Pass user data to profile screen from firebase - flutter

Question

I am tring to pas data to user profile screen from firebase
i have got error Unhandled Exception: 'package:cloud_firestore/src/collection_reference.dart': Failed assertion: line 116 pos 14: 'path.isNotEmpty': a document path must be a non-empty string
what do i need fix?
user prfile controller
lass ProfileController extends GetxController {
final Rx<Map<String, dynamic>> _user = Rx<Map<String, dynamic>>({});
Map<String, dynamic> get user => _user.value;
Rx<String> _uid = ''.obs;
updateUserID(String uid) {
_uid.value = uid;
getUserData();
}
void getUserData() async {
print("HELLO");
List<String> thumbnails = [];
// var myVideos = await firestore
// .collection('videos')
// .where('uid', isEqualTo: "9GFyxV41rkd0Iu0oy1tctobVNk92")
// .get();
//
// for (int i = 0; i < myVideos.docs.length; i++) {
// thumbnails.add((myVideos.docs[i].data() as dynamic)['thumbnail']);
// }
DocumentSnapshot userDoc =
await firestore.collection('users').doc(_uid.value).get();
final userData = userDoc.data()! as dynamic;
print(userData);
String name = userData['name'];
String profilePhoto = userData['profilePhoto'];
int likes = 0;
int followers = 0;
int following = 0;
bool isFollowing = false;
// for (var item in myVideos.docs) {
// likes += (item.data()['likes'] as List).length;
// }
// var followerDoc = await firestore
// .collection('users')
// .doc(_uid.value)
// .collection('followers')
// .get();
// var followingDoc = await firestore
// .collection('users')
// .doc(_uid.value)
// .collection('following')
// .get();
// followers = followerDoc.docs.length;
// following = followingDoc.docs.length;
// firestore
// .collection('users')
// .doc(_uid.value)
// .collection('followers')
// .doc(authController.user.uid)
// .get()
// .then(
// (value) {
// if (value.exists) {
// isFollowing = true;
// } else {
// isFollowing = false;
// }
// },
// );
_user.value = {
'followers': followers.toString(),
'following': following.toString(),
'isFollowing': isFollowing,
'likes': likes.toString(),
'profilePhoto': profilePhoto,
'name': name,
'thumbnails': thumbnails,
};
update();
}
followUser() async {
var doc = await firestore
.collection('users')
.doc(_uid.value)
.collection('followers')
.doc(authController.user.uid)
.get();
if (!doc.exists) {
await firestore
.collection('users')
.doc(_uid.value)
.collection('followers')
.doc(authController.user.uid)
.set({});
await firestore
.collection('users')
.doc(authController.user.uid)
.collection('following')
.doc(_uid.value)
.set({});
_user.value
.update('followers', (value) => (int.parse(value) + 1).toString());
} else {
await firestore
.collection('users')
.doc(_uid.value)
.collection('followers')
.doc(authController.user.uid)
.delete();
await firestore
.collection('users')
.doc(authController.user.uid)
.collection('following')
.doc(_uid.value)
.delete();
_user.value
.update('followers', (value) => (int.parse(value) - 1).toString());
}
_user.value.update('isFollowing', (value) => !value);
update();
}
}
auth Controller
class AuthController extends GetxController {
static AuthController instance = Get.find(); //TODO 2
var displayName = '';
var displayPhoto = '';
String myId = '';
late Rx<User?> _user; //TODO 1
User get user => _user.value!; //TODO 3
Rx<File?>? pickedImageVal;
File? get profilePhoto => pickedImageVal!.value;
FirebaseAuth auth = FirebaseAuth.instance;
User? get userProfile => auth.currentUser;
var isSignedIn = false.obs;
var _googleSignIn = GoogleSignIn();
var googleAccount = Rx<GoogleSignInAccount?>(null);
var firebaseStorage = FirebaseStorage.instance;
var firestore = FirebaseFirestore.instance;
// var authController = AuthController.instance;
#override
void onReady() {
super.onReady();
_user = Rx<User?>(firebaseAuth.currentUser);
_user.bindStream(firebaseAuth.authStateChanges());
ever(_user, _setInitialScreen);
}
_setInitialScreen(User? user) {
if (user == null) {
Get.offAll(OnboardingPage());
