebaseFirestore

FirebaseApp.configure()

let db = Firestore.firestore()
AppDelegate.swift

Objective-C

Hinweis: Dieses Produkt nicht ist auf WatchOS- und App Clip-Zielen verfügbar.

@import FirebaseCore;
@import FirebaseFirestore;

// Use Firebase library to configure APIs
[FIRApp configure];
  

FIRFirestore *defaultFirestore = [FIRFirestore firestore];
AppDelegate.m

Kotlin+KTX
Android

// Access a Firestore instance from your Activity

val db = Firebase.firestore
DocSnippets.kt

Java
Android

// Access a Firestore instance from your Activity

FirebaseFirestore db = FirebaseFirestore.getInstance();
DocSnippets.java

Dart

db = FirebaseFirestore.instance;

Java

import com.google.cloud.firestore.Firestore;
import com.google.cloud.firestore.FirestoreOptions;

FirestoreOptions firestoreOptions =
    FirestoreOptions.getDefaultInstance().toBuilder()
        .setProjectId(projectId)
        .setCredentials(GoogleCredentials.getApplicationDefault())
        .build();
Firestore db = firestoreOptions.getService();
Quickstart.java

Python

from google.cloud import firestore

# The `project` parameter is optional and represents which project the client
# will act on behalf of. If not supplied, the client falls back to the default
# project inferred from the environment.
db = firestore.Client(project="my-project-id")
snippets.py

Python
(Async)

from google.cloud import firestore

# The `project` parameter is optional and represents which project the client
# will act on behalf of. If not supplied, the client falls back to the default
# project inferred from the environment.
db = firestore.AsyncClient(project="my-project-id")
snippets.py

C++

// Make sure the call to `Create()` happens some time before you call Firestore::GetInstance().
App::Create();
Firestore* db = Firestore::GetInstance();
AppDelegate.mm

Node.js

const Firestore = require('@google-cloud/firestore');

const db = new Firestore({
  projectId: 'YOUR_PROJECT_ID',
  keyFilename: '/path/to/keyfile.json',
});

Go

import (
	"context"
	"flag"
	"fmt"
	"log"

	"google.golang.org/api/iterator"

	"cloud.google.com/go/firestore"
)

func createClient(ctx context.Context) *firestore.Client {
	// Sets your Google Cloud Platform project ID.
	projectID := "YOUR_PROJECT_ID"

	client, err := firestore.NewClient(ctx, projectID)
	if err != nil {
		log.Fatalf("Failed to create client: %v", err)
	}
	// Close client when done with
	// defer client.Close()
	return client
}
main.go

PHP

PHP

Richten Sie Standardanmeldedaten für Anwendungen ein, um sich bei Firestore zu authentifizieren. Weitere Informationen finden Sie unter Authentifizierung für eine lokale Entwicklungsumgebung einrichten.

use Google\Cloud\Firestore\FirestoreClient;

/**
 * Initialize Cloud Firestore with default project ID.
 */
function setup_client_create(string $projectId = null)
{
    // Create the Cloud Firestore client
    if (empty($projectId)) {
        // The `projectId` parameter is optional and represents which project the
        // client will act on behalf of. If not supplied, the client falls back to
        // the default project inferred from the environment.
        $db = new FirestoreClient();
        printf('Created Cloud Firestore client with default project ID.' . PHP_EOL);
    } else {
        $db = new FirestoreClient([
            'projectId' => $projectId,
        ]);
        printf('Created Cloud Firestore client with project ID: %s' . PHP_EOL, $projectId);
    }
}

Einheit

using Firebase.Firestore;
using Firebase.Extensions;

FirebaseFirestore db = FirebaseFirestore.DefaultInstance;

C#

C#

Richten Sie Standardanmeldedaten für Anwendungen ein, um sich bei Firestore zu authentifizieren. Weitere Informationen finden Sie unter Authentifizierung für eine lokale Entwicklungsumgebung einrichten.

FirestoreDb db = FirestoreDb.Create(project);
Console.WriteLine("Created Cloud Firestore client with project ID: {0}", project);

Ruby

require "google/cloud/firestore"

# The `project_id` parameter is optional and represents which project the
# client will act on behalf of. If not supplied, the client falls back to the
# default project inferred from the environment.
firestore = Google::Cloud::Firestore.new project_id: project_id

puts "Created Cloud Firestore client with given project ID."
quickstart.rb

Dokument festlegen

Verwenden Sie die folgenden sprachspezifischen set()-Methoden, um ein einzelnes Dokument zu erstellen oder zu überschreiben:

Webversion 9

Verwenden Sie die Methode setDoc():

import { doc, setDoc } from "firebase/firestore"; 

// Add a new document in collection "cities"
await setDoc(doc(db, "cities", "LA"), {
  name: "Los Angeles",
  state: "CA",
  country: "USA"
});
set_document.js

Webversion 8

Verwenden Sie die Methode set():

// Add a new document in collection "cities"
db.collection("cities").doc("LA").set({
    name: "Los Angeles",
    state: "CA",
    country: "USA"
})
.then(() => {
    console.log("Document successfully written!");
})
.catch((error) => {
    console.error("Error writing document: ", error);
});
test.firestore.js

Swift

Verwenden Sie die Methode setData():

Hinweis: Dieses Produkt nicht ist auf WatchOS- und App Clip-Zielen verfügbar.

// Add a new document in collection "cities"
do {
  try await db.collection("cities").document("LA").setData([
    "name": "Los Angeles",
    "state": "CA",
    "country": "USA"
  ])
  print("Document successfully written!")
} catch {
  print("Error writing document: \(error)")
}
ViewController.swift

Objective-C

Verwenden Sie die Methode setData::

Hinweis: Dieses Produkt nicht ist auf WatchOS- und App Clip-Zielen verfügbar.

// Add a new document in collection "cities"
[[[self.db collectionWithPath:@"cities"] documentWithPath:@"LA"] setData:@{
  @"name": @"Los Angeles",
  @"state": @"CA",
  @"country": @"USA"
} completion:^(NSError * _Nullable error) {
  if (error != nil) {
    NSLog(@"Error writing document: %@", error);
  } else {
    NSLog(@"Document successfully written!");
  }
}];
ViewController.m

Kotlin+KTX
Android

Verwenden Sie die Methode set():

val city = hashMapOf(
    "name" to "Los Angeles",
    "state" to "CA",
    "country" to "USA",
)

db.collection("cities").document("LA")
    .set(city)
    .addOnSuccessListener { Log.d(TAG, "DocumentSnapshot successfully written!") }
    .addOnFailureListener { e -> Log.w(TAG, "Error writing document", e) }
DocSnippets.kt

Java
Android

Verwenden Sie die Methode set():

Map<String, Object> city = new HashMap<>();
city.put("name", "Los Angeles");
city.put("state", "CA");
city.put("country", "USA");

db.collection("cities").document("LA")
        .set(city)
        .addOnSuccessListener(new OnSuccessListener<Void>() {
            @Override
            public void onSuccess(Void aVoid) {
                Log.d(TAG, "DocumentSnapshot successfully written!");
            }
        })
        .addOnFailureListener(new OnFailureListener() {
            @Override
            public void onFailure(@NonNull Exception e) {
                Log.w(TAG, "Error writing document", e);
            }
        });
DocSnippets.java

Dart

Verwenden Sie die Methode set():

final city = <String, String>{
  "name": "Los Angeles",
  "state": "CA",
  "country": "USA"
};

db
    .collection("cities")
    .doc("LA")
    .set(city)
    .onError((e, _) => print("Error writing document: $e"));
firestore.dart

Java

Verwenden Sie die Methode set():

// Create a Map to store the data we want to set
Map<String, Object> docData = new HashMap<>();
docData.put("name", "Los Angeles");
docData.put("state", "CA");
docData.put("country", "USA");
docData.put("regions", Arrays.asList("west_coast", "socal"));
// Add a new document (asynchronously) in collection "cities" with id "LA"
ApiFuture<WriteResult> future = db.collection("cities").document("LA").set(docData);
// ...
// future.get() blocks on response
System.out.println("Update time : " + future.get().getUpdateTime());
ManageDataSnippets.java

Python

Verwenden Sie die Methode set():

data = {"name": "Los Angeles", "state": "CA", "country": "USA"}

# Add a new doc in collection 'cities' with ID 'LA'
db.collection("cities").document("LA").set(data)
snippets.py

Python
(Async)

Verwenden Sie die Methode set():

data = {"name": "Los Angeles", "state": "CA", "country": "USA"}

# Add a new doc in collection 'cities' with ID 'LA'
await db.collection("cities").document("LA").set(data)
snippets.py

C++

Verwenden Sie die Methode Set():

// Add a new document in collection 'cities'
db->Collection("cities")
    .Document("LA")
    .Set({{"name", FieldValue::String("Los Angeles")},
          {"state", FieldValue::String("CA")},
          {"country", FieldValue::String("USA")}})
    .OnCompletion([](const Future<void>& future) {
      if (future.error() == Error::kErrorOk) {
        std::cout << "DocumentSnapshot successfully written!" << std::endl;
      } else {
        std::cout << "Error writing document: " << future.error_message()
                  << std::endl;
      }
    });
snippets.cpp

Node.js

Verwenden Sie die Methode set():

const data = {
  name: 'Los Angeles',
  state: 'CA',
  country: 'USA'
};

// Add a new document in collection "cities" with ID 'LA'
const res = await db.collection('cities').doc('LA').set(data);
index.js

Go

Verwenden Sie die Methode Set():

import (
	"context"
	"log"

	"cloud.google.com/go/firestore"
)

func addDocAsMap(ctx context.Context, client *firestore.Client) error {
	_, err := client.Collection("cities").Doc("LA").Set(ctx, map[string]interface{}{
		"name":    "Los Angeles",
		"state":   "CA",
		"country": "USA",
	})
	if err != nil {
		// Handle any errors in an appropriate way, such as returning them.
		log.Printf("An error has occurred: %s", err)
	}

	return err
}
save_data_set_from_map.go

PHP

Verwenden Sie die Methode set():

PHP

Richten Sie Standardanmeldedaten für Anwendungen ein, um sich bei Firestore zu authentifizieren. Weitere Informationen finden Sie unter Authentifizierung für eine lokale Entwicklungsumgebung einrichten.

