CODEWITHSUNDEEP
firebasefluttergoogle-cloud-firestore
akhicoda
akhicoda

Reputation: 179

Firestore document update is failing

i have documents in firestore which i am trying to update. These updates are successful for old users but failing for new users. I have listview where user can see all the added documents. They click on Edit and then they are navigated to a detailed document view where they can make changes and save.

Error which i am receiving

[VERBOSE-2:ui_dart_state.cc(209)] Unhandled Exception: 
[cloud_firestore/not-found] Some requested document was not found.

I am passing document id with following from list view to single document edit view;

data: docId

In the edit page, i am loading the user id and doc id which is coming from previous page.

class Edit extends StatefulWidget {
 final DataModel data;

 Edit({required this.data});
String ui = FirebaseAuth.instance.currentUser!.uid;

@override
_EditState createState() => _EditState();
}

On save button i am updating firestore with following;

ElevatedButton.styleFrom(primary: Colors.redAccent),
                  onPressed: () async {
                    DocumentReference edit = FirebaseFirestore
                        .instance
                        .collection('edit')
                        .doc(ui)
                        .collection('edit')
                        .doc(widget.data.documentId);

            edit.update({ 
                 
                    });

Upvotes: 0

Views: 2012

Answers (2)

Priyashree Bhadra
Priyashree Bhadra

Reputation: 3597

The error message is telling you that the document you build a reference to was not found for update. There are a few ways to update data to Cloud Firestore:

  • update - change fields on a document that already exists. Fails if the document does not exist.
  • set - overwrite the data in a document, creating the document if it does not already exist. If you want to only partially update a document, use SetOptions.merge(). If you want to be able to create a document if it doesn't exist, or update it if it does already exist, you should pass SetOptions.merge as the second parameter, as explained by the API documentation.

So you just need to use the correct operation for your use case.

  • If you want to update a document without knowing if it exists or not, you want to use a set() with the merge() option like this (this example is for Java):

    // 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());

  • Also one classical problem when using auth.currentUser is that it is possible that the Auth object is not fully initialized and that auth.currentUser.uid is therefore null. As explained in the doc you should either use the onAuthStateChanged() observer or check that auth.currentUser is not null.

Try :

    ElevatedButton.styleFrom(primary: Colors.redAccent),
     onPressed: () 
    async {
     DocumentReference edit = FirebaseFirestore .instance .collection('edit') .doc(FirebaseAuth.instance.currentUser.uid) .collection('edit') .doc(widget.data.documentId); 
edit.update({ });

Upvotes: 1

J.K.
J.K.

Reputation: 303

The cloud_firestore/not-found error means the document was not found under the specified id. Please make sure the id really exists in your database.

If you are using the local emulator, make sure you are accessing the correct database.

If you are using persistent storage (offline firestore data) it might be that it still has old data or your device didn't connect to the internet and thus doesn't have the current data.

Upvotes: 0

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