I am trying to display data from a firestore database by pushing it to an array and mapping it. My goal is to have it display on the first page load, however, it only displays after I make changes to…
Exception has occurred. NoSuchMethodError (NoSuchMethodError: The method 'then' was called on null. Receiver: null Tried calling: then(Closure: (dynamic) => Null)) Friends, I am getting the error I mentioned above. Does anyone know how to solve this? I'm trying to user…
I am writing a function to query a Firestore database collection for documents that have only certain properties. The filters is defined as an array of "key, value" pairs. eg: [ ["Colour", "green"], ["Colour", "blue"], ["Greeting", "hello"] ] This array…
So I just created a form for the user to key in his/her personal info in flutter. This is the code as a begining: import 'package:cloud_firestore/cloud_firestore.dart'; class InsertProfInfoToDB { String? name; int? height; int? weight; String? gender; String? birthDateInString; InsertProfInfoToDB();…
I am struggling to write a firebase rule that is checking the user id that is stored in a document. Hardcoding a given value as a string works allow write: if request.auth.uid == 'user-id-hardcoded'; ,however I am unable to find…
I tried reading the first couple of answers but none seem to have the same rule with the one I currently have my hands on. When I try to call the getDocs() function (using react) let userInfo = await getDoc(doc(db,…
static List categoryList() { final categorySnapshots = FirebaseFirestore.instance .collection('categories') .orderBy('name') .snapshots(); List categories = []; categorySnapshots.map((snapshot) => snapshot.docs.map((doc) { print(snapshot.toString()); categories.add(doc.data()['name']); })); print(categories); return categories; } Categories is empty. How to populate it with the data from snapshots?
So let's say you have 3 or more courses like c#, c++, java, and Python and you would like to implement some chatting feature on each course. Would you create like different collections to store their messages separately in cloud…
I have a firestore documented modeled like this: In each document, there can be multiple messages, and in each message, there can be multiple comments. Im trying to update the comments with the following: Future<void> updateStingrayComment( Comment? comment, String? stingrayid)…
my Code for firestore my Code for firestore SET I have tried: firebase.firestore().settings({ experimentalForceLongPolling: true,merge:true }); firebase.firestore().settings({ experimentalForceLongPolling: true }); firebase.firestore().settings({ experimentalAutoDetectLongPolling:true}); Nothing works ... still getting the error. This is the ERROR: WARN [2022-07-07T23:56:51.946Z] @firebase/firestore: Firestore (8.2.2): Connection WebChannel…