$data = [
    'name' => 'Los Angeles',
    'state' => 'CA',
    'country' => 'USA'
];
$db->collection('samples/php/cities')->document('LA')->set($data);

Einheit

Verwenden Sie die Methode SetAsync():

DocumentReference docRef = db.Collection("cities").Document("LA");
Dictionary<string, object> city = new Dictionary<string, object>
{
	{ "Name", "Los Angeles" },
	{ "State", "CA" },
	{ "Country", "USA" }
};
docRef.SetAsync(city).ContinueWithOnMainThread(task => {
	Debug.Log("Added data to the LA document in the cities collection.");
});

C#

Verwenden Sie die Methode SetAsync():

DocumentReference docRef = db.Collection("cities").Document("LA");
Dictionary<string, object> city = new Dictionary<string, object>
{
    { "name", "Los Angeles" },
    { "state", "CA" },
    { "country", "USA" }
};
await docRef.SetAsync(city);
Program.cs

Ruby

Verwenden Sie die Methode set():

city_ref = firestore.doc "#{collection_path}/LA"

data = {
  name:    "Los Angeles",
  state:   "CA",
  country: "USA"
}

city_ref.set data
add_data.rb

Wenn das Dokument nicht existiert, wird es erstellt. Wenn das Dokument vorhanden ist, wird sein Inhalt mit den neu bereitgestellten Daten überschrieben, wenn Sie nicht angeben, dass die Daten wie folgt in das vorhandene Dokument eingefügt werden sollen:

Webversion 9

Informationen zur baumrüttbaren modularen Web API und Upgrade von die Namespace-API.

import { doc, setDoc } from "firebase/firestore"; 

const cityRef = doc(db, 'cities', 'BJ');
setDoc(cityRef, { capital: true }, { merge: true });
set_with_merge.js

Webversion 8

Informationen zur baumrüttbaren modularen Web API und Upgrade von die Namespace-API.

var cityRef = db.collection('cities').doc('BJ');

var setWithMerge = cityRef.set({
    capital: true
}, { merge: true });
test.firestore.js

Swift

Hinweis: Dieses Produkt nicht ist auf WatchOS- und App Clip-Zielen verfügbar.

// Update one field, creating the document if it does not exist.
db.collection("cities").document("BJ").setData([ "capital": true ], merge: true)
ViewController.swift

Objective-C

Hinweis: Dieses Produkt nicht ist auf WatchOS- und App Clip-Zielen verfügbar.

// Write to the document reference, merging data with existing
// if the document already exists
[[[self.db collectionWithPath:@"cities"] documentWithPath:@"BJ"]
     setData:@{ @"capital": @YES }
     merge:YES
     completion:^(NSError * _Nullable error) {
       // ...
     }];
ViewController.m

Kotlin+KTX
Android

// Update one field, creating the document if it does not already exist.
val data = hashMapOf("capital" to true)

db.collection("cities").document("BJ")
    .set(data, SetOptions.merge())
DocSnippets.kt

Java
Android

// Update one field, creating the document if it does not already exist.
Map<String, Object> data = new HashMap<>();
data.put("capital", true);

db.collection("cities").document("BJ")
        .set(data, SetOptions.merge());
DocSnippets.java

Dart

// Update one field, creating the document if it does not already exist.
final data = {"capital": true};

db.collection("cities").doc("BJ").set(data, SetOptions(merge: true));
firestore.dart

Java

// asynchronously update doc, create the document if missing
Map<String, Object> update = new HashMap<>();
update.put("capital", true);

ApiFuture<WriteResult> writeResult =
    db.collection("cities").document("BJ").set(update, SetOptions.merge());
// ...
System.out.println("Update time : " + writeResult.get().getUpdateTime());
ManageDataSnippets.java

Python

city_ref = db.collection("cities").document("BJ")

city_ref.set({"capital": True}, merge=True)
snippets.py

Python
(Async)

city_ref = db.collection("cities").document("BJ")

await city_ref.set({"capital": True}, merge=True)
snippets.py

C++

db->Collection("cities").Document("BJ").Set(
    {{"capital", FieldValue::Boolean(true)}}, SetOptions::Merge());
snippets.cpp

Node.js

const cityRef = db.collection('cities').doc('BJ');

const res = await cityRef.set({
  capital: true
}, { merge: true });
index.js

Go

import (
	"context"
	"log"

	"cloud.google.com/go/firestore"
)

func updateDocCreateIfMissing(ctx context.Context, client *firestore.Client) error {
	_, err := client.Collection("cities").Doc("BJ").Set(ctx, map[string]interface{}{
		"capital": true,
	}, firestore.MergeAll)

	if err != nil {
		// Handle any errors in an appropriate way, such as returning them.
		log.Printf("An error has occurred: %s", err)
	}

	return err
}
save_data_set_doc_upsert.go

PHP

PHP

Richten Sie Standardanmeldedaten für Anwendungen ein, um sich bei Firestore zu authentifizieren. Weitere Informationen finden Sie unter Authentifizierung für eine lokale Entwicklungsumgebung einrichten.

$cityRef = $db->collection('samples/php/cities')->document('BJ');
$cityRef->set([
    'capital' => true
], ['merge' => true]);

Einheit

DocumentReference docRef = db.Collection("cities").Document("LA");
Dictionary<string, object> update = new Dictionary<string, object>
{
	{ "capital", false }
};
docRef.SetAsync(update, SetOptions.MergeAll);

C#

DocumentReference docRef = db.Collection("cities").Document("LA");
Dictionary<string, object> update = new Dictionary<string, object>
{
    { "capital", false }
};
await docRef.SetAsync(update, SetOptions.MergeAll);
Program.cs

Ruby

city_ref = firestore.doc "#{collection_path}/LA"
city_ref.set({ capital: false }, merge: true)
add_data.rb

Wenn Sie nicht sicher sind, ob das Dokument vorhanden ist, legen Sie die Option zum Zusammenführen der neuen Daten mit einem vorhandenen Dokument fest, um das Überschreiben ganzer Dokumente zu vermeiden. Für Dokumente, die Karten enthalten, wenn Sie einen Satz mit einem Feld angeben, das ein Leere Karte wird das Kartenfeld des Zieldokuments überschrieben.

Datentypen

Mit Firestore können Sie eine Vielzahl von Datentypen innerhalb eines Dokuments schreiben, einschließlich Strings, boolescher Ausdrücke, Zahlen, Datumsangaben, der Null sowie verschachtelter Arrays und Objekte. Firestore speichert Zahlen immer als Double-Werte, unabhängig davon, welche Art von Zahlen Sie in Ihrem Code verwenden.

Webversion 9

Weitere Informationen zur modularen Web API, die durch Tree-Shaking optimiert werden kann, und zum Upgrade von der API mit Namensraum.

import { doc, setDoc, Timestamp } from "firebase/firestore"; 

const docData = {
    stringExample: "Hello world!",
    booleanExample: true,
    numberExample: 3.14159265,
    dateExample: Timestamp.fromDate(new Date("December 10, 1815")),
    arrayExample: [5, true, "hello"],
    nullExample: null,
    objectExample: {
        a: 5,
        b: {
            nested: "foo"
        }
    }
};
await setDoc(doc(db, "data", "one"), docData);
data_types.js

Webversion 8

Informationen zur baumrüttbaren modularen Web API und Upgrade von die Namespace-API.

var docData = {
    stringExample: "Hello world!",
    booleanExample: true,
    numberExample: 3.14159265,
    dateExample: firebase.firestore.Timestamp.fromDate(new Date("December 10, 1815")),
    arrayExample: [5, true, "hello"],
    nullExample: null,
    objectExample: {
        a: 5,
        b: {
            nested: "foo"
        }
    }
};
db.collection("data").doc("one").set(docData).then(() => {
    console.log("Document successfully written!");
});
test.firestore.js

Swift

Hinweis: Dieses Produkt nicht ist auf WatchOS- und App Clip-Zielen verfügbar.

let docData: [String: Any] = [
  "stringExample": "Hello world!",
  "booleanExample": true,
  "numberExample": 3.14159265,
  "dateExample": Timestamp(date: Date()),
  "arrayExample": [5, true, "hello"],
  "nullExample": NSNull(),
  "objectExample": [
    "a": 5,
    "b": [
      "nested": "foo"
    ]
  ]
]
do {
  try await db.collection("data").document("one").setData(docData)
  print("Document successfully written!")
} catch {
  print("Error writing document: \(error)")
}
ViewController.swift

Objective-C

Hinweis: Dieses Produkt nicht ist auf WatchOS- und App Clip-Zielen verfügbar.

NSDictionary *docData = @{
  @"stringExample": @"Hello world!",
  @"booleanExample": @YES,
  @"numberExample": @3.14,
  @"dateExample": [FIRTimestamp timestampWithDate:[NSDate date]],
  @"arrayExample": @[@5, @YES, @"hello"],
  @"nullExample": [NSNull null],
  @"objectExample": @{
    @"a": @5,
    @"b": @{
      @"nested": @"foo"
    }
  }
};

[[[self.db collectionWithPath:@"data"] documentWithPath:@"one"] setData:docData
    completion:^(NSError * _Nullable error) {
      if (error != nil) {
        NSLog(@"Error writing document: %@", error);
      } else {
        NSLog(@"Document successfully written!");
      }
    }];
ViewController.m

Kotlin+KTX
Android

val docData = hashMapOf(
    "stringExample" to "Hello world!",
    "booleanExample" to true,
    "numberExample" to 3.14159265,
    "dateExample" to Timestamp(Date()),
    "listExample" to arrayListOf(1, 2, 3),
    "nullExample" to null,
)

val nestedData = hashMapOf(
    "a" to 5,
    "b" to true,
)

docData["objectExample"] = nestedData

db.collection("data").document("one")
    .set(docData)
    .addOnSuccessListener { Log.d(TAG, "DocumentSnapshot successfully written!") }
    .addOnFailureListener { e -> Log.w(TAG, "Error writing document", e) }
DocSnippets.kt

Java
Android

Map<String, Object> docData = new HashMap<>();
docData.put("stringExample", "Hello world!");
docData.put("booleanExample", true);
docData.put("numberExample", 3.14159265);
docData.put("dateExample", new Timestamp(new Date()));
docData.put("listExample", Arrays.asList(1, 2, 3));
docData.put("nullExample", null);

Map<String, Object> nestedData = new HashMap<>();
nestedData.put("a", 5);
nestedData.put("b", true);

docData.put("objectExample", nestedData);

db.collection("data").document("one")
        .set(docData)
        .addOnSuccessListener(new OnSuccessListener<Void>() {
            @Override
            public void onSuccess(Void aVoid) {
                Log.d(TAG, "DocumentSnapshot successfully written!");
            }
        })
        .addOnFailureListener(new OnFailureListener() {
            @Override
            public void onFailure(@NonNull Exception e) {
                Log.w(TAG, "Error writing document", e);
            }
        });
DocSnippets.java

Dart

final docData = {
  "stringExample": "Hello world!",
  "booleanExample": true,
  "numberExample": 3.14159265,
  "dateExample": Timestamp.now(),
  "listExample": [1, 2, 3],
  "nullExample": null
};

final nestedData = {
  "a": 5,
  "b": true,
};

docData["objectExample"] = nestedData;

db
    .collection("data")
    .doc("one")
    .set(docData)
    .onError((e, _) => print("Error writing document: $e"));
firestore.dart

Java

Map<String, Object> docData = new HashMap<>();
docData.put("stringExample", "Hello, World");
docData.put("booleanExample", false);
docData.put("numberExample", 3.14159265);
docData.put("nullExample", null);

ArrayList<Object> arrayExample = new ArrayList<>();
Collections.addAll(arrayExample, 5L, true, "hello");
docData.put("arrayExample", arrayExample);

Map<String, Object> objectExample = new HashMap<>();
objectExample.put("a", 5L);
objectExample.put("b", true);

docData.put("objectExample", objectExample);

ApiFuture<WriteResult> future = db.collection("data").document("one").set(docData);
System.out.println("Update time : " + future.get().getUpdateTime());
ManageDataSnippets.java