} else {
Get.offAll(const Home());
}
}
#override
void onInit() {
displayName = userProfile != null ? userProfile!.displayName! : '';
super.onInit();
}
void pickImage() async {
final pickedImage =
await ImagePicker().pickImage(source: ImageSource.gallery);
if (pickedImage != null) {
Get.snackbar(
'プロファイル写真', 'You have successfully selected your profile picture!');
}
pickedImageVal = Rx<File?>(File(pickedImage!.path));
}
Future<String> _uploadToStorage(File image) async {
Reference ref =
firebaseStorage.ref().child('profilePics').child(auth.currentUser!.uid);
UploadTask uploadTask = ref.putFile(image);
TaskSnapshot snap = await uploadTask;
String downloadUrl = await snap.ref.getDownloadURL();
return downloadUrl;
}
void signUp(String name, String email, String password, File? image) async {
try {
await auth
.createUserWithEmailAndPassword(email: email, password: password)
.then((value) {
displayName = name;
auth.currentUser!.updateDisplayName(name);
});
isSignedIn = true.obs;
String downloadUrl = await _uploadToStorage(profilePhoto!);
model.UserM user = model.UserM(
name: name,
email: email,
uid: auth.currentUser!.uid,
profilePhoto: downloadUrl,
);
await firestore
.collection('users')
.doc(auth.currentUser!.uid)
.set(user.toJson());
update();
Get.offAll(() => Root());
} on FirebaseAuthException catch (e) {
String title = e.code.replaceAll(RegExp('-'), ' ').capitalize!;
String message = '';
if (e.code == 'weak-password') {
message = 'The password provided is too weak.';
} else if (e.code == 'email-already-in-use') {
message = ('The account already exists for that email.');
} else {
message = e.message.toString();
}
Get.snackbar(title, message,
snackPosition: SnackPosition.BOTTOM,
backgroundColor: kPrimaryColor,
colorText: Colors.white);
} catch (e) {
Get.snackbar('Error occured!', e.toString(),
snackPosition: SnackPosition.BOTTOM,
backgroundColor: kPrimaryColor,
colorText: Colors.white);
}
}
void signIn(String email, String password) async {
try {
await auth
.signInWithEmailAndPassword(email: email, password: password)
.then((value) => displayName = userProfile!.displayName!);
isSignedIn = true.obs;
myId = userProfile!.uid; //TODO 4
update();
Get.offAll(() => Root());
} on FirebaseAuthException catch (e) {
String title = e.code.replaceAll(RegExp('-'), ' ').capitalize!;
String message = '';
if (e.code == 'wrong-password') {
message = 'Invalid Password. Please try again!';
} else if (e.code == 'user-not-found') {
message =
('The account does not exists for $email. Create your account by signing up.');
} else {
message = e.message.toString();
}
Get.snackbar('ユーザー名が存在しません。', 'アカウントを作成してください。',
snackPosition: SnackPosition.BOTTOM,
backgroundColor: kPrimaryColor,
colorText: Colors.white);
} catch (e) {
//TODO; what is Get.snackbar.e.tostring(), means?
Get.snackbar(
'Error occured!',
e.toString(),
snackPosition: SnackPosition.BOTTOM,
backgroundColor: kPrimaryColor,
colorText: Colors.white,
);
}
}
void resetPassword(String email) async {
try {
await auth.sendPasswordResetEmail(email: email);
Get.back();
} on FirebaseAuthException catch (e) {
String title = e.code.replaceAll(RegExp('-'), ' ').capitalize!;
String message = '';
if (e.code == 'user-not-found') {
message =
('The account does not exists for $email. Create your account by signing up.');
} else {
message = e.message.toString();
}
Get.snackbar(title, message,
snackPosition: SnackPosition.BOTTOM,
backgroundColor: kPrimaryColor,
colorText: Colors.white);
} catch (e) {
Get.snackbar('Error occured!', e.toString(),
snackPosition: SnackPosition.BOTTOM,
backgroundColor: kPrimaryColor,
colorText: Colors.white);
}
}
void signInWithGoogle() async {
try {
googleAccount.value = await _googleSignIn.signIn();
print(googleAccount.value);
displayName = googleAccount.value!.displayName!;
displayPhoto = googleAccount.value!.photoUrl!;
isSignedIn.value = true;
update(); // <-- without this the isSignedin value is not updated.
