Menambahkan Data ke Cloud Firestore

Ada beberapa cara untuk menulis data ke Cloud Firestore:

Tetapkan data dokumen dalam koleksi yang secara eksplisit menentukan ID dokumen.
Tambahkan dokumen baru ke koleksi. Dalam hal ini, Cloud Firestore akan secara otomatis menghasilkan ID dokumen.
Buat dokumen kosong dengan ID yang dihasilkan secara otomatis, lalu pindahkan data ke dalamnya.

Panduan ini menjelaskan cara menggunakan metode set, add, atau update masing-masing dokumen di Cloud Firestore. Jika Anda ingin menulis data secara massal, lihat Transaksi dan Batch Operasi Tulis.

Menetapkan dokumen

Untuk membuat atau menimpa sebuah dokumen, gunakan metode set():

Web

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

Swift

// Add a new document in collection "cities"
db.collection("cities").document("LA").setData([
    "name": "Los Angeles",
    "state": "CA",
    "country": "USA"
]) { err in
    if let err = err {
        print("Error writing document: \(err)")
    } else {
        print("Document successfully written!")
    }
}ViewController.swift

Objective-C

// 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

Android

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

Java

// 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");
// 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

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

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

Node.js

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

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

Go

_, err := client.Collection("cities").Doc("LA").Set(ctx, map[string]interface{}{
	"name":    "Los Angeles",
	"state":   "CA",
	"country": "USA",
})
if err != nil {
	return err
}save.go

PHP

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

Jika dokumen tidak ada, dokumen itu akan dibuat. Jika dokumen memang ada, isi kontennya akan ditimpa dengan data yang baru disediakan, kecuali jika Anda menentukan bahwa data tersebut harus digabungkan ke dalam dokumen yang ada, seperti berikut ini:

Web

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

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

Swift

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

Objective-C

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

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

Java

// The option to merge data is not yet available for Java. Instead, call the
// update method and pass the option to create the document if it's missing.

//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

# The option to merge data is not yet available for Python. Instead, call the
# update method and pass the option to create the document if it's missing.

city_ref = db.collection(u'cities').document(u'BJ')

city_ref.update({
    u'capital': True
}, firestore.CreateIfMissingOption(True))snippets.py

Node.js

// The option to merge data is not yet available for Node.js. Instead, call the
// update method and pass the option to create the document if it's missing.

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

var setWithOptions = cityRef.set({
  capital: true
}, { merge: true });index.js

Go

_, err := client.Collection("cities").Doc("BJ").Set(ctx, map[string]interface{}{
	"capital": true,
}, firestore.MergeAll)

if err != nil {
	return err
}save.go

PHP

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

Jika Anda tidak yakin apakah dokumen itu ada, lewati opsi untuk menggabungkan data baru dengan dokumen yang ada agar tidak menimpa keseluruhan dokumen.

Jenis data

Cloud Firestore memungkinkan Anda untuk menulis berbagai jenis data di dalam dokumen, termasuk string, boolean, angka, tanggal, null, dan array serta objek bertingkat. Cloud Firestore selalu menyimpan angka sebagai nomor ganda, terlepas dari jenis angka yang Anda gunakan dalam kode.

Web

var docData = {
    stringExample: "Hello world!",
    booleanExample: true,
    numberExample: 3.14159265,
    dateExample: 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(function() {
    console.log("Document successfully written!");
});test.firestore.js

Swift

let docData: [String: Any] = [
    "stringExample": "Hello world!",
    "booleanExample": true,
    "numberExample": 3.14159265,
    "dateExample": NSDate(),
    "arrayExample": [5, true, "hello"],
    "nullExample": NSNull(),
    "objectExample": [
        "a": 5,
        "b": [
            "nested": "foo"
        ]
    ]
]
db.collection("data").document("one").setData(docData) { err in
    if let err = err {
        print("Error writing document: \(err)")
    } else {
        print("Document successfully written!")
    }
}ViewController.swift