Python

data = {
    "stringExample": "Hello, World!",
    "booleanExample": True,
    "numberExample": 3.14159265,
    "dateExample": datetime.datetime.now(tz=datetime.timezone.utc),
    "arrayExample": [5, True, "hello"],
    "nullExample": None,
    "objectExample": {"a": 5, "b": True},
}

db.collection("data").document("one").set(data)
snippets.py

Python
(Async)

data = {
    "stringExample": "Hello, World!",
    "booleanExample": True,
    "numberExample": 3.14159265,
    "dateExample": datetime.datetime.now(tz=datetime.timezone.utc),
    "arrayExample": [5, True, "hello"],
    "nullExample": None,
    "objectExample": {"a": 5, "b": True},
}

await db.collection("data").document("one").set(data)
snippets.py

C++

MapFieldValue doc_data{
    {"stringExample", FieldValue::String("Hello world!")},
    {"booleanExample", FieldValue::Boolean(true)},
    {"numberExample", FieldValue::Double(3.14159265)},
    {"dateExample", FieldValue::Timestamp(Timestamp::Now())},
    {"arrayExample", FieldValue::Array({FieldValue::Integer(1),
                                        FieldValue::Integer(2),
                                        FieldValue::Integer(3)})},
    {"nullExample", FieldValue::Null()},
    {"objectExample",
     FieldValue::Map(
         {{"a", FieldValue::Integer(5)},
          {"b", FieldValue::Map(
                    {{"nested", FieldValue::String("foo")}})}})},
};

db->Collection("data").Document("one").Set(doc_data).OnCompletion(
    [](const Future<void>& future) {
      if (future.error() == Error::kErrorOk) {
        std::cout << "DocumentSnapshot successfully written!" << std::endl;
      } else {
        std::cout << "Error writing document: " << future.error_message()
                  << std::endl;
      }
    });
snippets.cpp

Node.js

const data = {
  stringExample: 'Hello, World!',
  booleanExample: true,
  numberExample: 3.14159265,
  dateExample: Timestamp.fromDate(new Date('December 10, 1815')),
  arrayExample: [5, true, 'hello'],
  nullExample: null,
  objectExample: {
    a: 5,
    b: true
  }
};

const res = await db.collection('data').doc('one').set(data);
index.js

Go

import (
	"context"
	"log"
	"time"

	"cloud.google.com/go/firestore"
)

func addDocDataTypes(ctx context.Context, client *firestore.Client) error {
	doc := make(map[string]interface{})
	doc["stringExample"] = "Hello world!"
	doc["booleanExample"] = true
	doc["numberExample"] = 3.14159265
	doc["dateExample"] = time.Now()
	doc["arrayExample"] = []interface{}{5, true, "hello"}
	doc["nullExample"] = nil
	doc["objectExample"] = map[string]interface{}{
		"a": 5,
		"b": true,
	}

	_, err := client.Collection("data").Doc("one").Set(ctx, doc)
	if err != nil {
		// Handle any errors in an appropriate way, such as returning them.
		log.Printf("An error has occurred: %s", err)
	}

	return err
}
save_data_set_from_map_nested.go

PHP

PHP

Richten Sie die Standardanmeldedaten für Anwendungen ein, um sich bei Firestore zu authentifizieren. Weitere Informationen finden Sie unter Authentifizierung für eine lokale Entwicklungsumgebung einrichten.

$data = [
    'stringExample' => 'Hello World',
    'booleanExample' => true,
    'numberExample' => 3.14159265,
    'dateExample' => new Timestamp(new DateTime()),
    'arrayExample' => array(5, true, 'hello'),
    'nullExample' => null,
    'objectExample' => ['a' => 5, 'b' => true],
    'documentReferenceExample' => $db->collection('samples/php/data')->document('two'),
];
$db->collection('samples/php/data')->document('one')->set($data);
printf('Set multiple data-type data for the one document in the data collection.' . PHP_EOL);

Einheit

DocumentReference docRef = db.Collection("data").Document("one");
Dictionary<string, object> docData = new Dictionary<string, object>
{
	{ "stringExample", "Hello World" },
	{ "booleanExample", false },
	{ "numberExample", 3.14159265 },
	{ "nullExample", null },
	{ "arrayExample", new List<object>() { 5, true, "Hello" } },
	{ "objectExample", new Dictionary<string, object>
		{
			{ "a", 5 },
			{ "b", true },
		}
	},
};

docRef.SetAsync(docData);

C#

DocumentReference docRef = db.Collection("data").Document("one");
Dictionary<string, object> docData = new Dictionary<string, object>
{
    { "stringExample", "Hello World" },
    { "booleanExample", false },
    { "numberExample", 3.14159265 },
    { "nullExample", null },
    { "arrayExample", new object[] { 5, true, "Hello" } },
    { "objectExample", new Dictionary<string, object>
        {
            { "a", 5 },
            { "b", true},
        }
    }
};

await docRef.SetAsync(docData);
Program.cs

Ruby

doc_ref = firestore.doc "#{collection_path}/one"

data = {
  stringExample:  "Hello, World!",
  booleanExample: true,
  numberExample:  3.14159265,
  dateExample:    DateTime.now,
  arrayExample:   [5, true, "hello"],
  nullExample:    nil,
  objectExample:  {
    a: 5,
    b: true
  }
}

doc_ref.set data
add_data.rb

Benutzerdefinierte Objekte

Die Verwendung von Map- oder Dictionary-Objekten zur Darstellung von Dokumenten unpraktisch. Daher unterstützt Firestore das Schreiben von Dokumenten mit benutzerdefinierten Klassen. Firestore konvertiert die Objekte in unterstützte Datentypen.

Mit benutzerdefinierten Klassen können Sie das ursprüngliche Beispiel so umschreiben:

Webversion 9

Informationen zur baumrüttbaren modularen Web API und Upgrade von die Namespace-API.

class City {
    constructor (name, state, country ) {
        this.name = name;
        this.state = state;
        this.country = country;
    }
    toString() {
        return this.name + ', ' + this.state + ', ' + this.country;
    }
}

// Firestore data converter
const cityConverter = {
    toFirestore: (city) => {
        return {
            name: city.name,
            state: city.state,
            country: city.country
            };
    },
    fromFirestore: (snapshot, options) => {
        const data = snapshot.data(options);
        return new City(data.name, data.state, data.country);
    }
};
city_custom_object.js

Webversion 8

Weitere Informationen zur modularen Web API, die durch Tree-Shaking optimiert werden kann, und zum Upgrade von der API mit Namensraum.

class City {
    constructor (name, state, country ) {
        this.name = name;
        this.state = state;
        this.country = country;
    }
    toString() {
        return this.name + ', ' + this.state + ', ' + this.country;
    }
}

// Firestore data converter
var cityConverter = {
    toFirestore: function(city) {
        return {
            name: city.name,
            state: city.state,
            country: city.country
            };
    },
    fromFirestore: function(snapshot, options){
        const data = snapshot.data(options);
        return new City(data.name, data.state, data.country);
    }
};
test.firestore.js

Swift

Hinweis: Dieses Produkt nicht ist auf WatchOS- und App Clip-Zielen verfügbar.

public struct City: Codable {

  let name: String
  let state: String?
  let country: String?
  let isCapital: Bool?
  let population: Int64?

  enum CodingKeys: String, CodingKey {
    case name
    case state
    case country
    case isCapital = "capital"
    case population
  }

}
ViewController.swift

Objective-C

Hinweis: Dieses Produkt nicht ist auf WatchOS- und App Clip-Zielen verfügbar.

// This isn't supported in Objective-C.
  

Kotlin+KTX
Android

data class City(
    val name: String? = null,
    val state: String? = null,
    val country: String? = null,
    @field:JvmField // use this annotation if your Boolean field is prefixed with 'is'
    val isCapital: Boolean? = null,
    val population: Long? = null,
    val regions: List<String>? = null,
)
DocSnippets.kt

Java
Android

Jede benutzerdefinierte Klasse muss über einen öffentlichen Konstruktor verfügen, der keine Argumente entgegennimmt. Darüber hinaus muss die Klasse für jedes Attribut einen öffentlichen Getter enthalten.

public class City {


    private String name;
    private String state;
    private String country;
    private boolean capital;
    private long population;
    private List<String> regions;

    public City() {}

    public City(String name, String state, String country, boolean capital, long population, List<String> regions) {
        // ...
    }

    public String getName() {
        return name;
    }

    public String getState() {
        return state;
    }

    public String getCountry() {
        return country;
    }

    public boolean isCapital() {
        return capital;
    }

    public long getPopulation() {
        return population;
    }

    public List<String> getRegions() {
        return regions;
    }

}
DocSnippets.java

Dart

class City {
  final String? name;
  final String? state;
  final String? country;
  final bool? capital;
  final int? population;
  final List<String>? regions;

  City({
    this.name,
    this.state,
    this.country,
    this.capital,
    this.population,
    this.regions,
  });

  factory City.fromFirestore(
    DocumentSnapshot<Map<String, dynamic>> snapshot,
    SnapshotOptions? options,
  ) {
    final data = snapshot.data();
    return City(
      name: data?['name'],
      state: data?['state'],
      country: data?['country'],
      capital: data?['capital'],
      population: data?['population'],
      regions:
          data?['regions'] is Iterable ? List.from(data?['regions']) : null,
    );
  }

  Map<String, dynamic> toFirestore() {
    return {
      if (name != null) "name": name,
      if (state != null) "state": state,
      if (country != null) "country": country,
      if (capital != null) "capital": capital,
      if (population != null) "population": population,
      if (regions != null) "regions": regions,
    };
  }
}
firestore_add_data_custom_objects_snippet.dart

Java

public City() {
  // Must have a public no-argument constructor
}

// Initialize all fields of a city
public City(
    String name,
    String state,
    String country,
    Boolean capital,
    Long population,
    List<String> regions) {
  this.name = name;
  this.state = state;
  this.country = country;
  this.capital = capital;
  this.population = population;
  this.regions = regions;
}
City.java

Python

class City:
    def __init__(self, name, state, country, capital=False, population=0, regions=[]):
        self.name = name
        self.state = state
        self.country = country
        self.capital = capital
        self.population = population
        self.regions = regions

    @staticmethod
    def from_dict(source):
        # ...

    def to_dict(self):
        # ...

    def __repr__(self):
        return f"City(\
                name={self.name}, \
                country={self.country}, \
                population={self.population}, \
                capital={self.capital}, \
                regions={self.regions}\
            )"

snippets.py

Python
(Async)

class City:
    def __init__(self, name, state, country, capital=False, population=0, regions=[]):
        self.name = name
        self.state = state
        self.country = country
        self.capital = capital
        self.population = population
        self.regions = regions

    @staticmethod
    def from_dict(source):
        # ...

    def to_dict(self):
        # ...

    def __repr__(self):
        return f"City(\
                name={self.name}, \
                country={self.country}, \
                population={self.population}, \
                capital={self.capital}, \
                regions={self.regions}\
            )"

snippets.py

C++

// This is not yet supported.