} catch (e) {
Get.snackbar('Error occured!', e.toString(),
snackPosition: SnackPosition.BOTTOM,
backgroundColor: kPrimaryColor,
colorText: Colors.white);
}
}
void signout() async {
try {
await auth.signOut();
await _googleSignIn.signOut();
displayName = '';
isSignedIn.value = false;
update();
Get.offAll(() => Root());
} catch (e) {
Get.snackbar('Error occured!', e.toString(),
snackPosition: SnackPosition.BOTTOM,
backgroundColor: kPrimaryColor,
colorText: Colors.white);
}
}
}
//
// extension StringExtention on String{
// String capitalizedString(){
// return'${this[0].toUpperCase()}${this.substring(1)}';
// }
// }
user profile screen
class ProfileScreen extends StatefulWidget {
final String uid;
ProfileScreen({Key? key, required this.uid}) : super(key: key);
#override
State<ProfileScreen> createState() => _ProfileScreenState();
}
class _ProfileScreenState extends State<ProfileScreen> {
final ProfileController profileController = Get.put(ProfileController());
#override
void initState() {
super.initState();
profileController.updateUserID(widget.uid);
}
#override
Widget build(BuildContext context) {
return GetBuilder<ProfileController>(
init: ProfileController(),
builder: (controller) {
// if (controller.user.isEmpty) {
// return Center(
// child: CircularProgressIndicator(),
// );
// }
print(controller.user);
return Scaffold(
appBar: AppBar(
backgroundColor: Colors.black12,
leading: Icon(Icons.person_add_alt_1_outlined),
actions: [
Icon(Icons.more_horiz),
],
title: Text(controller.user['name'].toString()),
),
body: SafeArea(
child: SingleChildScrollView(
child: Column(
children: [
Column(
children: [
Row(
mainAxisAlignment: MainAxisAlignment.center,
children: [
ClipOval(
child: CachedNetworkImage(
fit: BoxFit.cover,
imageUrl: controller.user['profilePhoto']
.toString(),
height: 100,
width: 100,
placeholder: (context, url) =>
CircularProgressIndicator(),
errorWidget: (context, url, error) =>
Icon(Icons.error)),
)
],
),
SizedBox(
height: 15,
),
Row(
mainAxisAlignment: MainAxisAlignment.center,
children: [
Column(
children: [
Text(controller.user['following'].toString()),
SizedBox(
height: 5,
),
Text('following'),
],
),
Container(
color: Colors.black54,
width: 1,
height: 15,
margin: EdgeInsets.symmetric(horizontal: 15),
),
Column(
children: [
Text(controller.user['followers'].toString()),
SizedBox(
height: 5,
),
Text('follower'),
],
),
Container(
color: Colors.black54,
width: 1,
height: 15,
margin: EdgeInsets.symmetric(horizontal: 15),
),
Column(
children: [
Text(controller.user['likes'].toString()),
SizedBox(
height: 5,
),
Text('likes'),
],
)
],
),
SizedBox(
height: 15,
),
Container(
width: 140,
height: 47,
decoration: BoxDecoration(
border: Border.all(
color: Colors.black12,
),
),
child: Center(
child: InkWell(
onTap: () {
// if (widget.uid == authController.user.uid) {
// authController.signOut();
// } else {
// controller.followUser();
},
// },
child: const Text(
"",
// widget.uid == authController.user.uid
// ? 'sign out'
// controller.user['isFollowing']
// ? 'unfollow'
// : 'follow',
),
),
),
),