Objective-C

NSDictionary *docData = @{
  @"stringExample": @"Hello world!",
  @"booleanExample": @YES,
  @"numberExample": @3.14,
  @"dateExample": [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

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 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

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

db.collection(u'data').document(u'one').set(data)snippets.py

Node.js

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

var setDoc = db.collection('data').doc('one').set(data);index.js

Go

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 {
	return err
}save.go

PHP

$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]
];
$db->collection('data')->document('one')->set($data);
printf('Set multiple data-type data for the one document in the data collection.' . PHP_EOL);add_doc_data_types.php

Objek kustom

Menggunakan objek Map Java untuk mewakili dokumen seringkali tidak mudah. Oleh karena itu, Cloud Firestore mendukung penulisan objek Java Anda sendiri dengan kelas khusus. Cloud Firestore akan secara internal mengubah objek tersebut menjadi tipe data yang didukung.

Dengan menggunakan kelas khusus, Anda bisa menulis ulang contoh awal berikut:

Web

// Web uses JavaScript objects

Peringatan: Library klien Web tidak mendukung objek kustom yang diwakili oleh new...(). Misalnya:

// Supported
db.collection("data").doc("one").set({foo:'bar'});

// Not supported
class Foo {
   constructor () {
    this.foo =' bar';
  }
}
db.collection("data").doc("one").set(new Foo());

Swift

// This isn't supported in Swift. Use a value type instead.

Objective-C

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

Android

public class City {

    private String name;
    private String state;
    private String country;
    private boolean capital;
    private long population;

    public City() {}

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

    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;
    }

}DocSnippets.java

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) {
  this.name = name;
  this.state = state;
  this.country = country;
  this.capital = capital;
  this.population = population;
}City.java

Python

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

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

    def to_dict(self):
        # ...

    def __repr__(self):
        return u'City(name={}, country={}, population={}, capital={})'.format(
            self.name, self.country, self.population, self.capital)snippets.py

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"`
}
main.go

Web

// Web uses JavaScript objects

Swift

// This isn't supported in Swift. Use a value type instead.

Objective-C

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

Android

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

Java

City city = new City("Los Angeles", "CA", "USA", false, 3900000L);
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=u'Los Angeles', state=u'CA', country=u'USA')
db.collection(u'cities').document(u'LA').set(city.to_dict())snippets.py

Node.js

// Node.js uses JavaScript objects

Go

city := City{
	Name:    "Los Angeles",
	Country: "USA",
}
_, err := client.Collection("cities").Doc("LA").Set(ctx, city)
if err != nil {
	return err
}save.go

PHP

// This isn't supported in PHP.

Menambahkan dokumen

Jika Anda menggunakan set() untuk membuat dokumen, Anda harus menentukan sebuah ID agar dokumen bisa dibuat. Misalnya:

Web

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

Swift

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

Objective-C

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

Android

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

Java

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

Python

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

Node.js

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

Go

_, err := client.Collection("cities").Doc("new-city-id").Set(ctx, data)
if err != nil {
	return err
}save.go

PHP

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

Namun, terkadang tidak ada ID yang berarti untuk dokumen ini dan lebih mudah untuk membiarkan Cloud Firestore membuat ID secara otomatis untuk Anda. Anda bisa melakukan hal ini dengan memanggil add():

Web

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

Swift

// Add a new document with a generated id.
var ref: DocumentReference? = nil
ref = db.collection("cities").addDocument(data: [
    "name": "Tokyo",
    "country": "Japan"
]) { err in
    if let err = err {
        print("Error adding document: \(err)")
    } else {
        print("Document added with ID: \(ref!.documentID)")
    }
}ViewController.swift

Objective-C

// 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

Android

// 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

Java

// 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

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

Node.js

// Add a new document with a generated id.
var addDoc = db.collection('cities').add({
  name: 'Tokyo',
  country: 'Japan'
}).then(ref => {
  console.log('Added document with ID: ', ref.id);
});index.js