Node.js

// Node.js uses JavaScript objects

Go

// City represents a city.
type City struct {
	Name       string   `firestore:"name,omitempty"`
	State      string   `firestore:"state,omitempty"`
	Country    string   `firestore:"country,omitempty"`
	Capital    bool     `firestore:"capital,omitempty"`
	Population int64    `firestore:"population,omitempty"`
	Density    int64    `firestore:"density,omitempty"`
	Regions    []string `firestore:"regions,omitempty"`
}
custom_type_definition.go

PHP

PHP

Richten Sie Standardanmeldedaten für Anwendungen ein, um sich bei Firestore zu authentifizieren. Weitere Informationen finden Sie unter Authentifizierung für eine lokale Entwicklungsumgebung einrichten.

class City
{
    /** @var string */
    public $name;
    /** @var string */
    public $state;
    /** @var string */
    public $country;
    /** @var bool */
    public $capital;
    /** @var int */
    public $population;
    /** @var array<string> */
    public $regions;

    /**
     * @param array<string> $regions
     */
    public function __construct(
        string $name,
        string $state,
        string $country,
        bool $capital = false,
        int $population = 0,
        array $regions = []
    ) {
        $this->name = $name;
        $this->state = $state;
        $this->country = $country;
        $this->capital = $capital;
        $this->population = $population;
        $this->regions = $regions;
    }

    /**
     * @param array<mixed> $source
     */
    public static function fromArray(array $source): City
    {
        // implementation of fromArray is excluded for brevity
        # ...
    }

    /**
     * @return array<mixed>
     */
    public function toArray(): array
    {
        // implementation of toArray is excluded for brevity
        # ...
    }

    public function __toString()
    {
        // implementation of __toString is excluded for brevity
        # ...
    }
}

Einheit

[FirestoreData]
public class City
{
	[FirestoreProperty]
	public string Name { get; set; }

	[FirestoreProperty]
	public string State { get; set; }

	[FirestoreProperty]
	public string Country { get; set; }

	[FirestoreProperty]
	public bool Capital { get; set; }

	[FirestoreProperty]
	public long Population { get; set; }
}

C#

[FirestoreData]
public class City
{
    [FirestoreProperty]
    public string Name { get; set; }

    [FirestoreProperty]
    public string State { get; set; }

    [FirestoreProperty]
    public string Country { get; set; }

    [FirestoreProperty]
    public bool Capital { get; set; }

    [FirestoreProperty]
    public long Population { get; set; }
}
Program.cs

Ruby

// This isn't supported in Ruby

Webversion 9

Informationen zur baumrüttbaren modularen Web API und Upgrade von die Namespace-API.

import { doc, setDoc } from "firebase/firestore"; 

// Set with cityConverter
const ref = doc(db, "cities", "LA").withConverter(cityConverter);
await setDoc(ref, new City("Los Angeles", "CA", "USA"));
set_custom_object.js

Webversion 8

Informationen zur baumrüttbaren modularen Web API und Upgrade von die Namespace-API.

// Set with cityConverter
db.collection("cities").doc("LA")
  .withConverter(cityConverter)
  .set(new City("Los Angeles", "CA", "USA"));
test.firestore.js

Swift

Hinweis: Dieses Produkt nicht ist auf WatchOS- und App Clip-Zielen verfügbar.

let city = City(name: "Los Angeles",
                state: "CA",
                country: "USA",
                isCapital: false,
                population: 5000000)

do {
  try db.collection("cities").document("LA").setData(from: city)
} catch let error {
  print("Error writing city to Firestore: \(error)")
}
ViewController.swift

Objective-C

Hinweis: Dieses Produkt nicht ist auf WatchOS- und App Clip-Zielen verfügbar.

// This isn't supported in Objective-C.
  

Kotlin+KTX
Android

val city = City(
    "Los Angeles",
    "CA",
    "USA",
    false,
    5000000L,
    listOf("west_coast", "socal"),
)
db.collection("cities").document("LA").set(city)
DocSnippets.kt

Java
Android

City city = new City("Los Angeles", "CA", "USA",
        false, 5000000L, Arrays.asList("west_coast", "sorcal"));
db.collection("cities").document("LA").set(city);
DocSnippets.java

Dart

final city = City(
  name: "Los Angeles",
  state: "CA",
  country: "USA",
  capital: false,
  population: 5000000,
  regions: ["west_coast", "socal"],
);
final docRef = db
    .collection("cities")
    .withConverter(
      fromFirestore: City.fromFirestore,
      toFirestore: (City city, options) => city.toFirestore(),
    )
    .doc("LA");
await docRef.set(city);
firestore.dart

Java

City city =
    new City("Los Angeles", "CA", "USA", false, 3900000L, Arrays.asList("west_coast", "socal"));
ApiFuture<WriteResult> future = db.collection("cities").document("LA").set(city);
// block on response if required
System.out.println("Update time : " + future.get().getUpdateTime());
ManageDataSnippets.java

Python

city = City(name="Los Angeles", state="CA", country="USA")
db.collection("cities").document("LA").set(city.to_dict())
snippets.py

Python
(Async)

city = City(name="Los Angeles", state="CA", country="USA")
await db.collection("cities").document("LA").set(city.to_dict())
snippets.py

C++

// This is not yet supported.

Node.js

// Node.js uses JavaScript objects

Go

import (
	"context"
	"log"

	"cloud.google.com/go/firestore"
)

func addDocAsEntity(ctx context.Context, client *firestore.Client) error {
	city := City{
		Name:    "Los Angeles",
		Country: "USA",
	}
	_, err := client.Collection("cities").Doc("LA").Set(ctx, city)
	if err != nil {
		// Handle any errors in an appropriate way, such as returning them.
		log.Printf("An error has occurred: %s", err)
	}

	return err
}
save_data_set_from_custom_type.go

PHP

// This isn't supported in PHP.

Unity

DocumentReference docRef = db.Collection("cities").Document("LA");
City city = new City
{
	Name = "Los Angeles",
	State = "CA",
	Country = "USA",
	Capital = false,
	Population = 3900000L
};
docRef.SetAsync(city);

C#

DocumentReference docRef = db.Collection("cities").Document("LA");
City city = new City
{
    Name = "Los Angeles",
    State = "CA",
    Country = "USA",
    Capital = false,
    Population = 3900000L
};
await docRef.SetAsync(city);
Program.cs

Ruby

// This isn't supported in Ruby.

Dokument hinzufügen

Wenn Sie set() zum Erstellen eines Dokuments verwenden, müssen Sie eine ID für die zu erstellendes Dokument, wie im folgenden Beispiel gezeigt:

Webversion 9

Informationen zur baumrüttbaren modularen Web API und Upgrade von die Namespace-API.

import { doc, setDoc } from "firebase/firestore"; 

await setDoc(doc(db, "cities", "new-city-id"), data);
cities_document_set.js

Webversion 8

Informationen zur baumrüttbaren modularen Web API und Upgrade von die Namespace-API.

db.collection("cities").doc("new-city-id").set(data);
test.firestore.js

Swift

Hinweis: Dieses Produkt nicht ist auf WatchOS- und App Clip-Zielen verfügbar.

db.collection("cities").document("new-city-id").setData(data)
ViewController.swift

Objective-C

Hinweis: Dieses Produkt nicht ist auf WatchOS- und App Clip-Zielen verfügbar.

[[[self.db collectionWithPath:@"cities"] documentWithPath:@"new-city-id"]
    setData:data];
ViewController.m

Kotlin+KTX
Android

db.collection("cities").document("new-city-id").set(data)
DocSnippets.kt

Java
Android

db.collection("cities").document("new-city-id").set(data);
DocSnippets.java

Dart

db.collection("cities").doc("new-city-id").set({"name": "Chicago"});
firestore.dart

Java

db.collection("cities").document("new-city-id").set(data);
ManageDataSnippets.java

Python

db.collection("cities").document("new-city-id").set(data)
snippets.py

Python
(Async)

await db.collection("cities").document("new-city-id").set(data)
snippets.py

C++

db->Collection("cities").Document("SF").Set({/*some data*/});
snippets.cpp

Node.js

await db.collection('cities').doc('new-city-id').set(data);
index.js

Go

import (
	"context"
	"log"

	"cloud.google.com/go/firestore"
)

func addDocWithID(ctx context.Context, client *firestore.Client) error {
	var data = make(map[string]interface{})

	_, err := client.Collection("cities").Doc("new-city-id").Set(ctx, data)
	if err != nil {
		// Handle any errors in an appropriate way, such as returning them.
		log.Printf("An error has occurred: %s", err)
	}

	return err
}
save_data_set_id_specified.go

PHP

PHP

Richten Sie Standardanmeldedaten für Anwendungen ein, um sich bei Firestore zu authentifizieren. Weitere Informationen finden Sie unter Authentifizierung für eine lokale Entwicklungsumgebung einrichten.

$db->collection('samples/php/cities')->document('new-city-id')->set($data);

Einheit

db.Collection("cities").Document("new-city-id").SetAsync(city);

C#

await db.Collection("cities").Document("new-city-id").SetAsync(city);
Program.cs

Ruby

city_ref = firestore.doc "#{collection_path}/new-city-id"
city_ref.set data
add_data.rb

Wenn für das Dokument keine aussagekräftige ID vorhanden ist, kann Firestore automatisch eine ID für Sie generieren. Sie können die folgenden sprachspezifischen add()-Methoden:

Webversion 9

Verwenden Sie die Methode addDoc():

import { collection, addDoc } from "firebase/firestore"; 

// Add a new document with a generated id.
const docRef = await addDoc(collection(db, "cities"), {
  name: "Tokyo",
  country: "Japan"
});
console.log("Document written with ID: ", docRef.id);
add_document.js

Webversion 8

Verwenden Sie die Methode add():

// Add a new document with a generated id.
db.collection("cities").add({
    name: "Tokyo",
    country: "Japan"
})
.then((docRef) => {
    console.log("Document written with ID: ", docRef.id);
})
.catch((error) => {
    console.error("Error adding document: ", error);
});
test.firestore.js

Swift

Verwenden Sie die Methode addDocument():

Hinweis: Dieses Produkt nicht ist auf WatchOS- und App Clip-Zielen verfügbar.

// Add a new document with a generated id.
do {
  let ref = try await db.collection("cities").addDocument(data: [
    "name": "Tokyo",
    "country": "Japan"
  ])
  print("Document added with ID: \(ref.documentID)")
} catch {
  print("Error adding document: \(error)")
}
ViewController.swift

Objective-C

Verwenden Sie die Methode addDocumentWithData::

Hinweis: Dieses Produkt nicht ist auf WatchOS- und App Clip-Zielen verfügbar.

