google-cloud-firestore

问题 I'm trying to retrieve a document id by calling doc.getId() but I can't call it from this code db.collection("Pegawai").addSnapshotListener(new EventListener<QuerySnapshot>() { @Override public void onEvent(@Nullable QuerySnapshot queryDocumentSnapshots, @Nullable FirebaseFirestoreException e) { if(e != null) { Log.d(TAG, e.toString()); } if (queryDocumentSnapshots != null) { for (DocumentChange doc: queryDocumentSnapshots.getDocumentChanges()) { if (doc.getType() == DocumentChange.Type.ADDED

问题 I'm trying to retrieve a document id by calling doc.getId() but I can't call it from this code db.collection("Pegawai").addSnapshotListener(new EventListener<QuerySnapshot>() { @Override public void onEvent(@Nullable QuerySnapshot queryDocumentSnapshots, @Nullable FirebaseFirestoreException e) { if(e != null) { Log.d(TAG, e.toString()); } if (queryDocumentSnapshots != null) { for (DocumentChange doc: queryDocumentSnapshots.getDocumentChanges()) { if (doc.getType() == DocumentChange.Type.ADDED

问题 I'm trying to retrieve a document id by calling doc.getId() but I can't call it from this code db.collection("Pegawai").addSnapshotListener(new EventListener<QuerySnapshot>() { @Override public void onEvent(@Nullable QuerySnapshot queryDocumentSnapshots, @Nullable FirebaseFirestoreException e) { if(e != null) { Log.d(TAG, e.toString()); } if (queryDocumentSnapshots != null) { for (DocumentChange doc: queryDocumentSnapshots.getDocumentChanges()) { if (doc.getType() == DocumentChange.Type.ADDED

问题 I'm using a StreamProvider in flutter to listen to my firebase collection. The stream works correctly however since I'm passing down the value of the stream provider to other child widgets(all of which are stateless) the child widgets don't rebuild even though the stream is correctly updated. This is my stream provider StreamProvider<List>.value( value: ChatService(shadeUID: widget.poll.shadeUID, pollUID: widget.poll.uid).threads, child: ThreadsList(poll: widget.poll, shadowUID: widget

问题 For every 'Record' Type of my Firestore table, BigQuery is automatically adding the ' key ' columns. I do not want to have these added for each of the 'Record' Type fields. How can I get rid of these extra columns automatically being added by BigQuery? (I want to get rid of the below columns in my BigQuery table schema highlighted in yellow) 回答1: This is intended behavior, citing Bigquery GCP documentation: Each document in Firestore has a unique key that contains information such as the

问题 I am newb to firebase, I want to create an aggregate function for the likes count. I have three root collection: feeds, likes, and users. feeds have the following fields: description: <description of feed> likeCount:<Total count of like> title: <feed title> userId: <userId of feed> likes have the following fields: feedId: <id of the feed where a user gives like> likeBy: <id of the user who likes the feed> likeTo: <id of the user how created a feed> users have the following fields: username:

问题 I have a database structure as follows (simplified for purposes of this question): Collection: item_A -> Document: params = {someParameter: "value"} -> Document: user_01 -> Sub-collection: orders -> Document: order_AA = {type: "A1", address: {pincode: "000000", city:"Paris"} -> Document: order_AB = {type: "A2", address: {pincode: "111111", city:"London"} ... -> Document: user_02 -> Sub-collection: orders -> Document: order_AC = {type: "A1", address: {pincode: "222222", city:"Berlin"} ->

问题 In my app when user is offline, I want data to store in local db and then sync data with firebase. 回答1: Both FireStore and Realtime Database have offline persistence. Firestore : Firestore.instance.settings(persistenceEnabled: true) In the case of Firebase Realtime database, you don't need anything specific to set-up. Offline connectivity is automatic. So, the following line does the trick : databaseReference.child(dbKey).set(data); 来源： https://stackoverflow.com/questions/61315478/what-is-the

问题 In my app when user is offline, I want data to store in local db and then sync data with firebase. 回答1: Both FireStore and Realtime Database have offline persistence. Firestore : Firestore.instance.settings(persistenceEnabled: true) In the case of Firebase Realtime database, you don't need anything specific to set-up. Offline connectivity is automatic. So, the following line does the trick : databaseReference.child(dbKey).set(data); 来源： https://stackoverflow.com/questions/61315478/what-is-the

问题 I have a database structure as follows (simplified for purposes of this question): Collection: registrations -> Document: params = {someParameter: "value"} -> Document: user_01 -> Sub-collection: orders -> Document: order_AA = {type: "Q1", address: {pincode: "000000", city:"Paris"} -> Document: order_AB = {type: "Q2", address: {pincode: "111111", city:"London"} ... -> Document: user_02 -> Sub-collection: orders -> Document: order_AC = {type: "Q1", address: {pincode: "222222", city:"Berlin"} -