Go

_, _, err := client.Collection("cities").Add(ctx, map[string]interface{}{
	"name":    "Tokyo",
	"country": "Japan",
})
if err != nil {
	return err
}save.go

PHP

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

Dalam beberapa kasus, akan cukup berguna untuk membuat referensi dokumen dengan ID yang dibuat secara otomatis, kemudian gunakan referensi itu lain waktu. Dalam hal ini, Anda dapat memanggil doc():

Web

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

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

Swift

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

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

Objective-C

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

Android

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

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

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

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(u'cities').document()

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

Node.js

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

// Later...
var setDoc = newCityRef.set({
  // ...
});index.js

Go

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

// later...
_, err := ref.Set(ctx, data)
if err != nil {
	return err
}save.go

PHP

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

Di balik itu, .add(...) dan .doc().set(...) benar-benar setara, sehingga Anda dapat menggunakan salah satu yang paling Anda sukai.

Mengupdate dokumen

Untuk mengupdate beberapa kolom dokumen tanpa menimpa keseluruhan dokumen, gunakan metode update():

Web

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

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

Swift

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

// Set the "capital" field of the city 'DC'
washingtonRef.updateData([
    "capital": true
]) { err in
    if let err = err {
        print("Error updating document: \(err)")
    } else {
        print("Document successfully updated")
    }
}ViewController.swift

Objective-C

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

Android

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

Java

// 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

city_ref = db.collection(u'cities').document(u'DC')

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

Node.js

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

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

Go

_, err := client.Collection("cities").Doc("DC").Set(ctx, map[string]interface{}{
	"capital": true,
}, firestore.MergeAll)
if err != nil {
	return err
}save.go

PHP

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

Mengupdate kolom pada objek bertingkat

Jika dokumen Anda memuat objek bertingkat, Anda dapat menggunakan "notasi titik" untuk merujuk ke kolom bertingkat pada dokumen saat memanggil update():

Web

// 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(function() {
    console.log("Document successfully updated!");
});test.firestore.js

Swift

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

// To update age and favorite color:
db.collection("users").document("frank").updateData([
    "age": 13,
    "favorites.color": "Red"
]) { err in
    if let err = err {
        print("Error updating document: \(err)")
    } else {
        print("Document successfully updated")
    }
}ViewController.swift

Objective-C

// 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

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

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(u'users').document(u'frank')
frank_ref.set({
    u'name': u'Frank',
    u'favorites': {
        u'food': u'Pizza',
        u'color': u'Blue',
        u'subject': u'Recess'
    },
    u'age': 12
})

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

Node.js

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

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

Go

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) // TODO(cbro): this should fail
if err != nil {
	return err
}save.go

PHP

// Create an initial document to update
$frankRef = $db->collection('users')->document('frank');
$frankRef->set([
    'name' => 'Frank',
    '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']
]);update_nested_fields.php

Anda juga dapat menambahkan stempel waktu server ke kolom tertentu di dokumen Anda untuk melacak kapan update diterima oleh server:

Web

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

db.collection("objects").document("some-id").updateData([
    "lastUpdated": FieldValue.serverTimestamp(),
]) { err in
    if let err = err {
        print("Error updating document: \(err)")
    } else {
        print("Document successfully updated")
    }
}ViewController.swift

Objective-C

[[[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

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

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(u'objects').document(u'some-id')
city_ref.update({
    u'timestamp': firestore.SERVER_TIMESTAMP
})snippets.py

Node.js

// Get the `FieldValue` object
var FieldValue = require('firebase-admin').firestore.FieldValue;

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

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

Go

_, err := client.Collection("objects").Doc("some-id").Set(ctx, map[string]interface{}{
	"timestamp": firestore.ServerTimestamp,
}, firestore.MergeAll)
if err != nil {
	return err
}save.go

PHP

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