// Add a new document with a generated id.
__block FIRDocumentReference *ref =
    [[self.db collectionWithPath:@"cities"] addDocumentWithData:@{
      @"name": @"Tokyo",
      @"country": @"Japan"
    } completion:^(NSError * _Nullable error) {
      if (error != nil) {
        NSLog(@"Error adding document: %@", error);
      } else {
        NSLog(@"Document added with ID: %@", ref.documentID);
      }
    }];
ViewController.m

Kotlin+KTX
Android

Verwenden Sie die Methode add():

// Add a new document with a generated id.
val data = hashMapOf(
    "name" to "Tokyo",
    "country" to "Japan",
)

db.collection("cities")
    .add(data)
    .addOnSuccessListener { documentReference ->
        Log.d(TAG, "DocumentSnapshot written with ID: ${documentReference.id}")
    }
    .addOnFailureListener { e ->
        Log.w(TAG, "Error adding document", e)
    }
DocSnippets.kt

Java
Android

Verwenden Sie die Methode add():

// Add a new document with a generated id.
Map<String, Object> data = new HashMap<>();
data.put("name", "Tokyo");
data.put("country", "Japan");

db.collection("cities")
        .add(data)
        .addOnSuccessListener(new OnSuccessListener<DocumentReference>() {
            @Override
            public void onSuccess(DocumentReference documentReference) {
                Log.d(TAG, "DocumentSnapshot written with ID: " + documentReference.getId());
            }
        })
        .addOnFailureListener(new OnFailureListener() {
            @Override
            public void onFailure(@NonNull Exception e) {
                Log.w(TAG, "Error adding document", e);
            }
        });
DocSnippets.java

Dart

Verwenden Sie die Methode add():

// Add a new document with a generated id.
final data = {"name": "Tokyo", "country": "Japan"};

db.collection("cities").add(data).then((documentSnapshot) =>
    print("Added Data with ID: ${documentSnapshot.id}"));
firestore.dart

Java

Verwenden Sie die Methode add():

// Add document data with auto-generated id.
Map<String, Object> data = new HashMap<>();
data.put("name", "Tokyo");
data.put("country", "Japan");
ApiFuture<DocumentReference> addedDocRef = db.collection("cities").add(data);
System.out.println("Added document with ID: " + addedDocRef.get().getId());
ManageDataSnippets.java

Python

Verwenden Sie die Methode add():

city = {"name": "Tokyo", "country": "Japan"}
update_time, city_ref = db.collection("cities").add(city)
print(f"Added document with id {city_ref.id}")
snippets.py

Python
(Async)

Verwenden Sie die Methode add():

city = City(name="Tokyo", state=None, country="Japan")
await db.collection("cities").add(city.to_dict())
snippets.py

C++

Verwenden Sie die Methode Add():

db->Collection("cities").Add({/*some data*/});
snippets.cpp

Node.js

Verwenden Sie die Methode add():

// Add a new document with a generated id.
const res = await db.collection('cities').add({
  name: 'Tokyo',
  country: 'Japan'
});

console.log('Added document with ID: ', res.id);
index.js

Go

Verwenden Sie die Methode Add():

import (
	"context"
	"log"

	"cloud.google.com/go/firestore"
)

func addDocWithoutID(ctx context.Context, client *firestore.Client) error {
	_, _, err := client.Collection("cities").Add(ctx, map[string]interface{}{
		"name":    "Tokyo",
		"country": "Japan",
	})
	if err != nil {
		// Handle any errors in an appropriate way, such as returning them.
		log.Printf("An error has occurred: %s", err)
	}

	return err
}
save_data_set_id_random_collection.go

PHP

Verwenden Sie die Methode add():

PHP

Richten Sie Standardanmeldedaten für Anwendungen ein, um sich bei Firestore zu authentifizieren. Weitere Informationen finden Sie unter Authentifizierung für eine lokale Entwicklungsumgebung einrichten.

$data = [
    'name' => 'Tokyo',
    'country' => 'Japan'
];
$addedDocRef = $db->collection('samples/php/cities')->add($data);
printf('Added document with ID: %s' . PHP_EOL, $addedDocRef->id());

Einheit

Verwenden Sie die Methode AddAsync():

Dictionary<string, object> city = new Dictionary<string, object>
{
	{ "Name", "Tokyo" },
	{ "Country", "Japan" }
};
db.Collection("cities").AddAsync(city).ContinueWithOnMainThread(task => {
	DocumentReference addedDocRef = task.Result;
	Debug.Log(String.Format("Added document with ID: {0}.", addedDocRef.Id));
});

C#

Verwenden Sie die Methode AddAsync():

Dictionary<string, object> city = new Dictionary<string, object>
{
    { "Name", "Tokyo" },
    { "Country", "Japan" }
};
DocumentReference addedDocRef = await db.Collection("cities").AddAsync(city);
Console.WriteLine("Added document with ID: {0}.", addedDocRef.Id);
Program.cs

Ruby

Verwenden Sie die Methode add():

data = {
  name:    "Tokyo",
  country: "Japan"
}

cities_ref = firestore.col collection_path

added_doc_ref = cities_ref.add data
puts "Added document with ID: #{added_doc_ref.document_id}."
add_data.rb

Wichtig: Anders als bei „Push-IDs“ in der Firebase Realtime Database Automatisch von Firestore generierte IDs bieten keine automatische Sortierung. Wenn Sie Ihre Dokumente nach dem Erstellungsdatum sortieren möchten, speichern Sie einen Zeitstempel als in den Dokumenten.

In manchen Fällen kann es nützlich sein, eine Dokumentenreferenz mit einer automatisch generierten ID zu erstellen und die Referenz später zu verwenden. Für diesen Anwendungsfall können Sie doc() so:

Webversion 9

Informationen zur baumrüttbaren modularen Web API und Upgrade von die Namespace-API.

import { collection, doc, setDoc } from "firebase/firestore"; 

// Add a new document with a generated id
const newCityRef = doc(collection(db, "cities"));

// later...
await setDoc(newCityRef, data);
new_document.js

Webversion 8

Informationen zur baumrüttbaren modularen Web API und Upgrade von die Namespace-API.

// Add a new document with a generated id.
var newCityRef = db.collection("cities").doc();

// later...
newCityRef.set(data);
test.firestore.js

Swift

Hinweis: Dieses Produkt nicht ist auf WatchOS- und App Clip-Zielen verfügbar.

let newCityRef = db.collection("cities").document()

// later...
newCityRef.setData([
  // ...
])
ViewController.swift

Objective-C

Hinweis: Dieses Produkt nicht ist auf WatchOS- und App Clip-Zielen verfügbar.

FIRDocumentReference *newCityRef = [[self.db collectionWithPath:@"cities"] documentWithAutoID];
// later...
[newCityRef setData:@{ /* ... */ }];
ViewController.m

Kotlin+KTX
Android

val data = HashMap<String, Any>()

val newCityRef = db.collection("cities").document()

// Later...
newCityRef.set(data)
DocSnippets.kt

Java
Android

Map<String, Object> data = new HashMap<>();

DocumentReference newCityRef = db.collection("cities").document();

// Later...
newCityRef.set(data);
DocSnippets.java

Dart

// Add a new document with a generated id.
final data = <String, dynamic>{};

final newCityRef = db.collection("cities").doc();

// Later...
newCityRef.set(data);
firestore.dart

Java

// Add document data after generating an id.
DocumentReference addedDocRef = db.collection("cities").document();
System.out.println("Added document with ID: " + addedDocRef.getId());

// later...
ApiFuture<WriteResult> writeResult = addedDocRef.set(data);
ManageDataSnippets.java

Python

new_city_ref = db.collection("cities").document()

# later...
new_city_ref.set(
    {
        # ...
    }
)
snippets.py

Python
(Async)

new_city_ref = db.collection("cities").document()

# later...
await new_city_ref.set(
    {
        # ...
    }
)
snippets.py

C++

DocumentReference new_city_ref = db->Collection("cities").Document();
snippets.cpp

Node.js

const newCityRef = db.collection('cities').doc();

// Later...
const res = await newCityRef.set({
  // ...
});
index.js

Go

import (
	"context"
	"log"

	"cloud.google.com/go/firestore"
)

func addDocAfterAutoGeneratedID(ctx context.Context, client *firestore.Client) error {
	data := City{
		Name:    "Sydney",
		Country: "Australia",
	}

	ref := client.Collection("cities").NewDoc()

	// later...
	_, err := ref.Set(ctx, data)
	if err != nil {
		// Handle any errors in an appropriate way, such as returning them.
		log.Printf("An error has occurred: %s", err)
	}

	return err
}
save_data_set_id_random_document_ref.go

PHP

PHP

Richten Sie Standardanmeldedaten für Anwendungen ein, um sich bei Firestore zu authentifizieren. Weitere Informationen finden Sie unter Authentifizierung für eine lokale Entwicklungsumgebung einrichten.

$addedDocRef = $db->collection('samples/php/cities')->newDocument();
printf('Added document with ID: %s' . PHP_EOL, $addedDocRef->id());
$addedDocRef->set($data);

Einheit

DocumentReference addedDocRef = db.Collection("cities").Document();
Debug.Log(String.Format("Added document with ID: {0}.", addedDocRef.Id));
addedDocRef.SetAsync(city).ContinueWithOnMainThread(task => {
	Debug.Log(String.Format(
		"Added data to the {0} document in the cities collection.", addedDocRef.Id));
});

C#

DocumentReference addedDocRef = db.Collection("cities").Document();
Console.WriteLine("Added document with ID: {0}.", addedDocRef.Id);
await addedDocRef.SetAsync(city);
Program.cs

Ruby

cities_ref = firestore.col collection_path

added_doc_ref = cities_ref.doc
puts "Added document with ID: #{added_doc_ref.document_id}."

added_doc_ref.set data
add_data.rb

Im Back-End sind .add(...) und .doc().set(...) gleichwertig, sodass Sie Folgendes verwenden können: eine der beiden Optionen.

Dokument aktualisieren

Um einige Felder eines Dokuments zu aktualisieren, ohne das gesamte Dokument zu überschreiben, verwenden Sie die folgenden sprachspezifischen update()-Methoden:

Webversion 9

Verwenden Sie die Methode updateDoc():

import { doc, updateDoc } from "firebase/firestore";

const washingtonRef = doc(db, "cities", "DC");

// Set the "capital" field of the city 'DC'
await updateDoc(washingtonRef, {
  capital: true
});
update_document.js

Webversion 8

Verwenden Sie die Methode update():

var washingtonRef = db.collection("cities").doc("DC");

// Set the "capital" field of the city 'DC'
return washingtonRef.update({
    capital: true
})
.then(() => {
    console.log("Document successfully updated!");
})
.catch((error) => {
    // The document probably doesn't exist.
    console.error("Error updating document: ", error);
});
test.firestore.js

Swift

Verwenden Sie die Methode updateData():

Hinweis: Dieses Produkt nicht ist auf WatchOS- und App Clip-Zielen verfügbar.

let washingtonRef = db.collection("cities").document("DC")

// Set the "capital" field of the city 'DC'
do {
  try await washingtonRef.updateData([
    "capital": true
  ])
  print("Document successfully updated")
} catch {
  print("Error updating document: \(error)")
}
ViewController.swift

Objective-C

Verwenden Sie die Methode updateData::

Hinweis: Dieses Produkt nicht ist auf WatchOS- und App Clip-Zielen verfügbar.

