google-cloud-firestore

问题 I am make random chat app use FirestoreAnimatedList (FirebaseAnimatedList for Firestore). I want show user avatar only one time if same user send many message so not have same avatar show many time. My solution is use index for check if last message send by same user. So I need check like : if (snapshot[index - 1][‘user’] == user) { return true; } But my snapshot is DocumentSnapshot so cannot call [index - 1] . Maybe I must get list from query ? How to access so can call index on list and

问题 I'm querying some data from my firestore,and I put it in my Usersdata, but I dont know how to get my values from Usersdata. Please help me to query my data! This is my struct base on Firestroe example struct Usersdata { let uid:String? let facebook:String? let google:String? let name:String? let age:Int? let birthday:String? let smokeage:Int? let smokeaddiction:Int? let smokebrand:String? let gold:Int? let score:Int? let fish:Int? let shit:Int? let userimage:String? init?(dictionary: [String:

问题 I'm querying some data from my firestore,and I put it in my Usersdata, but I dont know how to get my values from Usersdata. Please help me to query my data! This is my struct base on Firestroe example struct Usersdata { let uid:String? let facebook:String? let google:String? let name:String? let age:Int? let birthday:String? let smokeage:Int? let smokeaddiction:Int? let smokebrand:String? let gold:Int? let score:Int? let fish:Int? let shit:Int? let userimage:String? init?(dictionary: [String:

问题 I have this navbar, when I refresh the table, the data is fetched but when I move from links to links and go back to the link where the table is located. the data is not fetched or unknown. The problem occurs after I implemented the routers of the page. How can I fetch the data normally even I go back and forth with the links from the navbar. Im using firebase as my database here is the app-routing.module.ts import { NgModule } from '@angular/core'; import { Routes, RouterModule } from '

问题 we've been using realtime database to save some data from mobile devices (ios, android + now web). I earlier asked if the order, in which other clients see the data, is guaranteed to be the same order in which client wrote those. (here Does Firebase guarantee that data set using updateValues or setValue is available in the backend as one atomic unit? , the title is a bit misleading, but the answer is there) The answer was yes, and now we're migrating to Firestore and I'm wondering if the same

问题 we've been using realtime database to save some data from mobile devices (ios, android + now web). I earlier asked if the order, in which other clients see the data, is guaranteed to be the same order in which client wrote those. (here Does Firebase guarantee that data set using updateValues or setValue is available in the backend as one atomic unit? , the title is a bit misleading, but the answer is there) The answer was yes, and now we're migrating to Firestore and I'm wondering if the same

问题 i try to build a ActionsOnGoogle App with the ActionsSDK, Firebase Functions and Firebase Firestore. I build a fulfillment that haves to intents. The mainIntent when starting the Actions App and the answerIntent when the users answers the question from the mainIntent. Getting the text in the mainIntent from the firestore database and ask the users with the wrapped text work very fine. But then inside the function where new data is wrapped from the database array get filled. After executing

问题 As I know that, instead of get() I can use onSapshot() for my queries and listen to the changes(additions, deletions, modifications) for that query. But when there are changes, onSnaphot() returns multiple full documents whether modified, deleted or added (a new snapshot). What I want to do is, to check if new documents have been added matching my query and show a notification to the user that there are new records available, and only when a button is clicked, they should be able to fetch and

问题 As I know that, instead of get() I can use onSapshot() for my queries and listen to the changes(additions, deletions, modifications) for that query. But when there are changes, onSnaphot() returns multiple full documents whether modified, deleted or added (a new snapshot). What I want to do is, to check if new documents have been added matching my query and show a notification to the user that there are new records available, and only when a button is clicked, they should be able to fetch and

问题 I'm assigning two Firestore Queries to LiveData objects. Each one of these queries returns to different object classes: User and Book. I need to merge both of them together and apply a transformation so I can create a LinkedHashmap that combines both sets of data (queries). In order to do this I'm using MediatorLive data and to be able to merge the two different classes I'm using QuerySnapshot as the return type. The problem I'm running into is when I output the results of the