FIRDocumentReference *washingtonRef =
    [[self.db collectionWithPath:@"cities"] documentWithPath:@"DC"];
// Set the "capital" field of the city
[washingtonRef updateData:@{
  @"capital": @YES
} completion:^(NSError * _Nullable error) {
  if (error != nil) {
    NSLog(@"Error updating document: %@", error);
  } else {
    NSLog(@"Document successfully updated");
  }
}];
ViewController.m

Kotlin+KTX
Android

Verwenden Sie die Methode update():

val washingtonRef = db.collection("cities").document("DC")

// Set the "isCapital" field of the city 'DC'
washingtonRef
    .update("capital", true)
    .addOnSuccessListener { Log.d(TAG, "DocumentSnapshot successfully updated!") }
    .addOnFailureListener { e -> Log.w(TAG, "Error updating document", e) }
DocSnippets.kt

Java
Android

Verwenden Sie die Methode update():

DocumentReference washingtonRef = db.collection("cities").document("DC");

// Set the "isCapital" field of the city 'DC'
washingtonRef
        .update("capital", true)
        .addOnSuccessListener(new OnSuccessListener<Void>() {
            @Override
            public void onSuccess(Void aVoid) {
                Log.d(TAG, "DocumentSnapshot successfully updated!");
            }
        })
        .addOnFailureListener(new OnFailureListener() {
            @Override
            public void onFailure(@NonNull Exception e) {
                Log.w(TAG, "Error updating document", e);
            }
        });
DocSnippets.java

Dart

Verwenden Sie die Methode update():

final washingtonRef = db.collection("cites").doc("DC");
washingtonRef.update({"capital": true}).then(
    (value) => print("DocumentSnapshot successfully updated!"),
    onError: (e) => print("Error updating document $e"));
firestore.dart

Java

Verwenden Sie die Methode update():

// Update an existing document
DocumentReference docRef = db.collection("cities").document("DC");

// (async) Update one field
ApiFuture<WriteResult> future = docRef.update("capital", true);

// ...
WriteResult result = future.get();
System.out.println("Write result: " + result);
ManageDataSnippets.java

Python

Verwenden Sie die Methode update():

city_ref = db.collection("cities").document("DC")

# Set the capital field
city_ref.update({"capital": True})
snippets.py

Python
(Async)

Verwenden Sie die Methode update():

city_ref = db.collection("cities").document("DC")

# Set the capital field
await city_ref.update({"capital": True})
snippets.py

C++

Verwenden Sie die Methode Update():

DocumentReference washington_ref = db->Collection("cities").Document("DC");
// Set the "capital" field of the city "DC".
washington_ref.Update({{"capital", FieldValue::Boolean(true)}});
snippets.cpp

Node.js

Verwenden Sie die Methode update():

const cityRef = db.collection('cities').doc('DC');

// Set the 'capital' field of the city
const res = await cityRef.update({capital: true});
index.js

Go

Verwenden Sie die Methode Update():

import (
	"context"
	"log"

	"cloud.google.com/go/firestore"
)

func updateDoc(ctx context.Context, client *firestore.Client) error {
	// ...

	_, err := client.Collection("cities").Doc("DC").Update(ctx, []firestore.Update{
		{
			Path:  "capital",
			Value: true,
		},
	})
	if err != nil {
		// Handle any errors in an appropriate way, such as returning them.
		log.Printf("An error has occurred: %s", err)
	}

	return err
}
save_data_set_field.go

PHP

Verwenden Sie die Methode update():

PHP

Richten Sie Standardanmeldedaten für Anwendungen ein, um sich bei Firestore zu authentifizieren. Weitere Informationen finden Sie unter Authentifizierung für eine lokale Entwicklungsumgebung einrichten.

$cityRef = $db->collection('samples/php/cities')->document('DC');
$cityRef->update([
    ['path' => 'capital', 'value' => true]
]);

Einheit

Verwenden Sie die Methode UpdateAsync():

DocumentReference cityRef = db.Collection("cities").Document("new-city-id");
Dictionary<string, object> updates = new Dictionary<string, object>
{
	{ "Capital", false }
};

cityRef.UpdateAsync(updates).ContinueWithOnMainThread(task => {
	Debug.Log(
		"Updated the Capital field of the new-city-id document in the cities collection.");
});
// You can also update a single field with: cityRef.UpdateAsync("Capital", false);

C#

Verwenden Sie die Methode UpdateAsync():

DocumentReference cityRef = db.Collection("cities").Document("new-city-id");
Dictionary<string, object> updates = new Dictionary<string, object>
{
    { "Capital", false }
};
await cityRef.UpdateAsync(updates);

// You can also update a single field with: await cityRef.UpdateAsync("Capital", false);
Program.cs

Ruby

Verwenden Sie die Methode update():

city_ref = firestore.doc "#{collection_path}/DC"
city_ref.update({ capital: true })
add_data.rb

Server-Zeitstempel

Sie können ein Feld in Ihrem Dokument auf einen Server-Zeitstempel setzen, der erfasst, wann der Server das Update erhält.

Webversion 9

Weitere Informationen zur modularen Web API, die durch Tree-Shaking optimiert werden kann, und zum Upgrade von der API mit Namensraum.

import { updateDoc, serverTimestamp } from "firebase/firestore";

const docRef = doc(db, 'objects', 'some-id');

// Update the timestamp field with the value from the server
const updateTimestamp = await updateDoc(docRef, {
    timestamp: serverTimestamp()
});
update_with_server_timestamp.js

Webversion 8

Informationen zur baumrüttbaren modularen Web API und Upgrade von die Namespace-API.

var docRef = db.collection('objects').doc('some-id');

// Update the timestamp field with the value from the server
var updateTimestamp = docRef.update({
    timestamp: firebase.firestore.FieldValue.serverTimestamp()
});
test.firestore.js

Swift

Hinweis: Dieses Produkt nicht ist auf WatchOS- und App Clip-Zielen verfügbar.

do {
  try await db.collection("objects").document("some-id").updateData([
    "lastUpdated": FieldValue.serverTimestamp(),
  ])
  print("Document successfully updated")
} catch {
  print("Error updating document: \(error)")
}
ViewController.swift

Objective-C

Hinweis: Dieses Produkt nicht ist auf WatchOS- und App Clip-Zielen verfügbar.

[[[self.db collectionWithPath:@"objects"] documentWithPath:@"some-id"] updateData:@{
  @"lastUpdated": [FIRFieldValue fieldValueForServerTimestamp]
} completion:^(NSError * _Nullable error) {
  if (error != nil) {
    NSLog(@"Error updating document: %@", error);
  } else {
    NSLog(@"Document successfully updated");
  }
}];
ViewController.m

Kotlin+KTX
Android

// If you're using custom Kotlin objects in Android, add an @ServerTimestamp
// annotation to a Date field for your custom object classes. This indicates
// that the Date field should be treated as a server timestamp by the object mapper.
val docRef = db.collection("objects").document("some-id")

// Update the timestamp field with the value from the server
val updates = hashMapOf<String, Any>(
    "timestamp" to FieldValue.serverTimestamp(),
)

docRef.update(updates).addOnCompleteListener { }
DocSnippets.kt

Java
Android

// If you're using custom Java objects in Android, add an @ServerTimestamp
// annotation to a Date field for your custom object classes. This indicates
// that the Date field should be treated as a server timestamp by the object mapper.
DocumentReference docRef = db.collection("objects").document("some-id");

// Update the timestamp field with the value from the server
Map<String,Object> updates = new HashMap<>();
updates.put("timestamp", FieldValue.serverTimestamp());

docRef.update(updates).addOnCompleteListener(new OnCompleteListener<Void>() {
    // ...
    // ...
DocSnippets.java

Dart

final docRef = db.collection("objects").doc("some-id");
final updates = <String, dynamic>{
  "timestamp": FieldValue.serverTimestamp(),
};

docRef.update(updates).then(
    (value) => print("DocumentSnapshot successfully updated!"),
    onError: (e) => print("Error updating document $e"));
firestore.dart

Java

DocumentReference docRef = db.collection("objects").document("some-id");
// Update the timestamp field with the value from the server
ApiFuture<WriteResult> writeResult = docRef.update("timestamp", FieldValue.serverTimestamp());
System.out.println("Update time : " + writeResult.get());
ManageDataSnippets.java

Python

city_ref = db.collection("objects").document("some-id")
city_ref.update({"timestamp": firestore.SERVER_TIMESTAMP})
snippets.py

Python
(Async)

city_ref = db.collection("objects").document("some-id")
await city_ref.update({"timestamp": firestore.SERVER_TIMESTAMP})
snippets.py

C++

DocumentReference doc_ref = db->Collection("objects").Document("some-id");
doc_ref.Update({{"timestamp", FieldValue::ServerTimestamp()}})
    .OnCompletion([](const Future<void>& future) {
      // ...
    });
snippets.cpp

Node.js

// Create a document reference
const docRef = db.collection('objects').doc('some-id');

// Update the timestamp field with the value from the server
const res = await docRef.update({
  timestamp: FieldValue.serverTimestamp()
});
index.js

Go

import (
	"context"
	"log"

	"cloud.google.com/go/firestore"
)

func updateDocServerTimestamp(ctx context.Context, client *firestore.Client) error {
	// ...

	_, err := client.Collection("objects").Doc("some-id").Set(ctx, map[string]interface{}{
		"timestamp": firestore.ServerTimestamp,
	}, firestore.MergeAll)
	if err != nil {
		// Handle any errors in an appropriate way, such as returning them.
		log.Printf("An error has occurred: %s", err)
	}

	return err
}
save_data_set_server_timestamp.go

PHP

PHP

Richten Sie Standardanmeldedaten für Anwendungen ein, um sich bei Firestore zu authentifizieren. Weitere Informationen finden Sie unter Authentifizierung für eine lokale Entwicklungsumgebung einrichten.

$docRef = $db->collection('samples/php/objects')->document('some-id');
$docRef->update([
    ['path' => 'timestamp', 'value' => FieldValue::serverTimestamp()]
]);

Einheit

DocumentReference cityRef = db.Collection("cities").Document("new-city-id");
cityRef.UpdateAsync("Timestamp", FieldValue.ServerTimestamp)
	.ContinueWithOnMainThread(task => {
		Debug.Log(
			"Updated the Timestamp field of the new-city-id document in the cities "
			+ "collection.");
	});

C#

DocumentReference cityRef = db.Collection("cities").Document("new-city-id");
await cityRef.UpdateAsync("Timestamp", Timestamp.GetCurrentTimestamp());
Program.cs

Ruby

city_ref = firestore.doc "#{collection_path}/new-city-id"
city_ref.update({ timestamp: firestore.field_server_time })
add_data.rb

Wenn Sie mehrere Zeitstempelfelder innerhalb einer Transaktion aktualisieren, erhält jedes Feld denselben Serverzeitstempelwert.

Felder in verschachtelten Objekten aktualisieren

Wenn Ihr Dokument verschachtelte Objekte enthält, können Sie mithilfe der Punktnotation auf verschachtelte Felder im Dokument zu verweisen, wenn Sie update() aufrufen:

Webversion 9

Informationen zur baumrüttbaren modularen Web API und Upgrade von die Namespace-API.

import { doc, setDoc, updateDoc } from "firebase/firestore"; 

// Create an initial document to update.
const frankDocRef = doc(db, "users", "frank");
await setDoc(frankDocRef, {
    name: "Frank",
    favorites: { food: "Pizza", color: "Blue", subject: "recess" },
    age: 12
});

// To update age and favorite color:
await updateDoc(frankDocRef, {
    "age": 13,
    "favorites.color": "Red"
});
update_document_nested.js

Webversion 8

Informationen zur baumrüttbaren modularen Web API und Upgrade von die Namespace-API.

// Create an initial document to update.
var frankDocRef = db.collection("users").doc("frank");
frankDocRef.set({
    name: "Frank",
    favorites: { food: "Pizza", color: "Blue", subject: "recess" },
    age: 12
});

// To update age and favorite color:
db.collection("users").doc("frank").update({
    "age": 13,
    "favorites.color": "Red"
})
.then(() => {
    console.log("Document successfully updated!");
});
test.firestore.js

Swift

Hinweis: Dieses Produkt nicht ist auf WatchOS- und App Clip-Zielen verfügbar.

// Create an initial document to update.
let frankDocRef = db.collection("users").document("frank")
do {
  try await frankDocRef.setData([
    "name": "Frank",
    "favorites": [ "food": "Pizza", "color": "Blue", "subject": "recess" ],
    "age": 12
  ])

  // To update age and favorite color:
  try await frankDocRef.updateData([
    "age": 13,
    "favorites.color": "Red"
  ])
  print("Document successfully updated")
} catch {
  print("Error updating document: \(error)")
}
ViewController.swift

Objective-C

Hinweis: Dieses Produkt nicht ist auf WatchOS- und App Clip-Zielen verfügbar.

// Create an initial document to update.
FIRDocumentReference *frankDocRef =
    [[self.db collectionWithPath:@"users"] documentWithPath:@"frank"];
[frankDocRef setData:@{
  @"name": @"Frank",
  @"favorites": @{
    @"food": @"Pizza",
    @"color": @"Blue",
    @"subject": @"recess"
  },
  @"age": @12
}];
// To update age and favorite color:
[frankDocRef updateData:@{
  @"age": @13,
  @"favorites.color": @"Red",
} completion:^(NSError * _Nullable error) {
  if (error != nil) {
    NSLog(@"Error updating document: %@", error);
  } else {
    NSLog(@"Document successfully updated");
  }
}];
ViewController.m

Kotlin+KTX
Android

// Assume the document contains:
// {
//   name: "Frank",
//   favorites: { food: "Pizza", color: "Blue", subject: "recess" }
//   age: 12
// }
//
// To update age and favorite color:
db.collection("users").document("frank")
    .update(
        mapOf(
            "age" to 13,
            "favorites.color" to "Red",
        ),
    )
DocSnippets.kt

Java
Android

// Assume the document contains:
// {
//   name: "Frank",
//   favorites: { food: "Pizza", color: "Blue", subject: "recess" }
//   age: 12
// }
//
// To update age and favorite color:
db.collection("users").document("frank")
        .update(
                "age", 13,
                "favorites.color", "Red"
        );
DocSnippets.java

Dart

// Assume the document contains:
// {
//   name: "Frank",
//   favorites: { food: "Pizza", color: "Blue", subject: "recess" }
//   age: 12
// }
db
    .collection("users")
    .doc("frank")
    .update({"age": 13, "favorites.color": "Red"});
firestore.dart

Java

// Create an initial document to update
DocumentReference frankDocRef = db.collection("users").document("frank");
Map<String, Object> initialData = new HashMap<>();
initialData.put("name", "Frank");
initialData.put("age", 12);

Map<String, Object> favorites = new HashMap<>();
favorites.put("food", "Pizza");
favorites.put("color", "Blue");
favorites.put("subject", "Recess");
initialData.put("favorites", favorites);

ApiFuture<WriteResult> initialResult = frankDocRef.set(initialData);
// Confirm that data has been successfully saved by blocking on the operation
initialResult.get();

// Update age and favorite color
Map<String, Object> updates = new HashMap<>();
updates.put("age", 13);
updates.put("favorites.color", "Red");

// Async update document
ApiFuture<WriteResult> writeResult = frankDocRef.update(updates);
// ...
System.out.println("Update time : " + writeResult.get().getUpdateTime());
ManageDataSnippets.java

Python

# Create an initial document to update
frank_ref = db.collection("users").document("frank")
frank_ref.set(
    {
        "name": "Frank",
        "favorites": {"food": "Pizza", "color": "Blue", "subject": "Recess"},
        "age": 12,
    }
)

# Update age and favorite color
frank_ref.update({"age": 13, "favorites.color": "Red"})
snippets.py

Python
(Async)

# Create an initial document to update
frank_ref = db.collection("users").document("frank")
await frank_ref.set(
    {
        "name": "Frank",
        "favorites": {"food": "Pizza", "color": "Blue", "subject": "Recess"},
        "age": 12,
    }
)

# Update age and favorite color
await frank_ref.update({"age": 13, "favorites.color": "Red"})
snippets.py

C++

// Assume the document contains:
// {
//   name: "Frank",
//   favorites: { food: "Pizza", color: "Blue", subject: "recess" }
//   age: 12
// }
//
// To update age and favorite color:
db->Collection("users").Document("frank").Update({
    {"age", FieldValue::Integer(13)},
    {"favorites.color", FieldValue::String("red")},
});
snippets.cpp

Node.js

const initialData = {
  name: 'Frank',
  age: 12,
  favorites: {
    food: 'Pizza',
    color: 'Blue',
    subject: 'recess'
  }
};

// ...
const res = await db.collection('users').doc('Frank').update({
  age: 13,
  'favorites.color': 'Red'
});
index.js

Go

import (
	"context"
	"log"

	"cloud.google.com/go/firestore"
)

func updateDocNested(ctx context.Context, client *firestore.Client) error {
	initialData := map[string]interface{}{
		"name": "Frank",
		"age":  12,
		"favorites": map[string]interface{}{
			"food":    "Pizza",
			"color":   "Blue",
			"subject": "recess",
		},
	}

	// ...

	_, err := client.Collection("users").Doc("frank").Set(ctx, map[string]interface{}{
		"age": 13,
		"favorites": map[string]interface{}{
			"color": "Red",
		},
	}, firestore.MergeAll)
	if err != nil {
		// Handle any errors in an appropriate way, such as returning them.
		log.Printf("An error has occurred: %s", err)
	}

	return err
}
save_data_set_nested_fields.go

PHP

PHP

Richten Sie Standardanmeldedaten für Anwendungen ein, um sich bei Firestore zu authentifizieren. Weitere Informationen finden Sie unter Authentifizierung für eine lokale Entwicklungsumgebung einrichten.

// Create an initial document to update
$frankRef = $db->collection('samples/php/users')->document('frank');
$frankRef->set([
    'first' => 'Frank',
    'last' => 'Franklin',
    'favorites' => ['food' => 'Pizza', 'color' => 'Blue', 'subject' => 'Recess'],
    'age' => 12
]);

// Update age and favorite color
$frankRef->update([
    ['path' => 'age', 'value' => 13],
    ['path' => 'favorites.color', 'value' => 'Red']
]);

Einheit

DocumentReference frankDocRef = db.Collection("users").Document("frank");
Dictionary<string, object> initialData = new Dictionary<string, object>
{
	{ "Name", "Frank" },
	{ "Age", 12 }
};

Dictionary<string, object> favorites = new Dictionary<string, object>
{
	{ "Food", "Pizza" },
	{ "Color", "Blue" },
	{ "Subject", "Recess" },
};
initialData.Add("Favorites", favorites);
frankDocRef.SetAsync(initialData).ContinueWithOnMainThread(task => {

	// Update age and favorite color
	Dictionary<string, object> updates = new Dictionary<string, object>
	{
		{ "Age", 13 },
		{ "Favorites.Color", "Red" },
	};

	// Asynchronously update the document
	return frankDocRef.UpdateAsync(updates);
}).ContinueWithOnMainThread(task => {
	Debug.Log(
		"Updated the age and favorite color fields of the Frank document in "
		+ "the users collection.");
});

C#

DocumentReference frankDocRef = db.Collection("users").Document("frank");
Dictionary<string, object> initialData = new Dictionary<string, object>
{
    { "Name", "Frank" },
    { "Age", 12 }
};

Dictionary<string, object> favorites = new Dictionary<string, object>
{
    { "Food", "Pizza" },
    { "Color", "Blue" },
    { "Subject", "Recess" },
};
initialData.Add("Favorites", favorites);
await frankDocRef.SetAsync(initialData);

// Update age and favorite color
Dictionary<string, object> updates = new Dictionary<string, object>
{
    { "Age", 13 },
    { "Favorites.Color", "Red" },
};

// Asynchronously update the document
await frankDocRef.UpdateAsync(updates);
Program.cs

Ruby

# Create an initial document to update
frank_ref = firestore.doc "#{collection_path}/frank"
frank_ref.set(
  {
    name:      "Frank",
    favorites: {
      food:    "Pizza",
      color:   "Blue",
      subject: "Recess"
    },
    age:       12
  }
)

# Update age and favorite color
frank_ref.update({ age: 13, "favorites.color": "Red" })
add_data.rb

Mit der Punktnotation können Sie ein einzelnes verschachteltes Feld aktualisieren, ohne es zu überschreiben anderen verschachtelten Felder. Wenn Sie ein verschachteltes Feld ohne Punktnotation aktualisieren, das gesamte Kartenfeld wie im folgenden Beispiel überschrieben:

Web

// Create our initial doc
db.collection("users").doc("frank").set({
  name: "Frank",
  favorites: {
    food: "Pizza",
    color: "Blue",
    subject: "Recess"
  },
  age: 12
}).then(function() {
  console.log("Frank created");
});

// Update the doc without using dot notation.
// Notice the map value for favorites.
db.collection("users").doc("frank").update({
  favorites: {
    food: "Ice Cream"
  }
}).then(function() {
  console.log("Frank food updated");
});

/*
Ending State, favorite.color and favorite.subject are no longer present:
/users
    /frank
        {
            name: "Frank",
            favorites: {
                food: "Ice Cream",
            },
            age: 12
        }
 */

Elemente in einem Array aktualisieren

Wenn Ihr Dokument ein Array-Feld enthält, können Sie arrayUnion() und arrayRemove() zum Hinzufügen und Entfernen von Elementen verwenden. arrayUnion() fügt einem Array Elemente hinzu, aber nur Elemente, die nicht bereits vorhanden sind. arrayRemove() entfernt alle Instanzen jedes angegebenen Elements.

Webversion 9

Informationen zur baumrüttbaren modularen Web API und Upgrade von die Namespace-API.

import { doc, updateDoc, arrayUnion, arrayRemove } from "firebase/firestore";

const washingtonRef = doc(db, "cities", "DC");

// Atomically add a new region to the "regions" array field.
await updateDoc(washingtonRef, {
    regions: arrayUnion("greater_virginia")
});

// Atomically remove a region from the "regions" array field.
await updateDoc(washingtonRef, {
    regions: arrayRemove("east_coast")
});
update_document_array.js

Webversion 8

Informationen zur baumrüttbaren modularen Web API und Upgrade von die Namespace-API.

var washingtonRef = db.collection("cities").doc("DC");

// Atomically add a new region to the "regions" array field.
washingtonRef.update({
    regions: firebase.firestore.FieldValue.arrayUnion("greater_virginia")
});

// Atomically remove a region from the "regions" array field.
washingtonRef.update({
    regions: firebase.firestore.FieldValue.arrayRemove("east_coast")
});
test.firestore.js

Swift

Hinweis: Dieses Produkt nicht ist auf WatchOS- und App Clip-Zielen verfügbar.

let washingtonRef = db.collection("cities").document("DC")

// Atomically add a new region to the "regions" array field.
washingtonRef.updateData([
  "regions": FieldValue.arrayUnion(["greater_virginia"])
])

// Atomically remove a region from the "regions" array field.
washingtonRef.updateData([
  "regions": FieldValue.arrayRemove(["east_coast"])
])
ViewController.swift

Objective-C

Hinweis: Dieses Produkt nicht ist auf WatchOS- und App Clip-Zielen verfügbar.

FIRDocumentReference *washingtonRef =
    [[self.db collectionWithPath:@"cities"] documentWithPath:@"DC"];

// Atomically add a new region to the "regions" array field.
[washingtonRef updateData:@{
  @"regions": [FIRFieldValue fieldValueForArrayUnion:@[@"greater_virginia"]]
}];

// Atomically remove a new region to the "regions" array field.
[washingtonRef updateData:@{
  @"regions": [FIRFieldValue fieldValueForArrayRemove:@[@"east_coast"]]
}];
ViewController.m

Kotlin+KTX
Android

val washingtonRef = db.collection("cities").document("DC")

// Atomically add a new region to the "regions" array field.
washingtonRef.update("regions", FieldValue.arrayUnion("greater_virginia"))

// Atomically remove a region from the "regions" array field.
washingtonRef.update("regions", FieldValue.arrayRemove("east_coast"))
DocSnippets.kt

Java
Android

DocumentReference washingtonRef = db.collection("cities").document("DC");

// Atomically add a new region to the "regions" array field.
washingtonRef.update("regions", FieldValue.arrayUnion("greater_virginia"));

// Atomically remove a region from the "regions" array field.
washingtonRef.update("regions", FieldValue.arrayRemove("east_coast"));
DocSnippets.java

Dart

final washingtonRef = db.collection("cities").doc("DC");

// Atomically add a new region to the "regions" array field.
washingtonRef.update({
  "regions": FieldValue.arrayUnion(["greater_virginia"]),
});

// Atomically remove a region from the "regions" array field.
washingtonRef.update({
  "regions": FieldValue.arrayRemove(["east_coast"]),
});
firestore.dart

Java

DocumentReference washingtonRef = db.collection("cities").document("DC");

// Atomically add a new region to the "regions" array field.
ApiFuture<WriteResult> arrayUnion =
    washingtonRef.update("regions", FieldValue.arrayUnion("greater_virginia"));
System.out.println("Update time : " + arrayUnion.get());

// Atomically remove a region from the "regions" array field.
ApiFuture<WriteResult> arrayRm =
    washingtonRef.update("regions", FieldValue.arrayRemove("east_coast"));
System.out.println("Update time : " + arrayRm.get());
ManageDataSnippets.java

Python

city_ref = db.collection("cities").document("DC")

# Atomically add a new region to the 'regions' array field.
city_ref.update({"regions": firestore.ArrayUnion(["greater_virginia"])})

# // Atomically remove a region from the 'regions' array field.
city_ref.update({"regions": firestore.ArrayRemove(["east_coast"])})
snippets.py

Python
(Async)

city_ref = db.collection("cities").document("DC")

# Atomically add a new region to the 'regions' array field.
await city_ref.update({"regions": firestore.ArrayUnion(["greater_virginia"])})

# // Atomically remove a region from the 'regions' array field.
await city_ref.update({"regions": firestore.ArrayRemove(["east_coast"])})
snippets.py

C++

// This is not yet supported.

Node.js

// ...
const washingtonRef = db.collection('cities').doc('DC');

// Atomically add a new region to the "regions" array field.
const unionRes = await washingtonRef.update({
  regions: FieldValue.arrayUnion('greater_virginia')
});
// Atomically remove a region from the "regions" array field.
const removeRes = await washingtonRef.update({
  regions: FieldValue.arrayRemove('east_coast')
});

// To add or remove multiple items, pass multiple arguments to arrayUnion/arrayRemove
const multipleUnionRes = await washingtonRef.update({
  regions: FieldValue.arrayUnion('south_carolina', 'texas')
  // Alternatively, you can use spread operator in ES6 syntax
  // const newRegions = ['south_carolina', 'texas']
  // regions: FieldValue.arrayUnion(...newRegions)
});
index.js

Go

// Not supported yet

PHP

PHP

Richten Sie Standardanmeldedaten für Anwendungen ein, um sich bei Firestore zu authentifizieren. Weitere Informationen finden Sie unter Authentifizierung für eine lokale Entwicklungsumgebung einrichten.

$cityRef = $db->collection('samples/php/cities')->document('DC');

// Atomically add a new region to the "regions" array field.
$cityRef->update([
    ['path' => 'regions', 'value' => FieldValue::arrayUnion(['greater_virginia'])]
]);

// Atomically remove a region from the "regions" array field.
$cityRef->update([
    ['path' => 'regions', 'value' => FieldValue::arrayRemove(['east_coast'])]
]);

Einheit

// This is not yet supported in the Unity SDK
  

C#

DocumentReference washingtonRef = db.Collection("cities").Document("DC");

// Atomically add a new region to the "regions" array field.
await washingtonRef.UpdateAsync("Regions", FieldValue.ArrayUnion("greater_virginia"));

// Atomically remove a region from the "regions" array field.
await washingtonRef.UpdateAsync("Regions", FieldValue.ArrayRemove("east_coast"));
Program.cs

Ruby

// Not supported yet

Numerischen Wert erhöhen

Sie können einen numerischen Feldwert erhöhen oder verringern, wie im folgenden Beispiel dargestellt. Durch einen inkrementellen Vorgang wird der aktuelle Wert eines Felds um den angegebenen Betrag erhöht oder verringert.

Hinweis:Wenn das Feld nicht vorhanden ist oder der aktuelle Feldwert nicht numerischen Wert enthält, setzt der Vorgang das Feld auf den angegebenen Wert.

Webversion 9

Informationen zur baumrüttbaren modularen Web API und Upgrade von die Namespace-API.

import { doc, updateDoc, increment } from "firebase/firestore";

const washingtonRef = doc(db, "cities", "DC");

// Atomically increment the population of the city by 50.
await updateDoc(washingtonRef, {
    population: increment(50)
});
update_document_increment.js

Webversion 8

Informationen zur baumrüttbaren modularen Web API und Upgrade von die Namespace-API.

var washingtonRef = db.collection('cities').doc('DC');

// Atomically increment the population of the city by 50.
washingtonRef.update({
    population: firebase.firestore.FieldValue.increment(50)
});
test.firestore.js

Swift

Hinweis: Dieses Produkt nicht ist auf WatchOS- und App Clip-Zielen verfügbar.

let washingtonRef = db.collection("cities").document("DC")

// Atomically increment the population of the city by 50.
// Note that increment() with no arguments increments by 1.
washingtonRef.updateData([
  "population": FieldValue.increment(Int64(50))
])
ViewController.swift

Objective-C

Hinweis: Dieses Produkt nicht ist auf WatchOS- und App Clip-Zielen verfügbar.

FIRDocumentReference *washingtonRef =
    [[self.db collectionWithPath:@"cities"] documentWithPath:@"DC"];

// Atomically increment the population of the city by 50.
// Note that increment() with no arguments increments by 1.
[washingtonRef updateData:@{
  @"population": [FIRFieldValue fieldValueForIntegerIncrement:50]
}];
ViewController.m

Kotlin+KTX
Android

val washingtonRef = db.collection("cities").document("DC")

// Atomically increment the population of the city by 50.
washingtonRef.update("population", FieldValue.increment(50))
DocSnippets.kt

Java
Android

DocumentReference washingtonRef = db.collection("cities").document("DC");

// Atomically increment the population of the city by 50.
washingtonRef.update("population", FieldValue.increment(50));
DocSnippets.java

Dart

var washingtonRef = db.collection('cities').doc('DC');

// Atomically increment the population of the city by 50.
washingtonRef.update(
  {"population": FieldValue.increment(50)},
);
firestore.dart

Java

DocumentReference washingtonRef = db.collection("cities").document("DC");

// Atomically increment the population of the city by 50.
final ApiFuture<WriteResult> updateFuture =
    washingtonRef.update("population", FieldValue.increment(50));
ManageDataSnippets.java

Python

washington_ref = db.collection("cities").document("DC")

washington_ref.update({"population": firestore.Increment(50)})
snippets.py

Python
(Async)

washington_ref = db.collection("cities").document("DC")

await washington_ref.update({"population": firestore.Increment(50)})
snippets.py

C++

// This is not yet supported.

Node.js

// ...
const washingtonRef = db.collection('cities').doc('DC');

// Atomically increment the population of the city by 50.
const res = await washingtonRef.update({
  population: FieldValue.increment(50)
});
index.js

Go

import (
	"context"
	"fmt"

	"cloud.google.com/go/firestore"
)

// updateDocumentIncrement increments the population of the city document in the
// cities collection by 50.
func updateDocumentIncrement(projectID, city string) error {
	// projectID := "my-project"

	ctx := context.Background()

	client, err := firestore.NewClient(ctx, projectID)
	if err != nil {
		return fmt.Errorf("firestore.NewClient: %w", err)
	}
	defer client.Close()

	dc := client.Collection("cities").Doc(city)
	_, err = dc.Update(ctx, []firestore.Update{
		{Path: "population", Value: firestore.Increment(50)},
	})
	if err != nil {
		return fmt.Errorf("Update: %w", err)
	}

	return nil
}
increment.go

PHP

PHP

Richten Sie Standardanmeldedaten für Anwendungen ein, um sich bei Firestore zu authentifizieren. Weitere Informationen finden Sie unter Authentifizierung für eine lokale Entwicklungsumgebung einrichten.

$cityRef = $db->collection('samples/php/cities')->document('DC');

// Atomically increment the population of the city by 50.
$cityRef->update([
    ['path' => 'regions', 'value' => FieldValue::increment(50)]
]);

Einheit

// This is not yet supported in the Unity SDK.
  

C#

DocumentReference washingtonRef = db.Collection("cities").Document("DC");

// Atomically increment the population of the city by 50.
await washingtonRef.UpdateAsync("Regions", FieldValue.Increment(50));
Program.cs

Ruby

city_ref = firestore.doc "#{collection_path}/DC"
city_ref.update({ population: firestore.field_increment(50) })
add_data.rb

Inkrement-Operationen sind nützlich, um Zähler zu implementieren. Beachten Sie, dass können Sie ein einzelnes Dokument nur einmal pro Sekunde aktualisieren. Wenn Sie Ihren Zähler über diesen Wert hinaus aktualisieren möchten, rufen Sie die Seite Verteilte Zähler auf.